For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Theft Deterrent System Connector End Views DEFINITION: The 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
2 | Perform the following to activate the CTD alarm mode:

1. Open the driver window.
2. Close all the doors.
3. The power door lock switch or remote transmitter must be used to lock the vehicle or arm the content theft deterrent (CTD) system.
4. Wait for the SECURITY indicator to turn OFF.
5. Keeping the key fob out of range of the vehicle, reach in and pull the manual release lever for the driver door.
6. Open the driver door.

Do all of the alarm mode functions activate, lights flash and horn pulses?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3 | Are only the parking lamps inoperative? | Go to Park Lamps Inoperative | Go to Content Theft Deterrent (CTD) Alarm Mode Inoperative