ChassisC0031
CautionSeverity: Caution - get it checked when you can
Left Front 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 28
| Brand | Code | Description | System |
|---|---|---|---|
| Ashok Leyland CV | C0031 | Rocker Arm Actuator. Actuator 1. Position Sensor. High Signal. Bank 2 Brand | Chassis |
| BAIC Motor | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Mercedes-Benz | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| BYD | C0031 | LF wh1 spd sen fail Brand | Chassis |
| Chery | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Daewoo | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| DFFS | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| DFFX | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| DFXK | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| EOBD | C0031 | Vasaku esiratta kiirusandur Brand | Chassis |
| Geely | C0031 | Front Left Speed Sensor Brand | Chassis |
| GM | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Great Wall | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Hafei | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Holden | C0031 | Left Front Wheel Speed Sensor Circuit Brand | Chassis |
| Honda | C0031 | 62 (Left Front Wheel Sensor Fault) (Radar Vision Unit) This fault code is caused by another fault and therefore no further diagnosis is required. Please diagnose the other fault codes first, and then clear this fault code. Possible fault location and cause: Left front wheel sensor fault Brand | Chassis |
| Hyundai | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Isuzu | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Land Rover | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Maserati | C0031 | Left Front Wheel Speed Sensor Incorrect Component Installed Brand | Chassis |
| Opel | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Peugeot | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Proton | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Saab | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| MG (SAIC) | C0031 | Left Front Wheel Speed Sensor Brand | Chassis |
| Subaru | C0031 | FR Hold Valve malfunction Brand | Chassis |
| Tata | C0031 | Left Front Wheel Speed Sensor SAE | Chassis |
| Toyota | C0031 | Left front 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 17
These 7-character codes are manufacturer-specific variants of C0031 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | C003100 | DFA configuration in System IC does not fit to software configuration. Brand | Chassis |
| Sprinter | C003100 | No description available | Chassis |
| Mercedes-Benz | C003104 | The left front wheel speed sensor has a malfunction. There is an internal fault. Brand | Chassis |
| Mercedes-Benz | C003108 | No description available | Chassis |
| Smart | C003108 | No description available | Chassis |
| Mercedes-Benz | C003109 | The left front wheel speed sensor has a malfunction. There is a component fault. Brand | Chassis |
| Mercedes-Benz | C003112 | Drehzahlfhler vorne links: Es liegt ein Kurzschluss nach Plus vor. Brand | Chassis |
| Mahindra | C003112 | Front Left Wheel Speed Sensor - Short to Battery Brand | Chassis |
| Mercedes-Benz | C003113 | Drehzahlfhler vorne links: Es liegt eine Unterbrechung vor Brand | Chassis |
| Mahindra | C003114 | Front Left Wheel Speed Sensor - Short to Ground or Open Brand | Chassis |
| Mahindra | C00311C | Front Left Wheel Speed Sensor Short to another WSS Brand | Chassis |
| Mercedes-Benz | C003125 | The left front wheel speed sensor has a malfunction. There is a faulty signal waveform. Brand | Chassis |
| Mercedes-Benz | C003129 | The left front wheel speed sensor has a malfunction. There is an invalid signal. Brand | Chassis |
| Mercedes-Benz | C00312F | Drehzahlfhler vorne links: Es liegt ein unregelmiges Signal vor. Brand | Chassis |
| Mercedes-Benz | C00314A | Detected wrong types of wheel speed sensor FL - Falsche Komponente installiert Brand | Chassis |
| Mahindra | C003164 | Front Left WSS Plausibility error Brand | Chassis |
| Mercedes-Benz | C0031E0 | No description available | Chassis |
6Related codes
Browse Cxxx codes or C003xx codes.