DTC C1A04-64: Right Front Height Sensor - 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.

NOTE: If a new height sensor is installed or the height sensor fixings were loose or slackened, the following routine must be performed using the manufacturer approved diagnostic system: Calibrate Ride Height.

Refer to the appropriate system wiring diagrams and check the front right height sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness or install a new front right height sensor as necessary
Using the manufacturer approved diagnostic system, check the chassis control module for related DTCs and refer to the relevant DTC index