Scania EMS Fault Codes List: 11-642

By | 25/11/2018

EMS Scania Engine Control Unit Fault codes list (DTCs) 11-642

See also: Scania trucks service repair manuals PDF

Scania EMS Fault Codes List

EMS 11

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key, and then turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 12

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Remarks:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key, and then turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 13

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Remarks:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 14

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 15

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 21

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 22

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 22

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Camshaft sensor

Fault:

The crankshaft sensor registers the rotation of the engine, but the camshaft sensor does not generate pulses.

The reasons:

  • The sensor is located at the wrong distance from the camshaft gear.
  • The sensor is connected to the wrong pin in the engine control unit connector.
  • There is a fault in the sensor or its wiring / connectors.

Remarks:

The engine management system uses a backup strategy to continue tracking the phases of the engine.

Elimination:

  1. Clear trouble codes. If this DTC is re-generated, follow these steps:
  2. Ensure the sensor is at the correct distance from the camshaft gear.
  3. Make sure the sensor is connected to the correct pin in the engine control unit connector (try changing the polarity).

Replace sensor.

EMS 23

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Remarks:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 40

Blocks:

2098557, 2098556, 2110163, 2110160, 2110164, 2110165, 2110166, 2110162, 2110116

Title:

Control block

Fault:

Incorrect or unreliable data.

The reasons:

Internal malfunction in the control unit.

Notes:

While there is a fault, the car cannot start moving.

Elimination:

Erase the trouble codes from the memory, then turn off the ignition with the ignition key and turn it on again. Does the trouble code remain active? In this case, replace the control unit.

EMS 51

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, bypass valve

Fault:

Incorrect voltage in the solenoid valve circuit controlling the bypass valve.

The reasons:

The bypass valve of the turbocharger is controlled by a solenoid valve (V109), which receives signals from the engine management system. An open or short in the electrical circuit of the solenoid valve.

Notes:

The charge pressure is not adjusted correctly, danger of overload.

Elimination:

Check the solenoid valve, wiring and electrical connectors.

EMS 52

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, bypass valve

Fault:

Incorrect voltage in the solenoid valve circuit controlling the bypass valve.

The reasons:

The bypass valve of the turbocharger is controlled by a solenoid valve (V109), which receives signals from the engine management system. A short to ground in the electrical circuit of the solenoid valve.

Remarks:

The boost pressure is not adjusted correctly, this can lead to poor handling.

Elimination:

Check the solenoid valve, wiring and electrical connectors.

EMS 53

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, bypass valve

Fault:

Incorrect voltage in the solenoid valve circuit controlling the bypass valve.

The reasons:

The bypass valve of the turbocharger is controlled by a solenoid valve (V109), which receives signals from the engine management system. A short to power in the electrical circuit of the solenoid valve.

Notes:

The charge pressure is not adjusted correctly, danger of overload.

Elimination:

Check the solenoid valve, wiring and electrical connectors.

EMS 55

Blocks:

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

Title:

Lambda sensor

Fault:

The voltage of the Lambda sensor heating system is too low.

The reasons:

Short to ground.

Notes:

Torque is reduced to protect the engine.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

EMS 56

Blocks:

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

Title:

Lambda sensor

Fault:

Lambda sensor heating system voltage too high.

The reasons:

Short to battery +.

Notes:

Torque is reduced to protect the engine.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

EMS 57

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Turbocharger, bypass valve

Fault:

Incorrect voltage in the solenoid valve circuit controlling the bypass valve.

The reasons:

The bypass valve of the turbocharger is controlled by a solenoid valve (V109), which receives signals from the engine management system. An open or short in the electrical circuit of the solenoid valve.

Remarks:

The charge pressure is not adjusted correctly, danger of overload.

Elimination:

Check the solenoid valve, wiring and electrical connectors.

EMS 105

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Pressure meter

Fault:

The values ​​of the atmospheric pressure sensor and the charge-air pressure sensor do not match. The atmospheric pressure sensor indicates a value higher than the value of the charge air pressure sensor.

The reasons:

Malfunction of one or both sensors or sensors blocked by dirt.

Fault in the wiring harness or connectors.

Notes:

No description

Elimination:

  1. Compare the values ​​from all three pressure sensors: atmospheric pressure, charge air pressure and exhaust pressure.
  2. Make sure the engine is off, but the power is on. All three sensors should indicate the pressure corresponding to the current atmospheric pressure.
  3. Check wiring harness and sensor connectors.
  4. Replace the sensor or sensors deviating from the actual pressure.
  5. To acknowledge the validity of the DTC after the action has been completed, make sure that the engine is warm, turn on the power with the ignition key, wait 30 seconds and then start the engine. The invalidation of the fault code must be executed immediately.

EMS 107

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Pressure meter

Fault:

The values ​​of the charge air pressure sensor and the pressure sensor in the exhaust system do not match. The charge air pressure sensor indicates a value higher than the value of the pressure sensor in the exhaust system.

The reasons:

  • Malfunction of one or both sensors or sensors blocked by dirt.
  • Fault in the wiring harness or connectors.

Notes:

No description

Elimination:

  1. Compare the values ​​from all three pressure sensors: atmospheric pressure, charge air pressure and exhaust pressure.
  2. Make sure the engine is off, but the power is on. All three sensors should indicate the pressure corresponding to the current atmospheric pressure.
  3. Check wiring harness and sensor connectors.
  4. Replace the sensor or sensors deviating from the actual pressure.
  5. To acknowledge the validity of the DTC after the action has been completed, make sure that the engine is warm, turn on the power with the ignition key, wait 30 seconds and then start the engine. The invalidation of the fault code must be executed immediately.

EMS 112

Blocks:

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

Title:

Outside temperature sensor or temperature sensor before air intake to the impeller of the turbocharger

Fault:

The outside temperature sensor indicates a too high value or the temperature sensor before intake of air to the impeller of the turbocharger shows a too low value.

