GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2003 🢒 Seville 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Lights Inoperative in Content Theft Deterrent (CTD) Alarm Mode

Step

Action

Yes

No

Schematic Reference: Theft Deterrent System Schematics

Connector End View Reference: Theft Deterrent System Connector End Views

1

Did you perform the Theft Deterrent Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Theft Deterrent

2

Perform the following to activate the CTD alarm mode:

    • Open the drivers window.
    • Lock the vehicle using the power door lock switch.
    • Wait for the SECURITY indicator to turn off.
    • Reach in and unlock the drivers door.
    • Open the drivers 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

Are only the parking lamps inoperative?

Go to Park Lamps Inoperative in Lighting Systems

Go to Content Theft Deterrent (CTD) Alarm Mode Inoperative