DTC B1B56-87: Sunroof Module - Missing message: Action
NOTE:
To validate the repair run the engine for at least 30 seconds and check the sunroof function, then use the Jaguar Land Rover approved diagnostic equipment to check this DTC is no longer logged within the body control module
- Refer to the electrical circuit diagrams and test the roof opening panel control module power and ground circuits for open circuit, high resistance
- Refer to the electrical circuit diagrams and test the LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance