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Home >> Chevrolet >> 2014 >> Impala LS >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Hybrid/EV System Energy Storage) >> Repair Instructions >> Generator Control and Battery Module Replacement and Shipping Preparation >> Removal Procedure
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Removal Procedure

WARNING: This page is about a different variant/trim than selected.
    WARNING:

    Ensure all High Voltage safety procedures are followed. Failure to follow the procedure exactly as written may result in serious injury or death.

    WARNING:

    Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed.

    The High Voltage Disabling procedure includes the following steps:

    • Identify how to disable high voltage.
    • Identify how to test for the presence of high voltage.
    • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed.

    Before working on any high voltage system, be sure to wear the following Personal Protection Equipment:

    • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors.
    • Certified and up-to-date Class "0" Insulation gloves rated at 1000V with leather protectors.
      • Visually and functionally inspect the gloves before use.
      • Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not.

    Failure to follow the procedures may result in serious injury or death.

  1. Remove the rear compartment floor trim panels. Refer to Rear Compartment Floor Panel Trim Replacement (Without HP6) , Rear Compartment Floor Panel Trim Replacement (With HP6) .
  2. Remove the drive motor battery cooling blower cover. Refer to Drive Motor Battery Cooling Blower Cover Replacement (With HP6) .
  3. Remove the rear compartment floor panel front trim panel. Refer to Rear Compartment Floor Panel Front Trim Replacement (With HP6) .
  4. Ignition OFF, disable high voltage at the A4 hybrid battery pack. Refer to High Voltage Disabling .
  5. Remove the rear end trim finish panel. Refer to Rear End Trim Finish Panel Replacement .
    6. Fig 1: Body Harness Connectors
    GM2571124Courtesy of GENERAL MOTORS COMPANY
  6. Remove the body harness connectors (1) from the generator control and battery module.
    7. Fig 2: High Voltage 3-phase Cable
    GM2571363Courtesy of GENERAL MOTORS COMPANY
  7. Remove the high voltage 3-phase cable terminal nuts (1) and the 12V terminal branch nut (4).
  8. Remove the high voltage cable (2) and the 12V cable (3) from the generator control and battery module.
    9. Fig 3: Drive Motor Battery Cooling Air Outlet Duct
    GM3510849Courtesy of GENERAL MOTORS COMPANY
  9. Remove the drive motor battery cooling air outlet duct (1). Refer to Drive Motor Battery Cooling Air Outlet Duct Replacement (LUK) .
    10. Fig 4: Drive Motor Battery Cooling Blower Outlet Upper Duct Fasteners
    GM2750283Courtesy of GENERAL MOTORS COMPANY
  10. Remove the drive motor battery cooling blower outlet upper duct fasteners (1) and remove the drive motor battery cooling blower outlet upper duct (2). Refer to Drive Motor Battery Cooling Blower Outlet Duct Replacement (LUK) .
    11. Fig 5: Drive Motor Battery Cooling Blower Assembly
    GM2750282Courtesy of GENERAL MOTORS COMPANY
  11. Remove the drive motor generator bracket and cooling blower fasteners (1).
  12. Remove the drive motor battery cooling blower assembly (2).
    13. Fig 6: Drive Motor Battery Cooling Air Inlet Duct
    GM3510860Courtesy of GENERAL MOTORS COMPANY
  13. Remove the drive motor battery cooling air inlet duct (1). Refer to Drive Motor Battery Cooling Air Inlet Duct Replacement .
    14. Fig 7: Generator Control And Battery Module Vent Tube
    GM2571123Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do not bend the vent tube.

  14. Remove the generator control and battery module vent tube (1).
    15. Fig 8: Generator Control & Battery Module Mounting Components
    GM3510913Courtesy of GENERAL MOTORS COMPANY
  15. Remove the generator control and battery module mounting bolts (1).
  16. Remove the generator control and battery module mounting nuts (2).
    17. Fig 9: Generator Control & Battery Module Mounting Bolts
    GM3510912Courtesy of GENERAL MOTORS COMPANY
  17. Remove the generator control and battery module mounting bolts (1).
    18. Fig 10: Protective Cloth Over Trunk-To-Rear Bumper Area
    GM2571114Courtesy of GENERAL MOTORS COMPANY
  18. Place a protective cloth over the trunk-to-rear bumper area.
    19. NOTE:

    Do not insert fingers into vent area of the generator control and battery module while rotating.

  19. With assistance, use gloves to slide the generator control and battery module (1) into the trunk area.
    20. Fig 11: Battery Pack Lifting Adapter Center Eye Bolt
    GM2533069Courtesy of GENERAL MOTORS COMPANY
  20. Using the EL-48264  battery pack lifting adapter center the eye bolt (2) on the generator control and battery module and insert the hooks (1) into the generator control and battery module holes.
  21. Attach a portable lift to the center eye bolt (2) of the battery pack lifting adapter.
    22. Fig 12: Generator Control And Battery Module
    GM2533065Courtesy of GENERAL MOTORS COMPANY
  22. Remove the generator control and battery module (2) from the rear trunk area.
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