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Home >> GMC >> 2013 >> Sierra 1500 XFE >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Brake Control System >> Repair Instructions >> Trailer Brake Power Control Module Replacement (3500 Chassis Cab) >> Removal Procedure
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Removal Procedure

  1. Place the ignition switch in the OFF position.
    2. NOTE:

    Do not remove the spare wheel hoist.

  2. Remove the spare tire and wheel assembly, if necessary. Refer to Spare Wheel Hoist Replacement .
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
    4. Fig 1: Trailer Brake Control Module Bracket Bolts
    GM2442949Courtesy of GENERAL MOTORS COMPANY
  4. Loosen, but do not remove, the trailer brake control module bracket bolts (1).
  5. Disconnect the trailer brake control module and relay electrical connectors.
    6. Fig 2: Trailer Brake Control Module And Bracket Assembly
    GM2442953Courtesy of GENERAL MOTORS COMPANY
  6. Slide the trailer brake control module and bracket assembly (1) toward the right side of the vehicle.
  7. Remove the trailer brake control module and bracket assembly
    8. Fig 3: Trailer Brake Control Module Bolts
    GM2442963Courtesy of GENERAL MOTORS COMPANY
  8. Loosen, but do not remove, the 3 trailer brake control module bolts (1).
    9. Fig 4: Trailer Brake Control Module
    GM2445183Courtesy of GENERAL MOTORS COMPANY
  9. Slide the trailer brake control module (1) to remove the module from the bracket.
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