For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Theft Deterrent System Schematics
1 | Did you perform the Theft Deterrent Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Theft Deterrent
2 |

1. Open the driver's window.
2. Unlock the doors using the power door lock switch or the keyless entry transmitter.
3. Remove the keys from the ignition.
4. Open the driver's door.
5. Observe the SECURITY indicator.

Does the SECURITY indicator flash?

Go to Step 3

Go to Courtesy Lamps Inoperative in Lighting Systems

3 |

1. Lock the vehicle using the power door lock switches or the keyless entry transmitter.
2. Observe the SECURITY indicator.

Does the SECURITY indicator change from flashing to on steady?

Go to Step 4

Go to Power Door Lock Inoperative - Driver Door in Doors

4 |

1. Close all of the doors.

Important: Ensure that all the doors are closed. The Content Theft Deterrent System will not arm itself without all of the doors being closed.

2. Observe the SECURITY indicator.

Does the SECURITY indicator turn off in about 30 seconds?

Go to Step 5

Go to Courtesy Lamps Always On in Lighting Systems

5 |

1. Reach in and unlock the driver's door.
2. Open the driver's door.

Do all of the Alarm mode functions activate (parking lights flash and horn pulses)?

Go to Step 6

Go to Step 7

6 | Disarm the CTD system by inserting the door key into the driver door lock cylinder and rotate it to the unlock position. Do all of the Alarm mode functions stop? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Content Theft Deterrent (CTD) Does Not Disarm with Key Lock
7 | Do any of the alarm functions activate? | Go to Step 8 | Go to Courtesy Lamps Inoperative in Lighting Systems
8 | Do the horns pulse only? | Go to Lights Inoperative in Content Theft Deterrent (CTD) Alarm Mode | Go to Horn Inoperative in Content Theft Deterrent (CTD) Alarm Mode