Vanity Mirror Lamp(s) Inoperative
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. 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 Body Control System Connector End Views in Body Control System. |
|||
| 1 | Did you perform the Lighting Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 | Turn ON the vanity mirror lamp. Does the system operate normally? |
Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
| 3 | Are all of the reading, visor and I/P compartment lamps inoperative? | Go to Step 4 | Go to Step 6 |
| 4 | Is the TBC 2C Fuse in the I/P fuse block open? | Go to Step 5 | Go to Step 6 |
| 5 | Test the battery positive voltage circuit of the BCM for a short to ground. Refer to Circuit Testing
and Wiring Repairs
in Wiring Systems. 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
in Wiring Systems. 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
in Wiring Systems. 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 OK? |
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
in Wiring Systems. 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
in Interior Trim. 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 |