Error codes Mercedes Atego MR unit (Control engine)
Electronic Control Unit is also known as engine brain. The engine brain is a unit with a microprocessor that controls all the electronics on the vehicle and the sensors on the vehicle. Control unit; It is used in vehicle groups such as passenger cars, light commercial vehicles, heavy vehicles, tractors, work machines. Since the inside of the brain is equipped with a complex electronic integrated system, a malfunction in the brain is a difficult task. is work.
ERROR CODES | EXPLANATION |
---|---|
MR 0101 | CAN-L connection to FR is faulty |
MR 0102 | Data from the FR con/trol unit (/traffic con/trol) is wrong |
MR 0104 | CAN connection to FR is faulty |
MR 0149 | CAN parameterization error |
MR 0204 | CAN-High-wire to SCR- frame module (Euro 4 or Euro 5) is defective. |
MR 0308 | Crankshaft position sensor, short to ground |
MR 0309 | Crankshaft position sensor, open circuit |
MR 0310 | Crankshaft position sensor: signal too weak |
MR 0311 | Crankshaft position sensor: incorrect synchronization of crankshaft and camshaft signals. |
MR 0312 | Crankshaft position sensor: no signal |
MR 0313 | Crankshaft position sensor: wrong polarity. |
MR 0408 | Camshaft position sensor, short circuit to ground |
MR 0409 | Camshaft position sensor, open circuit |
MR 0412 | Camshaft position sensor: no signal |
MR 0413 | Camshaft position sensor: reverse polarity |
MR 0530 | Overspeed |
MR 0612 | Signal ‘frequency fan rotation’ is missing. |
MR 0631 | The fan speed is too low. |
MR 0722 | The temperature after the catalyst is too high. |
MR 0782 | Catalyst missing. |
MR 0788 | The temperature in front of the catalyst is too high (threshold value 1 exceeded). |
MR 0789 | The temperature in front of the catalyst is too high (threshold value 2 exceeded). |
MR 0797 | The temperature in front of the catalyst is too high (reduced engine power). |
MR 0815 | The temperature sensor in front of the catalyst has an open circuit or a short to positive. |
MR 0816 | The temperature sensor in front of the catalyst has a short to ground. |
MR 0915 | The temperature sensor behind the catalyst has an open circuit or a short to positive. |
MR 0916 | The temperature sensor behind the catalyst has a short to ground. |
MR 1015 | The oil temperature sensor has exceeded the measurement range (short to positive, open circuit). |
MR 1016 | The oil temperature sensor has not reached the minimum value of the measuring range (short to ground). |
MR 1115 | The fuel temperature sensor has exceeded the measurement range (short to positive, open circuit). |
MR 1116 | The fuel temperature sensor has not reached the minimum value of the measuring range (short to ground). |
MR 1215 | Combined sensor ‘boost pressure and charge air temperature’: temperature sensor, measuring range exceeded (short to positive, open circuit) |
MR 1216 | Combined sensor ‘boost pressure and charge air temperature’: temperature sensor, minimum range not reached measurements (short to ground) |
MR 1315 | Atmospheric pressure sensor, measurement range exceeded (short to positive, open circuit). |
MR 1316 | Atmospheric pressure sensor, the minimum value of the measuring range has not been reached (short to ground). |
MR 1415 | Combined sensor ‘boost pressure and charge air temperature’: pressure sensor, measuring range exceeded (short to positive, open circuit) |
MR 1416 | Combined sensor ‘boost pressure and charge air temperature’: pressure sensor, minimum range not reached measurement (short circuit to ground) |
MR 1417 | Combined sensor ‘boost pressure and charge air temperature’: pressure sensor, measured value implausible MR 1515 |
MR 1516 | Coolant temperature sensor, the minimum value of the measuring range has not been reached (short to ground). |
MR 1615 | Oil pressure sensor, measurement range exceeded (short to positive, open circuit). |
MR 1616 | Oil pressure sensor, the minimum value of the measuring range has not been reached (short to ground). |
MR 1617 | Oil pressure sensor, measured value implausible |
MR 1715 | Combined input: measuring range exceeded |
MR 1716 | Combined input: minimum measuring range not reached |
MR 1717 | Combined input: implausible signal |
