GM Service Manual Online
For 1990-2009 cars only

Step

Action

Value(s)

Yes

No

1

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

Are any BCM DTCs set?

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Go to Diagnostic Trouble Code (DTC) List/Type

Go to Step 2

2

  1. Test for a poor connection at BCM connector C2 terminal E.
  2. Test for a poor connection at BCM connector C3 terminal D1.
  3. If the connections are OK, replace the BCM. Refer to Body Control Module Replacement

Is the repair complete?

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System OK

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