TrailBlazer 2WD L6-4.2L VIN S (2003)
5. Press down and hold the locking tab (1).
6. Disengage the sliding latch retaining the BCM to the rear electrical center.
Slide the latch inboard until fully extended, approximately 40 mm (1.6 in).
7. Disconnect the 40-way 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.
