DTC B1C43-23: Master Interior Lamp Switch Stuck - Signal stuck low: Action
WARNING: This page is about a different car, the 2016 Land Rover LR4, 2015 Land Rover LR4, and 2014 Land Rover LR4. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
This DTC will set if the switch is active for more than 60 seconds
- Refer to the appropriate system wiring diagrams and check the interior lamp switch circuit for short circuit to ground
- Test the operation of the interior lamp switch