For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Theft Deterrent System Schematics Connector End View Reference: Component Connector End Views DEFINITION: The content theft deterrent (CTD) system will not ARM or DISARM properly.
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 | Important: When the content theft deterrent (CTD) system is armed, the vehicle will confirm by chirping the alarm and flashing the turn signals once.

1. Open the driver and passenger windows.
2. Remove the keys from the ignition.
3. Close all the doors, rear compartment and the hood.
4. Lock the doors with the transmitter. Arm the system.

Did the CTD system arm?

Go to Step 3

Go to Step 4

3 | Important: When the CTD system is disarmed, the vehicle will confirm by flashing the turn signals twice. With the system still armed, unlock a door with the key. Does the CTD system disarm? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Content Theft Deterrent (CTD) Does Not Disarm with Key Lock
4 |

1. Switch the dome lamp to the center position (DOOR).
2. Unlock the doors with the transmitter.
3. Observe the courtesy lamps.
4. Open and close each door.

Do the courtesy lamps illuminate for all doors?

Go to Step 5

Go to Symptoms - Lighting Systems

5 | Remove the key from the ignition. Does the key reminder chime sound? | Go to Step 7 | Go to Step 6
6 |

1. Disconnect the hood switch.
2. Connect a 3-amp fused jumper across the hood switch terminals.
3. Attempt to arm the CTD system.

Does the CTD system arm?

Go to Step 10

Go to Step 7

7 | Test for an open or high resistance in the hood switch signal circuit. Refer to Testing for Continuity and Wiring Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 8
8 | Test for a poor connection at the remote control door lock receiver (RCDLR). Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 12
9 | Test for a short to ground in the key reminder circuit. Refer to Testing for Short to Ground and Wiring Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 11
10 | Test for a poor connection at the hood switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 14 | Go to Step 13
11 | Replace the ignition switch. Refer to Ignition Lock Cylinder Replacement . Did you complete the replacement? | Go to Step 14 | --
12 | Replace the RCDLR. Refer to Remote Control Door Lock Receiver Replacement . Did you complete the replacement? | Go to Step 14 | --
13 | Replace the hood switch. Did you complete the replacement? | Go to Step 14 | --
14 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2