ChassisC1621
CautionSeverity: Caution - get it checked when you can
Speed abnormal 1
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 15
| Brand | Code | Description | System |
|---|---|---|---|
| BAIC Motor | C1621 | Speed abnormal 1 Brand | Chassis |
| Chery | C1621 | Battery voltage too high Brand | Chassis |
| Daihatsu | C1621 | Rear camera current fault Brand | Chassis |
| DFFS | C1621 | The electric power steering (EPS) status signal value of the lane keeping assist (LKA) function is out of range Brand | Chassis |
| Honda | C1621 | No description available | Chassis |
| Hyundai | C1621 | No description available | Chassis |
| Mitsubishi | C1621 | AWC actuator protection 2 Brand | Chassis |
| Perodua | C1621 | Rear camera current fault Brand | Chassis |
| Peugeot | C1621 | No description available | Chassis |
| Proton | C1621 | AWC actuator protection 2 Brand | Chassis |
| MG (SAIC) | C1621 | YRS misinstallation Brand | Chassis |
| Smart | C1621 | No description available | Chassis |
| Suzuki | C1621 | CAN Invalid Data From TCM Brand | Chassis |
| SWM Motor | C1621 | Battery voltage is too high Brand | Chassis |
| Toyota | C1621 | 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 4
These 7-character codes are manufacturer-specific variants of C1621 and may be reported by some scan tools.
| Brand | Code | Description | System |
|---|---|---|---|
| SsangYong | C162100 | CAN Communication: ECU Signal Fault Brand | Chassis |
| SsangYong | C162108 | CAN communication: ECU message error Brand | Chassis |
| SsangYong | C162181 | CAN communication: ECU signal error Brand | Chassis |
| SsangYong | C162186 | CAN communication: Engine Management System (EMS) signal error Brand | Chassis |
6Related codes
Browse Cxxx codes or C162xx codes.