See also: Scania trucks service repair manuals PDF
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Coolant temperature sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. If the engine is actually colder than the pre-programmed value, it will idle more unevenly and be more difficult to start.
The engine will operate at a high idle speed as long as the fault is present.
On engines equipped with an EGR system, the engine control unit will turn off the system.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Coolant temperature sensor
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. If the engine is actually colder than the pre-programmed value indicates, it will idle more irregularly and be more difficult to start.
The engine will operate at a high idle speed as long as the fault is present.
On engines equipped with an EGR system, the engine control unit will turn off the system.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
If a fault occurs, the control unit uses a pre-programmed value. If the engine is actually colder than the pre-programmed value indicates, it will idle more irregularly and be more difficult to start.
The engine will operate at increased idle speed as long as there is a malfunction.
The engine control unit will turn off the EGR system on engines equipped with this system.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Particulate filter
Fault:
Too low pressure drop in the particulate filter.
The reasons:
A possible malfunction is the absence of a filter in the muffler or a malfunction of the differential pressure sensor.
Notes:
This malfunction may lead to an increase in soot particulate emissions.
Elimination:
Check:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The temperature in the area after the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area after the filter in less than 2 minutes.
The reasons:
Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.
Notes:
The red engine indicator light comes on. Filter regeneration is completely blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The temperature in the area after the diesel particulate filter (DPF) is excessively high for normal movement. It is registered by a temperature sensor after the filter.
The reasons:
Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.
Notes:
The red engine warning light comes on, the engine stops.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The temperature at the front of the diesel particulate filter (DPF) is excessively high for regeneration. It is registered by a temperature sensor in the area in front of the filter in less than 2 minutes.
The reasons:
Leakage and oil or fuel entering the exhaust stream in front of the silencer. Temperature sensor malfunction T158.
Notes:
The red engine indicator light comes on. Filter regeneration is completely blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Oxidizing Catalytic Converter
Fault:
The temperature difference between the inlet and outlet openings of the oxidation catalytic converter is greater than expected during normal motion.
The reasons:
Notes:
The engine warning light comes on.
Elimination:
Blocks:
9000000, 2089202, 2089201, 2089200
Title:
Additional drive 14 (aux14), short circuit from low to +24
Fault:
Reset is not defined.
The reasons:
No description
Notes:
No description
Elimination:
No description
Blocks:
9000000, 2089202, 2089201, 2089200
Title:
Additional drive 14 (aux14), open load
Fault:
Reset is not defined.
The reasons:
No description
Notes:
No description
Elimination:
No description
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR Coolant Valve
Fault:
The voltage on the coolant valve in the SCR heating circuit is out of range.
The reasons:
An open circuit or short to ground on the valve circuit.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off.
When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Water Reagent Heating Valve
Fault:
The voltage in the circuit was outside the limits.
The reasons:
An open or short to ground in the water valve electrical circuit to heat the reagent.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Water Reagent Heating Valve
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Short circuit on the electric circuit + 24 V in the electric circuit of the water heating valve.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR Coolant Valve
Fault:
Short to + coolant valve battery in the SCR heating circuit.
The reasons:
No description
Notes:
The SCR system is deactivated and the injection of the reagent is turned off.
When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR system
Fault:
The pressure in the SCR system drops more than expected when the reagent is not injected.
The reasons:
Leakage in the reagent dispenser, reagent supply lines or internal leaks in the main unit.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off.
When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Reagent Pressure
Fault:
During periods when the reagent is not injected, the pressure in the SCR system decreases more than it should be.
The reasons:
Leaks in reagent supply lines, reagent dispenser or internal leaks in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR air pressure
Fault:
The air pressure in the SCR system was out of range.
The reasons:
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
Short circuit to + battery level sensor in the reagent tank.
The reasons:
Short circuit to + battery level sensor in the reagent tank.
Notes:
Reagent injection is turned off.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
Short circuit in the level sensor circuit in the reagent tank.
The reasons:
Short circuit in the level sensor circuit in the reagent tank.
Notes:
Reagent injection is turned off.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – tank level sensor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Short circuit in the electrical circuit of the level sensor in the reagent tank.
Notes:
If the signal voltage is out of range, the control unit uses a preprogrammed value of 100% (full tank).
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – tank level sensor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
A break in the electrical circuit of the level sensor in the reagent tank.
Notes:
If the signal voltage is out of range, the control unit uses a preprogrammed value of 100% (full tank).
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction has been resolved, in order for the malfunction code to become inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
An open in the reagent tank level sensor circuit.
The reasons:
An open in the reagent tank level sensor circuit.
Notes:
Reagent injection is turned off.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Low reagent
Fault:
Low level of reagent in the tank.