The reasons:

Possible reasons:

  • outside temperature sensor or temperature sensor is faulty before air intake to the impeller of the turbocharger
  • cracks in the intake manifold

Remarks:

During this test, when the vehicle is moving, a comparison is made between the temperature reading from the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger. The check can be performed faster if the car is moving at a higher speed.

The EGR system turns off when the measured outside temperature is too low. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. Check the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger.
  2. Ensure that the pipeline between the turbocharger and the air filter is intact and not leaking.
  3. Clear the DTC by turning off the key with the key and wait 15 seconds. Start the engine and allow the car to move for more than 10 minutes at a speed above 40 km / h.

EMS 113

Blocks:

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

Title:

Outdoor temperature sensor

Fault:

The outside temperature sensor indicates a too high value or the temperature sensor before intake of air to the impeller of the turbocharger shows a too low value.

The reasons:

Possible reasons:

outside temperature sensor or temperature sensor is faulty before air intake to the impeller of the turbocharger

cracks in the intake manifold

Remarks:

During this test, when the vehicle is moving, a comparison is made between the temperature reading from the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger. The check can be performed faster if the car is moving at a higher speed.

The EGR system turns off when the measured outside temperature is too low. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. Check the outside temperature sensor and the temperature sensor before air intake to the impeller of the turbocharger.
  2. Ensure that the pipeline between the turbocharger and the air filter is intact and not leaking.
  3. Clear the DTC by turning off the key with the key and wait 15 seconds. Start the engine and allow the car to move for more than 10 minutes at a speed above 40 km / h.

EMS 113

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Outdoor temperature

Fault:

The charge air temperature is noticeably higher than the outdoor temperature, while their values ​​should be the same.

The reasons:

Possible reasons:

The temperature shown by the outside temperature sensor is too low, or the temperature shown by the charge air temperature sensor is too high.

There is a deterioration in the cooling efficiency provided by the charge-air cooler.

Notes:

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 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 the electrical components, electrical connectors and wiring.
  2. Check for any visible faults that cause the charge air cooler to degrade.
  3. 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.
  4. The conditions under which the control unit checks:
  5. The temperature of the charge air above 3 ° C.
  6. The difference between the charge air temperature and the outside temperature must be less than 10 ° C for 10 seconds.
  7. The control unit must perform the test in four consecutive cycles. This means that the power must be turned off and on four times using the ignition key at 10-second intervals.
  8. You can go to the fault code monitoring function and view the fault code. 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.
  9. 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 135

Blocks:

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

Title:

Fuel pressure in the pressure accumulator

Fault:

The fuel pressure in the fuel rail is lower than requested.

The reasons:

Possible reasons:

Leakage.

Malfunction in high pressure pump, fuel metering inlet valve or fuel pressure sensor.

Insufficient fuel supply from the low pressure side.

Notes:

Black smoke may be emitted from the engine.

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

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

Elimination:

  1. If there are other trouble codes for any other injector, perform troubleshooting for the injectors.
  2. If a trouble code 0094 has been generated for a small leak on the high pressure side, the cause should be corrected first. Perform low-side troubleshooting, following La’s “troubleshooting tree” in document 03: 14-01, edition 2.
  3. Check supply pressure, fuel metering inlet valve, high pressure pump, booster pump, and check for leaks.
  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 135

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Pressure in the engine power system

Fault:

The pressure in the fuel line is well below the set value.

The reasons:

Possible causes of failure:

One of the two relief valves opens at too low a pressure.

The fuel shut-off solenoid valve remains closed.

The fuel filter is clogged.

Air in the fuel or lack of fuel in the tank.

Malfunctioning booster pump.

Significant fuel leak from the system.

Notes:

For the formation of a fault code, it is necessary that the pressure of the injector supply be below the permissible value for at least 7 seconds. This time period was set to avoid writing code due to short-term pressure fluctuations not caused by functional deviation.

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

With this fault, the maximum torque of the engine is reduced by approximately 40% while the fault continues to be present.

A fault code can self-destruct if its existence is regarded as temporary. After a certain period of time, when the problem does not occur, the fault code will be erased.

A malfunction code 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 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 fuel in the tank and bleed the fuel system to remove air from it.
  2. Check the opening pressure of both relief valves.
  3. Check the position of the fuel shut-off solenoid valve.
  4. Check the condition of the fuel filter.
  5. Check the fuel priming pump.
  6. Check the tightness of the fuel system.
  7. If a malfunction code is generated when the engine is running by inertia (for example, when the vehicle is going to descend with the accelerator pedal fully released), to facilitate troubleshooting, you can use the “Stored operational data” option on the “Pressure” tab supply “(” Supply Pressure “). If the supply pressure deviation over a certain time interval is 1.0 bar or more, the fuel filter may be clogged. If there is only a slight deviation in the supply pressure, this may mean that the bypass valve is stuck.
  8. To make sure the problem is resolved.
  9. Turn on the ignition and wait at least 15 seconds. If the fault is resolved, the fault code becomes inactive. Clear the fault code.
  10. 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 136

Blocks:

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

Title:

Fuel rail pressure

Fault:

The fuel pressure in the fuel rail is higher than the requested.

The reasons:

  • Increased flow on the low pressure side.
  • Possible reasons:
  • Malfunction of high pressure pump, fuel metering inlet valve or fuel pressure sensor.
  • Fuel metering inlet valve sticking or leaking.
  • Diffuser sealing rings in high pressure pump damaged.

Notes:

Abnormally high noise generated during combustion or detonation may be present.

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

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

Elimination:

  1. If there is any trouble code related to the fuel metering inlet valve, first replace it.
  2. Then check the supply pressure as described in L6 of document 03: 14-01, edition 2. Continue diagnostics on the “troubleshooting tree” Lc if the pressure is too high. Otherwise, replace the fuel metering inlet valve.
  3. Check supply pressure, fuel metering inlet valve, high pressure pump and check for leaks.
  4. Check diffuser o-rings in high pressure pump.
  5. 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 136

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Pressure in the fuel supply system

Fault:

The pressure in the fuel line significantly exceeds the set value.

