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Home >> Buick >> 2018 >> LaCrosse Base >> Repair and Diagnosis (Single Page) >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Control System >> Repair Instructions >> Generator Control Module 3-Phase Cable Assembly Replacement >> Installation Procedure
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Installation Procedure

  1. GM4745889

    Generator Control Module 3-Phase Cable (1) - Install

  2. GM4745814

    High Voltage Electrical Connector (1) - Connect

  3. Retainer (2) - Engage [2x]
  4. GM4747900

    Drive Motor Power Inverter Module Shield (2) - Install - Drive Motor Power Inverter Module Shield Replacement 

  5. Raise and support the vehicle.
  6. GM4745763

    Retainer (4) @ Automatic Transmission Range Selector Actuator Bracket (3) - Engage

  7. Retainer Clip (1) @ Heater Coolant Pump Hose (2) - Engage
  8. GM4745246

    Generator Control Module 3-Phase Cable (2) - Install

  9. Generator Control Module Cable Housing Bolt (1) - Hand tighten [2x]
  10. GM4745245

    Generator Control Module 3-Phase Cable Bolt (1) - Loosely install [3x]

  11. Generator Control Module 3-Phase Cable Cover Seal (2) - Install
  12. GM4745246
    CAUTION:

    Refer to Fastener Caution

    Generator Control Module Cable Housing Bolt (1) - Tighten [2x] 9 N.m (80 lb in)

  13. Fig 1: Generator Control Module 3-Phase Cable Bolts With Tightening Sequence
    GM4717101Courtesy of GENERAL MOTORS COMPANY

    Generator Control Module 3-Phase Cable Bolt - Tighten in the sequence shown. [3x] 8 N.m (71 lb in)

  14. GM4745244

    Terminal Insulator (2) - Install

  15. Generator Control Module 3-Phase Cable Cover (1) - Install
  16. GM4745243

    Generator Control Module Cable Cover Bolt (1) - Install and tighten [2x] 9 N.m (80 lb in)

  17. Generator Control Module Cable Cover Bolt (2) - Install and tighten 9 N.m (80 lb in)
  18. Enable the high voltage system. High Voltage Enabling