The reasons:
Low level of reagent in the tank.
Notes:
Reagent injection is turned off, which negatively affects the level of NOx emissions from the engine.
In the case of engines with a NOx control system, a 40% reduction in torque is active as long as the DTC is active.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Level in the reagent tank
Fault:
The amount of reagent in the tank below the permissible value.
The reasons:
Or too little reagent in the tank or a level sensor in the tank is faulty.
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of high levels of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Electrical failure of the reagent temperature sensor.
The reasons:
Electrical failure of the reagent temperature sensor.
Notes:
Reagent injection is turned off.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system , engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Exceeded lower temperature limit.
The reasons:
Internal malfunction in the main unit.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Reagent Dispenser
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Short circuit on the + 24 V electrical circuit in the reagent dispenser electrical circuit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Reagent Dispenser
Fault:
The voltage in the circuit was outside the limits.
The reasons:
An open or a short to ground in the electrical circuit of the reagent dispenser.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated . Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent Dispenser
Fault:
An open circuit or short to ground in the electrical circuit of the reagent dispenser.
The reasons:
An open circuit or short to ground in the electrical circuit of the reagent dispenser.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off.
When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent Dispenser
Fault:
Short to + reagent dispenser battery or power circuit.
The reasons:
Short to + reagent dispenser battery or power circuit.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off.
When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Unreliable reagent pressure.
The reasons:
Internal malfunction in the main unit.
Notes:
Reagent injection is turned off.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Reagent Pressure
Fault:
The pressure in the system during normal operation was above the allowable value.
The reasons:
The cause of the malfunction may be:
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Reagent pressure sensor, voltage outside acceptable range.
The reasons:
Internal malfunction in the main unit.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Reagent pressure sensor, voltage outside permissible limits.
The reasons:
Internal malfunction in the main unit.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
9000000, 2089202, 2089201, 2089200
Title:
Mountain brake drive, open load
Fault:
Reset not defined
The reasons:
No description
Notes:
No description
Elimination:
No description
Blocks:
9000000, 2089202, 2089201, 2089200
Title:
Drive mountain brake, short to low to +24
Fault:
Reset not defined
The reasons:
No description
Notes:
No description
Elimination:
No description
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
The voltage in the reagent tank temperature sensor circuit was out of range.
The reasons:
An open circuit.
Notes:
No description
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
Invalid reagent temperature.
The reasons:
The temperature sensor values are invalid, or the tank heating system is faulty.
Notes:
No description
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank
Fault:
Reagent temperature sensor short circuit.
The reasons:
Reagent temperature sensor short circuit.
Notes:
No description
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – tank temperature sensor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Short circuit in the tank temperature sensor electrical circuit
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – tank temperature sensor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
An open in the temperature sensor circuit
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
Battery voltage
Fault:
The SCR control unit indicated that the battery voltage was below the allowable value.
It was below 8.6 V.
The reasons:
The fault may occur during a cold start, if the battery is in poor condition.
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR control unit
Fault:
Low battery voltage.
The reasons:
The fault may occur during a cold start, if the battery is in poor condition.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR control unit
Fault:
High battery voltage.
The reasons:
Malfunction may occur when using a forced charge device.
Notes:
High voltage can damage the SCR system.
Reagent injection is turned off.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
Battery voltage
Fault:
The SCR control unit indicated that the battery voltage was above the allowable value.
It was above 64.6 V.
The reasons:
This may be caused by the work start-charger.
Notes:
High voltage levels can damage the SCR system.
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent
Fault:
Insufficient reduction in NOx emissions even though the maximum amount of reagent is injected.
The reasons:
Notes:
No description
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
A temperature sensor located in front of the oxidizing catalytic converter produces an incompatible value when pairwise matching the three sensors.
The reasons:
Malfunction in temperature sensors T158.
Leakage of oil or fuel in the muffler.
Notes:
Filter regeneration blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The temperature sensor, located after the oxidative catalytic converter, gives an incompatible value when pairwise matching the three sensors. The test is carried out for 60 minutes while driving under load, but not during idling.
The reasons:
Notes:
The engine warning light comes on, regeneration is completely blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent Dispenser
Fault:
The pressure in the SCR system does not fall as expected when the valve is opened.
The reasons:
The reason may be the freezing or crystallization of the reagent in the pipelines, hoses, the reagent dispenser or the injection nozzle.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Faulty pressure sensor after throttle.
The reasons:
Faulty pressure sensor after throttle.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Unreliable air pressure after throttle.
The reasons:
Unreliable air pressure after throttle.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Low air pressure after throttle.
The reasons:
Low air pressure after throttle.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Air pressure sensor after the throttle, high voltage.
