GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 1999 🢒 Grand Prix 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Vanity Mirror Lamp Inoperative

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 Lights System Check performed?

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Go to Step 2

Go to Interior Lamps System Check

2

Was the BCM Diagnostic System Check performed?

--

Go to Step 3

Go to Diagnostic System Check - Body Control System in Body Control System

3

Inspect the filament of the sunshade illuminated mirror lamps bulbs.

Are any bulb filaments open?

--

Go to Step 6

Go to Step 4

4
  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. Use a test light in order to connect between the sunshade illuminated mirror harness connector terminal A and ground.

Does the test light illuminate?

--

Go to Step 5

Go to Step 7

5

Use a test light in order to connect between the sunshade illuminated mirror harness connector terminals A and B.

Does the test light illuminate?

--

Go to Step 8

Go to Step 9

6

Replace the sunshade illuminated mirror lamp bulbs.

Is the repair complete?

--

Go to Step 10

--

7

Repair the poor connection or an open in circuit 1393.

Is the repair complete?

--

Go to Step 10

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8
    • Inspect the sunshade illuminated mirror connector terminal and the bulb terminals for a poor connection.
    • If the connection is OK, than replace the sunshade. Refer to Sunshade Replacement in Interior Trim.

Is the repair complete?

--

Go to Step 10

--

9

Repair the poor connection or an open in circuit 350.

Is the repair complete?

--

Go to Step 10

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10
  1. Turn the ignition switch to the OFF position.
  2. Reinstall the connectors and components that were removed.
  3. Turn the ignition switch to the RUN position for 6 seconds.
  4. Turn the ignition switch to the OFF position.
  5. Remove the MALL PGM fuse.
  6. Turn the ignition switch to the ACC position. (The BCM sounds the chime a number of times equivalent to the BCM type installed on the vehicle.)
  7. Within one second, turn the ignition switch from the ACC position, to the OFF position, then back to the ACC position. (The BCM sounds any DTCs stored.)

Are there any BCM DTCs present?

--

Go to Diagnostic System Check - Body Control System in Body Control System

Go to Interior Lamps System Check