DTC B100D-84: Column Lock Authorization - Signal below allowable range: Action

Using the Jaguar Land Rover approved diagnostic equipment, check the anti-lock brake system control module for related Diagnostic Trouble Code(s) and refer to the relevant DTC index. Rectify as required
Using the Jaguar Land Rover approved diagnostic equipment, perform a CAN network integrity test. Refer to the electrical circuit diagrams and check the module communication circuits for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary