GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Open the driver door.

Do the courtesy lamps illuminate?

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Go to Step 2

Go to Diagnostic System Check - Lighting Systems in Lighting Systems

2

Replace the body control module (BCM). Refer to Body Control Module Replacement in Body Control Systems.

Is the repair complete?

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System OK

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