DTC C1A20-64: Pressure Increase Too Slow When Filling Reservoir - 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 gallery pipes and reservoir pipes for leaks, correct routing and installation. Check the integrity of the air reservoir. Repair/renew as required, clear the DTCs and retest
- Refer to the Jaguar Land Rover Approved Diagnostic Equipment for corner, reservoir and exhaust valve checks. Check the corner valve for leaks. Repair/renew as required, clear the DTCs and retest
- Check the operation of the air suspension air supply unit. Repair or replace as required, clear the DTCs and retest
- Check the air suspension air supply unit intake filter, intake pipe and silencer for blockages/restrictions. Repair as required, clear the DTCs and retest