DTC U1A4B-47: Control Module Processor B - Watchdog/safety microcontroller failure: Action

WARNING: This page is about a different car, the 2018 Land Rover Discovery and 2017 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.

Using Jaguar Land Rover approved diagnostic equipment, check the DTC error count. Refer to the TCCM DTC Error Count Pinpoint Test instructions in the relevant Diagnosis and Testing Section For additional information, refer to: DIAGNOSTICS (307-01 Automatic Transmission/Transaxle, Diagnosis and Testing).