DTC B1102-12: Trailer Stop Lamp - Circuit short to battery: Action
WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To validate the repair use the Jaguar Land Rover approved diagnostic equipment to perform the routine - On Demand Self Test. If the repair is successful this DTC will no longer be logged. Then check the trailer stop lamp function with the engine running and use the Jaguar Land Rover approved diagnostic equipment to check that the DTC is no longer logged in the body control module.
- Firstly disconnect the trailer/lamp board, then using the Jaguar Land Rover approved diagnostic equipment perform the routine - On Demand Self Test. If the fault is still present refer to the electrical circuit diagrams and check the trailer stop lamp circuit for short circuit to power. Repair the wiring harness as necessary