Fault code lookup

ChassisC1254

Serious

Severity: Serious - have it checked soon

EPS ECU internal fault (related to APA)

17 brands affected · Description from Toyota data.

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

Safety: This code relates to the steering system. Power steering assistance may be reduced or fail.

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

  1. Faulty wheel speed sensor
  2. Damaged sensor ring or wiring
  3. Faulty ABS module
  4. Low brake fluid
  5. Wheel bearing damage

3Can I drive?

Serious · drive with care

If the steering feels heavy or unpredictable, stop safely and have the car recovered. Steering assistance can fail suddenly.

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 17

BrandCodeDescriptionSystem
DaewooC1254No description available Chassis
DaihatsuC1254Pressure sensor or SW abnormal BrandChassis
DFFSC1254EPS ECU internal fault BrandChassis
FordC1254No description available Chassis
GMC1254No description available Chassis
HoldenC1254Longitudinal Acceleration Sensor Performance BrandChassis
HyundaiC1254No description available Chassis
Land RoverC1254No description available Chassis
MaseratiC1254Vacuum Pump Control Circuit High BrandChassis
MazdaC1254No description available Chassis
OpelC1254No description available Chassis
PeroduaC1254Pressure sensor or SW abnormal BrandChassis
PeugeotC1254No description available Chassis
SaabC1254No description available Chassis
MG (SAIC)C1254Longitudinal Acceleration Performance BrandChassis
SuzukiC1254Abnormal Shutdown Detected BrandChassis
ToyotaC1254EPS ECU internal fault (related to APA) BrandChassis

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.

5Related codes

Browse Cxxx codes or C125xx codes.

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