TrailBlazer 4WD L6-4.2L VIN S (2002)
7. Disconnect the body wiring extension (1) from the BCM.
8. Disconnect the 32-way tan electrical connector (2) from the BCM.
9. Disconnect the 24-way gray electrical connector (1) from the BCM.
10. With an upward motion, disconnect the body wiring extension (1) from the rear electrical center.
11. Remove the body wiring extension from the vehicle.