DTC C1A20-64: Pressure Increase Too Slow When Filling Reservoir - Signal plausibility failure: 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.
- Using the manufacturer approved diagnostic system, test the operation of the suspension air supply unit (vehicle ride height interface)
- Refer to the relevant service information and test the air suspension system for air leaks
- Check the air suspension intake filter for blockages/restrictions
- Using the manufacturer approved diagnostic system, test the operation of the corner valves (vehicle ride height interface)