Brake Pedal Position Sensor B Circuit/Open

Common symptoms

What you'll notice

• Check and tighten any loose connections or wiring related to the brake pedal position sensor.
• Inspect the brake pedal position sensor for any signs of damage or wear, and replace if necessary.
• Test the brake pedal position sensor using a multimeter to ensure it is functioning correctly.
• Reset the vehicle's computer system by disconnecting the battery for a few minutes and then reconnecting it.
• If all else fails, consider replacing the brake pedal position sensor with a new one.

Common causes

Most likely first

1. Faulty brake pedal position sensor
2. Loose or disconnected wiring or connections related to the brake pedal position sensor
3. Faulty brake pedal position sensor circuit wiring harness
4. Malfunctioning brake pedal position sensor circuit relay
5. Faulty brake pedal position sensor circuit fuse

How to diagnose & fix

Work through it in order

1. Brake pedal feels spongy or soft
2. Brake lights stay illuminated even when the pedal is not pressed
3. Difficulty in engaging or disengaging the cruise control system
4. Engine may not start or crank
5. Sudden or unexpected activation of the brake lights while driving