Mercedes-Benz fault codes
20,291 codes · 1,724 vehicle records · 258 ECU records · 56,350 live-data parameters
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Codes 20,291
| Code | Description | Brands | System |
|---|---|---|---|
| P1B014B | General overheat temperature monitoring error. At least one ASIC report TEMP_ERR bit set in error register 2 | 1 | Powertrain |
| P1B0196 | General none expected NABE error of at least on Hs-ASIC without any fault reason detected | 1 | Powertrain |
| P1B0197 | General none expected NABE error of at least on Ls-ASIC without any fault reason detected | 1 | Powertrain |
| P1B01FA | General none expected NERR1 error of at least on Hs-ASIC without any fault reason detected | 1 | Powertrain |
| P1B01FB | General none expected NERR1 error of at least on Ls-ASIC without any fault reason detected | 1 | Powertrain |
| P1B01FD | An internal fault has occurred in the logic module of control unit 'Electric machine A'. | 1 | Powertrain |
| P1B01FF | An internal fault has occurred in the logic module of control unit 'Electric machine A'. | 1 | Powertrain |
| P1B0973 | Contact 'Positive pole' of the contactor in control unit 'DC safety system' has a malfunction. Actuator Stuck Closed | 1 | Powertrain |
| P1B0A73 | Contact 'Negative pole' of the contactor in control unit 'DC safety system' has a malfunction. Actuator Stuck Closed | 1 | Powertrain |
| P1B0C | Drive Motor Control Module Hybrid/EV Battery Voltage Isolation Sensing Circuit 2 High Voltage | 14 | Powertrain |
| P1B0C00 | The calibration from the High-Voltage sensor in control unit 'Electric machine A' is faulty. | 1 | Powertrain |
| P1B0E63 | The precharging time of control unit 'DC safety system' is too long. Circuit / Component Protection Time-Out | 1 | Powertrain |
| P1B1001 | The power supply at control unit 'DC safety system' has a malfunction. General Electrical Failure | 1 | Powertrain |
| P1B1100 | No description available | 1 | Powertrain |
| P1B164B | The output of the electric machine is reduced. There is a fault due to overtemperature. | 1 | Powertrain |
| P1B17 | Hybrid/EV battery 27 circuit low voltage | 15 | Powertrain |
| P1B1700 | The overload protection of switch 'Precharging' of the high-voltage battery is active. | 2 | Powertrain |
| P1B1701 | Precharge energy overload | 1 | Powertrain |
| P1B8F00 | Detected fault concerning plausibility of ESM_Hyb_sys_started_nvv (CF value). | 1 | Powertrain |
| P1B9200 | The connection of the alternator (circuit 30/31) has an open circuit. | 1 | Powertrain |
| P1BB006 | rotor temperature model has malfunction (RTM ML) | 1 | Powertrain |
| P1BB04B | The temperature value of the differential lock on the rear axle is outside the valid range.Over Temperature | 1 | Powertrain |
| P1BB09D | The temperature value of the differential lock on the rear axle is outside the valid range. Component or System Under Temperature | 1 | Powertrain |
| P1BB200 | Der Sensor 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. | 1 | Powertrain |
| P1BB242 | Sensor 'Differential lock on rear axle' has a malfunction. General Memory Failure | 1 | Powertrain |
| P1BC411 | Die Signalleitung 'EKP_Lauf' hat Funktionsstörung. | 1 | Powertrain |
| P1C0100 | HV-Battery - Replace HV Battery | 1 | Powertrain |
| P1C0200 | HV-Battery - Internal Isolation Failure | 1 | Powertrain |
| P1C0300 | HV-Battery - FEIM Failure | 1 | Powertrain |
| P1C0800 | HV-Battery - HV Discharge Fault | 1 | Powertrain |
| P1C0900 | HV-Battery - Overtemperature | 1 | Powertrain |
| P1C0A00 | HV-Battery - Precharge Too Short | 1 | Powertrain |
| P1C0B00 | HV-Battery - Precharge Too Long | 1 | Powertrain |
| P1C0C00 | HV-Battery - 12V Undervoltage | 1 | Powertrain |
| P1C0F00 | HV-Battery - Coolant Inspection Port | 1 | Powertrain |
| P1C40 | Motor overheating warning | 15 | Powertrain |
| P1C4000 | Communication with the coolant pump of the high-voltage battery module has a malfunction. | 1 | Powertrain |
| P1C41 | Inverter overheating warning | 15 | Powertrain |
| P1C4800 | Das Ventil für Kolbenkühlung hat Unterbrechung. | 1 | Powertrain |
| P1C4813 | Das Ventil für Kolbenkühlung hat Unterbrechung.Es liegt eine Unterbrechung vor. | 1 | Powertrain |
| P1C4900 | Das Ventil für Kolbenkühlung hat Kurzschluss nach Masse. | 1 | Powertrain |
| P1C4911 | Das Ventil für Kolbenkühlung hat Kurzschluss nach Masse.Es liegt ein Kurzschluss nach Masse vor. | 1 | Powertrain |
| P1C4A00 | Das Ventil für Kolbenkühlung hat Kurzschluss nach Plus. | 1 | Powertrain |
| P1C4C00 | Das Steuergerät 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. | 1 | Powertrain |
| P1C4C04 | Das Steuergerät 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. Es liegt ein interner Fehler vor. | 1 | Powertrain |
| P1C4C54 | Control unit 'Differential lock on rear axle' has a malfunction.Missing Calibration | 1 | Powertrain |
| P1C4C88 | Die Kommunikation mit dem AEPU-CAN hat Funktionsstörung / Bus Off | 1 | Powertrain |
| P1C4C98 | Das Steuergerät 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. Die Komponente oder das System hat Übertemperatur. | 1 | Powertrain |
| P1C4C9D | Das Steuergerät 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. Die Komponente oder das System hat Untertemperatur. | 1 | Powertrain |
| P1C4D11 | Der Stellmotor 'Differenzialsperre an der Hinterachse' hat Funktionsstörung. Es liegt ein Kurzschluss nach Masse vor. | 1 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.