DTC P0504-62: Brake Switch "A"/"B" Correlation - Signal compare failure: Action
WARNING: This page is about a different variant/trim than selected.
- Vehicle Conditions to enable DTC Logging strategy
- Engine running
- Accelerator pedal NOT pressed
- Brake pedal pressed to over 50bar for longer than 2 seconds
- Prioritised Checks to Perform
- Check anti-lock brake system control module for vehicle speed related DTCs and refer to relevant DTC index
- Check brake pedal switch for correct adjustment
- Brake pedal switch circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
- Check and install a new brake pedal switch as required
- Start the engine and press the brake pedal, using maximum travel for more than 1 second, taking care not to press the accelerator pedal at the same time
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest