Arm/Disarm Switch: Description and Operation

Anti-Theft Alarm System

• Additional information:

Refer to Owner's Manual.

General Description:

Functions of anti-theft alarm system are integrated in Comfort System Central Control Module (J393).

Anti-theft alarm system must be adapted after replacing Comfort System Central Control Module, refer to => [ Comfort System Central Control Module ] Description and Operation.

• If Comfort System Central Control Module is to be replaced, the work procedure => [ Comfort System Central Control Module, Replace and Coding ] Programming and Relearning to read out the codes stored in the module must always be performed.

• After replacing Comfort System Central Control Module, other functions of Comfort System Central Control Module such as Anti-theft Immobilizer, Anti-theft Alarm System, access and start authorization, tire pressure monitoring and central locking system key must also be adapted, depending on vehicle equipment.

• In this case, start by adapting the Anti-theft Immobilizer, refer to => [ Anti-Theft Immobilizer Control Module, Adapting ] Anti-Theft Immobilizer Control Module (J362), Adapting and then the other equipment-dependent functions of access and start authorization in any order.

DTC Recognition and Display:

Anti-theft alarm system is equipped with On Board Diagnostics (OBD) which assists troubleshooting.

The "Guided Fault Finding" function is to be used for troubleshooting of one of the systems described.

• After anti-theft alarm system has triggered, the alarm source, which is stored in Comfort System Central Control Module, can be checked, refer to => [ Anti-Theft Alarm System Sources, Checking ] Anti-Theft Alarm System Sources, Checking.

• After Alarm Horn (H12) has triggered, the alarm source, which is stored in Comfort System Central Control Module, can be checked, refer to => [ Alarm Horn Sources, Checking ] Alarm Horn Sources, Checking.

Interior Monitoring Deactivation Switch (E267) and Vehicle Inclination Sensor Deactivation Button (E360)

- Removing and installing Interior Monitoring Deactivation Switch and Vehicle Inclination Sensor Deactivation Button, refer to => [ Interior Monitoring Deactivation Switch and Vehicle Inclination Deactivation Sensor Button ] Service and Repair.