Scania EMS Fault codes: 8192-11175

By | 25/11/2018

EMS Scania Engine Control Unit Fault codes list 8192-11175

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Scania EMS Fault codes: 8192-11175

EMS 8192

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Coolant temperature sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

  • An open in the coolant temperature sensor circuit.
  • Malfunction in the electrical circuit of the charge air pressure sensor, charge air temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. If the engine is actually colder than the pre-programmed value, it will idle more unevenly and be more difficult to start.

The engine will operate at a high idle speed as long as the fault is present.

On engines equipped with an EGR system, the engine control unit will turn off the system.

Elimination:

  1. Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.

EMS 8193

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Coolant temperature sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

  • Short to coolant temperature sensor circuit.
  • Malfunction in the electrical circuit of the charge air pressure sensor, charge air temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. If the engine is actually colder than the pre-programmed value indicates, it will idle more irregularly and be more difficult to start.

The engine will operate at a high idle speed as long as the fault is present.

On engines equipped with an EGR system, the engine control unit will turn off the system.

Elimination:

  1. Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.

EMS 8194

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

If a fault occurs, the control unit uses a pre-programmed value. If the engine is actually colder than the pre-programmed value indicates, it will idle more irregularly and be more difficult to start.

The engine will operate at increased idle speed as long as there is a malfunction.

The engine control unit will turn off the EGR system on engines equipped with this system.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 8194

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Particulate filter

Fault:

Too low pressure drop in the particulate filter.

The reasons:

A possible malfunction is the absence of a filter in the muffler or a malfunction of the differential pressure sensor.

Notes:

This malfunction may lead to an increase in soot particulate emissions.

Elimination:

Check:

  1. whether the filter is installed in the muffler
  2. differential pressure sensor
  3. connections in front of the silencer and after it to the differential pressure sensor
  4. signal between differential pressure sensor and engine control unit
  5. no damage to exhaust system and particulate filter

EMS 8204

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The temperature in the area after the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area after the filter in less than 2 minutes.

The reasons:

Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.

Notes:

The red engine indicator light comes on. Filter regeneration is completely blocked.

Elimination:

  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. A malfunction in the differential pressure sensor can create an excessively high particulate load, as a result of which an excessively high temperature may occur during regeneration. Perform the following sensor test: When the power is on, the value should be approximately zero. Start the engine and make sure that the high idle speed value is different from zero.
  4. If the fault persists, check the wiring harness and connectors between the sensor and the control unit. Also ensure that there is no damage to the exhaust system, and the sensor piping is not blocked.
  5. If the problem persists, replace the sensor.
  6. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 8205

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The temperature in the area after the diesel particulate filter (DPF) is excessively high for normal movement. It is registered by a temperature sensor after the filter.

The reasons:

Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.

Notes:

The red engine warning light comes on, the engine stops.

Elimination:

  1. Compare with SDP3 the values ​​of the temperature sensors (T158) taken from the muffler or at high idle, PTO 1000 1 / min. After the end of the stabilization period, all three sensors should produce similar values. If not, replace the appropriate item.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. See “Internal leakage” and “Cylinder pressure balance” in SDP3. A low engine oil level may indicate an oil leak.
  3. A malfunction in the differential pressure sensor can create an excessively high particulate load, as a result of which an excessively high temperature may occur during regeneration. Perform the following sensor test: When the power is on, the value should be approximately zero. Start the engine and make sure that the high idle speed value is different from zero.
  4. If the fault persists, check the wiring harness and connectors between the sensor and the control unit. Also ensure that there is no damage to the exhaust system, and the sensor piping is not blocked.

EMS 8206

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The temperature at the front of the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area in front of the filter in less than 2 minutes.

The reasons:

Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.

Notes:

The red engine indicator light comes on. Filter regeneration is completely blocked.

Elimination:

  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 8207

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Oxidizing Catalytic Converter

Fault:

The temperature difference between the inlet and outlet openings of the oxidation catalytic converter is greater than expected during normal motion.

The reasons:

  1. Leakage and oil or fuel entering the exhaust stream in front of the silencer.
  2. Malfunction of temperature sensors T158 or other sensors in the engine management system EMS or in the exhaust gas neutralization system EEC3.

Notes:

The engine warning light comes on.

Elimination:

  1. Using SDP3, compare temperature sensors T158 removed from the muffler. After a short time, all sensors show almost the same temperature. If not, replace the appropriate item.
  2. Check the malfunction codes and eliminate the corresponding malfunctions for the sensors in the EMS engine management system or in the EEC3 exhaust gas after-treatment system.
  3. Check for leakage of oil or fuel in the exhaust gas stream before the oxidation catalytic converter. Check nozzles with SDP3. A low engine oil level may indicate an oil leak.
  4. To check the quality of repair, allow the engine to work with a load of up to 30 minutes.

EMS 8216

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Additional drive 14 (aux14), short circuit from low to +24

Fault:

Reset is not defined.

The reasons:

No description

Notes:

No description

Elimination:

No description

EMS 8225

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Additional drive 14 (aux14), open load

Fault:

Reset is not defined.

The reasons:

No description

Notes:

No description

Elimination:

No description

EMS 8234

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR Coolant Valve

Fault:

The voltage on the coolant valve in the SCR heating circuit is out of range.

The reasons:

An open circuit or short to ground on the valve circuit.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off.

When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The nominal valve resistance at room temperature is 140 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8234

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Water Reagent Heating Valve

Fault:

The voltage in the circuit was outside the limits.

The reasons:

An open or short to ground in the water valve electrical circuit to heat the reagent.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The normal resistance of a water valve at room temperature should be approximately 140 ohms.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8236

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Water Reagent Heating Valve

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Short circuit on the electric circuit + 24 V in the electric circuit of the water heating valve.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The normal resistance of a water valve at room temperature should be approximately 140 ohms.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8236

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR Coolant Valve

Fault:

Short to + coolant valve battery in the SCR heating circuit.

The reasons:

No description

Notes:

The SCR system is deactivated and the injection of the reagent is turned off.

When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The nominal valve resistance at room temperature is 140 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8237

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR system

Fault:

The pressure in the SCR system drops more than expected when the reagent is not injected.

The reasons:

Leakage in the reagent dispenser, reagent supply lines or internal leaks in the main unit.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off.

When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check for leakage in the SCR system. Leakage in the main unit is an unusual phenomenon. If this happens, replace the main unit.
  2. Perform system checks in SDP3.
  3. In order to verify that the malfunction has been rectified, in SDP3, recognize the invalidity of the malfunction codes of the NOx control system. Recognition of invalidity must be performed outdoors because the exhaust gases are very hot. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8237

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Reagent Pressure

Fault:

During periods when the reagent is not injected, the pressure in the SCR system decreases more than it should be.

The reasons:

Leaks in reagent supply lines, reagent dispenser or internal leaks in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check for leaks in the SCR system.
  2. Check the vent valve. If the vent valve is stuck open, replace the vent valve.
  3. If the fault lies in the main unit, it should be replaced. However, it is uncharacteristic that the fault lay in the main unit. Before replacing the SCR control unit, make sure that the fault is not caused by something else.
  4. Perform the system checks that are provided in SDP3 for the SCR system. System checks can help detect some of the faults listed above.
  5. Continue as follows to ensure that the problem is resolved:
  6. To ensure that the problem has been rectified, you can check the “Recognizing DTCs for NOx Control Invalid”, which is located on the “Checks” tab in SDP3. This test should be performed outdoors because the exhaust gas temperature becomes very high and there is a risk that the exhaust gas hose will melt. It takes about 5-30 minutes to complete the test.
  7. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  8. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8247

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR air pressure

Fault:

The air pressure in the SCR system was out of range.

