DTC P0505-27: Idle Control System - Signal rate of change above threshold: Action
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, 2016 Land Rover Range Rover, 2014 Land Rover Range Rover, and 2013 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- Check air filter is not blocked
- Check the intake air system is free from restrictions
- Check front end accessory drive belt and driven components for overload failure or seized
- Check power steering pump for overload, failed or seized component