DTC U0400-86: Invalid Data Received - Signal invalid: 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: This is not a vehicle harness issue or chassis control module issue. The data source module has sent signal counter information which is not correct.

Using the Jaguar Land Rover approved diagnostic equipment, check the snap shot data to determine the invalid data source control module. Check datalogger signal - Network Operating System ECU Local Signal Handle (0xD020). Check the relevant control for related DTCs and refer to the relevant DTC index