DTC U0426-31: Invalid Data Received From Vehicle Immobilizer Control Module - No signal: 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.

Prioritized Checks to Perform
- Refer to the electrical circuit diagrams and check the FlexRay network circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
- Using the Jaguar Land Rover approved diagnostic equipment, run application - Service/Body Control Module (BCM): Immobilization
- Using the Jaguar Land Rover approved diagnostic equipment, check the body control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index