MR 1818 | Discharge circuit defective |
MR 1820 | Boost pressure exceeded |
MR 1822 | The charge air temperature is exceeded |
MR 1873 | The speed of the turbocharger has a violation of uniform movement. |
MR 1874 | The deviation of the set value of the charge air pressure con/trol is too large. |
MR 1876 | Boost pressure for braking mode is not enough. |
MR 1878 | The discharge circuit is faulty |
MR 1917 | The measured value of the fuel pressure sensor is unreliable. |
MR 2017 | The measured value of the oil pressure sensor is unreliable. |
MR 2020 | Oil pressure is too low. |
MR 2021 | Oil pressure is too low. |
MR 2026 | The engine oil level is too high or too low. |
MR 2122 | The coolant temperature is too high. |
MR 2219 | Terminal 15 of the MR or FR con/trol unit has an open circuit. |
MR 2319 | Terminal 50 of the MR or FR con/trol unit has an open circuit. |
MR 2415 | The differential fuel pressure sensor has an open circuit. |
MR 2416 | The differential fuel pressure sensor has a short to positive, ground. |
MR 2509 | Oil level sensor: open circuit |
MR 2515 | Oil level sensor, short circuit to positive, measuring range exceeded |
MR 2516 | Oil level sensor, short circuit to ground, minimum measuring range not reached |
MR 2517 | Oil level sensor: measured value unreliable |
MR 2612 | The turbocharger speed sensor has an open circuit, a short to ground, a short to positive. |
MR 2615 | The turbocharger speed sensor has a short to positive, an open circuit. |
MR 2616 | The turbocharger speed sensor has a short to ground. |
MR 2712 | There is no speed signal from the generator (timeout). Or The turbocharger speed sensor has an open circuit, a short to ground, a short to positive (turbocharger 2). |
MR 2804 | The NOx sensor has a communication failure. |
MR 2815 | The NOx sensor has a short to positive, an open circuit. |
MR 2816 | The NOx sensor has a short to ground. |
MR 2971 | Too high emission of ni/trogen oxides (1 threshold value exceeded) |
MR 2972 | Too high emission of ni/trogen oxides (2 threshold value exceeded) |
MR 3015 | Fuel pressure sensor, measuring range exceeded (short circuit to positive, open circuit) |
MR 3016 | Fuel pressure sensor, the minimum of the measuring range has not been reached (short circuit to ground) |
MR 3115 | Charge air temperature sensor 2 has an open circuit. |
MR 3116 | Charge air temperature sensor 2 has a short circuit. |
MR 3215 | The temperature sensor of the exhaust gas recirculation system has an open circuit. |
MR 3216 | The temperature sensor of the exhaust gas recirculation system has a short circuit. |
MR 3332 | Exhaust gas recirculation temperature sensor: value out of range. |
MR 3415 | The air humidity sensor has a short to positive, an open circuit. |
MR 3416 | The air humidity sensor has a short to ground. |
MR 3515 | The air temperature sensor has a short to positive, an open circuit. |
MR 3516 | The air temperature sensor has a short to ground. |
MR 3604 | Missing CAN message ‘Air temperature’. |
MR 3617 | The measured value of the ambient temperature sensor is unreliable. |
MR 3706 | The SCR compressed air valve has a short to ground. |
MR 3707 | The SCR compressed air valve has a short to positive. |
MR 3709 | The SCR compressed air valve has an open circuit. |
MR 3817 | The measured values of the temperature sensors on the catalyst are unreliable. |
MR 3906 | The AdBlue pump has a short to ground. |
MR 3907 | The AdBlue pump has a short to positive. |
MR 3909 | The AdBlue pump has an open circuit. |
MR 4024 | Internal error in the con/trol unit |
MR 4034 | Internal error in the con/trol unit |
MR 4035 | Internal error in the con/trol unit |
MR 4036 | Internal error in the con/trol unit |
MR 4037 | Internal error in the con/trol unit |
MR 4038 | Internal error in the con/trol unit |
MR 4039 | Starter con/trol (output stage) faulty |
MR 4040 | Internal error in the con/trol unit |
MR 4041 | Internal error in the con/trol unit |
MR 4047 | Internal error in the con/trol unit |
MR 4048 | Internal error in the con/trol unit |
MR 4049 | Invalid parameterization of proportional valves |
MR 4050 | Internal error in the con/trol unit |
MR 4051 | Internal error in the con/trol unit |
