Mercedes-Benz fault codes
20,291 codes · 1,724 vehicle records · 258 ECU records · 56,350 live-data parameters
Search only Mercedes-Benz codes
Codes 20,291
| Code | Description | Brands | System |
|---|---|---|---|
| U1111 | Lost communication (IDM) | 30 | Network |
| U1112 | Function restriction due to implausible message(s) | 30 | Network |
| U1113 | Valid except model 177 | 26 | Network |
| U111300 | THRIFT DRT failure | 2 | Network |
| U1114 | Inter-system CAN | 22 | Network |
| U1115 | CGW CAN timeout/Not equipped | 17 | Network |
| U1116 | KOS CAN timeout/Not equipped | 25 | Network |
| U1117 | Lost communication (ABS) | 25 | Network |
| U1118 | Communication failure with Built-in System Interface (BSI) | 23 | Network |
| U111800 | The traction system has detected implausible data 1. | 2 | Network |
| U111804 | The traction system has detected implausible data 1. There is an internal fault. | 1 | Network |
| U111809 | The traction system has detected implausible data 1. There is a component fault. | 1 | Network |
| U111844 | The traction system has detected implausible data 1. There is an error in the data memory. | 1 | Network |
| U111864 | The traction system has detected implausible data 1. There is an implausible signal. | 1 | Network |
| U1118EA | Receive of data not finished within defined time | 1 | Network |
| U1118EC | Failure is set when PRW functionality developed by 3rd party tries to access memory region outside of its allocated memory | 1 | Network |
| U1118FA | The traction system has detected implausible data 1. | 1 | Network |
| U1118FD | The traction system has detected implausible data 1. | 1 | Network |
| U1119 | Lost communication (multi display) | 15 | Network |
| U1119FA | The traction system has detected implausible data 2. | 1 | Network |
| U111A00 | Implausible data were received from the control unit 'Mercedes-Benz Intelligent Drive'. | 2 | Network |
| U111A05 | There is a fault in the application parameters. System Programming Failures. - System Programming Failures | 1 | Network |
| U111A24 | Das Signal DSM_EI_MIC_YawRate zeigt einen Fehler an | 1 | Network |
| U111A26 | Das Signale DLB_EI_MIC_DLB_Stat zeigt einen Fehler an | 1 | Network |
| U111A27 | Das Signal DSM_EI_MIC_FtWhlAngl zeigt einen Fehler an | 1 | Network |
| U111A29 | Das Signal MIC_AirTemp_SWM zeigt einen Fehler an. | 1 | Network |
| U111A2B | Das Signal DSM_EI_MIC_LngVehVel zeigt einen Fehler an | 1 | Network |
| U111A64 | The 'output velocity' could not be calculated with required quality | 1 | Network |
| U111A81 | Implausible data were received from the control unit Mercedes-Benz Intelligent Drive. Incorrect data were received. | 1 | Network |
| U111A83 | Protocol Error DAP_HAD_Stat | 1 | Network |
| U111A85 | The Yaw rate cannot be determined with the required quality | 1 | Network |
| U111A86 | Communication error IDC | 1 | Network |
| U111A87 | Timeout DAP_HAD_Stat | 1 | Network |
| U111ADF | Implausible data were received from the control unit Mercedes-Benz Intelligent Drive. Counter byte when corresponding SAE Code is used more than one time | 1 | Network |
| U111AE0 | Das Steuergerät ist nicht codiert. | 1 | Network |
| U111AFA | Vehicle parameter error | 1 | Network |
| U111AFB | Vehicle parameters changed | 1 | Network |
| U111AFC | Signal error and plausibility checks failed for IDC-ECU | 1 | Network |
| U111AFD | Implausible Data received from IDC (Mercedes-Benz Intelligent Drive) | 1 | Network |
| U111B00 | Communication with the control unit 'Mercedes-Benz Intelligent Drive' has a malfunction. | 1 | Network |
| U111B81 | Communication with the control unit 'Mercedes-Benz Intelligent Drive' has a malfunction. Incorrect data were received. | 1 | Network |
| U111B82 | Communication with control unit 'Mercedes Intelligent Drive' has a malfunction. Counter error. | 1 | Network |
| U111B83 | Communication with control unit 'Mercedes Intelligent Drive' has a malfunction. CRC error. | 1 | Network |
| U111B86 | Communication with control unit 'Mercedes Intelligent Drive' has a malfunction. Signal error. | 1 | Network |
| U111B87 | Timeout error IDC | 1 | Network |
| U111D00 | OBD relevant DTC in RBS. For detailed information read Fault Memory of RBS | 1 | Network |
| U1120 | Lost wheel distance message | 24 | Network |
| U112004 | The security module of the control unit has detected a communication error. There is an internal fault. | 1 | Network |
| U112041 | The security module of the control unit has detected a communication error. General checksum failure. | 1 | Network |
| U112081 | Time sync message invalid (IT-Security) | 1 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.