C1939 FORD – Brake Pressure Switch Input Circuit Failure

C1939 FORD Possible Symptoms

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

C1939 FORD Possible Causes

Faulty Brake Pressure Switch (BPS),Brake Pressure Switch (BPS) harness is open or shorted,Brake Pressure Switch (BPS) circuit poor electrical connection

C1939 FORD Description

The Anti-Lock Brake System (ABS) Module monitors the Brake Pressure Switch (BPS). The ABS Module sets the OBDII code when the Brake Pressure Switch is not to factory specifications.