DTC C1D00-86: Park Brake Apply Switch - Signal invalid: Action
- Check for any electric park brake actuator-related DTCs and refer to the relevant DTC index
- Refer to the appropriate system wiring diagrams and check the electric park brake switch circuits for short circuit to ground, short circuit to power, open circuit, high resistance. Repair circuit(s) as required
- Using the Jaguar Land Rover Approved Diagnostic Equipment, clear the DTC and retest. If the fault persists, check and install a new electric park brake switch as required