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Home >> Cadillac >> 2017 >> CT6 Plug-In >> Repair and Diagnosis >> Electrical >> Body Electrical >> Hybrid/EV System Controls >> Repair Instructions >> Drive Motor Power Inverter Module Replacement >> Installation Procedure
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Installation Procedure

  1. Drive Motor Power Inverter Module (4)» Install
    Fig 1: Drive Motor Power Inverter Module, Bracket, Bolts And Nut
    GM4485181Courtesy of GENERAL MOTORS COMPANY
  2. Drive Motor Power Inverter Module Bracket (3)» Install
  3. Drive Motor Power Inverter Module Bracket Nut (2)» Install and tighten 22 N.m (16 lb ft)
    CAUTION: Refer to Fastener Caution
  4. Drive Motor Power Inverter Module Bracket Bolt» Install and tighten [2x] 22 N.m (16 lb ft)
  5. Drive Motor Power Inverter Module Connector (1)» Connect
    Fig 2: Drive Motor Power Inverter Module Connectors, Ground Terminals And Bolts
    GM4485175Courtesy of GENERAL MOTORS COMPANY
  6. Drive Motor Power Inverter Module Connector (2)» Connect
  7. Ground terminal (4)» Install [2x]
  8. Ground Terminal Bolt (3)» Install and tighten [2x] 9 N.m (80 lb in)
  9. Drive Motor Power Inverter Module 3-Phase Cable (3)» Install
    Fig 3: Protective Terminal Cover
    GM4485085Courtesy of GENERAL MOTORS COMPANY
  10. Cable Retainer Nut (1)» Install and tighten
    NOTE: Critical high voltage fastener. Perform second torque verification check following re-assembly.
    • First Pass: 9 N.m (80 lb in)
    • Final Pass: 9 N.m (80 lb in)
  11. Protective Terminal Cover (2)» Install
  12. Drive Motor Power Inverter Module Connector (4)» Connect
  13. High Voltage Terminal Bolt (1)» Hand tighten [6x]
    Fig 4: High Voltage Terminal Bolts
    GM4485078Courtesy of GENERAL MOTORS COMPANY
    NOTE: Critical high voltage fastener. Perform second torque verification check following re-assembly.
  14. High Voltage Terminal Bolt (1)» Tighten [6x]
    • First Pass: 9 N.m (80 lb in)
    • Final Pass: 9 N.m (80 lb in)
  15. High Voltage Cable Connector Cover Seal (3)» Install [2x]
    Fig 5: High Voltage Cable Connector Cover, Bolts And Seals
    GM4485043Courtesy of GENERAL MOTORS COMPANY
  16. High Voltage Cable Connector Cover (2)» Install [2x]
  17. High Voltage Cable Connector Cover Bolt (1)» Install and tighten [4x]
    NOTE: Critical high voltage fastener. Perform second torque verification check following re-assembly.
    • First Pass: 9 N.m (80 lb in)
    • Final Pass: 9 N.m (80 lb in)
  18. Drive Motor Power Inverter Module Cooling Inlet Hose (3)» Install - Drive Motor Power Inverter Module Cooling Inlet Hose Replacement (Drive Motor Power Inverter Module to Heater Inlet Pipe Connector)Drive Motor Power Inverter Module Cooling Inlet Hose Replacement (Heater Inlet Pipe Connector Auxiliary Air Conditioning Evaporator Intermediate Tube to Heater Inlet Pipe Connector)
    Fig 6: Drive Motor Power Inverter Module Cooling Inlet Hose
    GM4477112Courtesy of GENERAL MOTORS COMPANY
  19. Drive Motor Generator Control Module Cooling Outlet Hose (3)» Install - Drive Motor Generator Control Module Cooling Outlet Hose Replacement
    Fig 7: Drive Motor Generator Control Module Cooling Outlet Hose
    GM4476494Courtesy of GENERAL MOTORS COMPANY
  20. Front End Sheet Metal Cross Brace (1)» Install - Front End Sheet Metal Cross Brace Replacement
    Fig 8: Front End Sheet Metal Cross Brace
    GM4485036Courtesy of GENERAL MOTORS COMPANY
  21. Enable the high voltage system. Refer to High Voltage Enabling
  22. Reprogram the drive motor power inverter module, refer to Control Module References
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