DTC P188A-98: Differential Oil Temperature Too High/Too Low - Component or system over temperature: 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:
This DTC may be induced by excessive electric differential clutch operation due to prolonged off road or track driving.
- Refer to the relevant section of the service information and check the electric differential fluid level. Rectify any fluid leaks and add fluid as necessary
- Check the specification of the electric differential fluid. Rectify as necessary
- Refer to the appropriate system wiring diagrams and check the rear differential fluid temperature sensor signal circuit for high resistance. Repair the wiring harness or install a new rear differential fluid temperature sensor as necessary