GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Isuzu 🢒 2006 🢒 I-350 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Transfer Case Shift Control Module Replacement

Removal Procedure

    Important: The transfer case shift control module (TCCM) is located under the drivers seat carpet. For removal purposes, access the TCCM from underneath the carpet.

  1. Remove the drivers bucket seat or split bench seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement.
  2. Remove the left front sill plate. Refer to Front Side Door Sill Plate Replacement.
  3. Remove the left hinge pillar. Refer to Body Hinge Pillar Trim Panel Replacement - Left Side.
  4. Remove the left center pillar. Refer to Center Pillar Lower Trim Panel Replacement.

    5. Object Number: 1346474 Size: SH
  5. Use a flat-bladed tool to release the 2 tabs (1) retaining the TCCM to the bracket.
  6. Partially remove the TCCM from the bracket.
  7. Disconnect the electrical connectors.
  8. Remove the TCCM from the vehicle.
  9. If removing the bracket, remove the 2 fasteners retaining the bracket to the floor panel.
  10. Remove the bracket from the vehicle.

Installation Procedure

    Object Number: 1346474 Size: SH
  1. If replacing the bracket, install the bracket to the floor panel.

    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 2 fasteners retaining the bracket to the floor panel.

    3. Tighten
    Tighten the fasteners to 9 N·m (80 lb in).

  3. Position the TCCM to the bracket.
  4. Connect the electrical connectors.
  5. Install the TCCM to the bracket, ensuring the retaining tabs (1) are fully engaged.
  6. Install the left center pillar. Refer to Center Pillar Lower Trim Panel Replacement.
  7. Install the left hinge pillar. Refer to Body Hinge Pillar Trim Panel Replacement - Left Side.
  8. Install the left front sill plate. Refer to Front Side Door Sill Plate Replacement.
  9. Install the drivers bucket seat or split bench seat. Refer to Front Seat Replacement - Bucket or Split Bench Seat Replacement.
  10. Refer to Control Module References for replacement and setup information.