For 1990-2009 cars

Step | Action | Yes | No
--- | --- | --- | ---
Schematic Reference: Interior Lights Schematics
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle
2 | Open the instrument panel (I/P) compartment. Does the I/P compartment lamp illuminate? | Go to Testing for Intermittent Conditions and Poor Connections | Go to Step 3
3 | Do the courtesy lamps operate properly? | Go to Step 4 | Go to Courtesy Lamps Inoperative
4 |

1. Disconnect the I/P compartment lamp switch.
2. Probe the courtesy lamps supply voltage circuit of the I/P compartment lamp with a test lamp that is connected to a good ground.

Does the test lamp illuminate?

Go to Step 5

Go to Step 7

5 | Connect a test lamp between the courtesy lamps supply voltage circuit and the ground circuit of the I/P compartment lamp. Does the test lamp illuminate? | Go to Step 6 | Go to Step 8
6 | Inspect for poor connections at the harness connector of the I/P compartment lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs . Did you find and correct the condition? | Go to Step 10 | Go to Step 9
7 | Repair an open or high resistance in the courtesy lamps supply voltage circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 10 | --
8 | Repair an open or high resistance in the ground circuit. Refer to Circuit Testing and Wiring Repairs . Did you complete the repair? | Go to Step 10 | --
9 | Replace the I/P compartment lamp switch. 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 3