DTC B136B-64: Suspension Control Module Wake-up Signal - Signal plausibility 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.

Check for related DTCs and refer to the relevant DTC index. Clear DTCs and retest
Refer to the appropriate system wiring diagrams and check the suspension control module power, ground and ignition circuits for open circuit. Repair circuit as required, clear DTC and retest
Using Jaguar Land Rover approved diagnostic equipment, confirm that the body control module has the correct calibration data and software versions and install as required. Clear the DTCs and retest