DEFINITION: The windshield header courtesy/reading lamps do not turn on when neither the courtesy lights are on, nor the windshield header courtesy/reading lamp switches are on.

Was the Interior Lights System Check performed?

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Go to Step 2

Go to Interior Lamps System Check

Was the BCM Diagnostic System Check performed?

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Go to Step 3

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

Inspect the filament of the windlshield header courtesy/reading lamps bulbs.

Are any bulb filaments open?

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Go to Step 7

Go to Step 4

1. Disconnect the windshield header courtesy/reading lamps electrical connector.
2. Turn the ignition switch from the OFF position to the RUN position.
3. Turn the IP dimmer switch to the DOME position.
4. Using a test light praobe between the windshield header courtesy/reading lamps harness connector terminal A and ground.

Does the test light illuminate?

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Go to Step 5

Go to Step 8

Using a test light probe between the windshield header courtesy/reading lamps harness connector terminal A and B.

Does the test light illuminate?

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Go to Step 6

Go to Step 9

Using a test light probe between the windshield header courtesy/reading lamps harness connector terminal A and C.

Does the test light illuminate?

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Go to Step 10

Go to Step 11

Replace the windshield header courtesy/reading lamp bulbs.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or open in circuit 1393.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or open in circuit 690.

Is the repair complete?

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Go to Step 12

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Replace the windshield header courtesy/reading lamps assembly.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or open in circuit 350.

Is the repair complete?

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Go to Step 12

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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?

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

Go to Interior Lamps System Check