DTC P1628-62: Module Ignition Supply Input - Signal compare failure: Action
WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport, 2017 Land Rover Discovery Sport, 2016 Land Rover Discovery Sport, and 2015 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to the appropriate system wiring diagram and check the all wheel drive control module ignition circuit for short circuit to ground, short circuit to power, open circuit, high resistance
- Check both module connectors for sign of water ingress and replace as required
- If no water ingress is detected, check the central junction box for related DTCs and refer to the relevant DTC index
- If no related DTCs are present, using the Jaguar Land Rover approved diagnostic equipment, reconfigure the all wheel drive control module with the latest level software. Clear DTCs, cycle ignition and retest