Lights Inoperative in Content Theft Deterrent (CTD) Alarm Mode

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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 CTD system is in alarm mode.
1	Did you perform the Theft Deterrent Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Theft Deterrent
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's window. Lock the vehicle using the power door lock switch. Wait for the theft LED to transition from ON steady to OFF. Reach in and unlock the driver's door. Open the driver's door. Do all of the alarm mode functions activate (lights flash and horn pulses)?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Do the headlamps flash?	Go to Step 4	Go to Diagnostic Starting Point - Lighting Systems in Lighting Systems
4	Do the backup lamps operate?	Go to Horn Inoperative in Content Theft Deterrent (CTD) Alarm Mode	Go to Backup Lamps Inoperative in Lighting Systems