Reading 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.
Reading 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 reading lamps. Does the system operate normally? |
Go to Testing for Electrical Intermittents | Go to Step 3 |
| 3 | Test the inadvertent power supply voltage circuit of the reading 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 8 | Go to Step 4 |
| 4 | Test the ground circuit of the reading lamp for high resistance or an open. Refer to Circuit Testing
and Wiring Repairs
. Did you find and correct the condition? |
Go to Step 8 | Go to Step 5 |
| 5 | Inspect the inoperative bulb for an open filament. Is the bulb good? |
Go to Step 7 | Go to Step 6 |
| 6 | Replace the inoperative bulb. Refer to Dome Lamp Replacement . Did you complete the replacement? |
Go to Step 8 | - |
| 7 | Replace the dome lamp. Refer to Dome Lamp Replacement . Did you complete the replacement? |
Go to Step 6 | - |
| 8 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |