For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Interior Lights Schematics
1 | Did you review the Lighting System Description and Operation and perform the necessary inspections? | Go to Step 2 | Go to Symptoms - Lighting Systems
2 | Verify that the Courtesy lamps are always on. Does the system operate normally? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3
3 | Test for a short to ground in the interior lamp control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition? | Go to Step 7 | Go to Step 4
4 | Test for a short to ground in each of the door jamb switches circuits. Did you find and correct the condition? | Go to Step 7 | Go to Step 5
5 | Test each door jamb switch for proper operation. Refer to the following:

• | Open switch with the door closed

• | Closed switch with the door open

Did you find a malfunctioning door jamb switch?

Go to Step 6

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

6 | Replace the malfunctioning door jamb switch. Did you complete the repair? | Go to Step 7 | --
7 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 3