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 |
|---|---|---|---|
| U1140 | Valid except model 257 and model 290 | 15 | Network |
| U1141 | Valid except model 213, 238, 257, 290 | 13 | Network |
| U1142 | Loss of serial communications for class 2 devices | 13 | Network |
| U114287 | Communication with TCH front unit has a function failure. The message is missing. | 1 | Network |
| U1143 | Valid up to model year 2021 | 9 | Network |
| U114387 | Communication with TCH2 rear unit has a function failure. The message is missing. | 1 | Network |
| U1144 | Loss of Communications with PHN | 12 | Network |
| U114408 | Communication with the control unit 'Parking system' has a malfunction. There is a signal fault or the message is faulty. | 1 | Network |
| U114487 | Communication with the control unit 'Parking system' has a malfunction. Missing Message | 1 | Network |
| U114488 | Communication with the control unit 'Parking system' has a malfunction. Bus off | 1 | Network |
| U1145 | Loss Of NAV Communications | 10 | Network |
| U114583 | Communication with control unit 'KEYLESS GO' has a malfunction. CRC error. | 1 | Network |
| U114586 | Toggle bit from KG module failed. - signal invalid | 1 | Network |
| U114587 | Communication with KEYLESS GO has a malfunction. Missing message. | 1 | Network |
| U1146 | Loss of OnStar communication | 14 | Network |
| U114600 | Die Kommunikation mit Drive Unit hat Funktionsstörung | 1 | Network |
| U1147 | Loss of serial communications for class 2 devices | 14 | Network |
| U1148 | Loss of serial communications for class 2 devices | 12 | Network |
| U1149 | Loss of serial communications for class 2 devices | 10 | Network |
| U114987 | Communication with the rear axle steering CAN bus has a malfunction. The message is missing. | 1 | Network |
| U114988 | Communication with the rear axle steering CAN bus has a malfunction. Bus OFF | 1 | Network |
| U1150 | Communication failure with battery management system (BMS) | 17 | Network |
| U1151 | Loss of serial communications for class 2 devices | 17 | Network |
| U115287 | Communication with the garage door opener has a malfunction. Missing message. | 1 | Network |
| U115329 | Das Signal WprOutsdPkPosn_ST3 vom BC_F wird mit einem ungültigem Wert gesendet | 1 | Network |
| U115341 | Botschaften vom BC_F-Steuergerät zeigen einen Fehler im Botschaftszähler oder CRC-Fehler | 1 | Network |
| U115382 | Botschaften vom BC_F SG führen in der IDC zu einem kumulierten Fehler | 1 | Network |
| U115387 | Botschaft vom BC_F-Steuergerät (Scheibenwischer) wird zeitweise nicht empfangen | 1 | Network |
| U1153E0 | Das Signal TPM_IndLmp_On_Rq_ST3 wird mit einem ungültigem Wert empfangen | 1 | Network |
| U1153E1 | Botschaft vom BC_F SG wird zeitweise nicht empfangen | 1 | Network |
| U115482 | Communication with the upper control panel has a malfunction. Counter error. | 1 | Network |
| U115483 | Communication with the upper control panel has a malfunction. CRC error. | 1 | Network |
| U115486 | Communication with the upper control panel has a malfunction. Signal error. | 1 | Network |
| U115487 | Communication with the upper control panel has a malfunction. Missing message. | 2 | Network |
| U115586 | Communication with the lower control panel has a malfunction. Signal invalid. | 1 | Network |
| U115587 | Communication with the lower control panel has a malfunction. Missing message. | 1 | Network |
| U1156 | Loss of serial communications for class 2 devices | 11 | Network |
| U115687 | No connection to TGS | 1 | Network |
| U1159 | Loss of serial communications for class 2 devices | 11 | Network |
| U1160 | EV-ECU CAN timeout | 15 | Network |
| U116000 | Ein Buswachhalter wurde erkannt. | 1 | Network |
| U1162 | Vehicle distance alarm ECU is causing operation failure | 16 | Network |
| U116209 | Communication with tire pressure sensor 1 has a malfunction. There is a component fault. | 1 | Network |
| U1163 | Lost communication with front radar | 12 | Network |
| U116309 | Communication with tire pressure sensor 2 has a malfunction. There is a component fault. | 1 | Network |
| U1164 | Loss Of DIM Serial Data Communication | 14 | Network |
| U116409 | Communication with tire pressure sensor 3 has a malfunction. There is a component fault. | 1 | Network |
| U1165 | E-Call/TCU CAN timeout | 13 | Network |
| U116509 | Communication with tire pressure sensor 4 has a malfunction. There is a component fault. | 1 | Network |
| U1167 | Loss of serial communications for class 2 devices | 18 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.