The reasons:
Air pressure sensor after the throttle, high voltage.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Unreliable air pressure after throttle.
The reasons:
Unreliable air pressure after throttle.
Notes:
Reagent injection is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Reagent tank heating
Fault:
Too low a temperature in the reagent tank.
The reasons:
Notes:
The fault affects NOx emissions from a car. The NOx emissions warning lamp comes on and a text message is displayed.
If the car is equipped with an NOx control system, engine torque is reduced by approximately 40%.
The fault code cannot be cleared while the fault is present.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Open reagent vent valve circuit.
The reasons:
Open reagent vent valve circuit.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To make sure that the communication between the engine control unit and the main SCR unit is working, turn off the power, wait 90 seconds and then turn it on again.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit or malfunction in the vent valve.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Short circuit on the vent valve.
The reasons:
Short circuit on the vent valve.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Malfunction of the reagent heater main unit.
The reasons:
Electrical malfunction
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To make sure that the communication between the engine control unit and the main SCR unit is working, turn off the power, wait 90 seconds and then turn it on again.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Malfunction of the reagent heater main unit.
The reasons:
Electrical malfunction
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Malfunction of the reagent heater main unit.
The reasons:
Electrical malfunction
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Malfunction of the supply voltage circuit of the internal heating system pump of the main unit.
The reasons:
Electrical malfunction
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. As a result of the shutdown, other trouble codes may be generated. Perform diagnostics based on this DTC. To ensure that the communication between the engine control unit and the main SCR unit is working, turn off the power.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Short to battery + in the internal circulation pump.
The reasons:
Short to battery + in the internal circulation pump.
Notes:
The SCR system is deactivated and the injection of the reagent is turned off. When the system is turned off, other trouble codes can be generated. Perform diagnostics based on this DTC. Communication with the engine control unit can also be interrupted. Restore it by turning off the power with the ignition key, waiting 90 seconds and then turning it on again.
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – Main Unit
Fault:
No description
The reasons:
Internal malfunction in the main unit.
Notes:
As a result of a fault, the SCR system shuts down and the reagent injection shuts down.
When the SCR system is turned off, fault codes 4108, 4106, and 4107 relating to data exchange with the SCR system can also be generated. Perform a primary troubleshooting using this fault code.
When the SCR system is disabled, the communication between the SCR control unit and the engine control unit can be interrupted. To ensure correct handling of the DTC, control units must be able to communicate with each other. Try to reestablish the connection, for which you should turn off the ignition, wait 90 seconds and turn on the ignition again.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR air pressure
Fault:
Air pressure at current operating conditions is lower than expected.
The reasons:
Leaks in the compressed air line between the main unit and the reagent dispenser.
This fault may be due to a blockage of the air circuit in the main unit.
Notes:
As a result of a fault, the injection of the reagent is turned off.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40%.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Pneumatic circuit SCR
Fault:
Air pressure in SCR system too low.
The reasons:
Leakage in the air line between the main unit and the reagent injection nozzle.
Notes:
No description
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
The control unit of the system to reduce toxicity of exhaust gases
Fault:
The exhaust emissions control unit is shutting down too soon.
The reasons:
If the car has a battery ground switch, the cause of the malfunction may be the use of the battery ground switch less than 90 seconds after the key is turned off.
Causes of failure may be the following:
Malfunction in the SCR power supply circuit.
Internal malfunction in the control unit of the exhaust gas reduction system.
If the DTC was generated in conjunction with DTC 5657, the reason probably lies outside the SCR system.
Notes:
The SCR system will not shut down correctly if the control unit is turned off too early. The reagent will still remain in the injection hoses and injectors. At low temperatures there is a risk of damage to the SCR system from ice formation in the hoses.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR main unit
Fault:
Power to the main unit turns off too late.
The reasons:
Internal malfunction or fault in the electrical circuit.
Notes:
The power does not turn off, which can lead to a battery discharge.
Elimination:
Check the electrical wiring. If the fault lies in the main unit, it should be replaced.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR system
Fault:
The level of nitrogen oxides after the catalytic converter is higher than expected.
The reasons:
The SCR system does not reduce the level of nitrogen oxides. This may be due to a malfunctioning catalytic converter, a malfunctioning NOx sensor, or an inoperative reagent dosing system.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40%. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098557, 2098556
Title:
Charge air temperature sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Possible reasons:
Open circuit in the temperature sensor charge air.
Malfunction in the electrical circuit of the charge air pressure sensor, coolant temperature sensor, fuel line pressure sensor or fan speed sensor.
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Charge air temperature sensor
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Throttle Actuator
Fault:
The deviation between the requested and measured throttle angle.
The reasons:
Electrical fault, open circuit or short circuit in the electrical circuit.
