Anti-Theft (DWA) System

ANTI-THEFT (DWA) SYSTEM

The GM utilizes the following components to provide the DWA function:







- Door lock hall effect sensor contacts (door open/closed).
- Tailgate lid switch contact (monitored for closed tailgate).
- Hood switch (monitored for closed hood, located under the hood).
- DWA status LED (part of rear view mirror).
- Tilt sensor located in the electrical carrier forward of the glove box (next to GM)
- UIS Interior compartment monitoring sensor (pre wiring in area of installation in center headliner).
- DWA siren (left cowl area next to master cylinder).

COMPONENTS

DOOR CONTACTS
As mentioned in the Central Locking Section, the door lock contact hall effect sensors provide status of door open/closed. The GM will activate the siren if a door open signal becomes active when the DWA is armed.

TAILGATE SWITCH CONTACTS
The tailgate switch contact is located in the tailgate lock actuator assembly. When closed, the tailgate contact provides a ground signal to the GM signifying a "closed tailgate". The GM will activate the siren if the tailgate switch contact ground signal opens when the DWA is armed.

HOOD CONTACT SWITCH







Located on the right side engine compartment, the hood contact switch provides a ground signal to the GM signifying an open hood.

The plunger of this switch can be pulled up past a detent causing the switch contact to open. This feature can be used to simulate a closed hood with the hood open when diagnosing the DWA system.

DWA LED







The LED is provided with constant battery voltage (KL 30) The GM provides a switched ground signal providing the various blinking signals used to convey DWA status to the vehicle operator (covered further on).