DTC U300A-62: Ignition Switch - Signal compare failure: Action
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. 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 ground, short circuit to power, open circuit, high resistance