For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you review the audible warnings circuit operation and perform the necessary inspections? | -- | Go to Step 2 | Go to Symptoms - Instrument Panel, Gages and Console
2 |

1. With the LF door open, insert the ignition key into the ignition switch.
2. Observe the chime and dome lamp operations.
3. Close the LF door.
4. Turn ON the ignition, with the ambient light sensor covered, observe the lighting system operation.
5. Turn OFF the ignition and remove the key from the ignition switch.

Did the dome lamp, lighting system and chime operate normally?

--

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3 | Actuate the dome lamp. Did the dome lamp operate normally? | -- | Go to Step 5 | Go to Step 4
4 | Test the lighting system. Did the lighting system operate normally? | -- | Go to Step 7 | Go to Step 6
5 | Test the door open signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 8 | Go to Step 6
6 | Test the ignition key signal circuit for an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | -- | Go to Step 10 | Go to Step 8
7 | With the key in, test the ignition key signal circuit for voltage. Refer to Circuit Testing in Wiring Systems. Does the voltage measure near the specified value? | 10-12V | Go to Step 8 | Go to Step 9
8 | Replace the multifunction alarm. Refer to Multifunction Alarm Module Replacement . Did you complete the replacement? | -- | Go to Step 10 | --
9 | Replace the ignition switch. Refer to Steering Column Lock and Ignition Switch Cylinder Replacement - On Vehicle in Steering Wheel and Column. Did you complete the replacement? | -- | Go to Step 10 | --
10 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 2