The reasons:

  • The malfunction may be due to too low air pressure from the vehicle to the SCR system.
  • This can also be due to air leakage in the SCR system: either internal leakage in the main unit or in the air ducts outside the main unit.
  • A fault code is also generated if the pressure is too high due to blockage in the SCR system.

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check whether the air pressure in the car’s compressed air system was too low at the time the fault code was issued.
  2. If the air pressure was below 7.2 bar, there may be a fault not related to the SCR system.
  3. Check for leaks or blockages in the air lines.
  4. If the fault lies inside the main unit, the main unit should be replaced.
  5. Perform the system checks that are provided in SDP3 for the SCR system. System checks can help detect some of the faults listed above.
  6. In order for the control unit to verify a fault, it must perform a sequence of checks. When the control unit performs a complete sequence of checks without detecting a fault, the fault becomes inactive.
  7. The conditions under which the control unit checks:
  8. There should be no active DTCs for air pressure or reagent pressure.
  9. The air pressure in the compressed air supply system of the car should be in the range of 7.1 – 8.5 bar.
  10. Start the engine and turn it off. Repeat four times. The control unit must perform the test in four consecutive cycles.
  11. You can click on the DTC monitoring function and view the DTC. There you can see if the conditions under which the control unit confirms that the fault has been eliminated have been satisfied. When conditions are satisfied and a check is performed, the status of the DTC is displayed during the check process. If the DTC is under review, the control unit has detected a fault. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  12. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8249

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  2. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8250

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

Short circuit to + battery level sensor in the reagent tank.

The reasons:

Short circuit to + battery level sensor in the reagent tank.

Notes:

Reagent injection is turned off.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Sensor resistance should be 92 – 397 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8252

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

Short circuit in the level sensor circuit in the reagent tank.

The reasons:

Short circuit in the level sensor circuit in the reagent tank.

Notes:

Reagent injection is turned off.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Sensor resistance should be 92 – 397 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8252

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – tank level sensor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Short circuit in the electrical circuit of the level sensor in the reagent tank.

Notes:

If the signal voltage is out of range, the control unit uses a preprogrammed value of 100% (full tank).

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Check the electrical components, electrical connectors and wiring.
  3. Sensor resistance should be 92–397 ohms.
  4. Continue as follows to ensure that the problem is resolved:
  5. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  6. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  7. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8253

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – tank level sensor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

A break in the electrical circuit of the level sensor in the reagent tank.

Notes:

If the signal voltage is out of range, the control unit uses a preprogrammed value of 100% (full tank).

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Check the electrical components, electrical connectors and wiring.
  3. Sensor resistance should be 92–397 ohms.
  4. Continue as follows to ensure that the problem is resolved:
  5. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  6. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  7. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8253

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

An open in the reagent tank level sensor circuit.

The reasons:

An open in the reagent tank level sensor circuit.

Notes:

Reagent injection is turned off.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Sensor resistance should be 92–397 ohms.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8255

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Low reagent

Fault:

Low level of reagent in the tank.

The reasons:

Low level of reagent in the tank.

Notes:

Reagent injection is turned off, which negatively affects the level of NOx emissions from the engine.

In the case of engines with a NOx control system, a 40% reduction in torque is active as long as the DTC is active.

Elimination:

  1. Fill the tank as described in the Operation Manual and wait a few minutes.
  2. If the DTC is still active, check the level sensor float.
  3. On engines with a NOx control system, this corrective action should be monitored as follows: Turn on the on-board power supply with the ignition key. If the fault is resolved, the fault code will become inactive.

EMS 8255

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Level in the reagent tank

Fault:

The amount of reagent in the tank below the permissible value.

The reasons:

Or too little reagent in the tank or a level sensor in the tank is faulty.

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Refill reagent. If there is enough reagent in the tank, check the level sensor.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off and turn on the ignition with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8256

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  2. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8260

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  2. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8260

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Electrical failure of the reagent temperature sensor.

The reasons:

Electrical failure of the reagent temperature sensor.

Notes:

Reagent injection is turned off.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system , engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8261

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Exceeded lower temperature limit.

The reasons:

Internal malfunction in the main unit.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8261

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  2. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8265

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Reagent Dispenser

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Short circuit on the + 24 V electrical circuit in the reagent dispenser electrical circuit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser should be 14-15 Ohms at a temperature of 20 ° C.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8263

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Reagent Dispenser

Fault:

The voltage in the circuit was outside the limits.

The reasons:

An open or a short to ground in the electrical circuit of the reagent dispenser.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated . Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser at a temperature of 20 ° C should be in the range between 14 Ohm and 15 Ohm.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8263

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent Dispenser

Fault:

An open circuit or short to ground in the electrical circuit of the reagent dispenser.

The reasons:

An open circuit or short to ground in the electrical circuit of the reagent dispenser.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off.

When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser should be 14-15 Ohms at 20 ° C.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8265

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent Dispenser

Fault:

Short to + reagent dispenser battery or power circuit.

The reasons:

Short to + reagent dispenser battery or power circuit.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off.

When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. The resistance of the reagent dispenser should be 14-15 Ohms at 20 ° C.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8267

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Unreliable reagent pressure.

The reasons:

Internal malfunction in the main unit.

Notes:

Reagent injection is turned off.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on.

Elimination:

  1. Replace the main unit.
  2. Using SDP3, execute “Invalidation of DTCs for the NOx Control System”. This procedure must be performed outdoors because the exhaust gases are very hot.
  3. Alternatively, allow the engine to operate at speeds above 1000 rpm until the SCR system starts. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8267

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Reagent Pressure

Fault:

The pressure in the system during normal operation was above the allowable value.

The reasons:

The cause of the malfunction may be:

  • Malfunction in diaphragm pump.
  • Malfunction of the main unit

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Replace diaphragm pump.
  2. Check if diesel fuel has entered the main unit. If diesel is present in the unit, thoroughly flush the main unit and replace the diaphragm pump, gaskets and vent valve.
  3. Replace the main unit.
  4. Continue as follows to ensure that the problem is resolved:
  5. There should be no active DTCs for air pressure in the SCR system, for faults in the main unit, for blocking the injection device, or for a temperature sensor downstream of the catalytic converter. Nor should there be an active DTC for leaks in the SCR system.
  6. To ensure that the problem has been rectified, you can check the “Recognizing DTCs for NOx Control Invalid”, which is on the “Checks” tab in SDP3. This test should be performed outdoors because the exhaust gas temperature becomes very high and there is a risk that the exhaust system will melt. Performing this check may take from 5 to 30 minutes, depending on which DTCs are active.
  7. Otherwise, you can perform the following actions so that the control unit recognizes the failure as invalid:
  8. Start the engine and verify that the engine speed is above 1000 rpm and that the SCR system starts. If the temperature is below -8 ° C or the reagent is frozen, the SCR system will not start.
  9. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  10. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8268

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8268

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Reagent pressure sensor, voltage outside acceptable range.

The reasons:

Internal malfunction in the main unit.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8269

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Reagent pressure sensor, voltage outside permissible limits.

The reasons:

Internal malfunction in the main unit.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8269

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8277

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Mountain brake drive, open load

Fault:

Reset not defined

The reasons:

No description

Notes:

No description

Elimination:

No description

EMS 8280

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Drive mountain brake, short to low to +24

Fault:

Reset not defined

The reasons:

No description

Notes:

No description

Elimination:

No description

EMS 8282

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

The voltage in the reagent tank temperature sensor circuit was out of range.

The reasons:

An open circuit.

Notes:

No description

Elimination:

  1. Check the electrical components, electrical connectors and wiring. To test the sensor, remove it and measure the resistance. At a temperature of 15–25 ° C, the resistance should be in the range of 1500–2100 Ω.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8283

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

Invalid reagent temperature.

The reasons:

The temperature sensor values ​​are invalid, or the tank heating system is faulty.

