DEFINITION: The rear compartment courtesy lamp does not turn on when the rear compartment lid is open.

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 rear compartment courtesy lamp bulb filament.

Is the rear compartment courtesy lamp bulb filament open?

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Go to Step 7

Go to Step 4

1. Disconnect the rear compartment courtesy lamp electrical connector.
2. Turn the ignition switch from the OFF position to the RUN position.
3. Use a test light in order to connect between the rear compartment courtesy lamp harness connector terminal A and ground.

Does the test light illuminate?

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Go to Step 5

Go to Step 8

1. Disconnect the rear compartment courtesy lamp switch electrical connector.
2. Use a test light in order to connect between B+ and the rear compartment courtesy lamp switch harness connector terminal B.

Does the test light illuminate?

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Go to Step 6

Go to Step 9

1. Connect a test light between B+ and the rear compartment courtesy lamp harness connector terminal B.
2. Connect a 10A fused jumper between the rear compartment courtesy lamp switch harness connector terminals A and B.

Does the test light illuminate?

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Go to Step 10

Go to Step 11

Replace the rear compartment courtesy lamp bulb.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or an open in circuit 737 or circuit 1393.

Note: Inspect for a faulty rear compartment courtesy lamp diode.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or an open in circuit 350.

Is the repair complete?

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Go to Step 12

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Replace the rear compartment courtesy lamp switch.

Is the repair complete?

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Go to Step 12

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Repair the poor connection or an open in circuit 744.

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