GM Service Manual Online
For 1990-2009 cars only

Transfer Case Shift Control Module Replacement Automatic 4WD

Removal Procedure


    Object Number: 177176  Size: SH
  1. Remove the lower instrument panel trim.
  2. Remove the two screws securing the auto transfer case control module to the bracket.
  3. The bracket is mounted on the I/P reinforcement.

  4. Remove the electrical connector from the auto transfer case control module.

Installation Procedure

  1. Install the electrical connector to the auto transfer case control module.

  2. Object Number: 177176  Size: SH

    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.

  3. Install the two screws securing the auto transfer case control module to the bracket.
  4. Tighten
    Tighten the transfer case control module screws to 8 N·m (71 lb ft).

  5. Install the lower instrument panel trim.