DTC B112C-87: Interior Motion Sensor - Missing message: 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.

NOTE: Validate the repair & check functionality as follows: Lock/Double Lock the vehicle via the remote key to arm the Interior Motion Sensor (Market dependent). Wait for at least 60 seconds and check the volumetric sensor function by waving a hand backwards & forwards near the Intrusion Sensor. The full alarm should sound. Then use the Jaguar Land Rover approved diagnostic equipment to check this DTC is no longer logged

Refer to the electrical circuit diagrams and check the volumetric sensor power and ground circuits for open circuit, high resistance. Repair the wiring harness as necessary
Refer to the electrical circuit diagrams and check the LIN bus circuit for short circuit to ground, short circuit to power, open circuit, high resistance. Repair the wiring harness as necessary