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Home › Cadillac › 2017 › XT5 Base › Repair and Diagnosis › Transmission › Automatic Trans › Automatic Transmission - AISIN AF50-8 (MRC) › Repair Instructions - On Vehicle › Transmission Control Module Replacement › Installation Procedure

Installation Procedure

  1. Make sure the transmission manual shaft is in the Park position.
    2. Fig 1: Transmission Control Module/Park Neutral Position Switch Electrical Connector
    GM4285364Courtesy of GENERAL MOTORS COMPANY
  2. Align the flats on the transmission shift shaft with the flats on the TCM/PNP assembly, then install the TCM/PNP assembly (5).
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the TCM/PNP assembly bolts (4) and tighten to 25 N.m (18 lb ft).
  4. Install the TCM/PNP coupling (2).
    5. WARNING:

    Hold the transmission range selector coupling while removing or installing the coupling retaining nut. Failure to hold the coupling can cause damage to the transmission internal park system components which could allow the vehicle to roll when placed in the park position.

  5. Install the nut (1) and tighten to 16 N.m (12 lb ft).
  6. Connect the TCM/PNP assembly electrical connector (3).
  7. Automatic Transmission Range Selector Actuator Hardware Module - Install - Automatic Transmission Range Selector Actuator Hardware Module Replacement 
  8. Install the battery tray. Battery Tray Replacement
  9. Perform the gear selector position learn procedure. Gear Selector -N- Position Learn 
  10. Perform the programming and setup procedure. K71 Transmission Control Module: Programming and Setup (AF50-8, MRC)
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