GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 Sonoma Pickup - 4WD 🢒 Engine 🢒 Engine Controls - 4.3L 🢒 Transfer Case Shift Control Module Replacement

Removal Procedure

    Object Number: 303459 Size: SH
  1. Remove the right hinge trim panel. Refer to Body Hinge Pillar Trim Panel Replacement - Right Side in Interior Trim.

    2. Object Number: 662060 Size: SH

    Important: Before performing the following service procedure, ensure that the ignition is in the off position.

  2. Disconnect the 2 wiring harness connectors from the transfer case control module.

    3. Object Number: 662055 Size: SH
  3. Remove the mounting nuts for transfer case control module to the retainer.
  4. Remove the transfer case control module from the mounting bracket.

Installation Procedure

    Object Number: 662055 Size: SH
  1. Install the transfer case control module on the mounting bracket.

    2. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

  2. Install the mounting nuts on the mounting bracket.

    3. Tighten
    Tighten the nut to 6 N·m (53 lb in).


    Object Number: 662060 Size: SH
  3. Install wiring harness connectors to the transfer case control module.

    4. Object Number: 303459 Size: SH
  4. Install the right hinge trim panel. Refer to Body Hinge Pillar Trim Panel Replacement - Right Side in Interior Trim.