ChassisC003A
CautionSeverity: Caution - get it checked when you can
Right Rear Wheel Speed Sensor
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 · SAE J2012: the standard generic code list
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 27
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| BAIC Motor | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Mercedes-Benz | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| BYD | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Chery | C003A | RR Wheel Speed Sensor Brand | Chassis |
| Daewoo | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| DFFS | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| DFFX | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| DFXK | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| EOBD | C003A | Right rear wheel speed sensor Brand | Chassis |
| Geely | C003A | Rear Right Speed Sensor Brand | Chassis |
| GM | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Great Wall | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Hafei | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Holden | C003A | Front Wheel Speed Sensors Circuits Brand | Chassis |
| Honda | C003A | 62 (Right Rear Wheel Sensor Fault) (Radar Vision Unit) This fault code is caused by another fault and therefore no further diagnosis is required. Please diagnose other fault codes first, and then clear this fault code. Possible fault location and cause: Right rear wheel sensor fault Brand | Chassis |
| Hyundai | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Isuzu | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Land Rover | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Maserati | C003A | Right Rear Wheel Speed Sensor Incorrect Component Installed Brand | Chassis |
| Opel | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Peugeot | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Proton | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Saab | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| MG (SAIC) | C003A | Right Rear Wheel Speed Sensor Brand | Chassis |
| Tata | C003A | Right Rear Wheel Speed Sensor SAE | Chassis |
| Toyota | C003A | Right rear wheel speed sensor: (signal error) out of range, lost, noise, intermittent Brand | 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 12
These 7-character codes are manufacturer-specific variants of C003A and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | C003A00 | OBD relevant DTC in RBS. For detailed information read Fault Memory of RBS Brand | Chassis |
| Porsche | C003A00 | No description available | Chassis |
| Mercedes-Benz | C003A04 | The right rear wheel speed sensor has a malfunction. There is an internal fault. Brand | Chassis |
| Mercedes-Benz | C003A09 | The right rear wheel speed sensor has a malfunction. There is a component fault. Brand | Chassis |
| Mahindra | C003A12 | Rear Right Wheel Speed Sensor - Short to Battery Brand | Chassis |
| Mahindra | C003A14 | Rear Right Wheel Speed Sensor - Short to Ground or Open Brand | Chassis |
| Mahindra | C003A1C | Rear Right Wheel Speed Sensor Short to another WSS Brand | Chassis |
| Mercedes-Benz | C003A25 | The right rear wheel speed sensor has a malfunction. There is a faulty signal waveform. Brand | Chassis |
| Mercedes-Benz | C003A29 | The right rear wheel speed sensor has a malfunction. There is an invalid signal. Brand | Chassis |
| Mercedes-Benz | C003A4A | The right rear wheel speed sensor has a malfunction. The wrong component is installed. Brand | Chassis |
| Mahindra | C003A64 | Rear Right WSS Plausibility error Brand | Chassis |
| Mercedes-Benz | C003AE0 | No description available | Chassis |
6Related codes
Browse Cxxx codes or C003xx codes.