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

Check for related DTCs and refer to the relevant DTC index. Clear the DTCs and retest
Refer to the appropriate SYSTEM WIRING DIAGRAMS information and check the integrated suspension control module power, ground, ignition and air suspension control signal circuits for open circuit. Repair circuit as required, clear the DTCs and retest
Using the 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