MAN Truck Fault codes engine control unit (EDC)
| P code | SPN
code |
Description | way of | evidence | Reaction |
|
R0069 |
102 |
Charge air pressure sensor |
Check contacts and the sensor wiring and check the turbocharging system for leaks |
Open circuit |
The boost pressure is perceived as
standard. Perceived boost pressure according to the atmospheric pressure |
| R0087 | 3775
3776 |
Line pressure | pressure Check | Opening the pressure relief valve, the engine stop | The failure of the internal combustion engine |
| R0115 | 3091 | Coolant temperature | Checking of sensor voltage | No signal | Issuing the backup option, the torque limit rotation of the internal combustion engine, OBD monitoring is not possible |
| R0130 | 3921 | The concentration of O2 | |||
| R0190 | 3099 | Sensor line pressure | Checking of sensor voltage | No signal | Internal combustion engine continues to operate at 800 BAR pressure of the main, torque limit rotation of the internal combustion engine, reducing the speed to 2000 rev / min for D08, failure
the internal combustion engine. |
|
P1000 |
81 |
Exhaust gas pressure sensor |
contacts check validation speed change differential pressure of exhaust gases | Poor contact pressure is correct | |
|
R1004 |
105 |
Combustion air temperature |
Check contacts, validation rate of change of the charge air temperature. |
High or low temperature, poor contact of the signal line, the wrong signal. |
Failure of the engine. |
|
R1010 |
173 |
The exhaust gas temperature sensor |
contacts check validation rate of change of the exhaust gas temperature. |
High or low temperature, poor contact of the signal line, the wrong signal. |
OBD monitoring is not possible. |
|
R1013 |
1079 |
Power supply line pressure sensor |
Check for an open circuit and the power supply wires and the masses. |
Circuit, there is no signal. |
The engine continues to work with 800 BAR line pressure, torque limit ICE rotation failure of the engine. |
|
R1014 |
1080 |
Sensor supply low-pressure fuel, combustion air and oil pressure. | Check for an open circuit and the power supply wires and weights | Circuit, no signal |
Electrical malfunction. |
|
R1018 |
3081 |
Charge air pressure regulator |
Charge air pressure value can not be adjusted. | Constant control deviation. | ICE torque limit rotation failure of the engine. |
|
R1020 |
3083 |
The correctness of the main pressure sensor readings |
Checking the pressure reduction is stopped when the internal combustion engine to the pressure level in the atmosphere. |
The high or low voltage at the idle sensor ICE |
Electrical malfunction. |
|
R1022 |
3088 |
The pressure sensor after the charge air intercooler in the intake manifold |
Checking of sensor voltage. |
Circuit, there is no signal. |
Imitation of the charge air pressure in an equivalent electrical failure. |
|
R1023 |
3089 |
Combustion air temperature sensor |
Checking of sensor voltage |
Circuit, there is no signal. | OBD monitoring is not possible. |
|
R1028 |
3687 |
Pressure relief valve |
Check opening |
ICE
It stops the internal combustion engine malfunction |
|
|
R1036 |
3745 |
The output stage Charge air pressure actuator mechanism |
Checking on the output stage circuit and for open wires and power supply. |
Circuit, there is no signal. |
The output stage is disabled, internal combustion engine speed is reduced, an electrical failure. |
|
R1037 |
3746 |
Output stage EGR |
Checking on the output stage circuit and for open wires and power supply. |
Circuit, there is no signal. |
The output stage is disabled, internal combustion engine speed is reduced, the failure of the engine. malfunction |
|
R1038 |
3748 |
The output stage of the dosage unit |
Checking on the output stage circuit and for open wires and power supply. |
Circuit, there is no signal. |
The output stage is turned off, the ICE operates with a line pressure of 800 BAR, the internal combustion engine rotational speed is reduced, the torque is limited to the internal combustion engine, the failure of the engine. |
| R1041 | 3756 | Reverse EGR signal | Check for open circuit and power supply wires and the masses. | Circuit, there is no signal. | Lack values or incorrect values from the sensor,
OBD monitoring is not available.
