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Home >> Buick >> 2020 >> Regal Base >> Repair and Diagnosis >> Engine Mechanical >> Starter >> Battery, Charging System And Starting System >> Repair Instructions >> Engine Wiring Harness Junction Block Replacement (LGX) >> Removal Procedure

Removal Procedure

  1. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection (3.6L LGX) 
  2. GM4279606Courtesy of GENERAL MOTORS COMPANY

    Upper Engine Wiring Harness Junction Block Upper Cover (1) - Remove

  3. GM4279609Courtesy of GENERAL MOTORS COMPANY

    Engine Wiring Harness Junction Block Cover (1) - Remove

  4. GM5161773Courtesy of GENERAL MOTORS COMPANY

    Battery Positive Cable Nut (1) - Remove [2x]

  5. Battery Positive Cable (2) - Remove [2x]
  6. Disconnect all electrical connectors.
  7. GM4279613Courtesy of GENERAL MOTORS COMPANY

    Release the 4 retainer tabs using a suitable hook-like tool to release the locking levers to allow the locking levers to be rotated to the full up position. Remove the engine wiring harness junction block (1).

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