Notes:

No description

Elimination:

  1. Check for a signal from the temperature sensor in the tank. Check sensor connectors and wiring for visible damage. Check the coolant valve to warm up the tank for binding in the closed position.
  2. On engines with a NOx control system, this corrective action should be monitored as follows:
  3. Reagent temperature above -8 ° C:
  4. Switch off the on-board power supply with the ignition key, wait 90 seconds.
  5. Turn on the power.

EMS 8284

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank

Fault:

Reagent temperature sensor short circuit.

The reasons:

Reagent temperature sensor short circuit.

Notes:

No description

Elimination:

  1. Check the electrical components, electrical connectors and wiring. To test the sensor, remove it and measure the resistance. At a temperature of 15–25 ° C, the resistance should be in the range of 1500–2100 Ω.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8284

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – tank temperature sensor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Short circuit in the tank temperature sensor electrical circuit

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Check the electrical components, electrical connectors and wiring.
  3. To verify that the sensor is working, remove it and measure its resistance.
  4. At a temperature of 15-25 ° C, the resistance should be in the range of 1 500-2 100 Ohm.
  5. Continue as follows to ensure that the problem is resolved:
  6. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  7. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  8. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8285

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – tank temperature sensor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

An open in the temperature sensor circuit

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. For troubleshooting the SCR system, refer to the Scania Multi 03-25 “Exhaust System, SCR (Selective Catalytic Reduction)” section.
  2. Check the electrical components, electrical connectors and wiring.
  3. To verify that the sensor is working, remove it and measure its resistance.
  4. At a temperature of 15-25 ° C, the resistance should be in the range of 1 500-2 100 Ohm.
  5. Continue as follows to ensure that the problem is resolved:
  6. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  7. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  8. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8291

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Battery voltage

Fault:

The SCR control unit indicated that the battery voltage was below the allowable value.

It was below 8.6 V.

The reasons:

The fault may occur during a cold start, if the battery is in poor condition.

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the battery and alternator.
  2. Check the connectors and wiring.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off and turn on the onboard power supply with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8291

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR control unit

Fault:

Low battery voltage.

The reasons:

The fault may occur during a cold start, if the battery is in poor condition.

Notes:

Reagent injection is turned off.

Elimination:

  • Check the battery, alternator, electrical connectors and wiring.
  • Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  • Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8292

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR control unit

Fault:

High battery voltage.

The reasons:

Malfunction may occur when using a forced charge device.

Notes:

High voltage can damage the SCR system.

Reagent injection is turned off.

Elimination:

  1. Check the battery, alternator, electrical connectors and wiring.
  2. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8292

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Battery voltage

Fault:

The SCR control unit indicated that the battery voltage was above the allowable value.

It was above 64.6 V.

The reasons:

This may be caused by the work start-charger.

Notes:

High voltage levels can damage the SCR system.

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the battery and alternator.
  2. Check the connectors and wiring.
  3. Continue as follows to ensure that the problem is resolved:
  4. Turn off and turn on the onboard power supply with the ignition key.
  5. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  6. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8319

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent

Fault:

Insufficient reduction in NOx emissions even though the maximum amount of reagent is injected.

The reasons:

  • Inadequate reagent quality.
  • Injection nozzle closure.
  • Worn low sensitivity NOx sensor.
  • Faulty charge air pressure sensor or other sensor in the system.
  • Worn catalytic converter.

Notes:

No description

Elimination:

  1. Check other malfunction codes and eliminate related problems related to NOx emissions.
  2. Make sure that the reagent tank contains the correct type of reagent.
  3. Check for blockage in the reagent hoses or in the injection nozzle.
  4. Make sure the reagent dispenser is not blocked.
  5. Check the NOx sensors. Do not confuse the sensors before and after the catalytic converter.
  6. Check that the catalytic converter is intact.

EMS 8320

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

A temperature sensor located in front of the oxidizing catalytic converter produces an incompatible value when pairwise matching the three sensors.

The reasons:

Malfunction in temperature sensors T158.

Leakage of oil or fuel in the muffler.

Notes:

Filter regeneration blocked.

Elimination:

  1. Compare with SDP3 the values ​​of the temperature sensors (T158) taken from the muffler or at high idle, PTO 1000 1 / min. After the end of the stabilization period, all three sensors should produce similar values. If not, replace the appropriate item.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check the fuel system using SDP3, for example, for injector faults. Low engine oil may be a sign of oil leakage.
  3. Remove the flexible pipe coming from the muffler and check if black or white smoke is released when the throttle is opened. White smoke indicates the presence of excess fuel, which may result in the registration of this DTC.

EMS 8324

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The temperature sensor, located after the oxidative catalytic converter, gives an incompatible value when pairwise matching the three sensors. The test is carried out for 60 minutes while driving under load, but not during idling.

The reasons:

  • Malfunction of temperature sensors T158.
  • Oil or fuel leak in a silencer.
  • Malfunction of other sensors.

Notes:

The engine warning light comes on, regeneration is completely blocked.

Elimination:

  1. Compare with SDP3 the values ​​of the temperature sensors (T158) taken from the muffler or at high idle, PTO 1000 1 / min. After the end of the stabilization period, all three sensors should produce similar values. If not, replace the appropriate item.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. Remove the flexible pipe coming from the muffler and check if black or white smoke is released when the throttle is opened. White smoke indicates the presence of excess fuel, which may result in the registration of this DTC.
  4. To check the quality of the repair, let the engine run under load for 60 minutes.

EMS 8334

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent Dispenser

Fault:

The pressure in the SCR system does not fall as expected when the valve is opened.

The reasons:

The reason may be the freezing or crystallization of the reagent in the pipelines, hoses, the reagent dispenser or the injection nozzle.

Notes:

Reagent injection is turned off.

Elimination:

  1. Check the coolant level. Start the engine and check that the coolant is circulating properly and the reagent suction manifold warms up. Make sure the coolant valve opens fully.
  2. Perform SCR system checks in SDP3.
  3. Verify that the malfunction has been resolved. Using SDP3, execute “Invalidation of DTCs for the NOx Control System”. This procedure must be carried out outdoors because the exhaust gases are very hot and there is a danger of the melting of the exhaust system.

EMS 8346

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Faulty pressure sensor after throttle.

The reasons:

Faulty pressure sensor after throttle.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8347

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Unreliable air pressure after throttle.

The reasons:

Unreliable air pressure after throttle.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8348

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Low air pressure after throttle.

The reasons:

Low air pressure after throttle.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8348

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off and turn on the ignition with the ignition key. If the DTC remains active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off and turn on the ignition with the ignition key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8349

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Turn off and turn on the ignition with the ignition key. If the DTC remains active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off and turn on the ignition with the ignition key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8349

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Air pressure sensor after the throttle, high voltage.

The reasons:

Air pressure sensor after the throttle, high voltage.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8350

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Unreliable air pressure after throttle.

The reasons:

Unreliable air pressure after throttle.

Notes:

Reagent injection is turned off.

Elimination:

  1. Turn off and turn on the onboard power supply with the ignition key. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off and on the power with the ignition key. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8351

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Reagent tank heating

Fault:

Too low a temperature in the reagent tank.

The reasons:

  • temperature sensor fault in the reagent tank.
  • Water heating system valve may be stuck in the closed position.

Notes:

The fault affects NOx emissions from a car. The NOx emissions warning lamp comes on and a text message is displayed.

If the car is equipped with an NOx control system, engine torque is reduced by approximately 40%.

The fault code cannot be cleared while the fault is present.

Elimination:

  1. Check reagent tank temperature sensor and its wiring.
  2. Check the water valve of the heating system for binding in the closed position.
  3. To verify that the problem is resolved, follow these steps:
  4. Ensure that the temperature in the reagent tank is above -8 ° C.
  5. Switch off the onboard power using the ignition key. Wait at least 90 seconds and then turn on the power again.
  6. If the fault is resolved, the fault code becomes inactive. Then clear the fault code.
  7. Extinguish the test lamp by turning the ignition key off and on three times. Pause 10 seconds between each cycle.