The reasons:

The probable cause of the malfunction is a defect in the bypass valve. It is also possible that the drain line is clogged.

Notes:

A fault code will be recorded only if the pressure in the fuel line exceeds the set value for 7 seconds or a longer time interval. This time period was set to avoid writing code due to short-term pressure fluctuations not caused by functional deviation.

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 30% while the fault code is active (confirmed). As a result of this malfunction, uneven engine operation and increased smoke can occur.

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Check the bypass valve and fuel return line.

EMS 148

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Fuel pressure in the accumulator

Fault:

Small leakage in the high pressure section of the fuel system.

The fuel pressure in the ramp drops even in spite of the fact that the fuel metering inlet valve is completely closed and the fuel is not consumed.

The reasons:

Small leakage in the high pressure section of the fuel system.

Notes:

Rail pressure drops as the engine brakes, when the fuel metering inlet valve must be closed and the fuel is not consumed.

Elimination:

Search for external leaks in high pressure areas in the fuel system.

EMS 148

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Fuel pressure in the pressure accumulator

Fault:

Low leakage in the high pressure circuit of the fuel system.

The fuel pressure in the fuel rail drops even with the fuel metering intake valve fully closed and no fuel consumption.

The reasons:

Low leakage in the high pressure circuit of the fuel system.

Notes:

The fuel rail pressure drops during engine braking when the fuel metering inlet valve must be closed and no fuel should be consumed.

Elimination:

  1. Check for external fuel leaks from the high pressure circuit of the fuel system.
  2. If there are no visible external leaks, continue searching for leaks in the following order:
  3. Measure the return fuel pressure as described in Section H2 of Document 03: 14-01, Edition 2.
  4. Check the integrity of the safety valve as described in Section H3 of Document 03: 14-01, Edition 2.
  5. Replace the cylinder head of the high-pressure fuel pump as described in Section H9 of Document 03: 14-01, Edition 2.

EMS 149

Blocks:

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

Title:

Intake manifold air temperature sensor

Fault:

The reading of the charge air temperature sensor is constant, despite the change in operating conditions.

The reasons:

The reading of the charge air temperature sensor was fixed at the same level.

Notes:

This may affect engine power. There is the danger of black smoke.

Elimination:

  1. Take the charge temperature sensor reading. When placing the load on the engine, the temperature should increase.
  2. Check the connectors and wiring of the sensor circuit. If no fault is found, replace the charge air temperature sensor.

EMS 150

Blocks:

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

Title:

Intake manifold air temperature sensor

Fault:

Malfunction of the temperature sensor charge air

The reasons:

There may be a malfunction in the charge air temperature sensor or its wiring.

Notes:

This may affect engine power. There is the danger of black smoke.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 151

Blocks:

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

Title:

Intake manifold air temperature sensor

Fault:

Faulty charge air temperature sensor.

The reasons:

Short to ground.

Notes:

This may affect engine power. There is the danger of black smoke.

Elimination:

  1. Check the connectors and wiring of the charge air temperature sensor.
  2. Measure the resistance of the intake air temperature sensor. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.
  3. Measure the sensor supply voltage. With the sensor disconnected, the voltage should be approximately 5 V.

EMS 152

Blocks:

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

Title:

Intake manifold air temperature sensor

Fault:

Faulty charge air temperature sensor.

The reasons:

Short to battery + (U30) or open circuit.

Notes:

This may affect engine power. There is the danger of black smoke.

Elimination:

  1. Check the connectors and wiring of the charge air temperature sensor.
  2. Measure the sensor resistance. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

EMS 256

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Mass sensor air inlet T126

Fault:

The readings of the mass flow sensor remain unchanged, although the operating conditions indicate the opposite.

The reasons:

The mass air flow sensor may be faulty.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Replace the air flow sensor.

EMS 256

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Intake air flow sensor

Fault:

The value from the mass flow sensor does not change, although operating conditions indicate the opposite.

The reasons:

The mass air flow sensor may be faulty.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Replace the air flow sensor.
  3. Be sure to perform the basic adjustment of the mass flow sensor adaptation values ​​after replacing the mass flow sensor or after repairing a leak in the engine intake system.
  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 257

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Intake air flow sensor

Fault:

Malfunctioning air flow sensor.

The reasons:

The mass flow sensor is not satisfactory.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. If there are additional fault codes for the mass flow sensor T126, first correct the malfunctions associated with them.
  2. Diagnose the mass flow sensor and its connectors for electrical problems.
  3. Check for leaks in the EGR system or in the charge-air system.
  4. Check backpressure sensor in exhaust system T125, charge pressure sensor T122 or charge temperature sensor T121.
  5. 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.
  6. Be sure to perform the basic adjustment of the mass flow sensor adaptation values ​​after replacing the mass flow sensor or after repairing a leak in the engine intake system.

EMS 257

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Mass sensor air inlet T126

Fault:

Malfunctioning air flow sensor.

The reasons:

The mass flow sensor is not satisfactory.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

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

Elimination:

  1. If there are additional DTCs for the mass flow sensor T126, first run these DTCs.
  2. Troubleshoot electrical problems with the mass flow sensor and connectors.
  3. Check for leaks in the EGR system or in the charge-air system.
  4. Check back pressure sensor in exhaust system T125, charge air pressure sensor T122 and charge air temperature sensor T121.

EMS 258

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Intake air flow sensor

Fault:

The voltage in the circuit was below acceptable levels.

The reasons:

Short to ground or open circuit.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The engine control unit uses the calculated value for the mass air flow sensor, and the engine power is reduced.

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

Elimination:

  1. Check the electrical components, electrical connectors and wiring.
  2. Be sure to perform the basic adjustment of the mass flow sensor adaptation values ​​after replacing the mass flow sensor or after repairing a leak in the engine intake system.
  3. 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 258

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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:

The mass flow sensor, oil pressure sensor and fuel temperature 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.