Notes:
The system can go into fail-safe mode.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
Short circuit to + battery, to ground or open the electrical circuit of the actuator throttle.
The reasons:
Short circuit of pin 3 in connector A4.
Notes:
Unable to control throttle.
Elimination:
Check valve block V107 wiring harness and connectors. Measure the resistance in the valve block and check that it meets the specification.
Blocks:
2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
Short to battery + in the actuator of the throttle valve.
The reasons:
Short to battery + in the actuator of the throttle valve.
Notes:
As a result of inadvertent actuation, the throttle valve may close. This can lead to loss of engine power and poor handling.
Elimination:
Check valve block V107 wiring harness and connectors. Measure the resistance in the valve block and check that it meets the specification.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Throttle Actuator
Fault:
Fuel management has been deactivated due to high temperature, high amperage, or low voltage.
The reasons:
The output stage in ME7 does not work.
Notes:
The engine goes into failsafe mode of operation.
Elimination:
Check fuses.
Replace the ME7 unit.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle valve remains open despite the closing request.
The reasons:
Throttle valve stuck open.
Notes:
Throttle valve control is disabled, but an invalidation check is performed for each shutdown.
Elimination:
Ensure that nothing blocks the throttle valve movement. Check for air leaks. Check the throttle position sensor.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle valve remains closed despite the request for opening.
The reasons:
Throttle valve stuck closed.
Notes:
Throttle valve control is disabled, but an invalidation check is performed for each shutdown. This can lead to loss of engine power and poor handling.
Elimination:
Ensure that nothing blocks the throttle valve movement. Check the throttle position sensor.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The end positions of the position sensor are outside the limits.
The reasons:
Position Sensor Malfunction
Notes:
Unable to adjust throttle valve.
Elimination:
Check the supply voltage to the valve block and the position sensor. Check wiring and connectors. Check throttle valve function.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle position sensor, potentiometer 1, indicates an incorrect position.
The reasons:
Short to ground or open circuit.
Notes:
Maximum engine torque is limited.
The control unit uses a wildcard value.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle position sensor, potentiometer 1, indicates an excessively high voltage.
The reasons:
Short to battery “+” in potentiometer 1.
Notes:
Maximum engine torque is limited.
The control unit uses a wildcard value.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle position sensor, potentiometer 2, indicates an incorrect position.
The reasons:
Short to ground or open circuit.
Notes:
Maximum engine torque is limited.
The control unit uses a wildcard value.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The throttle position sensor, potentiometer 2, indicates an excessively high voltage.
The reasons:
Short to battery “+” in potentiometer 2.
Notes:
Maximum engine torque is limited.
The control unit uses a wildcard value.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Throttle valve
Fault:
The discrepancy between the two potentiometers of the throttle position sensor.
The reasons:
Malfunction of one or both potentiometers.
Notes:
May cause the engine to stop or activate the emergency mode.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Lambda regulation
Fault:
Lambda control has fallen below the minimum permissible limit value.
The reasons:
Notes:
Fault condition can be compensated to some extent by lambda control.
There is a risk of misfire.
Elimination:
Check the gas supply and injectors.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Lambda regulation
Fault:
Lambda control has exceeded the maximum permissible limit value.
The reasons:
Notes:
Fault condition can be compensated to some extent by lambda control.
There is a risk of misfire.
Elimination:
Check the gas supply and injectors.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Gas mixture
Fault:
The engine management system registered by means of Lambda regulation too much air in the gas mixture.
The reasons:
Notes:
Fault condition can be compensated to some extent by lambda control.
There is a risk of misfire.
Elimination:
Completely check the gas and air supply systems.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Gas mixture
Fault:
The engine management system registered, by means of Lambda regulation, too little air in the gas mixture.
The reasons:
Notes:
Fault condition can be compensated to some extent by lambda control.
There is a risk of misfire.
Elimination:
Completely check the gas and air supply systems.
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901
Title:
SCR – NOx sensor after catalytic converter
Fault:
The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.
The reasons:
An open circuit in the NOx sensor circuit
Notes:
Functions in the SCR system are not affected.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Boost pressure sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
With this fault, the engine torque is reduced by approximately 30% while the fault code is active. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Check the coolant temperature sensor, charge-air pressure sensor, charge-air temperature sensor, fuel line pressure sensor and fan speed sensor along with connectors and electrical wires of electrical circuits.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Boost pressure sensor
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
With this fault, the engine torque is reduced by approximately 30% while the fault code is active. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901
Title:
NOx sensor
Fault:
The signal from the NOx sensor does not change as prescribed.
The reasons:
Malfunction or incorrect installation of the NOx sensor.
