DTC U0402-08: Invalid Data Received from TCM - Bus signal/message failures: Action
WARNING: This page is about a different car, the 2015 Jaguar XK, 2014 Jaguar XK, 2013 Jaguar XK, and 2012 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
- Using the manufacturer approved diagnostic system, check transmission control module, for DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system, complete a CAN network integrity test
- Refer to the appropriate electrical circuit wiring diagrams and check high speed CAN bus circuit for short circuit, open circuit