C1821 Code: Meaning, Causes, and Symptoms | OBD2 Codes

C1821 – Electronic Parking Brake Motor Failure


C1821 Possible Symptoms


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


C1821 Possible Causes


Faulty Electronic Parking Brake Motor,Electronic Parking Brake Motor harness is open or shorted,Electronic Parking Brake Motor circuit poor electrical connection,Faulty Parking Brake Module


C1821 Description


The Parking Brake Module monitors the Electronic Parking Brake Motor. The Parking Brake Module sets the OBDII code when the Electronic Parking Brake Motor is not to factory specifications.