DTC U0402-83: Invalid Data Received from TCM - Value of signal protection calculation incorrect: Action
WARNING: This page is about a different car, the 2015 Land Rover LR2, 2014 Land Rover LR2, and 2013 Land Rover LR2. However, it is still accessible from the selected car via links, so may be relevant.
- Using the manufacturer approved diagnostic system carry out a network integrity test
- Refer to the appropriate system wiring diagrams and check CAN circuits. Repair wiring harness as required
- Using the manufacturer approved diagnostic system check engine control module for related DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system check transmission control module for related DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system check and install latest relevant level of software to the transmission control module