The engine will work with EGR, but without feedback on the signal of 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control system

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:

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

Continue as follows to ensure that the problem is resolved:

There should be no active DTCs in relation to applying voltage to the sensors or battery voltage.

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 258

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Mass sensor air inlet T126

Fault:

The voltage in the circuit was below acceptable levels.

The reasons:

Short to ground or open circuit.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The engine control unit uses the calculated value for the mass air flow sensor, and the engine power is reduced.

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

Elimination:

Check the electrical components, electrical connectors and wiring.

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.

Be sure to perform a basic adaptation of the mass flow sensor adaptation after replacing the mass flow sensor or after repairing a leak in the engine intake system.

EMS 259

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Mass sensor air inlet T126

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short to battery +.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The engine control unit uses the calculated value for the mass air flow sensor, and the engine power is reduced.

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

Elimination:

Check the electrical components, electrical connectors and wiring.

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.

Be sure to perform a basic adaptation of the mass flow sensor adaptation after replacing the mass flow sensor or after repairing a leak in the engine intake system.

EMS 259

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Intake air flow sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short to battery +.

Notes:

The engine control unit switches off the exhaust gas recirculation system. In accordance with current legal requirements, engine power is reduced on vehicles that are equipped with NOx exhaust control.

The engine control unit uses the calculated value for the mass air flow sensor, and the engine power is reduced.

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

Elimination:

Check the electrical components, electrical connectors and wiring.

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.

Be sure to perform the basic adjustment of the mass flow sensor adaptation values ​​after replacing the mass flow sensor or after repairing a leak in the engine intake system.

EMS 259

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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:

The mass flow sensor, oil pressure sensor and fuel temperature 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.

The engine will work with EGR, but without feedback on the signal of 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.

Cars with NOx control system

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:

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

Continue as follows to ensure that the problem is resolved:

There should be no active DTCs in relation to applying voltage to the sensors or battery voltage.

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 261

Blocks:

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

Title:

Pressure sensor charge air.

Fault:

The charge air pressure sensor generates a value outside the acceptable range.

The reasons:

The charge air pressure sensor produces a too high or too low reading compared to the readings from other pressure sensors, as there is a fault in the sensor or defects in the electrical connectors or wiring.

Notes:

A malfunction may result in an incorrect amount of fuel and a decrease in engine power.

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

Elimination:

When the engine is off and the ignition key is in position U15:

Compare the value of the charge air pressure sensor with the values ​​of the atmospheric pressure sensor and the exhaust back pressure sensor. All sensors must give the same readings.

Clear the fault code. To do this, first warm up the engine. Switch off the ignition. The DTC clears within 30 seconds.

EMS 262

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Pressure sensor charge air.

Fault:

When the power is turned on, the value of the charge air pressure sensor is not equal to the atmospheric pressure and / or exhaust back pressure.

The reasons:

Possible reasons:

The charge air pressure sensor generates an incorrect value.

Malfunctioning electrical connector or wiring in the circuit.

Notes:

The engine does not receive the correct amount of fuel. Power is reduced to protect the engine.

Elimination:

Troubleshoot by comparing the charge-air temperature sensor with the atmospheric pressure sensor and the backpressure sensor in the exhaust system. All sensors must display the same value when the engine is off, but the power is on. Replace the faulty sensor.

To make sure that the problem is resolved, warm up and turn off the engine. Turn on the power with the ignition key, wait 30 seconds and then start the engine. If the fault is resolved, the fault code immediately becomes inactive.

EMS 262

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Charge air pressure sensor

Fault:

In idle mode, the value of the charge air pressure sensor is not equal to the atmospheric pressure and / or exhaust back pressure.

The reasons:

The charge air pressure sensor generates an incorrect value.

Malfunctioning electrical connector or wiring in the circuit.

Notes:

The engine does not receive the correct amount of fuel. Power is reduced to protect the engine.

Elimination:

Troubleshoot by comparing the charge-air temperature sensor with the atmospheric pressure sensor and the backpressure sensor in the exhaust system. All sensors must give the same readings.

When the engine is off and the ignition key is in position U15:

Troubleshoot.

First erase the DTC by allowing the engine to run until it reaches operating temperature. Switch off the ignition. The DTC clears within 30 seconds.

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 263

Blocks:

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

Title:

Pressure sensor charge air.

Fault:

The voltage in the electrical circuit was too low.

The reasons:

Short to ground or open 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 charge air pressure sensor as well as the electrical connectors and wiring.

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 263

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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. This fault may be due to clogging of the 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 charge air pressure sensor, the coolant temperature 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 40% 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

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

Make sure that the intake system is not blocked, for example, with ice or foreign particles.

Also make sure that the connecting pipes are intact and not compressed.

Continue as follows to ensure that the problem is resolved:

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 264

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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 charge air pressure sensor, the coolant temperature 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 40% 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

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

Continue as follows to ensure that the problem is resolved:

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 264

Blocks:

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

Title:

Pressure sensor charge air.

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short to battery or lost ground.

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.

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 273

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Air intake temperature sensor

Fault:

Defective air intake temperature sensor. The voltage in the electrical circuit was above normal.

The reasons:

Short to battery + or an open circuit in the air intake temperature sensor circuit.

Notes:

This may affect engine power.

Gas engines have a torque limit.

Elimination:

Check the electrical components, electrical connectors and wiring.

Troubleshooting for air intake temperature sensor.

EMS 273

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Charge air temperature

Fault:

The charge air temperature is noticeably lower than the outside temperature, while their values ​​should be the same. The signal from the charge-air temperature sensor has an unreliable value.

The reasons:

Possible reasons:

The temperature shown by the outside temperature sensor is too high.

The temperature indicated by the charge-air temperature sensor is too low.

