DTC B108B-23: Start Button Circuit A - Signal stuck low: Action

NOTE: To validate the repair firstly run the engine for two minutes, then use the Jaguar Land Rover approved diagnostic equipment to check this DTC is no longer set within the body control module

Check the operation of the stop/start switch. Install a new stop/start switch as necessary
Refer to the electrical circuit diagrams and check the stop/start switch signal 1 circuit for short circuit to ground. Repair the wiring harness as necessary