C1139 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1139 – Wheel Speed Sensor Center Tone Ring Missing Tooth Fault


C1139 Possible Symptoms


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


C1139 Possible Causes


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


C1139 Description


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