The function of the anti-theft alarm system components can be checked using the GEM's service mode.
If an exact diagnosis is not possible using the service mode, a system diagnosis must be carried out with the Ford diagnostic unit. The last four trigger signals from the anti-theft alarm signal can also be read out during this process.
Function check - Intrusion sensors
Activate the anti-theft alarm system is check the function of the intrusion sensors. After a waiting time of approx. 30 seconds, perform movements on both sides of the vehicle interior through the open side windows. Each movement that is detected is acknowledged through triggering of the anti-theft alarm system.