Interior Monitoring Sensor

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 Sensor (G273)

Radar Interior Monitoring Control Module 1 (G303), Vehicle Inclination Sensor (G384) and Interior Monitoring Sensor (G273) (three sensors) compose one component.

The interior monitoring sensor is comprised of three individual sensors that are wired to the radar interior monitoring control module 1.

Interior monitoring sensors cannot be replaced separately.