DTC U300A-64: Ignition Switch - Signal plausibility failure: Action
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, 2016 Land Rover Range Rover, 2015 Land Rover Range Rover, and 2014 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- Check the security and integrity of the switched ignition supply circuit connectors. Rectify as required
- Refer to the appropriate system wiring diagram and check the switched ignition supply circuit to the control module for short circuit to ground, open circuit, high resistance. Repair circuit as required, clear the DTCs and retest