DTC B100D-96: Column Lock Authorization - Component Internal 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.

NOTE: Prior to clearing this DTC, perform routine - Vehicle Reset.

Turn the steering wheel to ensure that the electric steering column lock mechanism is free to move. Using the manufacturer approved diagnostic system, clear the DTCs and retest
Using the manufacturer approved diagnostic system, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the high speed CAN bus (body) circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary
Using the manufacturer approved diagnostic system, clear the DTCs and perform routine - On Demand Self Test. If the fault persists, install a new electric steering column lock control module