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Liftgate Wiring Harness Replacement

Fig 1: Liftgate Wiring Harness
GM2921417Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the liftgate trim panel. Refer to Liftgate Trim Finish Panel Replacement .
  3. Remove the quarter lower rear trim panel. Refer to Quarter Lower Rear Trim Panel Replacement .
  4. Remove the quarter window trim finish panel. Refer to Quarter Window Trim Finish Panel Replacement .
1 Liftgate Wiring Harness Grommet
Procedure 
Disconnect the grommet from the liftgate and body.
2 Liftgate Wiring Harness Body Connector

Procedure

  1. Disconnect the liftgate electrical harness body connectors from the body harness.
  2. Pull the harness in the direction of the arrow, up through the rear quarter panel.
3 Liftgate Wiring Harness High Mount Stop Lamp Connector

Procedure

  1. Disconnect the high mount stop lamp connector.
  2. Pull the harness in the direction of the arrow, through the top of the liftgate.
4 Liftgate Wiring Harness Connectors

Procedure

  1. Disconnect the following electrical connectors.
    • Disconnect the wiper motor connector.
    • Disconnect the liftgate actuator connector.
    • Disconnect the heater wiring harness connector.
    • Disconnect the rear license plate lamp connector.
    • Disconnect the rear latch release connector.
  2. Pull the complete liftgate wiring harness in the direction of the arrow, down through the side of the liftgate and out through the liftgate opening.
5 Liftgate Wiring Harness