EMS 8352

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Open reagent vent valve circuit.

The reasons:

Open reagent vent valve circuit.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To make sure that the communication between the engine control unit and the main SCR unit is working, turn off the power, wait 90 seconds and then turn it on again.

Elimination:

  1. Turn off the onboard power and wait 90 seconds before turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code. If the DTC remains active, replace the main unit.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8352

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit or malfunction in the vent valve.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the DTC remains inactive, delete the DTC. If the DTC remains active, replace the vent valve. If the DTC remains inactive, delete the DTC. If the DTC remains active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8355

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8355

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Short circuit on the vent valve.

The reasons:

Short circuit on the vent valve.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8358

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8361

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8381

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8381

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Malfunction of the reagent heater main unit.

The reasons:

Electrical malfunction

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To make sure that the communication between the engine control unit and the main SCR unit is working, turn off the power, wait 90 seconds and then turn it on again.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the onboard power and wait 90 seconds before turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code. If the DTC remains active, replace the main unit.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8382

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Malfunction of the reagent heater main unit.

The reasons:

Electrical malfunction

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the onboard power and wait 90 seconds before turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code. If the DTC remains active, replace the main unit.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8384

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Malfunction of the reagent heater main unit.

The reasons:

Electrical malfunction

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the onboard power and wait 90 seconds before turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code. If the DTC remains active, replace the main unit.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8384

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8385

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8385

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Malfunction of the supply voltage circuit of the internal heating system pump of the main unit.

The reasons:

Electrical malfunction

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the onboard power and wait 90 seconds before turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code. If the DTC remains active, replace the main unit.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8388

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Short to battery + in the internal circulation pump.

The reasons:

Short to battery + in the internal circulation pump.

Notes:

The SCR system is deactivated and the injection of the reagent is turned off. When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Turn off the power with the key, wait 90 seconds and then turn it on again. If this DTC persists, replace the control unit. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  2. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8388

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – Main Unit

Fault:

No description

The reasons:

Internal malfunction in the main unit.

Notes:

As a result of a fault, the SCR system shuts down and the reagent injection shuts down.

When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.

When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Switch off the ignition with the key, wait for 90 seconds and then turn it on again with the key. If the fault code becomes inactive, erase the code; If the DTC is still active, replace the main unit.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the ignition with the key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8394

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR air pressure

Fault:

Air pressure at current operating conditions is lower than expected.

The reasons:

Leaks in the compressed air line between the main unit and the reagent dispenser.

This fault may be due to a blockage of the air circuit in the main unit.

Notes:

As a result of a fault, the injection of the reagent is turned off.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40%.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check for leaks between the main unit and the reagent dispenser. If there are no leaks, replace the main unit. The presence of a malfunction in the main unit is not typical. Before replacing the main unit, make sure that the fault was not caused by something else.
  2. Follow the verification system as provided in SDP3 for the SCR system. System checks can help detect some of the faults listed above.
  3. Continue as follows to ensure that the problem is resolved:
  4. There should be no active DTCs for air pressure in the SCR system, for faults in the main unit, for blocking the injection device, or for a temperature sensor downstream of the catalytic converter. Nor should there be an active DTC for leaks in the SCR system.
  5. To ensure that the problem has been rectified, you can check the “Recognizing DTCs for NOx Control Invalid”, which is on the “Checks” tab in SDP3. This test should be performed outdoors, because the exhaust gas temperature becomes very high and there is a risk that the exhaust hose will melt. Performing this check may take from 5 to 30 minutes, depending on which DTCs are active.
  6. Otherwise, you can take the following steps so that the control unit recognizes the fault as invalid.
  7. Start the engine and verify that the engine speed is above 1000 rpm and that the SCR system starts. Perform a road test of 15 minutes on the road. If the temperature is below -8 ° C or the reagent is frozen, the SCR system will not start.
  8. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  9. To turn off the alarm, turn off and turn on the ignition with the ignition key three times in a row at 10-second intervals.

EMS 8394

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Pneumatic circuit SCR

Fault:

Air pressure in SCR system too low.

The reasons:

Leakage in the air line between the main unit and the reagent injection nozzle.

Notes:

No description

Elimination:

  1. Perform a leak test in the air line between the main unit and the reagent injection nozzle.
  2. Perform SCR system checks in SDP3.
  3. Verify that the malfunction has been resolved: With SDP3, perform “Invalidation of DTCs for the NOx control system”. This procedure must be carried out outdoors because the exhaust gases are very hot and there is a danger of the melting of the exhaust system.

EMS 8426

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

The control unit of the system to reduce toxicity of exhaust gases

Fault:

The exhaust emissions control unit is shutting down too soon.

The reasons:

If the car has a battery ground switch, the cause of the malfunction may be the use of the battery ground switch less than 90 seconds after the key is turned off.

Causes of failure may be the following:

Malfunction in the SCR power supply circuit.

Internal malfunction in the control unit of the exhaust gas reduction system.

If the DTC was generated in conjunction with DTC 5657, the reason probably lies outside the SCR system.

Notes:

The SCR system will not shut down correctly if the control unit is turned off too early. The reagent will still remain in the injection hoses and injectors. At low temperatures there is a risk of damage to the SCR system from ice formation in the hoses.

Elimination:

  1. Switch off the ignition with the ignition key. Wait 90 seconds and then turn on the ignition again.
  2. If the DTC becomes inactive: Clear the DTC.
  3. If the DTC remains active and if DTC 5657 is not generated: The voltage supply to the control unit is checked.
  4. If the fault is in the control unit, replace the control unit.

EMS 8427

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR main unit

Fault:

Power to the main unit turns off too late.

The reasons:

Internal malfunction or fault in the electrical circuit.

Notes:

The power does not turn off, which can lead to a battery discharge.

Elimination:

Check the electrical wiring. If the fault lies in the main unit, it should be replaced.

EMS 8430

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR system

Fault:

The level of nitrogen oxides after the catalytic converter is higher than expected.

The reasons:

The SCR system does not reduce the level of nitrogen oxides. This may be due to a malfunctioning catalytic converter, a malfunctioning NOx sensor, or an inoperative reagent dosing system.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check for any other trouble codes related to exhaust emissions.
  2. Make sure that the tank contains the correct type of reagent.
  3. Verify that there is no blockage in the injection nozzle or lines.
  4. Check the crystallization in the catalyst or reagent dispenser.
  5. Check the NOx sensors. Do not confuse the sensors before and after the catalytic converter.
  6. Check that the catalytic converter is intact.
  7. In order to ensure that the malfunction has been rectified, in SDP3, recognize the invalidity of the malfunction codes of the NOx control system. Erase the fault code, and select “Reset NOx data” under “Adjustments” in SDP3.

EMS 8448

Blocks:

2098557, 2098556

Title:

Charge air temperature sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

Open circuit in the temperature sensor charge air.

Malfunction in the electrical circuit of the charge air pressure sensor, coolant temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

  1. Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.

EMS 8449

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Charge air temperature sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

  • Short circuit in the charge air temperature sensor circuit.
  • Malfunction in the electrical circuit of the charge air pressure sensor, coolant temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

  1. Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.

EMS 8449

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Throttle Actuator

Fault:

The deviation between the requested and measured throttle angle.

The reasons:

Electrical fault, open circuit or short circuit in the electrical circuit.

Notes:

The system can go into fail-safe mode.

Elimination:

  1. Check fuses.
  2. Check wiring and connectors.
  3. Perform the throttle actuator and potentiometer diagnostics.
  4. If the engine is gas driven: Replace the ME7 unit.

