C103D Code: Meaning, Causes, and Symptoms | OBD2 Codes

C103D – Rear Wheel Speed Sensor Signal Erratic Performance


C103D Possible Symptoms


Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)


C103D Possible Causes


Faulty Rear Wheel Speed Sensor,Rear Wheel Speed Sensor harness is open or shorted,Rear Wheel Speed Sensor circuit poor electrical connection


C103D Description


The Anti-Lock Brake System (ABS) Module monitors the Rear Wheel Speed Sensor. The ABS Module sets the OBDII code when the Rear Wheel Speed Sensor is not to factory specifications.