C100A Code: Meaning, Causes, and Symptoms | OBD2 Codes

C100A – Left Front Wheel Speed Sensor Circuit


C100A Possible Symptoms


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


C100A Possible Causes


Faulty Left Front Wheel Speed Sensor,Left Front Wheel Speed Sensor harness is open or shorted,Left Front Wheel Speed Sensor circuit poor electrical connection,Faulty Anti-Lock Brake System (ABS) Module


C100A Description


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