C0040 Code: Meaning, Causes, and Symptoms | OBD2 Codes
C0040 – Brake Pedal Switch ‘A’
C0040 Possible Symptoms
Anti-Lock Brake System (ABS) Warning Light ON,Engine Light ON (or Service Engine Soon Warning Light)
C0040 Possible Causes
Faulty Brake Pedal Switch ‘A’,Brake Pedal Switch ‘A’ harness is open or shorted,Brake Pedal Switch ‘A’ circuit poor electrical connection
C0040 Description
The Anti-Lock Brake System (ABS) Module monitors the Brake Pedal Switch ‘A’. The ABS Module sets the OBDII code when the Brake Pedal Switch ‘A’ is not to factory specifications.