ChassisC100B
CautionSeverity: Caution - get it checked when you can
Motor Drive Current
Key terms: ABS: anti-lock braking, which stops the wheels locking · Stability control: helps stop the car skidding · Wheel speed sensor: measures how fast each wheel turns
1What it means in plain English
A chassis system has a fault, usually ABS, traction control or stability control, but some makes use this range for airbags, electric power steering or park brakes.
2Common causes
- Faulty wheel speed sensor
- Damaged sensor ring or wiring
- Faulty ABS module
- Low brake fluid
- Wheel bearing damage
3Can I drive?
If the code names an airbag or SRS system, the airbag may not deploy in a crash: have it diagnosed promptly. If it names electric power steering, the assist may fail and the steering can become heavy: stop safely if that happens. If it names the brakes or park brake, have it checked before driving when braking feels abnormal. Otherwise ABS and stability control may be disabled: drive carefully, especially in wet conditions, and have it checked soon.
This page gives general information. It is not professional advice. For a definite diagnosis and a repair quote, ask a qualified mechanic to inspect the car.
4Brand data 14
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | C100B | Control unit fault Brand | Chassis |
| BYD | C100B | ECU controller unit fault Brand | Chassis |
| Daewoo | C100B | No description available | Chassis |
| Geely | C100B | Control unit malfunction Brand | Chassis |
| GM | C100B | No description available | Chassis |
| Great Wall | C100B | ECU start abnormally Brand | Chassis |
| Holden | C100B | Parking Assist Rear Sensor Left Corner Circuit Brand | Chassis |
| Isuzu | C100B | No description available | Chassis |
| Land Rover | C100B | Motor Drive Current Brand | Chassis |
| Mahindra | C100B | Over battery voltage failure (#53) Brand | Chassis |
| Maserati | C100B | No description available | Chassis |
| Opel | C100B | No description available | Chassis |
| Peugeot | C100B | No description available | Chassis |
| Saab | C100B | No description available | Chassis |
Legend: SAE is the generic J2012 description; Brand is text taken from that manufacturer’s data. Manufacturer rows keep the wording and language of the source data, and non-English text is tagged so screen readers pronounce it correctly.
5Extended variant codes 31
These 7-character codes are manufacturer-specific variants of C100B and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | C100B00 | The electric parking brake has a malfunction Brand | Chassis |
| Mercedes-Benz | C100B04 | No description available | Chassis |
| Volkswagen | C100B07 | Fault Drive, parking brake right mechanical fault Brand | Chassis |
| Mercedes-Benz | C100B08 | No description available | Chassis |
| Mercedes-Benz | C100B09 | No description available | Chassis |
| Mercedes-Benz | C100B16 | No description available | Chassis |
| Mercedes-Benz | C100B17 | No description available | Chassis |
| Mercedes-Benz | C100B19 | The electric parking brake has a malfunction. The limit value for current has been exceeded. Brand | Chassis |
| Mercedes-Benz | C100B1C | The electric parking brake has a malfunction. The voltage value is outside the permissible range. Brand | Chassis |
| Mercedes-Benz | C100B42 | IPB EEPROM Failure - Writing state to EEPROM not possible - Allgemeiner Speicherfehler Brand | Chassis |
| Mercedes-Benz | C100B43 | IPB EEPROM Failure - Redundant data invalid - special memory failure Brand | Chassis |
| Mercedes-Benz | C100B44 | No description available | Chassis |
| Mercedes-Benz | C100B46 | The electric parking brake has a malfunction. There is an error in the calibration or parameterization memory. Brand | Chassis |
| Mercedes-Benz | C100B47 | The electric parking brake has a malfunction. There is a runtime error. Brand | Chassis |
| Mercedes-Benz | C100B49 | The electric parking brake has a malfunction. There is an internal electrical fault. Brand | Chassis |
| Mercedes-Benz | C100B52 | The electric parking brake has a malfunction. The component has not been put into operation. Brand | Chassis |
| Mercedes-Benz | C100B56 | EPB Variant code. PbcFaultState_20\SYS_VEHCONFIG. Brand | Chassis |
| Mercedes-Benz | C100B68 | No description available | Chassis |
| Mercedes-Benz | C100B74 | No description available | Chassis |
| Mercedes-Benz | C100B77 | The electric parking brake has a malfunction. The commanded position cannot be reached. Brand | Chassis |
| Mercedes-Benz | C100B84 | No description available | Chassis |
| Mercedes-Benz | C100B91 | The electric parking brake has a malfunction. The parameter is outside the permissible range. Brand | Chassis |
| Mercedes-Benz | C100B94 | SSK can request park apply from EPB In case of request more then 5 kph event is entered. EventAPB Brand | Chassis |
| Mercedes-Benz | C100B96 | The electric parking brake has a malfunction. Component Internal Failure Brand | Chassis |
| Mercedes-Benz | C100B98 | The electric parking brake has a malfunction. The component or the system has overtemperature. Brand | Chassis |
| Mercedes-Benz | C100BE3 | APB ASIC ADC Counter mismatch detected Brand | Chassis |
| Mercedes-Benz | C100BE4 | APB ASIC has a charge pump failure. Brand | Chassis |
| Mercedes-Benz | C100BE5 | No description available | Chassis |
| Mercedes-Benz | C100BFA | The electric parking brake has a malfunction. Brand | Chassis |
| Mercedes-Benz | C100BFB | The electric parking brake has a malfunction. Brand | Chassis |
| Mercedes-Benz | C100BFC | The electric parking brake has a malfunction. Brand | Chassis |
6Related codes
Browse Cxxx codes or C100xx codes.