GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Interior Lights Schematics

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 IP compartment lamp is inoperative.

Does the IP compartment lamp operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

3

Inspect the bulb for an open filament.

Was a problem found?

Go to Step 9

Go to Step 4

4

Test the inadvertent power courtesy lamps supply voltage circuit for an open, high resistance, or short to ground. Refer to Circuit Testing in Wiring Systems.

Was a problem found?

Go to Step 6

Go to Step 5

5

Test for an open or high resistance in the ground circuit. Refer to Circuit Testing in Wiring Systems.

Was a problem found?

Go to Step 7

Go to Step 8

6

Repair the open, high resistance, or short to ground in the inadvertent power courtesy lamps supply voltage circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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7

Repair the open or high resistance in the ground circuit. Refer to Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 10

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8

Replace the IP compartment lamp assembly. Refer to Instrument Panel Storage Compartment Lamp Replacement .

Did you complete the repair?

Go to Step 10

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9

Replace the IP compartment lamp bulb.

Did you complete the repair?

Go to Step 10

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10

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3