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 |
|---|---|---|---|
| U05B59A | Implausible data were received from the outer left front radar sensor. The operating conditions for the component or the system are not satisfied. | 1 | Network |
| U05B5E0 | Zeitsynchronisation des Radarsensors MMR_FL meldet Fehler. | 1 | Network |
| U05B5E1 | Alignment des Radarensors MMR_FL noch nicht vollständig durchgeführt | 1 | Network |
| U05B5E2 | Botschaften vom MMR_FL-Steuergerät sind unplausibel oder zeigen einen Fehlerstatus an | 1 | Network |
| U05B629 | Botschaften vom MMR_FR SG werden mit ungültigem Wert oder Fehler gesendet | 1 | Network |
| U05B641 | Botschaften vom MMR_FR-Steuergerät zeigen einen Fehler im Botschaftszähler oder CRC-Fehler | 1 | Network |
| U05B671 | Implausible data were received from the outer right front radar sensor. The actuator is blocked. | 1 | Network |
| U05B68F | Botschaft vom MMR_FR SG wird mit zu altem Zeitstempel empfangen | 1 | Network |
| U05B696 | IDC has detected an MMR interference event (interference threshold exceeded for HAD) | 1 | Network |
| U05B69A | Implausible data were received from the outer right front radar sensor. The operating conditions for the component or the system are not satisfied. | 1 | Network |
| U05B6E0 | Zeitsynchronisation des Radarsensors MMR_FR meldet Fehler. | 1 | Network |
| U05B6E1 | Alignment des Radarensors MMR_FR noch nicht vollständig durchgeführt | 1 | Network |
| U05B6E2 | Botschaften vom MMR_FR-Steuergerät sind unplausibel oder zeigen einen Fehlerstatus an | 1 | Network |
| U05B729 | Botschaften vom MMR_RL-Steuergerät werden mit ungültigem Wert oder Fehler gesendet | 1 | Network |
| U05B741 | Botschaften vom MMR_RL-Steuergerät zeigen einen Fehler im Botschaftszähler oder CRC-Fehler | 1 | Network |
| U05B771 | Implausible data were received from the outer left rear radar sensor. The actuator is blocked. | 1 | Network |
| U05B79A | Implausible data were received from the outer left rear radar sensor. The operating conditions for the component or the system are not satisfied. | 1 | Network |
| U05B7E1 | Alignment des Radarensors MMR_RL noch nicht vollständig durchgeführt | 1 | Network |
| U05B7E2 | Botschaften vom MMR_RL-Steuergerät sind unplausibel oder zeigen einen Fehlerstatus an | 1 | Network |
| U05B800 | Protocol Error MMR_RR | 1 | Network |
| U05B829 | Botschaften vom MMR_RR-Steuergerät werden mit ungültigem Wert oder mit Fehler gesendet | 1 | Network |
| U05B841 | Botschaft vom MMR_RR-Steuergerät zeigen einen Fehler im Botschaftszähler oder CRC-Fehler | 1 | Network |
| U05B871 | Implausible data were received from the outer right rear radar sensor. The actuator is blocked. | 1 | Network |
| U05B89A | Implausible data were received from the outer right rear radar sensor. The operating conditions for the component or the system are not satisfied. | 1 | Network |
| U05B8E1 | Alignment des Radarensors MMR_RR noch nicht vollständig durchgeführt | 1 | Network |
| U05B8E2 | Botschaften vom MMR_RR-Steuergerät sind unplausibel oder zeigen einen Fehlerstatus an | 1 | Network |
| U060011 | Communication with engine oil pressure sensor 1 has a malfunction. There is a short circuit to ground. | 1 | Network |
| U060015 | Communication with engine oil pressure sensor 1 has a malfunction. There is a short circuit to positive or an open circuit. | 1 | Network |
| U060B11 | Communication with boost pressure sensor 1 has a malfunction. There is a short circuit to ground. | 1 | Network |
| U060B15 | Communication with boost pressure sensor 1 has a malfunction. There is a short circuit to positive or an open circuit. | 1 | Network |
| U060C11 | Communication with boost pressure sensor 2 has a malfunction. There is a short circuit to ground. | 1 | Network |
| U060C12 | Communication with boost pressure sensor 2 has a malfunction. There is a short circuit to positive. | 1 | Network |
| U060CEE | There is an internal control unit fault in the central processing unit.UART Communication error | 1 | Network |
| U061111 | Communication with intake air temperature sensor 1 (cylinder bank 1) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U061112 | Communication with intake air temperature sensor 1 (cylinder bank 1) has a malfunction. There is a short circuit to positive. | 1 | Network |
| U061211 | Communication with intake air temperature sensor 1 (cylinder bank 2) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U061212 | Communication with intake air temperature sensor 1 (cylinder bank 2) has a malfunction. There is a short circuit to positive. | 1 | Network |
| U062011 | Communication with exhaust gas temperature sensor 2 (cylinder bank 1) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U062015 | Communication with exhaust gas temperature sensor 2 (cylinder bank 1) has a malfunction. There is a short circuit to positive or an open circuit. | 1 | Network |
| U062211 | Communication with exhaust gas temperature sensor 2 (cylinder bank 2) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U062215 | Communication with exhaust gas temperature sensor 2 (cylinder bank 2) has a malfunction. There is a short circuit to positive or an open circuit. | 1 | Network |
| U0628 | Lost communication with A/C refrigerant pressure sensor 'B' | 5 | Network |
| U064A | Lost communication with Hybrid/EV battery pack current sensor 'A' | 4 | Network |
| U064B | Lost communication with Hybrid/EV battery pack current sensor 'B' | 4 | Network |
| U0673 | Lost communication with ion sense module | 4 | Network |
| U068411 | Communication with temperature sensor 1 'Catalytic converter' (cylinder bank 1) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U068412 | Communication with temperature sensor 1 'Catalytic converter' (cylinder bank 1) has a malfunction. There is a short circuit to positive. | 1 | Network |
| U068611 | Communication with temperature sensor 1 'Catalytic converter' (cylinder bank 2) has a malfunction. There is a short circuit to ground. | 1 | Network |
| U068612 | Communication with temperature sensor 1 'Catalytic converter' (cylinder bank 2) has a malfunction. There is a short circuit to positive. | 1 | Network |
| U069887 | Communication with coolant pump 2 of the low-temperature circuit has a malfunction. The message is missing. | 1 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.