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Home >> Chevrolet >> 2018 >> Suburban 3500 HD LS >> Repair and Diagnosis >> Body & Frame >> Towing Systems >> Trailer Brake Controls System >> Repair Instructions >> Wiring Harness Connector Replacement - Trailer Brake >> Removal Procedure

Removal Procedure

  1. Remove Rear Bumper Fascia Trailer Hitch Access Hole Cover. Refer to Rear Bumper Fascia Trailer Hitch Access Hole Cover Replacement (Cadillac, GMC)Rear Bumper Fascia Trailer Hitch Access Hole Cover Replacement (Chevrolet)
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle
  3. Disconnect the wiring harness connector electrical connector.
    4. Fig 1: Wiring Harness Connector Lock Pin
    GM4116861Courtesy of GENERAL MOTORS COMPANY
  4. Release Wiring Harness Connector Lock Pin (1)
    5. Fig 2: Wiring Harness Connector
    GM4116865Courtesy of GENERAL MOTORS COMPANY
  5. Rotate Wiring Harness Connector (1) Left
    6. Fig 3: Wiring Harness Connector
    GM4116869Courtesy of GENERAL MOTORS COMPANY
  6. Remove Wiring Harness Connector (1)
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