2006 Hummer H3 AutomaticFACTORY OEM SERVICE PROCEDURE

Installation Procedure

WARNING: This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of BCM
    GM1283835Courtesy of GENERAL MOTORS CORP.
  1. Position the BCM to the vehicle.
  2. Attach the BCM to the hinge pillar with the integral tab.
  3. Install the 2 fasteners retaining the BCM to the hinge pillar.
  4. Fig 2: View Of Detached Body Wiring Harness Electrical Connector
    GM1283832Courtesy of GENERAL MOTORS CORP.
  5. Install the fastener retaining the body wiring harness electrical connector to the BCM.
  6. Fig 3: View Of I/P Wiring Harness Electrical Connector
    GM1283829Courtesy of GENERAL MOTORS CORP.
  7. Connect the I/P wiring harness electrical connector (1) to the BCM.
  8. Fig 4: View Of Body Wiring Harness Electrical Connector
    GM1283827Courtesy of GENERAL MOTORS CORP.
  9. Connect the body wiring harness electrical connector (1) to the BCM.
  10. Install the right front hinge pillar trim panel. Refer to Trim Panel Replacement - Right Hinge Pillar in Interior Trim.
  11. If installing a replacement BCM, program the BCM. Refer to Control Module ReferencesΒ .
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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