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

Notes:

The charge air temperature sensor, coolant temperature sensor, charge air pressure sensor, fuel line pressure sensor and 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.

A malfunction code 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. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

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

The conditions under which the control unit checks:

The temperature of the charge air above 3 ° C.

The difference between the charge air temperature and the outside temperature must be less than 10 ° C for 10 seconds.

The control unit must perform the test in four consecutive cycles. This means that the power must be turned off and on four times using the ignition key at 10-second intervals.

You can go to the fault code monitoring function and view the fault code. 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.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

EMS 273

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

T121 inflatable air temperature sensor or T126 air intake temperature sensor

Fault:

For engine control units manufactured before February 2009:

Malfunction of the temperature sensor charge air T121.

For engine control units manufactured after February 2009:

Malfunction of the temperature sensor air intake T126. The sensor consists of the same elements as the intake air flow sensor. The voltage in the electrical circuit was above normal.

The reasons:

For engine control units manufactured before February 2009:

There may be a malfunction in the charge air temperature sensor or its wiring.

For engine control units manufactured after February 2009:

Short to battery + or an open circuit in the air intake temperature sensor circuit.

Notes:

For engine control units manufactured before February 2009:

This may affect engine power. There is the danger of black smoke.

For engine control units manufactured after February 2009:

This may affect engine power.

Elimination:

For engine control units manufactured before February 2009:

Check the elements, connector and wiring of the electrical circuit of the charge air temperature sensor T121.

For engine control units manufactured after February 2009:

Check the components, connector and electrical wiring for the air intake temperature sensor T121.

Troubleshooting for air intake temperature sensor.

EMS 274

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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 charge air temperature sensor, coolant temperature sensor, charge air pressure sensor, fuel line pressure sensor and 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.

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

Continue as follows to ensure that the problem is resolved:

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 274

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Air intake temperature sensor

Fault:

Voltage in the air intake temperature sensor circuit is below acceptable level.

The reasons:

Short to ground.

Notes:

This may affect engine power.

Elimination:

Check the intake air temperature sensor and its connectors and wiring.

Measure the resistance of the air intake temperature sensor. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the supply voltage of the air intake temperature sensor. With the sensor disconnected, the voltage should be approximately 5 V.

EMS 274

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Charge air temperature sensor T121 or air intake temperature sensor T126

Fault:

For engine control units manufactured after February 2009:

Malfunction of the temperature sensor charge air T121.

For engine control units manufactured before February 2009:

Malfunction of the temperature sensor air intake T126. The sensor consists of the same elements as the intake air flow sensor. The voltage in the circuit was below acceptable levels.

The reasons:

Short circuit to ground

Notes:

For engine control units manufactured before February 2009:

This may affect engine power. There is the danger of black smoke.

For engine control units manufactured after February 2009:

This may affect engine power.

Elimination:

For engine control units manufactured before February 2009:

Check the charge air temperature sensor T121 and its connectors and wiring.

Measure the resistance of the intake air temperature sensor. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the sensor supply voltage. With the sensor disconnected, the voltage should be approximately 5 V.

For engine control units manufactured after February 2009:

Check the air intake temperature sensor T126 and its connectors and wiring.

Measure the sensor resistance. The electrical resistance should be approximately 2.5 kΩ at 20 ° C.

Measure the sensor supply voltage. With the sensor disconnected, the voltage should be approximately 5 V.

EMS 275

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Charge air temperature sensor T121 or air intake temperature sensor T126

Fault:

For engine control units manufactured before February 2009:

Malfunction of the temperature sensor charge air T121.

For engine control units manufactured after February 2009:

Malfunction of the temperature sensor air intake T126. The sensor consists of the same elements as the intake air flow sensor. The voltage in the electrical circuit was above normal.

The reasons:

Short to battery + (U30) or open circuit.

Notes:

For engine control units manufactured before February 2009:

This can affect engine power and there is a danger of black smoke.

For engine control units manufactured after February 2009:

This may affect engine power.

Elimination:

Check the electrical components, electrical connectors and wiring.

Ensure that the sensor resistance is approximately 2.5 kΩ at 20 ° C.

EMS 275

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Air intake temperature sensor

Fault:

The voltage in the electrical circuit of the air intake temperature sensor was too high.

The reasons:

Short circuit to + battery or open circuit.

Notes:

This may affect engine power.

Elimination:

Check the electrical components, electrical connectors and wiring.

Ensure that the sensor resistance is approximately 2.5 kΩ at 20 ° C.

EMS 275

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.

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

Continue as follows to ensure that the problem is resolved:

Start the engine and let it run at idle for at least 15 seconds.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 277

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant temperature sensor

Fault:

The value of the coolant temperature does not change even though the engine is working with a high load.

The reasons:

The signal from the coolant temperature sensor does not change.

Notes:

Reduced engine power. The engine control unit reduces torque to protect the engine.

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

Elimination:

Check if the coolant temperature is static.

Check the coolant temperature sensor electrical connectors and wiring.

If necessary, replace the coolant temperature sensor.

To erase the fault code: Ensure the engine is running at medium or high load. If the fault is resolved, the fault code becomes inactive and can be erased.

After generating this DTC, always check the EGR system for invalidating DTCs. This check can be performed using SDP3.

EMS 277

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Coolant temperature sensor

Fault:

The coolant temperature has not changed, although the engine has a large load.

The reasons:

The coolant temperature sensor is locked in one position.

Notes:

Reduced engine power. The engine control unit reduces torque to protect the engine.

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

Elimination:

Check if the coolant temperature is static.

Check the coolant temperature sensor electrical connectors and wiring.

If necessary, replace the coolant temperature sensor.

To erase the fault code: Ensure the engine is running at moderate or heavy load. If the fault is resolved, the fault code becomes inactive and can be erased.

EMS 278

Blocks:

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

Title:

Coolant temperature sensor 1

Fault:

Coolant temperature sensor malfunction.

The reasons:

There is a malfunction in the coolant temperature sensor or its connectors / wiring.

