DTC B1A91-31: Speed/Position Sensor A - No signal: Action

NOTE: To validate the repair firstly run the engine for 30 seconds and operate the roof opening and closing several times, 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 connection to the roof blind master module and the roof blind slave module
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
Using the Jaguar Land Rover approved diagnostic equipment, perform the routine - Calibrate Sunroof (2039). Clear the Diagnostic Trouble Code(s) and retest. If the fault persists, install a new roof opening panel control module