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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Data Communications - Repair Instructions >> Repair Instructions >> Serial Data Gateway Module Replacement >> Installation Procedure

Installation Procedure

  1. GM5568576Courtesy of GENERAL MOTORS COMPANY

    Serial Data Gateway Module (1) - Install

  2. Secure the retaining tabs.
  3. Connect the electrical connectors.
  4. GM5537641Courtesy of GENERAL MOTORS COMPANY

    Telematic Control Module (1) - Install

  5. Secure the retaining tabs.
  6. Connect the electrical connectors.
  7. Connect the accelerator pedal electrical connector.
  8. GM5568663Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Upon installing the floor duct to the side of the HVAC case, it is necessary to verify duct opening is completely installed, surrounding the HVAC case outlet port. Failure to do so could result in the duct falling downward, with the potential to interfere with driver's legs and gas/brake pedal operation.

    Floor Front Air Outlet Duct - Left Side (1) - Install

  9. GM5002004Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Floor Front Air Outlet Duct Bolt (1) - Install and tighten - Fastener Specifications

  10. GM5515685Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Lower Trim Panel Insulator (1) - Install

  11. GM5515684Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Lower Insulator Retainer (1) - Install [ 2x ]

  12. Perform the necessary programming and setup procedure: Control Module References
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