GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

1

Attempt to operate the rear compartment lid release and the power door locks.

Do the rear compartment lid release and the power door locks operate properly?

Go to Step 2

Go to Cannot Enter BCM Diagnostics in Body Control Systems

2

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

Does the BCM display a code 24/34?

Go to Diagnostic Trouble Code (DTC) List/Type

Go to Step 3

3

Does the BCM flash any other DTCs?

Go to Diagnostic Trouble Code (DTC) List/Type in Body Control Systems

Go to Symptoms - Seat Belts