Cargo Lamp 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.
Cargo Lamp 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 | Operate the cargo lamp to verify the fault is present. Does the system operate normally? |
Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
| 3 |
|
Go to Step 4 | Go to Step 9 |
| 4 |
|
Go to Step 7 | Go to Step 5 |
| 5 |
|
Go to Step 8 | Go to Step 6 |
| 6 | Connect a test lamp between the ground circuit of the cargo lamp switch and a battery positive voltage circuit. Does the test lamp illuminate? |
Go to Step 10 | Go to Step 11 |
| 7 | Inspect for poor connections at the harness connector of the bulbs. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 12 |
| 8 | Inspect for poor connections at the harness connector of the cargo lamp switch. Refer to Testing for Intermittent Conditions and Poor Connections
and Connector Repairs
in Wiring Systems. Did you find and correct the condition? |
Go to Step 14 | Go to Step 13 |
| 9 | Repair the open in the inadvertent power supply voltage circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 14 | - |
| 10 | Repair the open in the cargo lamp low control circuit. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 14 | - |
| 11 | Repair the open in the ground circuit of the cargo lamp switch. Refer to Wiring Repairs
in Wiring Systems. Did you complete the repair? |
Go to Step 14 | - |
| 12 | Replace the cargo lamp bulbs. Did you complete the replacement? |
Go to Step 14 | - |
| 13 | Replace the cargo lamp switch. Refer to Lamp Switch Assembly Replacement - Front Fog Lamp and Cargo Lamp . Did you complete the replacement? |
Go to Step 14 | - |
| 14 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |