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 |
|---|---|---|---|
| C01D400 | Scheduled BIST test not correct (BIST continuity) | 1 | Chassis |
| C01D500 | Data transmission faulty (response from SPI handler) | 1 | Chassis |
| C01D600 | Scheduled data transmission not served. | 1 | Chassis |
| C01D700 | Bauteil 'A7/3 (Hydraulikeinheit Traktionssystem)' prfen. | 1 | Chassis |
| C01D900 | Timeout of BIST response from Algorithm Server | 1 | Chassis |
| C01DA00 | BIST signatures different, CPU fault on AS or SS | 1 | Chassis |
| C01E100 | Can RAM checkpattern test failure | 1 | Chassis |
| C01E300 | RAM checkpattern test failure | 1 | Chassis |
| C01E400 | RAM adressing test failure | 1 | Chassis |
| C01EB00 | Flash Bootloader ROM Check | 1 | Chassis |
| C01F000 | Elektronisches Steuergeraet (ECU) defekt (Softwareversion vom Elektronischen Steuergeraet (ECU) entspricht Softwareversion vom Entwicklungssteuergeraet). | 1 | Chassis |
| C020F00 | VR short to UZ detected in cvrt | 1 | Chassis |
| C021000 | VR Stuck On, Relais does not turn off during FSA Test | 1 | Chassis |
| C023100 | VR off, UVR is too low (compared to UZ) FSA Test, ValveMonitor - Fuse defect | 1 | Chassis |
| C024400 | AvFl defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C024500 | PWM deviation at AvFl detected. | 2 | Chassis |
| C024600 | Outlet valve front left defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C025000 | Medium or high ohmic short circuit of UVR or valve to Gnd detected by cvrt | 1 | Chassis |
| C025100 | Shortcut between valves or defective coil | 1 | Chassis |
| C025400 | AvFr defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C025500 | PWM deviation at AvFr detected. | 1 | Chassis |
| C025600 | Outlet valve front right defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C026000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C026100 | Shortcut between valves or defective coil | 1 | Chassis |
| C026400 | AvRl defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C026500 | PWM deviation at AvRl detected. | 1 | Chassis |
| C026600 | Outlet valve rear left defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C027000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C027100 | Shortcut between valves or defective coil | 1 | Chassis |
| C027400 | AvRr defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C027500 | PWM deviation at AvRr detected. | 1 | Chassis |
| C027600 | Outlet valve rear right defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C028000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C028100 | Shortcut between valves or defective coil | 1 | Chassis |
| C028400 | EvFl defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C028600 | PWM deviation at EvFl detected. | 1 | Chassis |
| C028700 | Inlet valve front left defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C028900 | Failure detection in USV2 FreeWheeling part. | 1 | Chassis |
| C029000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C029400 | EvFr defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C029600 | PWM deviation at EvFr detected. | 1 | Chassis |
| C029700 | Inlet valve front right defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C029800 | Failure detection in EvFr FreeWheeling part. | 1 | Chassis |
| C02A000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C02A400 | EvRl defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
| C02A600 | PWM deviation at EvRl detected. | 1 | Chassis |
| C02A700 | Inlet valve rear left defect due to leakage current via low ohmic side circuit. | 1 | Chassis |
| C02A800 | Failure detection in EvRl FreeWheeling part. | 1 | Chassis |
| C02B000 | The internal Valve-Driver-ASIC register is not matching with the current actuation during the ValveActuationRegisterTest. | 1 | Chassis |
| C02B400 | EvRr defect due to Valve-Driver-ASIC Qx-Feedback. | 1 | Chassis |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.