MR 4052 | Internal error in the con/trol unit |
MR 4053 | Internal error in the con/trol unit |
MR 4054 | Internal error in the con/trol unit |
MR 4056 | Internal error in the con/trol unit |
MR 4058 | Data block in the con/trol unit MR engine regulation (PLD) ) were changed. |
MR 4092 | Internal error in the con/trol unit |
MR 4149 | Motor brake parameterized incorrectly. |
MR 4200 | Proportional valve 5 has a short to positive. |
MR 4201 | Proportional valve 5 has a short to ground. |
MR 4202 | Proportional valve 7 has a short to ground. |
MR 4203 | Proportional valve 7 has an open circuit. |
MR 4204 | Proportional valve 7 has a short to positive. |
MR 4205 | The throttle position sensor has a short to positive, an open circuit. |
MR 4206 | Throttle position sensor has a short to ground. |
MR 4207 | The temperature sensor in front of the diesel oxidation catalyst has a short to positive, an open circuit. |
MR 4208 | The temperature sensor in front of the diesel oxidation catalyst has a short to ground. |
MR 4209 | The temperature sensor behind the diesel oxidation catalyst has a short to positive, an open circuit. |
MR 4210 | The temperature sensor behind the diesel oxidation catalyst has a short to ground. |
MR 4211 | The pressure difference sensor in front of the particulate filter has a short to positive, an open circuit. |
MR 4212 | The pressure difference sensor in front of the particulate filter has a short to ground. |
MR 4213 | The pressure difference sensor behind the particulate filter has a short to positive, an open circuit. |
MR 4214 | The pressure difference sensor behind the particulate filter has a short to ground. |
MR 4215 | The differential pressure in the particulate filter is too high. |
MR 4216 | The differential pressure in the particulate filter is too low. |
MR 4217 | Throttle adjustment deviation is too large. |
MR 4218 | Initial throttle setting failed. |
MR 4219 | The diffuser in the AdBlue dispenser is clogged. |
MR 4220 | Dispenser dirty |
MR 4221 | Diffuser heating has an open circuit. |
MR 4222 | Diffuser heating has a short to ground. |
MR 4223 | Diffuser heating has a short to positive. |
MR 4224 | Internal error in the con/trol unit |
MR 4225 | Bank 1 proportional valve has a short to positive. |
MR 4226 | Bank 1 proportional valve has a short to ground. |
MR 4227 | Internal malfunction of the con/trol unit |
MR 4228 | Missing SORT components. |
MR 4229 | The measured value of the SORT temperature sensors (pair A) is unreliable. |
MR 4230 | The measured value of the SORT temperature sensors (pair B) is unreliable. |
MR 4231 | The particulate filter is not installed. |
MR 4232 | The measured value of the differential pressure sensor in front of the particulate filter is unreliable. |
MR 4233 | The measured value of the differential pressure sensor after the particulate filter is unreliable. |
MR 4234 | Too high emission of ni/trogen oxides due to an unknown cause (2 threshold value exceeded) |
MR 4235 | Ni/trogen oxide emissions too high due to poor AdBlue quality |
MR 4236 | Ni/trogen oxide emissions too high due to insufficient AdBlue dosing |
MR 4237 | The measured value of the NOx sensor is implausible. |
MR 4238 | The temperature in the particulate filter is too low. |
MR 4239 | Sensor unit 1 in the MR con/trol unit has a short circuit. |
MR 4240 | Sensor unit 2 in the MR con/trol unit has a short circuit. |
MR 4241 | Sensor block 1 in the SCR module on the frame has a short circuit. |
MR 4242 | Sensor block 2 in the SCR module on the frame has a short circuit. |
MR 4243 | Sensor block 3 in the SCR module on the frame has a short circuit. |
MR 4244 | Malfunction of the NOx sensor |
MR 4245 | The ‘NOx Sensor’ component is faulty. |
MR 4246 | Too high initial emission of ni/trogen oxides |
MR 4247 | Defective ‘catalyst’ assembly. |
MR 4248 | Low quality AdBlue or insufficient dosing of AdBlue |
MR 4249 | Too high emission of ni/trogen oxides |
MR 4415 | The pressure difference sensor in front of the particulate filter has a short to positive, an open circuit. |
MR 4416 | The differential pressure sensor in front of the particulate filter has a short to ground. |
MR 4805 | Bank 1 injector has a short to positive. |
