DTC B1B56-87: Sunroof Module - Missing message: Action

NOTE: To validate the repair firstly run the engine for 30 seconds and check the roof opening panel function, then use the Jaguar Land Rover approved diagnostic equipment to check this Diagnostic Trouble Code(s) is no longer set within the body control module

Refer to the electrical circuit diagrams and check the front roof opening panel LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the approved Jaguar Land Rover approved diagnostic equipment, clear the Diagnostic Trouble Code(s)
- Try to perform 3 full open/close cycles of the roof opening panel
If the fault persists, install a new opening panel control module