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Home >> Cadillac >> 2005 >> CTS Base, 2.8 T, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Introduction & Repair Instructions >> Repair Instructions >> Transmission Control Module (TCM) Replacement >> Installation Procedure

Installation Procedure

    Fig 1: View Of TCM Mounting Bracket Retaining Tabs
    GM796811Courtesy of GENERAL MOTORS CORP.
  1. Align the transmission control module with the locating pins (2) on the module mounting bracket.
  2. Install the transmission control module by seating it fully into the bracket until all of the retaining tabs (1) have engaged the edge of the module edge.
    3. Fig 2: View Of TCM Electrical Connector & Retainer
    GM796810Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Twisting or tilting of the transmission control module electrical connector while connecting may result in bent or misaligned electrical terminal pins.
  3. Carefully connect the transmission control module electrical connector (1) to the transmission control module.
  4. Lock the transmission control module electrical connector securely to the transmission control module by pushing the retainer (2) toward the electrical connector (1) until fully seated.
  5. The transmission control module must be programmed with the proper software/calibrations. Refer to Service Programming System (SPS) in Programing.
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