Notes:

Reduced engine power.

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

Elimination:

Check the electrical components, electrical connectors and wiring.

After generating this DTC, always check the EGR system for invalidating DTCs. This check can be performed using SDP3.

EMS 279

Blocks:

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

Title:

Coolant temperature sensor 1

Fault:

The voltage in the circuit was below acceptable levels.

The reasons:

Short to ground.

Notes:

It may be difficult to start a cold engine and uneven idling, because the engine cannot operate the cold start position.

Reduced engine power. Torque is reduced to protect the engine.

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

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 279

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.

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.

Continue as follows to ensure that the problem is resolved:

Switch the ignition on and off with the key.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 280

Blocks:

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

Title:

Coolant temperature sensor 1

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Short circuit to + battery or open circuit.

Notes:

It may be difficult to start a cold engine and uneven idling, because the engine cannot operate the cold start position.

Reduced engine power. In a vehicle with an NOx monitoring system, it is necessary to invalidate it before removing the DTC.

Elimination:

Check the electrical components, electrical connectors and wiring.

EMS 280

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

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 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.

Malfunction affects vehicle emissions of nitrogen oxides (NOx); on the instrument cluster a warning lamp lights up, warning of a high level of pollutants. Vehicles with a NOx control system also display a text message.

Cars with NOx control system

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:

Make sure that the coolant temperature and the charge air temperature are about the same on a cold engine.

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.

Continue as follows to ensure that the problem is resolved:

Switch the ignition on and off with the key.

If the fault is resolved, the fault code becomes inactive. Clear the fault code.

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 289

Blocks:

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

Title:

Throttle valve

Fault:

Throttle position indication is incorrect.

The reasons:

The measurement is performed using two potentiometers, and their values ​​do not match.

There may be a fault in the power supply circuit of the potentiometers.

Notes:

The engine stops or goes into emergency mode.

Elimination:

Check fuses. Check the element, connectors and wiring. Replace throttle valve.

EMS 290

Blocks:

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

Title:

Throttle valve

Fault:

Throttle position indication is incorrect.

The reasons:

Short to ground or open circuit.

Notes:

Torque is reduced to protect the engine.

Elimination:

Check fuses. Check the element, connectors and wiring. Replace throttle valve.

EMS 291

Blocks:

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

Title:

Throttle valve

Fault:

Throttle position indication is incorrect.

The reasons:

Short to battery +.

Notes:

Torque is reduced to protect the engine.

Elimination:

Check fuses. Check the element, connectors and wiring. Replace throttle valve.

EMS 296

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant temperature

Fault:

Coolant temperature below thermostat control temperature.

The reasons:

The thermostat is stuck in the open position, a malfunction in the coolant temperature sensor.

Notes:

No description

Elimination:

Check thermostat and coolant temperature sensor.

EMS 304

Blocks:

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

Title:

Lambda sensor

Fault:

The value of the Lambda sensor deviates from the specification.

The reasons:

An open circuit in the Lambda sensor circuit.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 305

Blocks:

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

Title:

Lambda sensor

Fault:

The value of the Lambda sensor deviates from the specification.

The reasons:

Short circuit Lambda sensor to ground.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 306

Blocks:

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

Title:

Lambda sensor

Fault:

The value of the Lambda sensor deviates from the specification.

The reasons:

Short circuit of the lambda sensor on the + battery.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 307

Blocks:

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

Title:

Lambda sensor

Fault:

The value of the Lambda sensor deviates from the specification.

The reasons:

Worn lambda sensor.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 310

Blocks:

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

Title:

Lambda diagnostics

Fault:

The value of the Lambda sensor diagnostic function deviates from the specification.

The reasons:

Electrical fault in the Lambda sensor or in its connectors and wiring.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 311

Blocks:

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

Title:

Lambda diagnostics

Fault:

The value of the Lambda sensor diagnostic function deviates from the specification.

The reasons:

Short to ground.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 312

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Lambda diagnostics

Fault:

The value of the Lambda sensor diagnostic function deviates from the specification.

The reasons:

Short circuit of the lambda sensor on the + battery.

Notes:

Engine torque is reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 313

Blocks:

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

Title:

Lambda diagnostics

Fault:

The value of the Lambda sensor diagnostic function deviates from the specification.

The reasons:

Worn lambda sensor or electrical fault.

Notes:

Engine torque can be reduced to protect the engine and the environment.

Elimination:

Check the element, connectors and wiring. Replace lambda sensor.

After completing the action, start the engine and let it run at a speed of at least 1000 rpm to remove the malfunction code.

EMS 361

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Gas mixture

Fault:

It is impossible to maintain the correct composition of the gas mixture.

Adaptation values ​​of the gas mixture reached the upper or lower limit.

The reasons:

Air failure – too little air enters the cylinders. There may be a leak in the intake manifold, there may be a problem in the gas mixing system or a malfunction of the nozzle.

Notes:

Fault condition can be compensated to some extent by lambda control. There is a risk of misfire.

Elimination:

Check for leaks in the air supply system or intake manifold.

Check the nozzles.

Perform diagnostics of the air supply system and the gas mixing system.

EMS 361

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Fuel adaptation

Fault:

The correct fuel mixture was not obtained.

The reasons:

Fuel adaptation has exceeded or dropped below the adaptation limit.

Notes:

There is a risk of misfire.

Elimination:

Ensure that there is no leakage in the entire engine intake system.

Check the system gas supply and injectors.

EMS 386

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Fuel temperature sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Possible reasons:

Short circuit in the fuel temperature sensor circuit.

Malfunction of the electrical circuit of the oil pressure sensor or electrical circuit of the mass flow sensor.

Notes:

The fuel temperature sensor, oil pressure sensor and mass flow 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.

Elimination:

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

EMS 387

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Fuel temperature sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

Possible reasons:

An open in the fuel temperature sensor circuit.

Malfunction of the electrical circuit of the oil pressure sensor or electrical circuit of the mass flow sensor.