Notes:
No description
Elimination:
Check that the NOx sensor is installed correctly and, if necessary, replace the NOx sensor.
You can use the following options to verify that the malfunction has been resolved: To verify that you have corrected the malfunction, you can run the “Recognize the DTCs for NOx Validation” test, which is located on the “Checks” tab in SDP3. The test takes approximately 30 minutes and should be performed outdoors.
Otherwise, you can take the following steps so that the control unit recognizes the fault as invalid. Perform a road test of the car and check if the engine and catalytic converter are warm. The NOx sensor is activated when the temperature rises above 120 ° C. The invalidation test starts 5 minutes after the activation of the NOx sensor.
For vehicles with NOx control
To verify troubleshooting:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – NOx sensor after catalytic converter
Fault:
The SCR control unit received a message from the NOx sensor stating that there is a short in the circuit.
The reasons:
Short circuit in the NOx sensor electrical circuit.
Notes:
Functions in the SCR system are not affected.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value. The engine also responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Mass flow meter calibration disabled.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Charge air pressure
Fault:
The voltage from the charge-air pressure sensor was implausible compared with other pressure sensors, or there was an improbable pressure change in accordance with current operating conditions.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, the charge air pressure sensor, the charge air temperature sensor, the fuel line pressure sensor and the fan speed sensor have a common power supply. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If a fault occurs, the control unit uses a pre-programmed value. The engine responds to the activation of fuel management more slowly than it should be. This is a consequence of the malfunction of the exhaust limiter.
In the case of engines with EGR, the engine works with EGR, but without any feedback through the mass flow sensor. This means that the control unit provides only rudimentary regulation of the EGR concentration using the preset values for the position of the EGR valve. Calibration of the mass flow sensor is turned off.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
NOx sensor
Fault:
NOx sensor open circuit in front of the catalytic converter.
The reasons:
NOx sensor open circuit in front of the catalytic converter.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – NOx sensor in front of the catalytic converter
Fault:
The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.
The reasons:
An open circuit in the NOx sensor circuit
Notes:
Functions in the SCR system are not affected.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
NOx sensor
Fault:
NOx sensor malfunction after catalytic converter.
The reasons:
Sensor defective or installed in wrong position.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
NOx sensor
Fault:
Short circuit NOx sensor in front of the catalytic converter.
The reasons:
Short circuit in the NOx sensor electrical circuit.
Notes:
The fault affects the emissions of nitrogen oxides by the engine. NOx warning lamp is on. On engines with a NOx control system, engine torque is reduced by 40% after 36 hours. An active DTC cannot be deleted using SDP3. The following repair operations with the control unit must confirm the repair of the fault.
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
SCR – NOx sensor in front of the catalytic converter
Fault:
The SCR control unit received a message from the NOx sensor indicating that there is a break in the electrical circuit.
The reasons:
An open circuit in the NOx sensor circuit
Notes:
Functions in the SCR system are not affected.
The fault affects the emission of nitrogen oxides (NOx) by the car, and a warning lamp lights up in the instrument cluster, warning of a high level of pollutants. On vehicles with NOx control, a text message is also displayed.
Cars with NOx control
An active DTC limits the maximum engine torque to approximately 40% after the engine has been running for 50 hours.
An active DTC cannot be deleted from the control unit. When the malfunction is resolved so that the malfunction code becomes inactive, the control unit must ensure that the malfunction has been eliminated.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Atmospheric pressure sensor
Fault:
The atmospheric pressure sensor gives an incorrect signal.
The reasons:
There is a malfunction in the atmospheric pressure sensor.
Notes:
On vehicles with NOx emissions control, engine torque is reduced if this DTC remains active for 36 hours.
Elimination:
The atmospheric pressure sensor is connected to the coordinator. Read the trouble codes for the coordinator and follow the instructions given here.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Charge air pressure
Fault:
Charge air pressure too low.
The reasons:
Possible reasons:
Notes:
Engine torque is reduced.
There is a danger of smoking.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Oil temperature sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
An open circuit in the oil temperature sensor circuit
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Oil temperature sensor
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Short circuit in the circuit of the oil temperature sensor
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Oil pressure sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Possible reasons:
Notes:
An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.
Elimination:
Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Oil pressure sensor
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Possible reasons:
Notes:
An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.
Elimination:
Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.
Blocks:
2098557, 2098556, 2110163, 2110160, 9000000, 2089202, 2089201, 2089200
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The oil pressure gauge on the instrument panel shows 0 bar regardless of engine speed. The visual alarm emergency oil pressure is not included.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Oil pressure sensor
Fault:
The voltage level from the sensor was implausible compared to the level that must be available for the current engine speed.
The reasons:
The cause of this DTC may be electrical or mechanical failure.
