DTC B100D-81: Column Lock Authorization - Invalid serial data received: 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.

NOTE: Prior to clearing this DTC, using the manufacturer approved diagnostic system, carry out the Vehicle Functional Reset application

Using the manufacturer approved diagnostic system, re-configure the central junction box with the latest level software
Using the manufacturer approved diagnostic system, perform a CAN network integrity test
Using the manufacturer approved diagnostic system, perform an on demand self test
Refer to the appropriate system wiring diagrams and check the CAN circuit for short circuit to ground, short circuit to power, open circuit, high resistance