Step  | Action  | Yes  | No  | 
|---|---|---|---|
Schematic Reference: Interior Lights Schematics  | |||
1  | Did you perform the Lighting Systems Diagnostic System Check?  | Go to Step 2  | |
2  | Verify that the underhood lamp is inoperative. Does the underhood lamp operate normally?  | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems  | Go to Step 3  | 
3  | Inspect the bulb for an open filament or poor terminal contact. Was a problem found?  | Go to Step 6  | Go to Step 4  | 
4  | Test the inadvertent power courtesy lamps supply voltage circuit for an open, high resistance or short to ground. Refer to Circuit Testing in Wiring Systems. Was a problem found?  | Go to Step 5  | Go to Step 7  | 
5  | Repair the open, high resistance or short to ground in the inadvertent power courtesy lamps supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?  | Go to Step 8  | --  | 
6  | Replace the bulb or repair the socket. refer to Wiring Repairs in Wiring Systems. Did you complete the repair?  | Go to Step 8  | --  | 
7  | Replace the underhood lamp assembly. Refer to Underhood Lamp Replacement . Did you complete the repair?  | Go to Step 8  | --  | 
8  | Operate the system in order to verify the repair. Did you correct the condition?  | System OK  | Go to Step 3  |