DTC U0242-87: Lost Communication With Headlamp Control Module "B" - Missing message: Action
- Refer to the appropriate system wiring diagrams and inspect the Headlamp Control Module power supply circuits for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness a necessary
- Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to the appropriate system wiring diagrams and inspect the SUB-CAN network for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary