DEFINITION: The courtesy lights do not turn on for 40 seconds when unlocking the doors using the keyless entry transmitter

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

1. Lower the driver's window in order to prevent lockout.
2. Close and lock all vehicle doors.
3. Turn the ignition switch from OFF to RUN, then back to OFF.
4. While observing the courtesy lights and the door locks, press UNLOCK on the keyless entry transmitter.

Upon pressing UNLOCK on the keyless entry transmitter, do the door locks unlock?

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Go to Step 4

Go to Remote Keyless Entry System Check in Keyless Entry

Upon pressing UNLOCK on the keyless entry transmitter, do the courtesy lights turn on for 40 seconds?

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Go to Step 6

Go to Step 5

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

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Go to Step 6

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1. Turn the ignition switch to the OFF position.
2. Reinstall the connectors and components 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