Electrical faults can be caused by damage to the wiring or sensor failure. There may also be a fault in the electrical circuit of the fuel temperature sensor or the electrical circuit of the mass flow sensor.
Mechanical faults associated with the lubrication system. The cause of low oil pressure can be, for example:
Notes:
An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
If the signal voltage is outside the acceptable range, the control unit uses the preprogrammed value.
The oil pressure gauge on the instrument cluster shows the current oil pressure (even if it is implausible), regardless of the engine speed.
The control lamp for oil pressure is turned on only when the pressure becomes so low that it falls below the limit value for switching on this lamp.
Elimination:
Start by checking the oil level and oil filter. Then check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits. Finally, check the lubrication system and its components.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The fuel injected does not provide the intended temperature rise at the DOC oxidation catalyst.
The reasons:
Notes:
The engine warning light comes on, regeneration is completely blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
The temperature sensor, located after the diesel particulate filter (DPF), gives an incompatible value when pairing the three sensors. The test is carried out for 60 minutes while driving under load, but not during idling.
The reasons:
Notes:
The engine warning light comes on, regeneration is completely blocked.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
Increased pressure in the particulate filter.
The reasons:
The particulate filter is clogged with soot. This is probably due to the fact that the car was operated with a small load for a long time.
Notes:
If soot is present in the particulate filter, fuel consumption increases.
A large amount of soot causes an increase in engine noise, a deterioration in acceleration at high loads, and an increase in the risk of engine failure.
Elimination:
Clean the filter by driving the vehicle at high speed and with a high load for 15 minutes – 1 hour. If the DTC persists, the filter should be replaced.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
Significant pressure drop in the particulate filter.
The reasons:
Notes:
The engine warning light is on, regeneration of the filter is completely blocked.
Active limiting motor torque.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Particulate filter, differential pressure sensor
Fault:
The engine control unit received incorrect data from the differential pressure sensor.
The reasons:
Possible malfunctions – malfunction of the differential pressure sensor or an open circuit in the wires or connectors.
Notes:
This malfunction may lead to an increase in soot particulate emissions.
Elimination:
Check the differential pressure sensor, electrical connectors and wiring.
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116
Title:
Particulate filter
Fault:
The difference in pressure at the inlet and outlet of the particulate filter indicates a value below normal.
The reasons:
A malfunction has occurred due to the absence of a particulate filter in the muffler or the differential pressure sensor gives incorrect readings.
Notes:
No description
Elimination:
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Differential pressure sensor for particulate filter
Fault:
The signal from the differential pressure sensor showed a value that is lower than 0.1 V.
The reasons:
Short circuit in the differential pressure sensor circuit.
Notes:
No description
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2110164, 2110165, 2110166, 2110162, 2110116, 2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Differential pressure sensor for particulate filter
Fault:
The signal from the differential pressure sensor showed a value that exceeds 4.9 V.
The reasons:
Short circuit in the differential pressure sensor circuit.
Notes:
No description
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
EGR, bypass valve
Fault:
Overflow valve not working.
The reasons:
A break in the relief valve circuit.
Notes:
The engine control unit turns off the EGR system and the engine power decreases.
The fault code cannot be cleared while the fault is present.
Elimination:
Check the bypass valve as well as the electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
EGR, bypass valve
Fault:
One or more faults in the EGR bypass valve.
The reasons:
Possible malfunctions – a malfunction of the overflow valve or an open circuit in the wires or connectors.
Notes:
The engine control unit turns off the EGR system and the engine power decreases.
The fault code cannot be cleared while the fault is present.
Elimination:
Perform a general troubleshooting procedure for this item. If other trouble codes are generated, first troubleshoot them.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
EGR, bypass valve
Fault:
The voltage in the circuit was out of range.
The reasons:
An open or short to ground in the electrical circuit of the relief valve.
Notes:
The engine control unit shuts off the EGR system and reduces engine power.
The fault code cannot be cleared while the fault is present.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
EGR, bypass valve
Fault:
The voltage in the circuit was outside the limits.
The reasons:
An open circuit or short circuit to + battery in the overflow valve electrical circuit.
Notes:
The engine control unit turns off the EGR system and the engine power decreases.
The fault code cannot be cleared while the fault is present.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Particulate filter
Fault:
Increased pressure in the particulate filter.
The reasons:
The particulate filter is clogged with soot. This is probably due to the fact that the car was operated with a small load for a long time.
Notes:
If soot is present in the particulate filter, fuel consumption increases.
A large amount of soot causes an increase in engine noise, a deterioration in acceleration at high loads, and an increase in the risk of engine failure.
