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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Cooling Systems >> Hybrid/EV System Heating And Cooling >> Repair Instructions >> Generator Control Module Coolant Pump Replacement >> Removal Procedure

Removal Procedure

  1. Disable the high voltage system. Refer to High Voltage Disabling
  2. Drain the power electronics and auxiliary radiator cooling system. Refer to Power Electronics and Auxiliary Radiator Drain and Fill (LTG HP9) 
  3. Drive Motor Generator Control Module Coolant Pump Hose (2) @ Generator Control Module Coolant Pump» Remove - Drive Motor Generator Control Module Coolant Pump Hose Replacement 
    Fig 1: Drive Motor Generator Control Module Coolant Pump Hose Clamp
    GM4485252Courtesy of GENERAL MOTORS COMPANY
  4. Drive Motor Generator Control Module Radiator Inlet Hose (2) @ Generator Control Module Coolant Pump» Remove - Drive Motor Generator Control Module Radiator Inlet Hose Replacement 
    Fig 2: Drive Motor Generator Control Module Radiator Inlet Hose
    GM4493806Courtesy of GENERAL MOTORS COMPANY
  5. Electrical Connector @ Generator Control Module Coolant Pump» Disconnect
  6. Generator Control Module Coolant Pump Bracket Nut (1) @ Generator Control Module Coolant Pump Bracket» Remove [2x]
    Fig 3: Generator Control Module Coolant Pump Bracket Nut
    GM4494511Courtesy of GENERAL MOTORS COMPANY
  7. Generator Control Module Coolant Pump (2) @ Generator Control Module Coolant Pump Bracket» Remove
  8. Generator Control Module Coolant Pump (2)» Remove
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