GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

Check for body control module (BCM) DTCs. Refer to Diagnostic Trouble Code (DTC) Displaying .

Are any BCM DTCs present?

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Go to Diagnostic Trouble Code (DTC) List/Type

Go to Step 2

2

Replace the BCM. Refer to Body Control Module Replacement .

Is the repair complete?

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System OK

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