Elimination:
Clean the filter by driving the vehicle at high speed and with a high load for 15 minutes – 1 hour. If the DTC persists, the filter should be replaced.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Particulate filter
Fault:
Significant pressure drop in the particulate filter.
The reasons:
High levels of soot or soot in the particulate filter. The filter may be damaged or blocked by foreign objects. Damage to the muffler or connecting elements.
Malfunction of differential pressure sensor.
Malfunction of temperature sensor T158 or sensors of other systems.
Notes:
The engine warning light is on, regeneration of the filter is completely blocked.
Active limiting motor torque.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Oil level sensor
Fault:
Malfunction oil level sensor.
The reasons:
The malfunction may be due to the fact that several different faults occur simultaneously in the oil level sensor.
Notes:
The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.
Elimination:
Check the oil level sensor, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Oil level sensor
Fault:
The voltage in the circuit was below acceptable levels.
The reasons:
Short to ground or open circuit.
Notes:
The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.
Elimination:
Check the oil level sensor, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Oil level sensor
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Short circuit to + battery or open circuit.
Notes:
The instrument panel does not show oil level or oil pressure. The control lamp of pressure of oil does not join.
Elimination:
Check the oil level sensor, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coil Electromagnetic Clutch Air Conditioning Compressor
Fault:
Break of the electric circuit of the electromagnetic clutch of the air conditioning compressor clutch.
The reasons:
Malfunction in electrical wiring or electrical circuit connectors.
Notes:
A fault code can be generated when the air conditioning system is activated. The A / C compressor cannot be turned on while the fault is active.
Elimination:
Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coil Electromagnetic Clutch Air Conditioning Compressor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
A short to ground in the power supply wiring of the electromagnetic clutch of the air conditioning compressor clutch.
Notes:
A fault code can be generated when the air conditioning system is activated. The A / C compressor cannot be turned on while the fault is active.
Elimination:
Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coil Electromagnetic Clutch Air Conditioning Compressor
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Short to battery + in the electrical circuit of the winding of the electromagnetic clutch of the air conditioning compressor.
Notes:
It is not possible to control the winding of the electromagnetic clutch of the air conditioning system compressor until the fault is rectified.
The air conditioning compressor may start unexpectedly.
Elimination:
Check the electrical components, electrical connectors and wiring. Measure the resistance of the coupling winding.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Coolant level sensor.
Fault:
The voltage in the coolant level sensor circuit was too high.
The reasons:
Short circuit to + battery or open circuit.
Notes:
No description
Elimination:
Check electrical wiring and connectors.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Coolant level sensor.
Fault:
The voltage in the coolant level sensor electrical circuit was too low.
The reasons:
Short to ground.
Notes:
No description
Elimination:
Check electrical wiring and connectors.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Coolant level
Fault:
The coolant level sensor sent a signal to the engine control unit indicating that the coolant level is too low.
The reasons:
Coolant level too low.
Notes:
No description
Elimination:
Check the coolant level.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Turbocharger, speed sensor T120
Fault:
Induced sensor voltage too low.
The reasons:
An open circuit. The sensor is in the wrong position.
Notes:
Engine power is reduced to protect the turbocharger from damage. The turbocharger’s annular nozzle moves to a safe position.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Turbocharger, speed sensor 1
Fault:
Malfunction in the turbine speed sensor.
The reasons:
The malfunction may be due to the fact that several different faults occur simultaneously in the element.
Notes:
Engine power is reduced to protect the turbocharger from damage.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Turbocharger, speed sensor 1
Fault:
The voltage in the circuit was below acceptable levels.
The reasons:
Short to ground.
Notes:
Engine power is reduced to protect the turbocharger from damage.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Turbocharger, speed sensor 1
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Short to battery +.
Notes:
Engine power is reduced to protect the turbocharger from damage.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Power supply
Fault:
The voltage of one of the sensors having a common power is higher than the set value.
The reasons:
Short circuit on the “+” battery of one of the sensors with common power. It can be one of the following sensors: Oil pressure sensor, mass flow sensor or fuel temperature sensor.
Notes:
With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).
Elimination:
Check sensors, connectors and wiring.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Power supply
Fault:
The voltage of one of the sensors having a common power is below the set value.
The reasons:
A short to ground on one of the sensors with common power. It can be one of the following sensors: Oil pressure sensor, mass flow sensor or fuel temperature sensor.
Notes:
With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).
Elimination:
Check sensors, connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coolant pump.
Fault:
Malfunction of the coolant pump.
The reasons:
The cause of the malfunction is an element having several faults at the same time.
Notes:
The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.
Elimination:
Check the electrical components, electrical connectors and wiring.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coolant pump.
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Possible reasons:
Notes:
The coolant pump is running until it is turned off.
The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.
