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 |
|---|---|---|---|
| U3F9500 | General ASIC error. At least one Ls-Side report bit ASIC ERR bit set in error register | 1 | Network |
| U3F9600 | General ASIC error. At least one Hs-Side report bit ASIC ERR bit set in error register | 1 | Network |
| U3F9A00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_CPC_PT4_SubNWs_GW_SigR1_ST3 (CPC Signal routings to PT Sub Networks) | 1 | Network |
| U3F9B00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_DIAG_Stat_ST3 (Actv Line state Tester pres) | 1 | Network |
| U3F9C00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_PN14_Master_Stat1_ST3 (Powernetwork 12V master state) | 1 | Network |
| U3F9D00 | Timeout error for CAN message CPC_ENERGY_GW_Container1_ST3_PT4_EngCoor_OBD2_ST3 (PT4 engine Coor OBD2 ST3) | 1 | Network |
| U3F9E00 | plausibilisation of T15-signal | 1 | Network |
| U3F9F00 | heater current diagnosis | 1 | Network |
| U3FA600 | Diagnosis of short to ground (out of low range) of temperature signal(s) which is located between master path 48V side S9 and slave path 48V side S9 | 1 | Network |
| U3FA700 | Diagnosis of short to battery (out of high range) of temperature signal(s) which is located between master path LV side S9 and slave path LV side S9 | 1 | Network |
| U3FB000 | Diagnosis of current control in forward mode | 1 | Network |
| U3FB300 | coolant intake rotor temperature short circuit to ground | 1 | Network |
| U3FB400 | coolant intake rotor temperature during short circuit to battery detected | 1 | Network |
| U3FCA00 | UART communication failure during Electric machine capacitance status monitoring. | 1 | Network |
| U3FCD00 | Check of Hw signal for reporting, that emergency supply for the ECU is available | 1 | Network |
| U3FCF00 | Dlc Error DFC for the frame ZEVOBDCoor_ST3 | 1 | Network |
| U3FD700 | Frequency monitoring of latency fault check Vdd5v Mon (BIST9) over all Asics | 1 | Network |
| U3FD800 | frequency monitoring of latency fault check VDS external circuit (BIST10) over all Hs Asics | 1 | Network |
| U3FDB00 | Secondary supply voltage under/overvoltage error at LDO_VCC of the HighSide ASICs. At least one HighSide ASIC report either LDO_VCC_UV/OV_ERR bit in error register | 1 | Network |
| U3FDF00 | Rotor position Cos or Sin signal out of range detected in the monitoring SW | 1 | Network |
| U3FE800 | Coolant temperature plausibility check | 1 | Network |
| U3FF500 | Coolant temperature is plausible | 1 | Network |
| U3FFF10 | Invalid Certificate Chain. | 1 | Network |
| U3FFF12 | No description available | 2 | Network |
| U3FFFEB | No description available | 1 | Network |
| U3FFFFE | Service: For Service not relevant: DTC_DET_ReportError or SMM_OneRequestsInit | 1 | Network |
| U3FFFFF | No description available | 1 | Network |
| U4242 | No description available | 3 | Network |
| U5015 | Multifunction steering wheel button group, signal | 3 | Network |
| U5033 | Engine diagnosis indicator lamp, actuation | 3 | Network |
| U5066 | Instrument cluster, message | 3 | Network |
| U5183 | Brake lights, request | 3 | Network |
| U5210 | Synchronization, signal | 3 | Network |
| U5242 | No description available | 3 | Network |
| U5362 | Parking brake, status | 3 | Network |
| U6242 | No description available | 3 | Network |
| U7683 | No description available | 3 | Network |
| U7746 | No description available | 3 | Network |
| U7763 | No description available | 3 | Network |
| UBFA1 | No description available | 2 | Network |
| UBFA2 | No description available | 2 | Network |
Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.