U0402-41: Invalid Data Received from TCM - General checksum failure: Action

WARNING: This page is about a different car, the 2015 Jaguar XF, 2014 Jaguar XF, and 2013 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

Check transmission control module for related DTCs and refer to relevant DTC index
Using the Jaguar Land Rover approved diagnostic equipment, complete a CAN network integrity test. Refer to applicable SYSTEM WIRING DIAGRAM(S) and check CAN circuits if required. Repair harness as required