GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1998 🢒 GMC Suburban - 4WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Door Wiring Harness Replacement

Removal Procedure

    Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

  1. Disconnect the negative battery cable.
  2. Remove the trim panel. Refer to Rear Door Trim Panel Replacement .

    3. Object Number: 277850 Size: MH
  3. Disconnect the wiring by completing the following steps:
    4. 3.1. Remove the wiring contact (1) screws.
    3.2. Disconnect the door wiring contact connector.
    3.3. Disconnect the window defogger wiring connectors (5).
    3.4. Disconnect the power door lock actuator connector (4).
    3.5. Remove the wiring harness retainers.
  4. Remove the wiring harness from the door.

Installation Procedure

    Object Number: 277850 Size: MH
  1. Install the wiring harness to the door.
  2. Connect the wiring by completing the following steps:
    3. 2.1. Install the wiring harness retainers.
    2.2. Connect the power door lock actuator connector (4).
    2.3. Connect the window defogger wiring connectors (5).
    2.4. Connect the door wiring contact (1) connector.
    2.5. Install the door wiring contact screws.
  3. Install the trim panel. Refer to Rear Door Trim Panel Replacement .
  4. Connect the negative battery cable.