DTC B100D-96: Column Lock Authorization - Component internal failure: Action

WARNING: This page is about a different car, the 2018 Jaguar XF, 2017 Jaguar XF, and 2016 Jaguar XF. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Prior to clearing this DTC, perform the Vehicle Functional Reset routine

Using JLR approved diagnostic equipment, check datalogger signal - Main ECU Voltage Supply (0xDD02). Refer to the relevant service information and test the battery and charging system
Turn the steering wheel to ensure that the electric steering column lock mechanism is free to move and locking bolt is not restricted. Using JLR approved diagnostic equipment, clear the DTCs and retest
Using JLR approved diagnostic equipment, perform a CAN network integrity test. Refer to the appropriate system wiring diagrams and check the high speed CAN bus (body) circuit for short circuit to ground, short circuit to power, open circuit, high resistance
Using JLR approved diagnostic equipment, clear the DTCs. Perform routine - On Demand Self Test (0x0202). If the fault persists, install a new electric steering column lock control module and configure as a new module