|
|
R1044 |
3777 |
line pressure control loop |
Checking Line Pressure increased. |
High Line Pressure defies regulation. | Not Available return flow of fuel is possible to open the pressure relief valve, the failure of the engine. |
|
R1048 |
3781 |
Pressure relief valve |
Check the valve opening. |
Line Pressure 600 to 800 BAR, limited ICE torque is limited by the frequency of rotation of the internal combustion engine. | |
|
R1049 |
3789 |
Comparing the differential pressure sensor of exhaust gases |
Checking of sensor voltage. |
Circuit, there is no signal. | OBD monitoring is not possible. |
|
R1050 |
3790 |
The correctness of readings comparing the differential pressure of exhaust gas sensor |
Checking low pressure at the working engine. Checking the two different fixed values of the charge air and exhaust gas pressures. |
the pressure difference |
OBD monitoring is not possible. |
|
R1051 |
3792 |
Exhaust gas temperature sensor |
Checking of sensor voltage. |
Circuit, there is no signal. | OBD monitoring is not possible. |
|
R1056 |
3811 |
Accuracy of temperature sensor readings exhaust gases. |
Check sensor readings deviations when switching off the internal combustion engine (gas temperature should drop to ambient temperature). |
High or low temperature. |
Failure exhaust system. |
|
R1066 |
3847 |
Combustion air temperature sensor in the intake manifold |
Checking of sensor voltage. |
Circuit, there is no signal. | OBD monitoring is not possible. |
|
R1069 |
3851 |
throttle position sensor AGR |
Check throttle position. |
Circuit, there is no signal. |
Failure of the engine. |
|
R1070 |
3852 |
Id temperature AGR |
Checking the authenticity of the recirculation of exhaust gases at a temperature of the charge air before AGR and the charge air temperature in the middle of the intake pipe. | The gas temperature in the intake manifold above the gas temperature before the AGR. |
Failure of the engine. |
|
R1071 |
3853 |
AGR |
Checking deviation value AGR controller with adjustable position. | The position deviation from the norm. |
Failure of the engine. |
|
R1300 |
651 |
Injector №1, bank 1 (ICE 4 cylinder: cylinder №1, 6 cylinder internal combustion engine: a cylinder №1, 8-cylinder internal combustion engine: the cylinder №1 main cylinder №5 slave) |
Checking circuit from the injector to the DVS control unit. |
Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electrical fault. |
Disconnecting the injector. |
|
R1301 |
652 |
Injector №1, Bank 2 (4-cylinder internal combustion engine: a cylinder №3, 6 cylinder internal combustion engine: a cylinder №5, 8-cylinder internal combustion engine: the cylinder head №2, №7 slave cylinder) |
Checking circuit from the injector to the DVS control unit. |
Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electrical fault. |
Disconnecting the injector. |
|
R1302 |
653 |
Injector №2, bank 1 (ICE 4 cylinder: cylinder №4, 6 cylinder internal combustion engine: a cylinder №3, 8-cylinder internal combustion engine: the cylinder №3 main cylinder №6 slave) |
Checking circuit from the injector to the DVS control unit. |
Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electrical fault. |
Disconnecting the injector. |
| R1303 | 654 | Injector №2, Bank 2 (4-cylinder internal combustion engine: a cylinder №2, 6 cylinder internal combustion engine: a cylinder
№6, 8-cylinder internal combustion engine: the cylinder №4 main cylinder №8 slave) |
Checking circuit from the injector to the DVS control unit. | Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electric failure. |
Disconnecting the injector. |
|
R1304 |
655 |
Injector №3, Bank 1 (internal combustion engine, 6-cylinder: the cylinder №2) |
Checking circuit from the injector to the DVS control unit. |
Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electrical fault. |
Disconnecting the injector. |
|
R1305 |
656 |
Injector №3, bank 2 (DVS 6-cylinder: the cylinder №4) |
Checking circuit from the injector to the DVS control unit. |
Circuit, there is no signal. FMI4 wiring breakage, there is no signal.
FMI1 circuit or other electrical fault. |
Disconnecting the injector. |
|
R1306 |
3678 |
The bank of injectors 1 |
Pressure check. |
Circuit, there is no signal. | Disconnecting the injector. |
|
R1307 |
3679 |
Bank injectors 2 |
Pressure check. |
Circuit, there is no signal. | Disconnecting the injector. |
|
P1500 |
190 |
Sensor speed. |
Checking speed sensor camshaft and crankshaft. | Wrong signal. |
Electrical malfunction. |
|
R1504 |
3063 |
EDC inertia phase is not completed. |
Verifying the completion of the last two freewheel. | OBD monitoring is not possible. | |
| R1509 | 3671 | EDC failure when reading a non-volatile memory (EEPROM) | Checking reading procedure. | The checksum is not correct. | |
|
R1510 |
3673 |
CAN2 |
Check CAN2 |
Missing or wrong signal. Defective component. | |
|
R1511 |
3676 |
CAN2 |
Checking off the output stage injectors. | Circuit, there is no signal. | |
|
R1512 |
3732 |
Graduation fault during initialization. |
Checking device for monitoring overvoltage. |
Device for monitoring overvoltage EDC unit is not properly. | |
|
R1514 |
3736 |
The output stage is disabled EDC. |
stage verification. |
overstrain or serviceable safety line. | |
| R1515 | 3737 | Initialization in SLAVE / MASTER. | inspectionSLAVE / MASTER | ||
|
R1517 |
3752 |
Sensor camshaft speed. |
Checking speed signal. |
Missing or not the right message.
Polarity is not correct. |
Electrical malfunction. ICE works only with the crankshaft sensor. |
|
R1518 |
3753 |
Sensor crankshaft speed. |
Checking speed signal. |
Missing or not the right message.
Polarity is not correct. |
Electrical malfunction. ICE works only with the crankshaft sensor. |
| R1519 | 3754 | The signaling device is not properly during system startup. | The device is not properly. | The internal combustion engine is switched off. | |
| R1521 | 3785 | Failed job change SLAVE / MASTER | Checking workSLAVE / MASTER | ||
|
R1535 |
3849 |
Determining the SCR catalyst. |
Check for smoke sensor exhaust gases. If the temperature is low, then the sensor does not smoke detector.) | This temperature is insufficient to the load. |
Failure exhaust system. |
|
R2031 |
3794 |
exhaust gas temperature sensor after a posttreatment. |
Checking of sensor voltage. |
Circuit, there is no signal. | Failure exhaust system. |
| R2200 | 3920 | The concentration of NOx | |||
| R2208 | 3919 | Heating NOx sensor | |||
|
R2226 |
3046 |
The atmospheric pressure sensor. |
Checking of sensor voltage. |
Circuit, there is no signal. |
Electrical malfunction. |
| U1009 | 3819 | CAN exhaust gases. | Check CAN3 | Signal is absent, defective
component. |
| U1011 | 3821 | CAN exhaust gases. | Check CAN3 | |||
|
U1012 |
3822 |
CAN exhaust gases. |
Check for messages. |
CAN3, the response timeout. |