Elimination:
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901, 9000000, 2089202, 2089201, 2089200
Title:
Coolant pump.
Fault:
The voltage in the circuit was outside the limits.
The reasons:
Possible reasons:
Notes:
The coolant pump is not activated and the cooling efficiency remains low as long as the fault is present.
The fan speed sensor and the coolant pump have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.
Elimination:
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Power supply
Fault:
The voltage of one of the sensors having a common power is higher than the set value.
The reasons:
One of the common-power sensors has a short to battery. This may be one of the following sensors: Coolant temperature sensor, charge air temperature sensor, charge air pressure sensor, fuel line pressure sensor, or fan speed sensor.
Notes:
With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).
Elimination:
Check sensors, connectors and wiring.
Blocks:
2098557, 2098556, 2110163, 2110160
Title:
Power supply
Fault:
The voltage of one of the sensors having a common power is below the set value.
The reasons:
One of the sensors with a common power supply has a short circuit between the power supply circuit of the sensor and the mass point of the sensor. This may be one of the following sensors: Coolant temperature sensor, charge air temperature sensor, charge air pressure sensor, fuel line pressure sensor, or fan speed sensor.
Notes:
With this fault, the engine torque is reduced by 30% while the fault code is active (confirmed).
Elimination:
Check sensors, connectors and wiring.
Blocks:
2098557, 2098556
Title:
Additional analog input
Fault:
The signal level in the circuit exceeded the permissible level.
The reasons:
Malfunction in the coolant temperature sensor circuit, charge air pressure sensor, charge air temperature sensor, or an additional analog input circuit.
Notes:
It is not possible to use a throttle control unit connected to an additional analog input.
The coolant temperature sensor, charge air pressure sensor, charge air temperature sensor and an additional analog input have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.
Elimination:
Blocks:
2098557, 2098556
Title:
Additional analog input
Fault:
The signal level in the circuit is below the allowed limit.
The reasons:
Possible reasons:
Notes:
The coolant temperature sensor, charge air pressure sensor, charge air temperature sensor and an additional analog input have a common power supply. In the event of a fault in one of the elements, it may affect the electrical circuits of other elements.
It is not possible to use a throttle control unit connected to an additional analog input.
Elimination:
Blocks:
2098557, 2098556
Title:
Control block
Fault:
The control unit was unable to convert the signals from the additional analog input.
The reasons:
Internal malfunction in the control unit.
Notes:
It is not possible to use a throttle control unit connected to an additional analog input.
Elimination:
Clear the DTC memory and start the engine. If this DTC is generated again, replace the control unit.
Blocks:
2110163, 2110160
Title:
Mass flow meter
Fault:
The voltage in the circuit exceeded the permissible level.
The reasons:
Possible reasons:
Notes:
An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
The engine will work with exhaust gas recirculation, but without feedback on the mass flow sensor signal. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is disabled.
Elimination:
Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.
Blocks:
2110163, 2110160
Title:
Mass flow meter
Fault:
The voltage in the circuit has fallen below acceptable levels.
The reasons:
Possible reasons:
Notes:
An oil pressure sensor, a fuel temperature sensor, and a mass flow sensor have a shared supply voltage. In the event of a fault in one of the sensors, it may affect the electrical circuits of the other sensors.
The engine will work with exhaust gas recirculation, but without feedback on the mass flow sensor signal. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Calibration of the mass flow sensor is disabled.
Elimination:
Check the oil pressure sensor, fuel temperature sensor, mass flow sensor and connectors and electrical wiring of electrical circuits.
Blocks:
2110163, 2110160
Title:
Control block
Fault:
The control unit could not convert the signal from the sensor.
The reasons:
Internal malfunction in the control unit.
Notes:
The engine will work with exhaust gas recirculation, but without feedback on the signal from the mass flow sensor of the recycled exhaust gas. Therefore, the control unit will only control the composition of EGR gases roughly, “roughly”, using predefined values to set the position of the EGR valve. Mass flow meter calibration disabled.
Elimination:
Clear the DTC memory, start the engine and increase its speed. If this DTC is generated again, replace the control unit.
Blocks:
2098547, 2098546, 2098545, 2096902, 2096901
Title:
Information code for NOx control – cannot be deleted
Fault:
Empty reagent tank. This DTC is generated when there is one or more faults in the NOx control system.
This DTC is used by authorized agencies to see if the NOx control system has been activated, and is not used in car repairs.
The reasons:
Review other active fault codes for NOx control.
Notes:
When the engine management system detects a fault, the NOx warning lamp comes on.
If the DTC remains active for 36 hours, engine power is reduced by 40%.
DTC cannot be cleared. It disappears if it remains inactive for 400 days or 9600 hours.
Elimination:
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