Mercedes-Benz fault codes
20,291 codes · 1,724 vehicle records · 258 ECU records · 56,350 live-data parameters
Search only Mercedes-Benz codes
Codes 20,291
| Code | Description | Brands | System |
|---|---|---|---|
| U1C56F1 | HV-Battery - Condition that prevents precharge detected | 1 | Network |
| U1C65F0 | Low Confidence - BMS - HV battery over temperature condition detected | 1 | Network |
| U1C65F1 | HV-Battery - HV battery over temperature condition detected | 1 | Network |
| U1C66F0 | Low Confidence - BMS - HV battery thermal condition detected | 1 | Network |
| U1C66F1 | HV-Battery - HV battery thermal condition detected | 1 | Network |
| U1C67F0 | Low Confidence - BMS - HV battery internal communication error | 1 | Network |
| U1C67F1 | HV-Battery - HV battery internal communication error | 1 | Network |
| U1C68F0 | Low Confidence - BMS - HV battery internal communication error | 1 | Network |
| U1C68F1 | HV-Battery - HV battery internal communication error | 1 | Network |
| U1C69F0 | Low Confidence - BMS | 1 | Network |
| U1C69F1 | Low Confidence - BMS | 1 | Network |
| U1C6AF0 | Low Confidence - BMS - HV battery temperature sensor error detected | 1 | Network |
| U1C6AF1 | HV-Battery - HV battery temperature sensor error detected | 1 | Network |
| U1C6BF0 | Low Confidence - BMS - HV battery cell voltage sensor error detected | 1 | Network |
| U1C6BF1 | HV-Battery - HV battery cell voltage sensor error detected | 1 | Network |
| U1C6CF0 | Low Confidence - BMS - HV battery internal communication error | 1 | Network |
| U1C6CF1 | HV-Battery - HV battery internal communication error | 1 | Network |
| U1C6DF0 | Low Confidence - BMS | 1 | Network |
| U1C6DF1 | Low Confidence - BMS | 1 | Network |
| U1C6EF0 | Low Confidence - BMS - HV battery internal voltage sensor error detected | 1 | Network |
| U1C6EF1 | HV-Battery - HV battery internal voltage sensor error detected | 1 | Network |
| U1C6FF0 | Low Confidence - BMS | 1 | Network |
| U1C6FF1 | Low Confidence - BMS | 1 | Network |
| U1C70F0 | Low Confidence - BMS | 1 | Network |
| U1C70F1 | Low Confidence - BMS | 1 | Network |
| U1C7BF0 | HV-Battery - HV battery internal isolation breakdown detected | 1 | Network |
| U1C7BF1 | HV-Battery - HV battery internal isolation breakdown detected | 1 | Network |
| U1C84F1 | HV-Battery - HV battery ECU error detected | 1 | Network |
| U1C85F0 | Low Confidence - BMS | 1 | Network |
| U1C85F1 | Low Confidence - BMS | 1 | Network |
| U1C86F0 | HV-Battery - Contactors opened after ramp down | 1 | Network |
| U1C86F1 | Low Confidence - BMS - Contactors opened after ramp down | 1 | Network |
| U1C8CF1 | HV-Battery - HV battery current sensor problem detected | 1 | Network |
| U1C8DF1 | HV-Battery - HV battery 12V power supply problem detected | 1 | Network |
| U1D19F0 | Low Confidence - DI - Inverter over current condition detected | 1 | Network |
| U1D19F1 | Inverter/DriveUnit - Inverter over current condition detected | 1 | Network |
| U1D1AF0 | Low Confidence - DI - Inverter over current condition detected | 1 | Network |
| U1D1AF1 | Inverter/DriveUnit - Inverter over current condition detected | 1 | Network |
| U1D1BF0 | Low Confidence - DI - Inverter over current condition detected | 1 | Network |
| U1D1BF1 | Inverter/DriveUnit - Inverter over current condition detected | 1 | Network |
| U1DD0 | No description available | 1 | Network |
| U1DD000 | Insert Error text | 1 | Network |
| U1DD001 | Safety Controller FW upgrade error | 1 | Network |
| U1DD002 | NVM state inconsistent | 1 | Network |
| U1DD003 | Implausible measurements | 1 | Network |
| U1DD004 | HS1 failed | 1 | Network |
| U1DD005 | LS1 failed | 1 | Network |
| U1DD006 | ECU over temperature | 1 | Network |
| U1DD007 | Voltage measurement is not plausible | 1 | Network |
| U1DD008 | ECU Runtime Error | 1 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.