Park Lamps Inoperative

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

Park Lamps Inoperative Diagnostic Test

Step	Action	Yes	No
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Lighting Systems Connector End Views
1	Did you perform the Lighting Systems Diagnostic System Check?	Go to Step 2	Go to Diagnostic System Check - Lighting Systems
2	Verify that the front park lamps are inoperative. Do the park lamps operate normally?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Inspect the F PARK fuse in the body relay block. Is the fuse open?	Go to Step 5	Go to Step 4
4	Inspect the inoperative bulbs/sockets for open or shorted filaments/terminals. Does any lamp have an open or shorted filament/terminals?	Go to Step 7	Go to Step 6
5	Repair the short to ground in the front park lamps supply voltage circuit or cornering lamps supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 8	-
6	Repair the open or high resistance in the front park lamps supply voltage circuit or ground circuit to the inoperative lamp. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair?	Go to Step 8	-
7	Replace the defective bulb/socket. Refer to Park/Turn Signal/Side Marker Lamp Bulb Replacement (Envoy) or Park/Turn Signal/Side Marker Lamp Bulb Replacement (TrailBlazer) or Park/Turn Signal/Side Marker Lamp Bulb Replacement (Bravada) or Park/Turn Signal/Side Marker Lamp Bulb Replacement (Rainier) . Did you complete the repair?	Go to Step 8	-
8	Operate the system in order to verify the repair. Did you correct the condition?	System OK	Go to Step 3