EMS 8450

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

Short circuit to + battery, to ground or open the electrical circuit of the actuator throttle.

The reasons:

Short circuit of pin 3 in connector A4.

Notes:

Unable to control throttle.

Elimination:

Check valve block V107 wiring harness and connectors. Measure the resistance in the valve block and check that it meets the specification.

EMS 8450

Blocks:

2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 8451

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

Short to battery + in the actuator of the throttle valve.

The reasons:

Short to battery + in the actuator of the throttle valve.

Notes:

As a result of inadvertent actuation, the throttle valve may close. This can lead to loss of engine power and poor handling.

Elimination:

Check valve block V107 wiring harness and connectors. Measure the resistance in the valve block and check that it meets the specification.

EMS 8454

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Throttle Actuator

Fault:

Fuel management has been deactivated due to high temperature, high amperage, or low voltage.

The reasons:

The output stage in ME7 does not work.

Notes:

The engine goes into failsafe mode of operation.

Elimination:

Check fuses.

Replace the ME7 unit.

EMS 8465

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle valve remains open despite the closing request.

The reasons:

Throttle valve stuck open.

Notes:

Throttle valve control is disabled, but an invalidation check is performed for each shutdown.

Elimination:

Ensure that nothing blocks the throttle valve movement. Check for air leaks. Check the throttle position sensor.

EMS 8466

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle valve remains closed despite the request for opening.

The reasons:

Throttle valve stuck closed.

Notes:

Throttle valve control is disabled, but an invalidation check is performed for each shutdown. This can lead to loss of engine power and poor handling.

Elimination:

Ensure that nothing blocks the throttle valve movement. Check the throttle position sensor.

EMS 8481

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The end positions of the position sensor are outside the limits.

The reasons:

Position Sensor Malfunction

Notes:

Unable to adjust throttle valve.

Elimination:

Check the supply voltage to the valve block and the position sensor. Check wiring and connectors. Check throttle valve function.

EMS 8482

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle position sensor, potentiometer 1, indicates an incorrect position.

The reasons:

Short to ground or open circuit.

Notes:

Maximum engine torque is limited.

The control unit uses a wildcard value.

Elimination:

  1. Check fuses.
  2. Check whether there is a short circuit of potentiometer 1 to ground.
  3. Check throttle valve function.
  4. Replace throttle valve assembly.
  5. Replace the ME7 control unit.

EMS 8483

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle position sensor, potentiometer 1, indicates an excessively high voltage.

The reasons:

Short to battery “+” in potentiometer 1.

Notes:

Maximum engine torque is limited.

The control unit uses a wildcard value.

Elimination:

  1. Check fuses.
  2. Check for a short circuit on the throttle valve potentiometers to the battery voltage.
  3. Check throttle valve function.
  4. Replace throttle valve assembly.
  5. Replace the ME7 control unit.

EMS 8487

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle position sensor, potentiometer 2, indicates an incorrect position.

The reasons:

Short to ground or open circuit.

Notes:

Maximum engine torque is limited.

The control unit uses a wildcard value.

Elimination:

  1. Check fuses.
  2. Check for throttle valve potentiometers short circuit to earth.
  3. Check throttle valve function.
  4. Replace throttle valve assembly.
  5. Replace the ME7 control unit.

EMS 8488

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The throttle position sensor, potentiometer 2, indicates an excessively high voltage.

The reasons:

Short to battery “+” in potentiometer 2.

Notes:

Maximum engine torque is limited.

The control unit uses a wildcard value.

Elimination:

  1. Check fuses.
  2. Check for throttle valve potentiometers short circuit to earth.
  3. Check throttle valve function.
  4. Replace throttle valve assembly.
  5. Replace the ME7 control unit.

EMS 8504

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Throttle valve

Fault:

The discrepancy between the two potentiometers of the throttle position sensor.

The reasons:

Malfunction of one or both potentiometers.

Notes:

May cause the engine to stop or activate the emergency mode.

Elimination:

  1. Check fuses.
  2. Check the supply voltage to the throttle valve potentiometers and to the valve block.
  3. Check wiring and connectors.
  4. Check throttle valve function.
  5. Replace throttle valve assembly.
  6. Replace the ME7 control unit.

EMS 8567

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Lambda regulation

Fault:

Lambda control has fallen below the minimum permissible limit value.

The reasons:

  • Air / fuel mixture too lean.
  • Possible reasons:
  • Gas supply not working.
  • Indications of mass air flow and fuel injection wrong.
  • Malfunction in one or more nozzles.

Notes:

Fault condition can be compensated to some extent by lambda control.

There is a risk of misfire.

Elimination:

Check the gas supply and injectors.

EMS 8568

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Lambda regulation

Fault:

Lambda control has exceeded the maximum permissible limit value.

The reasons:

  • Air / fuel mixture too lean.
  • Possible reasons:
  • Gas supply not working.
  • Indications of mass air flow and fuel injection wrong.
  • Malfunction in one or more nozzles.

Notes:

Fault condition can be compensated to some extent by lambda control.

There is a risk of misfire.

Elimination:

Check the gas supply and injectors.

EMS 8583

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Gas mixture

Fault:

The engine management system registered by means of Lambda regulation too much air in the gas mixture.

The reasons:

  • The readings of the mass air flow sensor are incorrect.
  • Air leak in intake manifold
  • Gas supply is unsatisfactory

Notes:

Fault condition can be compensated to some extent by lambda control.

There is a risk of misfire.

Elimination:

Completely check the gas and air supply systems.

EMS 8584

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Gas mixture

Fault:

The engine management system registered, by means of Lambda regulation, too little air in the gas mixture.

The reasons:

  • The readings of the mass air flow sensor are incorrect.
  • Air filter clogged
  • Gas supply is unsatisfactory

Notes:

Fault condition can be compensated to some extent by lambda control.

There is a risk of misfire.

Elimination:

Completely check the gas and air supply systems.

EMS 8704

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901

Title:

SCR – NOx sensor after catalytic converter

Fault:

The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.

The reasons:

An open circuit in the NOx sensor circuit

Notes:

Functions in the SCR system are not affected.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8704

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Boost pressure sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

  • An open circuit in the charge air pressure sensor circuit.
  • Malfunction in the electrical circuit of the coolant temperature sensor, charge air temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

With this fault, the engine torque is reduced by approximately 30% while the fault code is active. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.

EMS 8705

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Boost pressure sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

  • Short circuit of the charge air pressure sensor circuit.
  • Closed intake system.
  • Malfunction in the electrical circuit of the coolant temperature sensor, charge air temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

With this fault, the engine torque is reduced by approximately 30% while the fault code is active. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

  1. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits. Clear the DTC memory and check if the fault persists.
  2. If the DTC remains active, check to see if the intake system is blocked by ice or foreign particles.
  3. Also make sure that the connecting pipes are intact and not compressed.

EMS 8705

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901

Title:

NOx sensor

Fault:

The signal from the NOx sensor does not change as prescribed.

The reasons:

Malfunction or incorrect installation of the NOx sensor.

Notes:

No description

Elimination:

Check that the NOx sensor is installed correctly and, if necessary, replace the NOx sensor.

You can use the following options to verify that the malfunction has been resolved: To verify that you have corrected the malfunction, you can run the “Recognize the DTCs for NOx Validation” test, which is located on the “Checks” tab in SDP3. The test takes approximately 30 minutes and should be performed outdoors.

Otherwise, you can take the following steps so that the control unit recognizes the fault as invalid. Perform a road test of the car and check if the engine and catalytic converter are warm. The NOx sensor is activated when the temperature rises above 120 ° C. The invalidation test starts 5 minutes after the activation of the NOx sensor.

For vehicles with NOx control

To verify troubleshooting:

  1. Perform the “Recognize NOx Control DTCs” test or perform a road test as described above.
  2. If the fault is resolved, the fault code becomes inactive.

