Underhood Lamp Inoperative
WARNING: This page is about a different car, the 2002 Oldsmobile Bravada, 2002 GMC Envoy XL, 2002 GMC Envoy, and 2002 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
Underhood Lamp Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Interior Lights Schematics | |||
| 1 | Did you perform the Lighting Systems Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 | Verify that the underhood lamp is inoperative. Does the underhood lamp operate normally? |
Go to and 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 |