C1431 – Brake Pedal Load Sensing Switch On Stuck Malfunction

C1431 Possible Symptoms

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

C1431 Possible Causes

Faulty Brake Pedal Load Sensing Switch,Brake Pedal Load Sensing Switch harness is open or shorted,Brake Pedal Load Sensing Switch circuit poor electrical connection

C1431 Description

The Brake Pedal Load Sensing Switch turns ON when the brake pedal is depressed with a force exceeding a predetermined level. The Skid Control ECU uses this circuit to detect if the brake pedal is depressed or not. The Skid Control ECU monitors the Brake Pedal Load Sensing Switch. The Skid Control ECU sets the OBDII code when the Brake Pedal Load Sensing Switch is not to factory specifications.