EMS 8706

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – NOx sensor after catalytic converter

Fault:

The SCR control unit received a message from the NOx sensor stating that there is a short in the circuit.

The reasons:

Short circuit in the NOx sensor electrical circuit.

Notes:

Functions in the SCR system are not affected.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8706

Blocks:

2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Mass flow meter calibration disabled.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 8707

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Charge air pressure

Fault:

The voltage from the charge-air pressure sensor was implausible compared with other pressure sensors, or there was an improbable pressure change in accordance with current operating conditions.

The reasons:

Possible reasons:

  • The intake system is blocked or leaking.
  • The charge air pressure sensor may be blocked with oil.
  • Malfunction in the turbocharger.
  • Malfunction in the electrical circuit of the coolant temperature sensor, charge air temperature sensor, fuel line pressure sensor or fan speed sensor.

Notes:

The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If a fault occurs, the control unit uses a pre-programmed value. The engine responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.

In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. This means that the control unit provides only rudimentary regulation of the EGR concentration using the preset values ​​for the position of the EGR valve. Calibration of the mass flow sensor is turned off.

Elimination:

  1. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits. Clear the DTC memory and check if the fault persists.
  2. If the fault persists, make sure that there is no leakage in the intake system and that it is not blocked, for example, with ice or mud.
  3. Also make sure that the connecting pipes are intact and not compressed.
  4. Check the turbocharger.

EMS 8723

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

NOx sensor

Fault:

NOx sensor open circuit in front of the catalytic converter.

The reasons:

NOx sensor open circuit in front of the catalytic converter.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8723

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – NOx sensor in front of the catalytic converter

Fault:

The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.

The reasons:

An open circuit in the NOx sensor circuit

Notes:

Functions in the SCR system are not affected.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8724

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

NOx sensor

Fault:

NOx sensor malfunction after catalytic converter.

The reasons:

Sensor defective or installed in wrong position.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Ensure that the NOx sensor is in the correct position and, if so, replace the sensor.
  3. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  4. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8725

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

NOx sensor

Fault:

Short circuit NOx sensor in front of the catalytic converter.

The reasons:

Short circuit in the NOx sensor electrical circuit.

Notes:

The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Make sure the problem is resolved by turning off the power with the ignition key, waiting 90 seconds and then turning it on again. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  3. Turn off and turn on the power three times at intervals of 10 seconds to deactivate the test lamp.

EMS 8725

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

SCR – NOx sensor in front of the catalytic converter

Fault:

The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.

The reasons:

An open circuit in the NOx sensor circuit

Notes:

Functions in the SCR system are not affected.

The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control

An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.

An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Continue as follows to ensure that the problem is resolved:
  3. Turn off the power with the ignition key, wait at least 90 seconds and then turn it on again with the key.
  4. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  5. Using the ignition key, turn off and turn on the power three times in a row at intervals of 10 seconds to deactivate the test lamp.

EMS 8742

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Atmospheric pressure sensor

Fault:

The atmospheric pressure sensor gives an incorrect signal.

The reasons:

There is a malfunction in the atmospheric pressure sensor.

Notes:

On vehicles with NOx emissions control, engine torque is reduced if this DTC remains active for 36 hours.

Elimination:

The atmospheric pressure sensor is connected to the coordinator. Read the trouble codes for the coordinator and follow the instructions given here.

EMS 8802

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Charge air pressure

Fault:

Charge air pressure too low.

The reasons:

Possible reasons:

  • Leakage in the charge air system.
  • Faulty charge air pressure sensor.
  • Turbocharger malfunction.

Notes:

Engine torque is reduced.

There is a danger of smoking.

Elimination:

  1. Check the charge air system for leaks.
  2. Check the charge air pressure sensor.
  3. Check the turbocharger.
  4. If the operating time since the generation of the fault code exceeds 10 hours, empty the EGR cooler, as there is a danger of condensation in the air-cooled EGR cooler after the EGR system is turned off. Empty the EGR cooler following the instructions given in the manual for service stations, subgroup 01-65.

EMS 8960

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Oil temperature sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

An open circuit in the oil temperature sensor circuit

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

Elimination:

  1. Ensure that the oil temperature and the coolant temperature are about the same when the engine is cold.
  2. Check the electrical components, electrical connectors and wiring.

EMS 8961

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Oil temperature sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Short circuit in the circuit of the oil temperature sensor

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

Elimination:

  1. Ensure that the oil temperature and the coolant temperature are about the same when the engine is cold.
  2. Check the electrical components, electrical connectors and wiring.

EMS 8962

Blocks:

2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 9216

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Oil pressure sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

  • An open in the oil pressure sensor circuit.
  • Malfunction of the electrical circuit of the fuel temperature sensor or electrical circuit of the mass flow sensor.

Notes:

An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.

Elimination:

Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.

EMS 9217

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Oil pressure sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

  • Short circuit in the oil pressure sensor circuit.
  • Malfunction of the electrical circuit of the fuel temperature sensor or electrical circuit of the mass flow sensor.

Notes:

An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.

Elimination:

Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.

EMS 9218

Blocks:

2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 9219

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Oil pressure sensor

Fault:

The voltage level from the sensor was implausible compared to the level that must be available for the current engine speed.

The reasons:

The cause of this DTC may be electrical or mechanical failure.

Electrical faults can be caused by damage to the wiring or sensor failure. There may also be a fault in the electrical circuit of the fuel temperature sensor or the electrical circuit of the mass flow sensor.

Mechanical faults associated with the lubrication system. The cause of low oil pressure can be, for example:

  • low oil level
  • plugged oil filter.
  • fuel ingress
  • open valve sticking
  • gasket damage
  • oil pump or suction strainer malfunction
  • The cause of high oil pressure can be, for example:
  • oil channel blockage
  • abnormal oil viscosity
  • piston cooling valve or safety valve could stop in closed position

Notes:

An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.

The oil pressure gauge on the instrument cluster shows the current oil pressure (even if it is implausible), regardless of the engine speed.

The control lamp for oil pressure is turned on only when the pressure becomes so low that it falls below the limit value for switching on this lamp.

Elimination:

Start by checking the oil level and oil filter. Then check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits. Finally, check the lubrication system and its components.

EMS 9251

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The fuel injected does not provide the intended temperature rise at the DOC oxidation catalyst.

The reasons:

  • The oxidative catalytic converter is missing, defective or worn. Rapid wear may occur due to the use of high-sulfur fuels.
  • Malfunction of exhaust gas temperature sensors T158.
  • Malfunction of other sensors.

Notes:

The engine warning light comes on, regeneration is completely blocked.

Elimination:

  1. Check the EMS and EEC fault codes associated with the sensor malfunction and make the necessary repairs.
  2. Check for damage in the exhaust pipe between the engine and the silencer, which may cause leaks.
  3. Check that there is no damage to the oxidation catalytic converter, see the description of the procedure “Removing the filter”.
  4. To verify the effectiveness of the repair, perform a service regeneration procedure using SDP3. The temperature in the exhaust system is very high, it can reach 500 ° C.

EMS 9259

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

The temperature sensor, located after the diesel particulate filter (DPF), gives an incompatible value when pairing the three sensors. The test is carried out for 60 minutes while driving under load, but not during idling.

The reasons:

  • Malfunction of temperature sensors T158.
  • Oil or fuel leak in a silencer.
  • Malfunction of other sensors.

Notes:

The engine warning light comes on, regeneration is completely blocked.

Elimination:

  1. Compare with SDP3 the values ​​of the temperature sensors (T158) taken from the muffler or at high idle, PTO 1000 1 / min. After the end of the stabilization period, all three sensors should produce similar values. If not, replace the appropriate item.
  2. Check for signs of leakage of oil and fuel in the exhaust pipe, between the engine and the muffler. Check with SDP3 the condition of the fuel system, in particular, possible injector malfunctions. A low engine oil level may indicate an oil leak.
  3. Remove the flexible pipe coming from the muffler and check if black or white smoke is released when the throttle is opened. White smoke indicates the presence of excess fuel, which may result in the registration of this DTC.
  4. To check the quality of the repair, let the engine run under load for 60 minutes.

