DTC U0138-47: Lost Communication with All Terrain Control Module - Watchdog/safety Micro Controller failure: 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 check terrain optimization module for related DTCs and refer to the relevant DTC index
- Using the manufacturer approved diagnostic system complete a CAN network integrity test
- Refer to the appropriate system wiring diagrams and check the power and ground connections to the terrain optimization module
- Check CAN harness between engine control module and terrain optimization module. Repair as necessary