DTC P0686-11: ECM/PCM Power Relay Control Circuit Low - Circuit short to ground: Action
WARNING: This page is about a different car, the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, and 2016 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to the appropriate system wiring diagram and check engine management system relay power and ground circuits for open circuit
- Refer to the appropriate system wiring diagram and check the engine management system relay 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 engine management system relay as required
- Using the Jaguar Land Rover approved diagnostic equipment, clear the DTCs and retest