Exterior Courtesy 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.
Exterior Courtesy 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 |
|||
| 1 | Did you perform the Lighting Diagnostic System Check? | Go to Step 2 | Go to Diagnostic System Check - Lighting Systems |
| 2 | Open any door. Do the exterior courtesy lamps operate correctly? |
Go to Testing for Electrical Intermittents in Wiring Systems | Go to Step 3 |
| 3 | Do the interior courtesy lamps illuminate? | Go to Step 4 | Go to Courtesy Lamps Inoperative |
| 4 |
|
Go to Step 6 | Go to Step 5 |
| 5 | Inspect the bulb for an open filament. Is the bulb OK? |
Go to Step 7 | Go to Step 8 |
| 6 | Inspect for poor connections at the harness connector of the DDM or PDM. 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 11 | Go to Step 9 |
| 7 | Inspect for poor connections at the harness connector of the OSRV mirror. 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 11 | Go to Step 10 |
| 8 | Replace the bulb. Refer to Courtesy Lamp Replacement - Exterior . Did you complete the replacement? |
Go to Step 11 | - |
| 9 | Replace the DDM or PDM. Refer to Switch Replacement - Door Lock and Side Window - Driver
or Switch Replacement - Door Lock and Side Window - Passenger
in Doors. Did you complete the replacement? |
Go to Step 11 | - |
| 10 | Replace the mirror. Refer to Mirror Replacement (Manual)Mirror Replacement (Power Mirror)
in Doors. Did you complete the replacement? |
Go to Step 11 | - |
| 11 | Operate the system in order to verify the repair. Did you correct the condition? |
System OK | Go to Step 3 |