MR 4806 | The return of the unit injectors of row 1 has a short to ground. |
MR 4905 | Bank 2 injector has a short to positive. |
MR 4906 | The return of the unit injectors of row 2 has a short to ground. |
MR 5026 | Cylinder 1 injector: valve does not open |
MR 5027 | Cylinder 1 injector: con/trol failure |
MR 5028 | Cylinder 1 injector: short circuit |
MR 5126 | Cylinder 2 injector: valve does not open |
MR 5127 | cylinder 2 injector: con/trol failure |
MR 5128 | cylinder 2 unit injector: short circuit |
MR 5226 | cylinder 3 unit injector: valve does not open |
MR 5227 | cylinder 3 unit injector: con/trol failure |
MR 5228 | cylinder 3 unit injector: short circuit |
MR 5326 | Cylinder 4 injector: valve does not open |
MR 5327 | Cylinder 4 injector: con/trol failure |
MR 5328 | Cylinder 4 injector: short circuit |
MR 5426 | Cylinder 5 injector: valve does not open |
MR 5427 | Cylinder 5 injector: con/trol malfunction |
MR 5428 | cylinder 5 injector: short circuit |
MR 5526 | Cylinder 6 unit injector: valve does not open |
MR 5527 | Cylinder 6 unit injector: con/trol failure |
MR 5528 | Cylinder 6 unit injector: short circuit |
MR 5626 | Cylinder 7 unit injector: valve does not open |
MR 5627 | Cylinder 7 injector: con/trol failure |
MR 5628 | Cylinder 7 injector: short circuit |
MR 5726 | Cylinder 8 injector: valve does not open |
MR 5727 | Cylinder 8 injector: con/trol fault |
MR 5728 | Cylinder 8 injector: short circuit |
MR 5806 | AdBlue line heater has a short to ground. |
MR 5807 | AdBlue pipeline heating has a short to positive. |
MR 5809 | The heating of the AdBlue pipeline has an open circuit. |
MR 5869 | The heating of the AdBlue pipeline is faulty. |
MR 5906 | The AdBlue tank heating solenoid valve has a short to ground. |
MR 5907 | The AdBlue tank heating solenoid valve has a short to positive. |
MR 5909 | The AdBlue heating solenoid valve has an open circuit. |
MR 5969 | The AdBlue tank heating valve is defective. |
MR 6015 | The AdBlue level sensor has a short to positive, an open circuit. |
MR 6016 | AdBlue level sensor has a short to ground. |
MR 6029 | The filling level of the AdBlue tank is too low. |
MR 6115 | AdBlue tank temperature sensor has a short to positive, open circuit. |
MR 6116 | AdBlue tank temperature sensor has a short to ground. |
MR 6169 | Sensor ‘Fill level / temperature of the AdBlue tank’ is defective. |
MR 6293 | Internal malfunction in the SCR module on the frame |
MR 6327 | OBD lamp activation is broken. |
MR 6409 | The heating flange has an open circuit. |
MR 6432 | Heated flange failure |
MR 6506 | The oil separator diagnostic wire has a short to ground. |
MR 6564 | The oil separator diagnostic wire has an open circuit or a short to positive. |
MR 6678 | The exhaust gas recirculation valve is defective. |
MR 6679 | The temperature difference between the exhaust gases and the coolant is unreliable. |
MR 6720 | AdBlue pressure is too high. |
MR 6721 | AdBlue pressure is too low. |
MR 6770 | AdBlue pressure drop during pump overrun is too low. |
MR 6777 | The current consumption of the AdBlue pump is too high. |
MR 6820 | SCR compressed air pressure too high. |
MR 6821 | SCR compressed air pressure is too low. |
MR 6883 | The air supply of the SCR compressed air system is broken. |
MR 6949 | Parameterization error |
MR 6994 | The exhaust gas after/treatment system is disabled and the diagnostic program is active |
MR 6995 | The exhaust gas after/treatment system is disabled and the diagnostic program is active |
MR 7006 | Proportional valve 1 has a short circuit to ground. |
MR 7007 | Proportional valve 1 has a short to positive. |
MR 7009 | Proportional valve 1 has an open circuit. |
MR 7106 | Solenoid valve 3: fan stage 1 has a short to ground. |
MR 7107 | Proportional valve 3 has a short to positive. |
MR 7109 | Solenoid valve 3: fan stage 1 has an open circuit. |
MR 7112 | Solenoid valve 3: fan overdrive |
MR 7207 | Proportional valve 4 has a short to positive. |
MR 7209 | Solenoid valve 4: fan stage 2 has an open circuit. |
MR 7305 | Solenoid valve 2: decompression valve brake has a short to positive. |
MR 7306 | Solenoid valve 2: decompression valve brake has a short to ground. |
