DTC B1491-11: Ignition Supply A - Circuit short to ground: Action

WARNING: This page is about a different car, the 2021 Land Rover Range Rover and 2020 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

After making sure any faults have been repaired, inspect if DTC U1000-00 is stored in the BCM . If yes, using the Jaguar Land Rover approved diagnostic equipment, run the application 'Ignition cycle counter reset' from ECU Diagnostics - Body Control Module (BCM) - ECU Functions. The application re-enables the output and allows successful validation of the repair using the recommended method
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 set within the body control module

Refer to the appropriate system wiring diagrams and check the ignition 1 power circuit for short circuit to ground. Repair the wiring harness as necessary