MAN Truck Fault codes engine control unit (EDC)

By | 25/10/2018

MAN engines ECU error codes list

See also:

MAN ECU EDC Fault Codes

MAN ECU EDC

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.