GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Interior Lights Schematics

Connector End View Reference: Master Electrical Component List

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

  1. Open the vanity mirror cover.
  2. Close the vanity mirror cover.

Do the vanity mirror lamps operate properly?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Are all vanity mirror and reading lamps inoperative?

Go to Reading Lamp Inoperative

Go to Step 4

4

Check the bulb of the inoperative lamp. Refer to Vanity Mirror Lamp Replacement .

Is the bulb OK?

Go to Step 5

Go to Step 7

5

Test the inadvertent power courtesy lamp and ground circuits of the sunshade for high resistance or an open. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 6

6

Inspect for poor connections at the harness connector of the inoperative vanity mirror lamp assembly. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 8

7

Replace the bulb.

Did you complete the replacement?

Go to Step 9

--

8

Replace the sunshade. Refer to Sunshade Replacement .

Did you complete the replacement?

Go to Step 9

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9

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2