Vanity Mirror Lamp(s) Inoperative
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Vanity Mirror Lamp(s) Inoperative
| Step | Action | Yes | No |
|---|---|---|---|
| Schematic Reference: Interior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views |
|||
| 1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle |
| 2 | Turn ON the vanity mirror lamp. Does the system operate normally? |
Go to Testing for Electrical Intermittents | Go to Step 3 |
| 3 | Are all of the reading, visor and instrument panel (I/P) compartment lamps inoperative? | Go to Step 4 | Go to Step 6 |
| 4 | Are any of the TBC Fuses open? | Go to Step 5 | Go to Step 6 |
| 5 | Test the battery positive voltage circuit of the body control module (BCM) for a short to ground. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 12 | Go to Step 9 |
| 6 | Test the inadvertent power supply voltage circuit of the vanity lamp for a short to ground, high resistance or an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 12 | Go to Step 7 |
| 7 | Test the ground circuit of the vanity lamp for high resistance or an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 12 | Go to Step 8 |
| 8 | Inspect the inoperative bulb for an open filament. Is the bulb good? |
Go to Step 11 | Go to Step 10 |
| 9 | Repair the inadvertent power supply voltage circuit for a short to ground. Refer to Wiring Repairs
. Did you complete the repair? |
Go to Step 12 | - |
| 10 | Replace the inoperative bulb. Did you complete the replacement? |
Go to Step 12 | - |
| 11 | Replace the sunshade. Refer to Sunshade Replacement
. Did you complete the replacement? |
Go to Step 12 | - |
| 12 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |