GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

DEFINITION: The sunshade illuminated mirror lamps do not turn on when the mirror cover is open.

1

Was the Interior Lamps System Check performed?

--

Go to Step 2

Go to Interior Lamps System Check

2

Inspect the filament of the sunshade illuminated mirror lamps bulbs.

Are any bulb filaments open?

--

Go to Step 5

Go to Step 3

3

  1. Remove the sunshade from the headliner. Refer to Sunshade Replacement in Interior Trim.
  2. Turn the ignition switch from the OFF position to the RUN position.
  3. Using a test light, connect between the sunshade illuminated mirror harness connector terminal A and ground.

Does the test light illuminate?

--

Go to Step 4

Go to Step 6

4

Using a test light, connect between the sunshade illuminated mirror harness connector terminals A and B.

Does the test light illuminate?

--

Go to Step 7

Go to Step 8

5

Replace the sunshade illuminated mirror lamp bulbs.

Is the repair complete?

--

System OK

--

6

Repair the poor connection or an open in circuit 1393.

Is the repair complete?

--

System OK

--

7

  1. Inspect the sunshade illuminated mirror connector terminal and the bulb terminals for a poor connection.
  2. If the connection is OK, replace the sunshade. Refer to Sunshade Replacement in Interior Trim.

Is the repair complete?

--

System OK

--

8

Repair the poor connection or an open in circuit 350.

Is the repair complete?

--

System OK

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