Control Module: Service and Repair

2011 GMC Canyon 4WD L4-2.9LSECTION Service and Repair



Transfer Case Shift Control Module Replacement

Removal Procedure

Note: 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 (Front Seat Replacement - Bucket) or Split Bench Seat Replacement (Split Bench Seat Replacement).
2. Remove the left front sill plate. Refer to Front Side Door Sill Trim Plate Replacement (Front Side Door Sill Trim Plate Replacement).
3. Remove the left hinge pillar. Refer to Body Hinge Pillar Trim Panel Replacement - Left Side (Body Hinge Pillar Trim Panel Replacement - Left Side).
4. Remove the left center pillar. Refer to Center Pillar Lower Trim Panel Replacement (Center Pillar Lower Trim Panel Replacement).




5. Reposition floor carpet to access module.
6. Use a flat-bladed tool to release the 2 tabs (1) retaining the TCCM to the bracket.
7. Partially remove the TCCM from the bracket.
8. Disconnect the electrical connectors.
9. Remove the TCCM from the vehicle.
10. If removing the bracket, remove the 2 fasteners retaining the bracket to the floor panel.
11. Remove the bracket from the vehicle.

Installation Procedure




1. If replacing the bracket, install the bracket to the floor panel.

Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the 2 fasteners retaining the bracket to the floor panel. Tighten the fasteners to 9 Nm (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 (Center Pillar Lower Trim Panel Replacement).
7. Install the left hinge pillar. Refer to Body Hinge Pillar Trim Panel Replacement - Left Side (Body Hinge Pillar Trim Panel Replacement - Left Side).
8. Install the left front sill plate. Refer to Front Side Door Sill Trim Plate Replacement (Front Side Door Sill Trim Plate Replacement).
9. Install the drivers bucket seat or split bench seat. Refer to Front Seat Replacement - Bucket (Front Seat Replacement - Bucket) or Split Bench Seat Replacement (Split Bench Seat Replacement).
10. Refer to Control Module References (Programming and Relearning) for replacement and setup information.

RENDER: 1.0x

NO RELATED

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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.