GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Safety and Security 🢒 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

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 content theft deterrent (CTD) alarm mode:

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