Lights Inoperative in Content Theft Deterrent (CTD) Alarm Mode

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Step	Action	Yes	No
Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Theft Deterrent System Connector End Views DEFINITION: The vehicle lights do not flash when the Content Theft Deterrent (CTD) System is in alarm mode.
1	Did you perform the Diagnostic System Check - Vehicle?	Go to Step 2	Go to Diagnostic System Check - Vehicle in Vehicle DTC Information
2	Perform one of the following to activate the CTD alarm mode: Operate the PANIC button on the keyless entry transmitter. Complete the following steps: Open the driver window. Lock the vehicle using the power door lock switch. Wait for the theft LED to transition from ON steady to flashing slowly. Reach in and unlock the driver door. Open the driver door. Do all of the alarm mode functions activate (headlamps flash and horn pulses)?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Are only the headlamps inoperative?	Go to Headlamps Inoperative - Low Beams in Lighting Systems	Go to Content Theft Deterrent (CTD) Alarm Mode Inoperative