MR 7307 | Proportional valve 2 has a short to positive. |
MR 7309 | Proportional valve 2 has an open circuit. |
MR 7317 | Solenoid valve 2: decompression valve brake has an open circuit or short to ground. |
MR 7405 | Proportional valve 5 has a short to positive. |
MR 7408 | Proportional valve 5 has a short to ground. |
MR 7542 | High battery voltage |
MR 7543 | Low battery voltage |
MR 7606 | Proportional valve 6 has a short to ground. |
MR 7609 | Proportional valve 6 has an open circuit. |
MR 7705 | Bank 1 proportional valve has a short to positive. |
MR 7708 | Bank 1 proportional valve has a short to ground. |
MR 7805 | Bank 2 proportional valve has a short to positive. |
MR 7808 | Bank 2 proportional valve has a short to ground. |
MR 7905 | The proportional valve of the SCR module row on the frame has a short to positive. |
MR 7908 | The proportional valve of the row of the SCR module on the frame has a short to ground. |
MR 8005 | Terminal 50 to primary relay (short to positive) |
MR 8008 | Terminal 50 to primary relay (short to ground) |
MR 8009 | Terminal 50 to primary relay (open circuit) |
MR 8033 | Faulty con/trol relay |
MR 8039 | Con/trol starter (output stage) faulty |
MR 8086 | Starter not engaged |
MR 8106 | SCR compressed air shut-off valve has a short to ground. |
MR 8107 | SCR compressed air shut-off valve has a short to positive. |
MR 8109 | SCR compressed air shut-off valve has an open circuit. |
MR 8206 | The AdBlue metering valve has a short to ground. |
MR 8207 | The AdBlue metering valve has a short to positive. |
MR 8209 | The AdBlue metering valve has an open circuit. |
MR 8315 | The AdBlue temperature sensor has a short to positive, an open circuit. |
MR 8316 | AdBlue temperature sensor has a short to ground. |
MR 8415 | The AdBlue pressure sensor has a short to positive, an open circuit. |
MR 8416 | AdBlue pressure sensor has a short to ground. |
MR 8417 | The measured value of the AdBlue pressure sensor is unreliable. |
MR 8515 | The SCR compressed air sensor has a short to positive, an open circuit. |
MR 8516 | SCR compressed air sensor has a short to ground. |
MR 8517 | The measured value of the compressed air pressure sensor SCR is unreliable. |
MR 8690 | Current AdBlue consumption is too high. |
MR 8691 | The current consumption of AdBlue is too low. |
MR 8790 | Average AdBlue consumption is too high. |
MR 8791 | Average AdBlue consumption is too low. |
MR 8896 | AdBlue pressure is unreliable. |
MR 8906 | SCR compressed air shut-off valve has a short to ground. |
MR 8907 | SCR compressed air shut-off valve has a short to positive. |
MR 8909 | The SCR compressed air shut-off valve has an open circuit. |
MR 9044 | Cylinder 1 Injector: idle speed adjustment in the limit area |
MR 9045 | Cylinder injector 1: Cylinder injector correction in the limit area |
MR 9144 | Cylinder 2 Injector: idle speed adjustment in the limit area |
MR 9145 | Cylinder 2 injector: cylinder-by-cylinder correction in the limitation zone |
MR 9244 | Cylinder-injector 3: idle speed adjustment in the limitation area |
MR 9245 | Cylinder-injector 3: cylinder-by-cylinder correction in the limitation zone |
MR 9344 | Cylinder 4 injector: idle speed adjustment in the res/tricted area |
MR 9345 | Cylinder injector 4: cylinder-by-cylinder correction in the res/tricted area |
MR 9444 | Cylinder 5 injector: idle speed adjustment in the res/tricted area |
MR 9445 | Cylinder 5 injector: cylinder-by-cylinder correction in the res/triction zone |
MR 9544 | Cylinder-injector unit 6: idle speed adjustment in the res/triction zone MR 9545 |
MR 9645 | nozzle of cylinder 7; correction for individual cylinders in the res/tricted area |
MR 9744 | Cylinder 8 injector: adjustment of idle speed uniformity in the limit area |
MR 9745 | Cylinder 8 injector; correction for individual cylinders in the res/triction zone |
MR 9846 | Correction for individual cylinders failed |
MR 9960 | Too many keys |
MR 9961 | Immobilizer protection function activated, MR con/trol unit blocked |
MR 9962 | Immobilizer protection function activated in the MR unit MR |
MR 9963 | On CAN data bus /transponder code missing |
MR 9964 | /Transponder code missing at terminal 50 |
MR 9965 | Incorrect /transponder key |