ChassisC1218
CautionSeverity: Caution - get it checked when you can
Massage switch - passenger's
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 16
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | C1218 | Motor driver temperature threshold exceeded Brand | Chassis |
| Chery | C1218 | Speed signal lost Brand | Chassis |
| Daewoo | C1218 | No description available | Chassis |
| Daihatsu | C1218 | SMC2 solenoid abnormal Brand | Chassis |
| Geely | C1218 | Exceed motor drive temperature threshold Brand | Chassis |
| GM | C1218 | No description available | Chassis |
| Holden | C1218 | Electronic Brake Control Module High Temperature Brand | Chassis |
| Hyundai | C1218 | No description available | Chassis |
| Mitsubishi | C1218 | No description available | Chassis |
| Opel | C1218 | No description available | Chassis |
| Perodua | C1218 | SMC2 solenoid abnormal Brand | Chassis |
| Peugeot | C1218 | No description available | Chassis |
| Saab | C1218 | No description available | Chassis |
| Suzuki | C1218 | Pump Motor Short to Battery or Motor Ground Open/High Resistance Brand | Chassis |
| Toyota | C1218 | No description available | Chassis |
| Volkswagen | C1218 | Massage switch - passenger's 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 5
These 7-character codes are manufacturer-specific variants of C1218 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| Mercedes-Benz | C121800 | The steering angle sensor has a malfunction. Brand | Chassis |
| Mercedes-Benz | C121804 | Lenkradwinkelsensor Interner Fehler - System Internal Failures Brand | Chassis |
| Mercedes-Benz | C121822 | The steering angle sensor has a malfunction. The signal amplitude is greater than the maximum amplitude. Brand | Chassis |
| Mercedes-Benz | C121828 | Lenkradwinkelsensor Offsetfehler - signal bias level out of range / zero adjustment failure Brand | Chassis |
| Mercedes-Benz | C121829 | Lenkradwinkelsensor Signalfehler - signal invalid Brand | Chassis |
6Related codes
Browse Cxxx codes or C121xx codes.