DTC P1628-62: Module Ignition Supply Input - Signal compare failure: Action
WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
- Refer to the electrical circuit diagrams and check the ignition signal circuit for short circuit to power. Repair the wiring harness as necessary