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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 188 (Body Rear End) >> Repair Instructions >> Wiring Harness Replacement - Liftgate >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the battery negative cable. Refer to BATTERY DISCONNECT CAUTION
  2. Open the liftgate.
  3. Remove the liftgate trim panel. Refer to Trim Panel Replacement - Liftgate .
  4. Remove the water deflector. Refer to Water Deflector Replacement - Liftgate .
  5. Remove the rear speakers from the liftgate. Refer to Speaker Replacement - Rear in Entertainment.
  6. Remove the high mounted stop lamp. Refer to High Mounted Stop Lamp Replacement in Lighting Systems.
  7. Remove the license plate lamps. Refer to License Lamp Replacement in Lighting Systems.
  8. Lower the rear of the headliner to access the body harness to the liftgate harness electrical connector. Refer to Headliner Replacement .
  9. Disconnect the liftgate latch electrical connectors.
  10. Remove the rear washer hose. Refer to Washer Nozzle Replacement - Rear in Wipers/Washer Systems.
  11. Remove the rear corner upper garnish moldings. Refer to Finish Panel Replacement - Upper Rear Trim in Interior Trim.
  12. Fig 1: Locating Liftgate Wiring Harness Connectors
    GM313629Courtesy of GENERAL MOTORS CORP.
  13. Disconnect liftgate wiring harness connectors (2) from the rear body wiring harness (3).
  14. Fig 2: Identifying Liftgate Components
    GM1479964Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the following electrical connectors and harness clips from the liftgate panel.
    • Harness retainer (1)
    • Wiper motor connector (2)
    • Harness retainer (3)
    • Harness clip (4)
    • Harness clips (5)
    • License plate lamp sockets (6)
    • Pink tape used for visual aid (7)
    • Harness clip (8)
    • Liftgate latch electrical connectors (9)
    • Green tape used for visual aid (10)
    • Harness clips (11)
    • Wiper motor harness clip to liftgate (12)
    • Speaker electrical connector (13)
    • Harness clip (15)
  16. Remove the electrical harness from the liftgate.