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Home >> GMC >> 2021 >> Sierra 2500 HD AT4, 6.6L Eng VIN Y >> Repair and Diagnosis >> Steering >> Power Steering System >> Repair Instructions >> Electronic Power Steering Motor Control Module Replacement >> Installation Procedure

Installation Procedure

GM5294846Courtesy of GENERAL MOTORS COMPANY
  1. Install the electronic power steering motor control module bracket (2).
  2. Prepare the 2 electronic power steering motor control module bracket bolts (1) for installation as follows:
    1. Remove any loose cured adhesive from the external threads of the components using a lint free cloth.
    2. Thread the cleaned components into the internal mating threads and remove to loosen trapped cured adhesive.
    3. Apply thread locking adhesive to the external threads of the components. Adhesives, Fluids, Lubricants, and Sealers 
    4. Ensure there are no gaps in the thread locking adhesive once applied to the component.
    CAUTION:

    Refer to Fastener Caution .

    CAUTION:

    The electronic power steering motor control module and bracket are held together by fasteners that thread into brass inserts embedded in the control module housing. Do NOT overtighten the fasteners or the brass inserts will break free from the housing resulting in unnecessary replacement of the control module.

  3. Install the 2 electronic power steering motor control module bracket bolts (1) and tighten to 6 N.m (53 lb in).
    GM5294840Courtesy of GENERAL MOTORS COMPANY
  4. Install the electronic power steering motor control module (3).
  5. Install the electronic power steering motor control module bracket bolt (2).
  6. Install the electronic power steering motor control module bracket nut (1) and tighten to 25 N.m (18 lb ft).
  7. Install the left front wheelhouse liner. Front Wheelhouse Liner Replacement
    GM5294847Courtesy of GENERAL MOTORS COMPANY
  8. Install the electronic power steering motor control module bracket bolt (2) and tighten to 15 N.m (11 lb ft).
  9. Connect the electrical connectors (1).
  10. Underbody Skid Shield - Install - Underbody Skid Shield Replacement
  11. Perform the steering wheel angle center sensor centering procedure. Steering Wheel Angle Sensor Centering
  12. Perform the necessary programming and setup procedures: Control Module References