DTC B14C3-15: Ignition Supply J - Circuit short to battery or open: Action

WARNING: This page is about a different car, the 2023 Jaguar F-Pace and 2022 Jaguar F-Pace. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: To validate the repair use the Jaguar Land Rover approved diagnostic equipment to perform the diagnostic routine - On Demand Self Test. If the repair is successful this DTC will no longer be set within the body control module

Install a new engine junction box extended ignition relay as necessary
Refer to the electrical circuit diagrams and check the engine junction box extended ignition relay circuit for short circuit to power, open circuit, high resistance. Repair the wiring harness or install as necessary