Notes:

The fuel temperature sensor, oil pressure sensor and mass flow 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.

Elimination:

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

EMS 396

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Fuel pressure sensor

Fault:

The voltage in the circuit has fallen below acceptable levels.

The reasons:

Short circuit sensor circuit.

A fault can also be caused by a fault in other sensors with a common power supply circuit. If, at the same time, the memory code of the oil pressure sensor is recorded in the memory, a defect in the common internal power supply is possible.

Notes:

The pressure sensor in the fuel line, the coolant temperature sensor, the charge air pressure sensor, the charge air temperature 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.

Elimination:

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

EMS 397

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Fuel pressure sensor

Fault:

The voltage in the circuit exceeded the permissible level.

The reasons:

An open in the sensor circuit.

A fault can also be caused by a fault in other sensors with a common power supply circuit. If, at the same time, the memory code of the oil pressure sensor is recorded in the memory, a defect in the common internal power supply is possible.

Notes:

The pressure sensor in the fuel line, the coolant temperature sensor, the charge air pressure sensor, the charge air temperature 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.

Elimination:

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

EMS 400

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Fuel pressure sensor

Fault:

The value from the fuel pressure sensor does not change, although operating conditions indicate otherwise.

The reasons:

The signal of the fuel pressure sensor does not change.

Notes:

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

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

Elimination:

The pressure in the fuel system reaches a very high value, up to 3000 bar.

Before starting any work, release pressure in the fuel system. When handling the system, it should be assumed that it is under pressure, even if the engine is off.

Wear protective gloves and goggles.

Additional information about the rules of safe handling of the fuel system is given in the service instructions, section “Fuel System XPI”.

EMS 400

Blocks:

9000000, 2089202, 2089201, 2089200

Title:

Fuel pressure sensor

Fault:

The value from the fuel pressure sensor remains unchanged, although operating conditions indicate the opposite.

The reasons:

The signal from the fuel pressure sensor “stuck” at a fixed level.

Notes:

When this DTC is active, engine power is reduced and the EGR system shuts off.

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

Elimination:

Replace the fuel pressure sensor.

EMS 401

Blocks:

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

Title:

Fuel pressure sensor

Fault:

Malfunctioning fuel pressure sensor.

The reasons:

An item may have several different faults.

Notes:

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

Elimination:

The pressure in the fuel system reaches a very high value, up to 3000 bar.

Before starting any work, release pressure in the fuel system. When handling the system, it should be assumed that it is under pressure, even if the engine is off.

Wear protective gloves and goggles.

Additional information about the rules of safe handling of the fuel system is given in the service instructions, section “Fuel System XPI”.

Check the electrical components, electrical connectors and wiring.

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 402

Blocks:

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

Title:

Fuel pressure sensor

Fault:

The voltage in the electrical circuit was below normal.

The reasons:

Short to ground or open circuit.

Notes:

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

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

Elimination:

The pressure in the fuel system reaches a very high value, up to 3000 bar.

Before starting any work, release pressure in the fuel system. When handling the system, it should be assumed that it is under pressure, even if the engine is off.

Wear protective gloves and goggles.

Additional information about the rules of safe handling of the fuel system is given in the service instructions, section “Fuel System XPI”.

Check the electrical components, electrical connectors and wiring.

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 403

Blocks:

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

Title:

Fuel pressure sensor

Fault:

The voltage in the electrical circuit was above normal.

The reasons:

Short to battery or lost contact with ground.

Notes:

As long as this DTC is active, the engine power is limited and the EGR system is deactivated.

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

Elimination:

The pressure in the fuel system reaches a very high value, up to 3000 bar.

Before starting any work, release pressure in the fuel system. When handling the system, it should be assumed that it is under pressure, even if the engine is off.

Wear protective gloves and goggles.

Additional information about the rules of safe handling of the fuel system is given in the service instructions, section “Fuel System XPI”.

Check the electrical components, electrical connectors and wiring.

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 513

Blocks:

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

Title:

Cylinder 1

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably, electrical wiring or solenoid valve of cylinder 1 nozzle is faulty.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 514

Blocks:

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

Title:

Cylinder 2

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably, electrical wiring or solenoid valve of cylinder 2 nozzle is faulty.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 515

Blocks:

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

Title:

Cylinder 3

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably faulty wiring or solenoid valve of the nozzle of the cylinder number 3.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 516

Blocks:

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

Title:

Cylinder 4

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably, electrical wiring or solenoid valve of cylinder 4 nozzle is faulty.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 517

Blocks:

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

Title:

Cylinder 5

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably faulty wiring or solenoid valve of the nozzle of the cylinder number 5.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 518

Blocks:

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

Title:

Cylinder 6

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably faulty wiring or solenoid valve of the nozzle of the cylinder number 6.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 519

Blocks:

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

Title:

Cylinder 7

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably faulty electrical wiring or solenoid valve of the nozzle of the cylinder number 7.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 520

Blocks:

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

Title:

Cylinder 8

Fault:

Identified open circuit in the solenoid valve in the injector nozzles or wiring.

The reasons:

Probably, electrical wiring or solenoid valve of cylinder 8 nozzle is faulty.

Notes:

Fault occurs only when the engine is running. The control unit tries to constantly use the nozzles, regardless of the presence of faults. Engine power varies to varying degrees depending on how many injectors are faulty.

Elimination:

Disconnect the electrical wiring from the control unit and the solenoid valve on the faulty injector.

Measure the resistance of the solenoid valve.

Check the wiring pin connections to the control unit and the braid wiring in the cylinder head.

Measure the resistance between the two free ends of the positive and negative wires, respectively.

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 535

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Coolant temperature

Fault:

Engine coolant temperature too high.

The reasons:

Possible causes are a malfunction in the coolant pump or temperature sensor.

Notes:

No description

Elimination:

Check the coolant pump, temperature sensor and other elements in the coolant circuit.

