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 |
|---|---|---|---|
| U365A82 | Vehicle Communication Bus 'L' - E2E error for AC Temp related messages | 1 | Network |
| U365A86 | Vehicle Communication Bus 'L' - ACTempsens Occurrence | 1 | Network |
| U365A87 | Vehicle Communication Bus 'L' - Timeout with respect to AC related messages. | 1 | Network |
| U365B81 | Vehicle Communication Bus 'M' - Invalid error for DC Temp related messages | 1 | Network |
| U365B82 | Vehicle Communication Bus 'M' - E2E error for DC Temp related messages | 1 | Network |
| U365B83 | Vehicle Communication Bus 'M' - E2E error for DC Temp related messages | 1 | Network |
| U365B86 | Vehicle Communication Bus 'M'- DCTempsens Occurrence | 1 | Network |
| U365B87 | Vehicle Communication Bus 'M' - Timeout with respect to DC Temp related messages. | 1 | Network |
| U365C81 | Vehicle Communication Bus 'N' - LIN LED1 Occurrence | 1 | Network |
| U365C86 | Vehicle Communication Bus 'N' - LIN Invalid value for LED1 | 1 | Network |
| U365C87 | Vehicle Communication Bus 'N'- LIN Timeout for LED1 | 1 | Network |
| U365D81 | Vehicle Communication Bus 'O' - LIN LED2 Occurrence | 1 | Network |
| U365D86 | Vehicle Communication Bus 'O' - Invalid value for LED2 | 1 | Network |
| U365D87 | Vehicle Communication Bus 'O' - Timeout for LED2 | 1 | Network |
| U3691 | No description available | 1 | Network |
| U3692 | No description available | 1 | Network |
| U3693 | No description available | 1 | Network |
| U3DD500 | External mode request not plausible | 1 | Network |
| U3DD800 | Phase Overcurrent detected during standstill | 1 | Network |
| U3DF000 | HV lock status | 1 | Network |
| U3DF100 | General Vdd5 under voltage monitoring error. At least one Ls-ASIC report VDD5_ERR_UV bit set in error register 2 | 1 | Network |
| U3DF500 | Rotor temperature from model based on sensor less physical model 2 Stator temperature is implausible. | 1 | Network |
| U3DFC00 | UART communication failure during Idle(VDSS) mode request. | 1 | Network |
| U3E0100 | mechanical of clutch actuator not plausible | 1 | Network |
| U3E1C00 | frequency monitoring of latency fault check VDS (BIST8) over all Ls Asics | 1 | Network |
| U3E1E00 | frequency monitoring of latency fault check VDS (BIST8) over all Hs Asics | 1 | Network |
| U3E2000 | frequency monitoring of latency fault check VDS external circuit (BIST10) over all Ls Asics | 1 | Network |
| U3E2500 | Frequency monitoring of latency fault check VDSS upper threshold (BIST4) and VDSS lower threshold (BIST5) over all Asics | 1 | Network |
| U3E2B00 | frequency monitoring of latency fault check SCP Gate1-4 (BIST6) over all Ls Asics | 1 | Network |
| U3E2D00 | frequency monitoring of latency fault check SCP Gate1-4 (BIST6) over all Hs Asics | 1 | Network |
| U3E4500 | combined error for CAN and DCDC-GND loss | 1 | Network |
| U3E5B00 | Sensorless Control Mode request status | 1 | Network |
| U3E6C00 | Performance issue of cluth position sensor e.g. due to low supply voltage | 1 | Network |
| U3E7200 | Cluth actuator phase current at standstill of actuator diagnosis | 1 | Network |
| U3E7300 | Timeout error for CAN message PT4_VEPM_Rq_ST3 (contains energy request for 48V battery) | 1 | Network |
| U3E7400 | Actuator phase overcurrent by DS-ADC detected | 1 | Network |
| U3E7600 | Timeout Error CAN-Botschaft CPC_ENERGY_COM_Container1_ST3_PT4_PTCoor4_ST3 | 1 | Network |
| U3E7700 | Clutch actuator DC overcurrent detected | 1 | Network |
| U3E7800 | Overvoltage of B6 bridge supply voltage (12V) of the cluth actuator | 1 | Network |
| U3E7900 | Cluth actuator bridge driver overtemperature detected. | 1 | Network |
| U3E7A00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_DI_OdoSpeedometer_ST3 (contains odometer value) | 1 | Network |
| U3E7B00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_DIAG_Stat_ST3 (contains external tester present information) | 1 | Network |
| U3E7D00 | timeout Error for CAN message CPC_ENERGY_GW_Container1_ST3_Ign_Stat_ST3 | 1 | Network |
| U3E7F00 | No description available | 1 | Network |
| U3E8000 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_PT4_EngCoor_OBD2_ST3 (contains OBD relevant information from engine ECU like drive cycle status, IUMPR, CSERS status bits) | 1 | Network |
| U3E8B00 | CAN timeout-DFC für message PT4_DCDC_Conv1_Pr5_ST3 | 1 | Network |
| U3E8D00 | Checksum error for CAN message CPC_ENERGY_GW_Container1_ST3_DI_OdoSpeedometer_ST3 (contains odometer value) | 1 | Network |
| U3E8E00 | Sequence counter error for CAN message CPC_ENERGY_GW_Container1_ST3_DI_OdoSpeedometer_ST3 (contains odometer value) | 1 | Network |
| U3E9000 | RealTime Manipulation detection for Authenticated Boot | 1 | Network |
| U3E9100 | checksum Error for CAN message CPC_ENERGY_GW_Container1_ST3_Ign_Stat_ST3 | 1 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.