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 |
|---|---|---|---|
| P0C3800 | Temperature sensor plausibility | 1 | Powertrain |
| P0C3811 | Temperature sensor A of the DC/DC converter has an electrical fault. There is a short circuit to ground. | 1 | Powertrain |
| P0C3812 | Temperature sensor A of the DC/DC converter has an electrical fault. There is a short circuit to positive | 1 | Powertrain |
| P0C3813 | Temperature sensor A of the DC/DC converter has an electrical fault. There is an open circuit. | 1 | Powertrain |
| P0C3814 | Temperature sensor A of the DC/DC converter has an electrical fault. There is a short circuit to ground or an open circuit. | 1 | Powertrain |
| P0C381F | Temperature sensor A of the DC/DC converter has an electrical fault. There is a sporadic fault. | 1 | Powertrain |
| P0C3827 | Temperature sensor A of the DC/DC converter has an electrical fault. The signal change rate is above the permissible limit value. | 1 | Powertrain |
| P0C3828 | Temperature sensor A of the DC/DC converter has an electrical fault. The signal offset is outside the permissible range. | 1 | Powertrain |
| P0C3829 | Temperature sensor A of the DC/DC converter has an electrical fault. There is an invalid signal. | 1 | Powertrain |
| P0C382A | Temperature sensor A of the DC/DC converter has an electrical fault. There is no signal change. | 1 | Powertrain |
| P0C3898 | Temperature sensor A of the DC/DC converter has an electrical fault. The component or the system has overtemperature. | 1 | Powertrain |
| P0C389D | Temperature sensor A of the DC/DC converter has an electrical fault. The component or the system has undertemperature | 1 | Powertrain |
| P0C39 | DC/DC converter temperature sensor 'A' range/performance | 25 | Powertrain |
| P0C3900 | Temperature sensor Out of Range Low/High | 1 | Powertrain |
| P0C391F | DC/DC Converter Temperature Sensor 'A' Range/Performance There is a sporadic fault. | 1 | Powertrain |
| P0C3926 | DC/DC Converter Temperature Sensor 'A' Range/Performance The signal change rate is below the permissible limit value. | 1 | Powertrain |
| P0C3927 | DC/DC Converter Temperature Sensor 'A' Range/Performance The signal change rate is above the permissible limit value. | 1 | Powertrain |
| P0C3928 | Temperature sensor A of the DC/DC converter has a malfunction. Signal bias level out of range / Zero adjustment failure | 1 | Powertrain |
| P0C3962 | Temperature sensor A of the DC/DC converter has a malfunction. The signal comparison is faulty. | 1 | Powertrain |
| P0C3984 | Temperature sensor A of the DC/DC converter has a malfunction. There is a signal below the permissible limit value. | 1 | Powertrain |
| P0C3985 | Temperature sensor A of the DC/DC converter has a malfunction. There is a signal above the permissible limit value. | 1 | Powertrain |
| P0C3998 | Temperature sensor A of the DC/DC converter has a malfunction. The component or the system has overtemperature. | 1 | Powertrain |
| P0C3A | DC/DC converter temperature sensor 'A' low | 26 | Powertrain |
| P0C3A00 | Output FET temperatures Low | 1 | Powertrain |
| P0C3A02 | Temperature sensor A of the DC/DC converter has a short circuit to ground. There is a general signal fault. | 1 | Powertrain |
| P0C3B | DC/DC converter temperature sensor 'A' high | 26 | Powertrain |
| P0C3B00 | Output FET temperatures High | 1 | Powertrain |
| P0C3B01 | Temperature sensor A of the DC/DC converter has a short circuit to positive. There is a general electrical fault. | 1 | Powertrain |
| P0C3B15 | Temperature sensor A of the DC/DC converter has a short circuit to positive. There is a short circuit to positive or an open circuit. | 1 | Powertrain |
| P0C3C | DC/DC converter temperature sensor 'A' intermittent/erratic | 22 | Powertrain |
| P0C3D | DC/DC converter temperature sensor 'B' circuit | 23 | Powertrain |
| P0C3D12 | Temperature sensor B of the DC/DC converter has an electrical fault. There is a short circuit to positive | 1 | Powertrain |
| P0C3D98 | Temperature sensor B of the DC/DC converter has an electrical fault. The component or the system has overtemperature. | 1 | Powertrain |
| P0C3D9D | Temperature sensor B of the DC/DC converter has an electrical fault. The component or the system has undertemperature | 1 | Powertrain |
| P0C3E | DC/DC converter temperature sensor 'B' range/performance | 26 | Powertrain |
| P0C3F | DC/DC converter temperature sensor 'B' low | 25 | Powertrain |
| P0C40 | Sliding position sensor failure | 26 | Powertrain |
| P0C4015 | Temperature sensor B of the DC/DC converter has a short circuit to positive. There is a short circuit to positive or an open circuit. | 1 | Powertrain |
| P0C41 | Seat back angle sensor failure | 22 | Powertrain |
| P0C42 | Seat back film failure | 22 | Powertrain |
| P0C422A | The coolant temperature sensor in the hybrid/high-voltage battery module has an electrical fault. There is no signal change. | 1 | Powertrain |
| P0C4264 | The coolant temperature sensor in the hybrid/high-voltage battery module has an electrical fault. There is an implausible signal. | 1 | Powertrain |
| P0C43 | Seat cushion film failure | 24 | Powertrain |
| P0C4364 | The coolant temperature sensor in the hybrid/high-voltage battery module has a malfunction. There is an implausible signal. | 1 | Powertrain |
| P0C4384 | The coolant temperature sensor in the hybrid/high-voltage battery module has a malfunction. There is a signal below the permissible limit value. | 1 | Powertrain |
| P0C4385 | The coolant temperature sensor in the hybrid/high-voltage battery module has a malfunction. There is a signal above the permissible limit value. | 1 | Powertrain |
| P0C44 | Hybrid Battery Pack Coolant Temperature Sensor Circuit Low | 24 | Powertrain |
| P0C4400 | The coolant temperature sensor in the hybrid/high-voltage battery module has a short circuit to ground. | 1 | Powertrain |
| P0C4411 | The coolant temperature sensor in the high-voltage battery module has a short circuit to ground. | 1 | Powertrain |
| P0C45 | Hybrid Battery Pack Coolant Temperature Sensor Circuit High | 24 | Powertrain |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.