EMS 9263

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

Increased pressure in the particulate filter.

The reasons:

The particulate filter is clogged with soot. This is probably due to the fact that the car was operated with a small load for a long time.

Notes:

If soot is present in the particulate filter, fuel consumption increases.

A large amount of soot causes an increase in engine noise, a deterioration in acceleration at high loads, and an increase in the risk of engine failure.

Elimination:

Clean the filter by driving the vehicle at high speed and with a high load for 15 minutes – 1 hour. If the DTC persists, the filter should be replaced.

EMS 9291

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

Significant pressure drop in the particulate filter.

The reasons:

  • High levels of soot or soot in the particulate filter. The filter may be damaged or blocked by foreign objects. Damage to the muffler or connecting elements.
  • Malfunction of differential pressure sensor.
  • Malfunction of temperature sensor T158 or sensors of other systems.

Notes:

The engine warning light is on, regeneration of the filter is completely blocked.

Active limiting motor torque.

Elimination:

  1. Check for the presence of DTCs related to the sensors in the EMS engine management system or in the EEC3 exhaust gas after-treatment system and carry out the necessary repairs.
  2. Check for the presence of DTCs related to the high soot level in the particulate filter and perform the necessary repairs.
  3. Check for damage and blockage to the differential pressure sensor.
  4. Check for the presence of a particulate filter, make sure that it is not damaged, not overflowed with soot or soot. If the filter is damaged or overfilled, it must be replaced.
  5. To check the quality of the repair, let the engine run under load for 30 minutes.

EMS 9298

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Particulate filter, differential pressure sensor

Fault:

The engine control unit received incorrect data from the differential pressure sensor.

The reasons:

Possible malfunctions – malfunction of the differential pressure sensor or an open circuit in the wires or connectors.

Notes:

This malfunction may lead to an increase in soot particulate emissions.

Elimination:

Check the differential pressure sensor, electrical connectors and wiring.

EMS 9299

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Particulate filter

Fault:

The difference in pressure at the inlet and outlet of the particulate filter indicates a value below normal.

The reasons:

A malfunction has occurred due to the absence of a particulate filter in the muffler or the differential pressure sensor gives incorrect readings.

Notes:

No description

Elimination:

  1. Check whether there is a particulate filter in the silencer.
  2. Check the differential pressure sensor.
  3. Check that the differential pressure sensor is properly connected to the mains.
  4. Check for signal from the sensor.
  5. Check exhaust system.
  6. Particulate filter check

EMS 9300

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Differential pressure sensor for particulate filter

Fault:

The signal from the differential pressure sensor showed a value that is lower than 0.1 V.

The reasons:

Short circuit in the differential pressure sensor circuit.

Notes:

No description

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9301

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Differential pressure sensor for particulate filter

Fault:

The signal from the differential pressure sensor showed a value that exceeds 4.9 V.

The reasons:

Short circuit in the differential pressure sensor circuit.

Notes:

No description

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9306

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

EGR, bypass valve

Fault:

Overflow valve not working.

The reasons:

A break in the relief valve circuit.

Notes:

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

Elimination:

Check the bypass valve as well as the electrical connectors and wiring.

EMS 9307

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

EGR, bypass valve

Fault:

One or more faults in the EGR bypass valve.

The reasons:

Possible malfunctions – a malfunction of the overflow valve or an open circuit in the wires or connectors.

Notes:

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

Elimination:

Perform a general troubleshooting procedure for this item. If other trouble codes are generated, first troubleshoot them.

EMS 9308

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

EGR, bypass valve

Fault:

The voltage in the circuit was out of range.

The reasons:

An open or short to ground in the electrical circuit of the relief valve.

Notes:

The engine control unit shuts off the EGR system and reduces engine power.

The fault code cannot be cleared while the fault is present.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9309

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

EGR, bypass valve

Fault:

The voltage in the circuit was outside the limits.

The reasons:

An open circuit or short circuit to + battery in the overflow valve electrical circuit.

Notes:

The engine control unit turns off the EGR system and the engine power decreases.

The fault code cannot be cleared while the fault is present.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9315

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Particulate filter

Fault:

Increased pressure in the particulate filter.

The reasons:

The particulate filter is clogged with soot. This is probably due to the fact that the car was operated with a small load for a long time.

Notes:

If soot is present in the particulate filter, fuel consumption increases.

A large amount of soot causes an increase in engine noise, a deterioration in acceleration at high loads, and an increase in the risk of engine failure.

Elimination:

Clean the filter by driving the vehicle at high speed and with a high load for 15 minutes – 1 hour. If the DTC persists, the filter should be replaced.

EMS 9317

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Particulate filter

Fault:

Significant pressure drop in the particulate filter.

The reasons:

High levels of soot or soot in the particulate filter. The filter may be damaged or blocked by foreign objects. Damage to the muffler or connecting elements.

Malfunction of differential pressure sensor.

Malfunction of temperature sensor T158 or sensors of other systems.

Notes:

The engine warning light is on, regeneration of the filter is completely blocked.

Active limiting motor torque.

Elimination:

  1. Check for the presence of DTCs related to the sensors in the EMS engine management system or in the EEC3 exhaust gas after-treatment system and carry out the necessary repairs.
  2. Check for the presence of DTCs related to the high soot level in the particulate filter and perform the necessary repairs.
  3. Check for damage and blockage to the differential pressure sensor.
  4. Check for the presence of a particulate filter, make sure that it is not damaged, not overflowed with soot or soot. If the filter is damaged or overfilled, it must be replaced.
  5. To check the quality of repair, let the engine run under light load for 30 minutes.

EMS 9482

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Oil level sensor

Fault:

Malfunction oil level sensor.

The reasons:

The malfunction may be due to the fact that several different faults occur simultaneously in the oil level sensor.

Notes:

The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.

Elimination:

Check the oil level sensor, electrical connectors and wiring.

EMS 9484

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Oil level sensor

Fault:

The voltage in the circuit was below acceptable levels.

The reasons:

Short to ground or open circuit.

Notes:

The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.

Elimination:

Check the oil level sensor, electrical connectors and wiring.

EMS 9485

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Oil level sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short circuit to + battery or open circuit.

Notes:

The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.

Elimination:

Check the oil level sensor, electrical connectors and wiring.

EMS 9497

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coil Electromagnetic Clutch Air Conditioning Compressor

Fault:

Break of the electric circuit of the electromagnetic clutch of the air conditioning compressor clutch.

The reasons:

Malfunction in electrical wiring or electrical circuit connectors.

Notes:

A fault code can be generated when the air conditioning system is activated. The A / C compressor cannot be turned on while the fault is active.

Elimination:

Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.

EMS 9504

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coil Electromagnetic Clutch Air Conditioning Compressor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

A short to ground in the power supply wiring of the electromagnetic clutch of the air conditioning compressor clutch.

Notes:

A fault code can be generated when the air conditioning system is activated. The A / C compressor cannot be turned on while the fault is active.

Elimination:

Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.

EMS 9505

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coil Electromagnetic Clutch Air Conditioning Compressor

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Short to battery + in the electrical circuit of the winding of the electromagnetic clutch of the air conditioning compressor.

Notes:

It is not possible to control the winding of the electromagnetic clutch of the air conditioning system compressor until the fault is rectified.

The air conditioning compressor may start unexpectedly.

Elimination:

Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.

EMS 9558

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant level sensor.

Fault:

The voltage in the coolant level sensor circuit was too high.

The reasons:

Short circuit to + battery or open circuit.

