GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Inspect the sunshade mirror lamps bulb filaments. Refer to Lighted Visor Mirror Bulb.

Any bulb filament open?

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Go to Step 3

Go to Step 2

2

  1. Remove the sunshade from the headliner. Refer to Sunroof Sunshade Replacement in Roof.
  2. Use a test lamp in order to connect between the sunshade illuminated mirror connector terminal A and the ground.

Did the test light illuminate?

--

Go to Step 4

Go to Step 5

3

Replace the sunshade mirror lamp bulb(s).

Is the repair complete?

--

Go to Step 6

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4

  1. Inspect the sunshade illuminated mirror connector terminal and bulb terminals for a poor connection.
  2. Replace the sunshade if the connection is OK. Refer to Sunshade Replacement in Roof.

Is the repair complete?

--

Go to Step 6

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5

Repair the following conditions in CKT 240:

    • A poor connection
    • An open

Is the repair complete?

--

Go to Step 6

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6

  1. Turn the ignition switch to the LOCK position.
  2. Reconnect any of the connectors/components removed.

Have all repairs been made?

--

Go to Interior Lamps System Check

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