EMS 535

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

overheat protection

Fault:

Coolant temperature has exceeded 104 ° C.

The reasons:

This malfunction may be caused by the following reasons: low coolant level, coolant leakage or clogged radiator.

Notes:

At a temperature of 106 ° C, the maximum torque of the engine gradually decreases by 30%.

The instrument cluster lights up in the instrument cluster.

Elimination:

Check the coolant level and tightness of the cooling system. Make sure that the radiator is not clogged with dirt and sludge.

EMS 537

Blocks:

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

Title:

Engine speed

Fault:

The engine speed exceeded the allowable value.

The reasons:

Possible reasons:

Operator error, for example, improper downshifting

Oil or fuel leakage in the intake system or in the cylinders.

Notes:

Fuel injection (engine) is stopped when the engine speed is too high and remains off until the speed is normalized. The engine then resumes normal operation if there is no damage.

Elimination:

If there is a problem with the engine, make sure that there is no leakage of oil and fuel in the intake system.

EMS 537

Blocks:

2110164, 2110165, 2110166, 2110162, 2110116

Title:

Engine speed

Fault:

The engine speed exceeded the allowable value.

The reasons:

Incorrect handling, for example, incorrectly shifted to a lower gear.

Notes:

The fuel supply to the engine stops at 3000 rpm. Restoration of the fuel supply occurs after the engine speed becomes less than 3000 rpm. In this case, the engine braking mechanism works with maximum efficiency. After reducing the engine speed, normal engine operation is restored.

Elimination:

Notify the driver about the possibility of engine damage when the engine is running at high speeds.

EMS 564

Blocks:

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

Title:

Turbocharger

Fault:

The current boost pressure exceeds the requested boost pressure greater than the allowed tolerance, or the current boost pressure exceeds the maximum allowable pressure.

The reasons:

Possible reasons:

Faulty turbocharger.

Too much fuel is injected.

The engine runs on engine oil (leakage).

Faulty boost pressure control system motor.

Gas Fired Engine:

Turbine bypass valve stuck in the closed position.

The boost pressure sensor shows an incorrect value.

Notes:

Gas Fired Engine:

There is a danger of hose detachment.

The opening of the throttle valve is limited.

Elimination:

Check the turbocharger and its electric motor.

Check the engine oil consumption, for example, if there is a leak in the turbocharger.

Gas Fired Engine:

Check boost pressure control motor and boost pressure sensor.

EMS 580

Blocks:

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

Title:

Turbine Bypass Solenoid Valve

Fault:

The turbine bypass solenoid valve cannot control the charge air pressure.

The reasons:

Short circuit or open circuit.

Notes:

The charge air pressure cannot be controlled.

Elimination:

Check the element, connectors and wiring. Replace the turbine bypass solenoid valve.

EMS 581

Blocks:

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

Title:

Turbine Bypass Solenoid Valve

Fault:

The turbine bypass solenoid valve cannot control the charge air pressure.

The reasons:

Short circuit of the solenoid valve bypassing the turbine to ground.

Notes:

The charge air pressure cannot be controlled.

Elimination:

Check the element, connectors and wiring. Replace the turbine bypass solenoid valve.

EMS 582

Blocks:

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

Title:

Turbine Bypass Solenoid Valve

Fault:

The turbine bypass solenoid valve cannot control the charge air pressure.

The reasons:

Short circuit of the solenoid valve bypassing the turbine on the + battery.

Notes:

The charge air pressure cannot be controlled.

Elimination:

Check the element, connectors and wiring. Replace the turbine bypass solenoid valve.

EMS 583

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Turbine Bypass Actuator

EMS 585

Blocks:

2098547, 2098546, 2098545, 2096902, 2096901

Title:

Turbine Bypass Valve

EMS 609

Blocks:

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

Title:

Nozzle, cylinder 1

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 611

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 1

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 612

Blocks:

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

Title:

Nozzle, cylinder 2

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 614

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 2

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 615

Blocks:

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

Title:

Nozzle, cylinder 3

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 617

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 3

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 624

Blocks:

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

Title:

Nozzle, cylinder 4

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 626

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 4

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 627

Blocks:

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

Title:

Nozzle, cylinder 5

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 629

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 5

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 630

Blocks:

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

Title:

Nozzle, cylinder 6

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 632

Blocks:

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

Title:

Cylinder balance (min. Or max.) Cylinder 6

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 633

Blocks:

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

Title:

Nozzle, cylinder 7

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.

EMS 641

Blocks:

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

Title:

Cylinder balance (min. Or max.), Cylinder 7

Fault:

The cylinder balance values ​​have reached their maximum and minimum limits.

The reasons:

The cylinder does not output the same power as the other cylinders for the following reason:

nozzle leakage

injector restrictor valve defective.

low compression

The cause may be air in the fuel system, but in this case several cylinders are likely to be affected.

Notes:

Engine running unevenly. If there is too much fuel in the engine, this results in black smoke emissions, and if there is too little fuel in the engine, the result is white smoke emissions.

Recognition of codes invalid can be performed only if:

no active trouble code affecting coolant temperature

engine running at idle

coolant temperature is approximately 80 ° C

Elimination:

Check the nozzle and the compression in the cylinder.

EMS 642

Blocks:

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

Title:

Nozzle, cylinder 8

Fault:

Short to ground.

The reasons:

Short to injector wiring harness.

Notes:

A fault is only recorded while the engine is running. The system continues to attempt to use nozzles. Engine torque is reduced depending on the number of faulty injectors.

Elimination:

Disconnect the injector wires from the control unit and from the injector. Measure the resistance between both sides of the coil and the cylinder block. Resistance must be infinite.

Check the wiring to the connector and the bushing in the cylinder head.

Measure the resistance between each wire and the cylinder block. Resistance must be infinite.

Connect the wires to the engine control unit. Measure the resistance between the wires and ground of the power supply. It must be at least 1 MΩ.