Notes:

No description

Elimination:

Check electrical wiring and connectors.

EMS 9560

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant level sensor.

Fault:

The voltage in the coolant level sensor electrical circuit was too low.

The reasons:

Short to ground.

Notes:

No description

Elimination:

Check electrical wiring and connectors.

EMS 9568

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant level

Fault:

The coolant level sensor sent a signal to the engine control unit indicating that the coolant level is too low.

The reasons:

Coolant level too low.

Notes:

No description

Elimination:

Check the coolant level.

EMS 9592

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, speed sensor T120

Fault:

Induced sensor voltage too low.

The reasons:

An open circuit. The sensor is in the wrong position.

Notes:

Engine power is reduced to protect the turbocharger from damage. The turbocharger’s annular nozzle moves to a safe position.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9593

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, speed sensor 1

Fault:

Malfunction in the turbine speed sensor.

The reasons:

The malfunction may be due to the fact that several different faults occur simultaneously in the element.

Notes:

Engine power is reduced to protect the turbocharger from damage.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9600

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, speed sensor 1

Fault:

The voltage in the circuit was below acceptable levels.

The reasons:

Short to ground.

Notes:

Engine power is reduced to protect the turbocharger from damage.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9601

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, speed sensor 1

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short to battery +.

Notes:

Engine power is reduced to protect the turbocharger from damage.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9728

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Power supply

Fault:

The voltage of one of the sensors having a common power is higher than the set value.

The reasons:

Short circuit on the “+” battery of one of the sensors with common power. It can be one of the following sensors: Oil pressure sensor, mass flow sensor or fuel temperature sensor.

Notes:

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Elimination:

Check sensors, connectors and wiring.

EMS 9729

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Power supply

Fault:

The voltage of one of the sensors having a common power is below the set value.

The reasons:

A short to ground on one of the sensors with common power. It can be one of the following sensors: Oil pressure sensor, mass flow sensor or fuel temperature sensor.

Notes:

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Elimination:

Check sensors, connectors and wiring.

EMS 9729

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coolant pump.

Fault:

Malfunction of the coolant pump.

The reasons:

The cause of the malfunction is an element having several faults at the same time.

Notes:

The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 9730

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coolant pump.

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Possible reasons:

  • Short circuit to + battery ground wire; open circuit or short to ground in the power wire of the coolant pump electrical circuit.
  • Malfunction in the fan speed sensor circuit.

Notes:

The coolant pump is running until it is turned off.

The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

Elimination:

  1. Check fan speed sensor and coolant pump with connectors and electrical wiring.
  2. Measure the resistance of the coolant pump electrical circuit.

EMS 9731

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200

Title:

Coolant pump.

Fault:

The voltage in the circuit was outside the limits.

The reasons:

Possible reasons:

  • Short to power + battery wires in the electrical circuit of the coolant pump.
  • Malfunction in the fan speed sensor circuit.

Notes:

The coolant pump is not activated and the cooling efficiency remains low as long as the fault is present.

The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

Elimination:

  1. Check fan speed sensor and coolant pump with connectors and electrical wiring.
  2. Measure the resistance of the coolant pump electrical circuit.

EMS 9984

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Power supply

Fault:

The voltage of one of the sensors having a common power is higher than the set value.

The reasons:

One of the common-power sensors has a short to battery. This may be one of the following sensors: Coolant temperature sensor, charge air temperature sensor, charge air pressure sensor, fuel line pressure sensor, or fan speed sensor.

Notes:

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Elimination:

Check sensors, connectors and wiring.

EMS 9985

Blocks:

2098557, 2098556, 2110163, 2110160

Title:

Power supply

Fault:

The voltage of one of the sensors having a common power is below the set value.

The reasons:

One of the sensors with a common power supply has a short circuit between the power supply circuit of the sensor and the mass point of the sensor. This may be one of the following sensors: Coolant temperature sensor, charge air temperature sensor, charge air pressure sensor, fuel line pressure sensor, or fan speed sensor.

Notes:

With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).

Elimination:

Check sensors, connectors and wiring.

EMS 10240

Blocks:

2098557, 2098556

Title:

Additional analog input

Fault:

The signal level in the circuit exceeded the permissible level.

The reasons:

Malfunction in the coolant temperature sensor circuit, charge air pressure sensor, charge air temperature sensor, or an additional analog input circuit.

Notes:

It is not possible to use a throttle control unit connected to an additional analog input.

The coolant temperature sensor, charge air pressure sensor, charge air temperature sensor and an additional analog input have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

Elimination:

  1. Check the throttle control unit and voltage levels connected to the analog input. Voltage levels must be greater than the values ​​specified in the engine control unit.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor and the element connected to the auxiliary analog input, and connectors and electrical wires in the electrical circuit.

EMS 10241

Blocks:

2098557, 2098556

Title:

Additional analog input

Fault:

The signal level in the circuit is below the allowed limit.

The reasons:

Possible reasons:

  • Short circuit of additional analog input circuit.
  • Malfunction in the electrical circuit of the coolant temperature sensor, charge air pressure sensor or charge air temperature sensor.

Notes:

The coolant temperature sensor, charge air pressure sensor, charge air temperature sensor and an additional analog input have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.

It is not possible to use a throttle control unit connected to an additional analog input.

Elimination:

  1. Check the throttle control unit and voltage levels connected to the analog input. Voltage levels must not be less than the values ​​specified in the engine control unit.
  2. Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor and the element connected to the auxiliary analog input, and connectors and electrical wires in the electrical circuit.

EMS 10242

Blocks:

2098557, 2098556

Title:

Control block

Fault:

The control unit was unable to convert the signals from the additional analog input.

The reasons:

Internal malfunction in the control unit.

Notes:

It is not possible to use a throttle control unit connected to an additional analog input.

Elimination:

Clear the DTC memory and start the engine. If this DTC is generated again, replace the control unit.

EMS 10496

Blocks:

2110163, 2110160

Title:

Mass flow meter

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

  • An electrical break in the mass flow sensor circuit.
  • Malfunction of the electrical circuit of the fuel temperature sensor or electrical circuit of the oil pressure sensor.

Notes:

An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

The engine will work with exhaust gas recirculation, but without feedback on the mass flow sensor signal. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is disabled.

Elimination:

Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.

EMS 10497

Blocks:

2110163, 2110160

Title:

Mass flow meter

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

  • Short circuit in the electrical circuit of the mass flow sensor.
  • Malfunction of the electrical circuit of the fuel temperature sensor or electrical circuit of the oil pressure sensor.

Notes:

An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.

The engine will work with exhaust gas recirculation, but without feedback on the mass flow sensor signal. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Calibration of the mass flow sensor is disabled.

Elimination:

Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.

EMS 10498

Blocks:

2110163, 2110160

Title:

Control block

Fault:

The control unit could not convert the signal from the sensor.

The reasons:

Internal malfunction in the control unit.

Notes:

The engine will work with exhaust gas recirculation, but without feedback on the signal from the mass flow sensor of the recycled exhaust gas. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values ​​to set the position of the EGR valve. Mass flow meter calibration disabled.

Elimination:

Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.

EMS 11175

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Information code for NOx control – cannot be deleted

Fault:

Empty reagent tank. This DTC is generated when there is one or more faults in the NOx control system.

This DTC is used by authorized agencies to see if the NOx control system has been activated, and is not used in car repairs.

The reasons:

Review other active fault codes for NOx control.

Notes:

When the engine management system detects a fault, the NOx warning lamp comes on.

If the DTC remains active for 36 hours, engine power is reduced by 40%.

DTC cannot be cleared. It disappears if it remains inactive for 400 days or 9600 hours.

Elimination:

  1. If an active DTC is present: Perform the necessary actions to eliminate the causes of other active DTCs.
  2. If the DTC is inactive: No action should be taken.