What does code C003A mean?

Q: What does code C003A mean?

Right Rear Wheel Speed Sensor. C003A indicates that the anti-lock braking system (ABS) control module has detected an abnormal signal from the right rear wheel speed sensor circuit. The module compares this signal with the other three wheel speed sensors and sets the code when the right rear signal is missing, erratic, or implausible during a self-test or while the vehicle is moving.

DTC codes / C00xx · Brakes, steering and suspension / C003A

C003ARight Rear Wheel Speed Sensor

C003A indicates that the anti-lock braking system (ABS) control module has detected an abnormal signal from the right rear wheel speed sensor circuit. The module compares this signal with the other three wheel speed sensors and sets the code when the right rear signal is missing, erratic, or implausible during a self-test or while the vehicle is moving.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaBrakes, steering and suspension

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.