Theft Deterrent Outputs Test
WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
Enter Body Control Module (BCM) diagnostic mode. See USING SECURITY INDICATOR under RETRIEVING BODY CONTROL MODULE DIAGNOSTIC TROUBLE CODES. If door jamb switch is activated or deactivated while BCM is in diagnostic mode, BCM will flash fasten seat belt indicator light, sound an audible warning tone and flash courtesy lights. On vehicles equipped with Content Theft Deterrent (CTD) system, BCM will cause courtesy lights to flash, horns to chirp and exterior lights to flash at each interior switch transition.