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Home >> Buick >> 2012 >> Regal Base >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Hybrid/EV Energy Storage System) >> Repair Instructions >> Generator Control Module Cover Replacement >> 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 will perform the following tasks:

    • 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 exactly as written may result in serious injury or death.

  1. Remove both rear compartment floor panels. Refer to Rear Compartment Floor Panel Trim Replacement (with Battery Cover, HP6) , Rear Compartment Floor Panel Trim Replacement (with Blower Cover, HP6) .
  2. Remove the generator control module cooling air outlet duct. Refer to Generator Control Module Cooling Air Outlet Duct Replacement .
  3. Disable the hybrid battery. Refer to High Voltage Disabling .
  4. Remove the drive motor generator battery bracket. Refer to Drive Motor Generator Battery Bracket Replacement .
    5. Fig 1: Body Harness Connectors
    GM2571124Courtesy of GENERAL MOTORS COMPANY
  5. Remove the body harness connectors (1) from the generator control and battery module.
    6. Fig 2: High Voltage 3-phase Cable
    GM2571363Courtesy of GENERAL MOTORS COMPANY
  6. Remove the high voltage 3-phase cable terminal nuts (1) and the 12V terminal branch nut (4).
  7. Remove the high voltage cable (2) and the 12V cable (3) from the generator control and battery module.
    8. Fig 3: Drive Motor Battery Cooling Blower Outlet Duct Fastener
    GM2571127Courtesy of GENERAL MOTORS COMPANY
  8. Remove the drive motor battery cooling blower outlet duct fasteners (1).
    9. Fig 4: Intermediate Duct Retainers
    GM2571126Courtesy of GENERAL MOTORS COMPANY
  9. Detach the drive motor battery cooling blower outlet duct retainers (1) from the generator control and battery module.
    10. Fig 5: Battery Cooling Air Inlet Duct
    GM2571125Courtesy of GENERAL MOTORS COMPANY
  10. Detach the drive motor battery cooling air inlet upper duct retainers (1).
    11. Fig 6: Generator Control Module Cover Fasteners
    GM2571557Courtesy of GENERAL MOTORS COMPANY
  11. Remove the generator control module cover fasteners (1).
  12. Remove the generator control module cover fastener (2) and remove the generator control module cover (3).
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