DTC B10A2-31: Crash Input - No signal: Action

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 Land Rover Range Rover, 2017 Land Rover Range Rover, 2016 Land Rover Range Rover, 2015 Land Rover Range Rover, and 2014 Land Rover Range Rover. However, it is still accessible from the selected car via links, so may be relevant.

Using the manufacturer approved diagnostic system, check the restraints control module for related DTCs and refer to the relevant DTC index
Refer to the appropriate system wiring diagrams and check the crash signal circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary