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Removal Procedure

    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.

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

  1. Disable the high voltage system. Refer to High Voltage Disabling .
  2. Remove the power inverter module cover. Refer to Drive Motor Generator Power Inverter Module Cover Replacement .
  3. Fig 1: Motor Generator Power Inverter Module Connectors
    GM2546640Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the electrical connectors (1).
  5. Remove the shield circuit harness ground fasteners (2) and reposition the ground cables.
  6. Disconnect the coolant pipes from the power inverter module. Refer to Drive Motor Power Inverter Module Cooling Inlet Hose Replacement , and. Drive Motor Generator Control Module Radiator Outlet Hose Replacement .
  7. Fig 2: High Voltage Interlock Loop Connector Fasteners
    GM2415000Courtesy of GENERAL MOTORS COMPANY
  8. Remove the high voltage interlock loop connector fasteners (1) and reposition the connector.
  9. Fig 3: Phase Cable Fasteners And Cables
    GM2393733Courtesy of GENERAL MOTORS COMPANY
  10. Remove the three-phase cable fasteners (1) and reposition the cables.
  11. Discard the cable housing seals and the cable fastener seals.
  12. Fig 4: Locating 300 Volt Cable Fasteners
    GM2393735Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The top cable should already be removed when the high voltage disabling was performed.

  13. Remove the 300-Volt cable fasteners (1) and reposition the cables.
  14. Discard the 300-Volt cable connector seals.
  15. Fig 5: Power Inverter Fasteners And Drive Motor Power Inverter Control Module
    GM2393833Courtesy of GENERAL MOTORS COMPANY
  16. Remove the power inverter fasteners (1) and drive motor power inverter control module (2).
  17. Fig 6: Coolant Fitting Fasteners
    GM2548143Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Replacement power inverter module comes pre-assembled with new coolant fittings. Replace coolant fittings only if necessary.

  18. Remove the coolant fitting fasteners (1), the coolant fittings (2), and use NEW seals (3).