C1020 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C1020 – Left Rear Wheel Speed Sensor Circuit
C1020 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C1020 Possible Causes
Faulty Left Rear Wheel Speed Sensor,Left Rear Wheel Speed Sensor harness is open or shorted,Left Rear Wheel Speed Sensor circuit poor electrical connection,Faulty Anti-Lock Brake System (ABS) Module
C1020 Description
The Anti-Lock Brake System (ABS) Module monitors the Left Rear Wheel Speed Sensor. The ABS Module sets the OBDII code when the Left Rear Wheel Speed Sensor is not to factory specifications.