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Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Ensure the sliding latch is fully extended before connecting the body wiring extension to the rear electrical center.
    Fig 1: Connecting Body Wiring Extension From Rear Electrical Center
    GM836844Courtesy of GENERAL MOTORS CORP.
  1. Using a downward motion, install the body wiring extension (1) to the rear electrical center.
    2. Fig 2: Connecting BCM Connectors
    GM709161Courtesy of GENERAL MOTORS CORP.
  2. Connect the 24-way gray electrical connector (1) to the BCM.
  3. Connect the 32-way tan electrical connector (2) to the BCM.
    4. Fig 3: Connecting Body Wiring Extension To BCM
    GM684396Courtesy of GENERAL MOTORS CORP.
  4. Connect the body wiring extension (1) to the BCM.
    5. Fig 4: Identifying Rear Electrical Center Locking Tab
    GM728745Courtesy of GENERAL MOTORS CORP.
  5. Engage the sliding latch fastening the BCM to the rear electrical center.

    Slide the latch outboard until the locking tab (1) is fully seated.

    6. Fig 5: View Of Rear Electrical Center Cover
    GM683548Courtesy of GENERAL MOTORS CORP.
  6. Install the rear electrical center cover.
  7. If replacing the body wiring harness extension on a Chevrolet TrailBlazer, GMC Envoy or Oldsmobile Bravada, position the left hand second seat to a passenger position.
  8. If replacing the body wiring harness extension on a Chevrolet TrailBlazer EXT or GMC Envoy XL, install the left second row seat. Refer to Seat Replacement - Rear No. 1 (TrailBlazer EXT, Envoy XL, Envoy XUV) in Seats.
  9. Connect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
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