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 |
|---|---|---|---|
| U1247E0 | Receive time-out, kein Datenempfang vom Master für eine bestimmte Zeitdauer. | 1 | Network |
| U1247E1 | Die Folgenummer von Slave an Master ist nicht in der Reihenfolge. | 1 | Network |
| U1247E4 | CRC Payload Error von Slave und Master. | 1 | Network |
| U1247E5 | Die Gre von das Countiner ide von Slave an Master ist nicht kompatibel. | 1 | Network |
| U1247E6 | Das Countiner ide von Slave an Master ist nicht definiert. | 1 | Network |
| U1247E8 | Software lockstep runtime error master to slave dectected on master | 1 | Network |
| U1247E9 | Software lockstep runtime error slave to master dectected on master | 1 | Network |
| U1247EA | Software lockstep end-to-end protection error dectected on master | 1 | Network |
| U1247EB | Anzahl der fehlgeschlagenen Transmission an Slave versucht. | 1 | Network |
| U1248 | Loss of serial communications for class 2 devices | 8 | Network |
| U124987 | Die Kommunikation mit dem Steuergerät 'Gewichtsklassifizierung Beifahrer' hat Funktionsstörung. Botschaft fehlt. | 1 | Network |
| U124A02 | Der LIN-Bus 'Ultraschallsensor 1' hat Funktionsstörung.Es liegt ein allgemeiner Signalfehler vor. | 1 | Network |
| U1253 | Loss of serial communications for class 2 devices | 10 | Network |
| U1254 | Loss of serial communications for class 2 devices | 8 | Network |
| U1255 | Class 2 Communication Malfunction | 10 | Network |
| U1256 | Testeri vastus puudub | 6 | Network |
| U1257 | Rear fresh air blower control module | 4 | Network |
| U1258 | Satellite Antenna Circuit | 10 | Network |
| U126A86 | Communication with the electrohydraulic controller unit 'Touchpad' has a malfunction. Signal invalid. | 1 | Network |
| U126A87 | Communication with the electrohydraulic controller unit 'Touchpad' has a malfunction. Missing message. | 1 | Network |
| U126C87 | V2X Interface Device communication problem on Lin | 1 | Network |
| U1297 | Linker zijruitontdooierdeurmotor | 6 | Network |
| U1356 | No description available | 4 | Network |
| U1400 | Alternator LIN network failure | 27 | Network |
| U1401 | Scope present in vehicle - Connect connector to COMAND controller unit | 33 | Network |
| U140142 | Das Signal PN14_SecSup_Det_ST3 oder PN14_SecSup_Stat_ST3 wird mit einem ungültigem Wert empfangen | 1 | Network |
| U140186 | The signal 'engine rpm' from control unit 'combustion engine' was not received. Signal Invalid | 1 | Network |
| U1402 | Immobilizer message error | 21 | Network |
| U1403 | Retrofit is not included in further wiring diagrams | 19 | Network |
| U1404 | Immobilizer not matching | 18 | Network |
| U1405 | Dynamic Range Error | 22 | Network |
| U1406 | Dynamic Range Error | 17 | Network |
| U1407 | Dynamic Range Error | 22 | Network |
| U140700 | Das FlexRay-Signal Min-Motormoment oder Max-Motormoment oder EngTrqCoastMin (Mildhybrid) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. | 2 | Network |
| U140786 | Implausible signal 'Engine torque' was received. Signal Invalid | 1 | Network |
| U1407FB | Das FlexRay-Signal EngTrqStatic (Statisches Motormoment) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. | 1 | Network |
| U1407FC | Das FlexRay-Signal EngTrq_Enbl_Rq_AS (Schnittstellenfehler im Motormomentenpfad Assistenzsysteme) vom ECM -SG (Motorsteuergerät) ist fehlerhaft. | 1 | Network |
| U1408 | Dynamic Range Error | 15 | Network |
| U140800 | Implausible Brake Light Switch signal received | 3 | Network |
| U1409 | Dynamic Range Error | 13 | Network |
| U140A | Terminal 30: open circuit; Open or short to ground | 3 | Network |
| U140B | No description available | 8 | Network |
| U140C | No description available | 8 | Network |
| U140D00 | Wheel speed sensor error | 1 | Network |
| U140D62 | Failed plausibilty check of Vehicle velocity and Wheel RPM | 1 | Network |
| U140D63 | Failed long term plausibilty check of Vehicle velocity and Wheel RPM | 1 | Network |
| U140D64 | Wheel speed to shaft speed signal implausible | 1 | Network |
| U140D85 | An implausible wheel speed signal was received. There is a signal above the permissible limit value. | 1 | Network |
| U140D86 | An implausible wheel speed signal was received. There is an incorrect signal. | 1 | Network |
| U140F | implausible engine variant data | 3 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.