DTC P017B-85: Cylinder Head Temperature Sensor Circuit Range/Performance - Signal above allowable range: Action

WARNING: This page is about a different car, the 2018 Jaguar XF and 2017 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

Check cooling system for mechanical & fluid integrity
Check cooling fan system for mechanical integrity
Check thermostat system for mechanical integrity
Diagnosis of this DTC may require using the manufacturer approved diagnostic system check datalogger signals
- 0x051D Cylinder Head Temperature - °C
Refer to the appropriate system wiring diagrams and check the cylinder head temperature sensor circuit for short circuit to ground, short circuit to power, open circuit, high resistance
Inspect connectors for signs of water ingress, and pins for damage and/or corrosion
Check and install a new cylinder head temperature sensor as required
Refer to the relevant service information and check the engine cooling system to ensure the coolant condition, level and flow is correct
Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest