GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2000 🢒 GMC C Pickup - 2WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Door Wiring Harness Replacement

Removal Procedure
  1. Remove the trim panel. Refer to Trim Panel Replacement - Rear Door (Cargo Doors) .

    2. Object Number: 277850 Size: MH
  2. Disconnect the wiring by completing the following steps:
    3. 2.1. Remove the wiring contact (1) screws.
    2.2. Disconnect the door wiring contact connector.
    2.3. Disconnect the window defogger wiring connectors (5).
    2.4. Disconnect the power door lock actuator connector (4).
    2.5. Remove the wiring harness retainers.
  3. 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 Trim Panel Replacement - Rear Door (Cargo Doors) .