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Home >> Chevrolet >> 2025 >> Silverado EV RST >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Controls >> Repair Instructions >> Drive Motor Control Module Replacement >> Removal Procedure

Removal Procedure

  1. Before removing the old control module, perform the SPS function Prepare Control Module for Removal, if available. Control Module References
  2. Remove underbody panels as necessary. Underbody Panel Component Locator
  3. Drain the drive motor battery cooling system. Drive Motor Battery Cooling System Draining and Filling
  4. Disable the high voltage system. High Voltage Disabling
  5. GM6294596Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Disconnecting high voltage connectors and testing for voltage MUST be performed during the High Voltage Disabling procedure but, for graphic clarity, the high voltage connector(s) are shown still connected.

    High Voltage Connector (4) - Disconnect and position aside - High Voltage Connectors

  6. GM6295126Courtesy of GENERAL MOTORS COMPANY
    WARNING:

    Ensure all High Voltage safety procedures are followed. You must have the appropriate level of up-to-date high voltage training and certification combined with Personal Protection Equipment (PPE) to continue. Review the procedure steps to ensure you have the proper qualifications. You must stop if not properly qualified. Failure to follow the procedure exactly as written may result in serious injury or death.

    Front Trim Finish Compartment (1) - Remove - Front Trim Finish Compartment Removal and Installation

  7. GM6301218Courtesy of GENERAL MOTORS COMPANY

    Front Trim Finish Compartment Support Bolt - Left Side and Right Side (1) - Remove [4x]

  8. Front Trim Finish Compartment Support - Left Side and Right Side (2) - Remove [2x]
  9. GM6301219Courtesy of GENERAL MOTORS COMPANY

    Front End Sheet Metal Cross Brace Bolt (1) - Remove [12x]

  10. GM6301221Courtesy of GENERAL MOTORS COMPANY

    Disconnect the wiring harness retainers.

  11. Front Suspension Strut Housing Brace (1) - Remove
  12. GM6306761Courtesy of GENERAL MOTORS COMPANY

    Retainer (3) - Release

  13. High Voltage Battery Coolant Inlet Hose (2) @ Refrigerant System Control Module - Remove
  14. Electrical Connector (4) - Disconnect
  15. GM6289090Courtesy of GENERAL MOTORS COMPANY

    Radiator Surge Tank Bracket Bolt (1) - Remove

  16. Retainer (3) Release
  17. High Voltage Battery Coolant Cooler Outlet Hose (4) @ Hybrid/Electric Vehicle Propulsion System Coolant Control Valve 1 - Remove
  18. GM6311010Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Disconnect the electrical connector and reposition the wiring harness as necessary.

  19. Push in the tabs on the drive motor battery surge tank inlet hose connector (1) to release the internal retainer.
  20. Retainer (3) - Release
  21. High Voltage Battery Coolant Pump Inlet Hose (2) - Remove
  22. GM6309075Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Retainer (3) - Release

  23. Front Electric Drive Transmission Module Hose (1) @ Front Electric Drive Transmission Module - Remove
  24. High Voltage Battery Coolant Inlet Secondary Hose Nut (2) - Remove
  25. GM6309072Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Retainer (1) - Release

  26. Front Electric Drive Transmission Module Hose (2) @ Hybrid/Electric Vehicle Battery Coolant Pump - Left Side - Remove
  27. Front Electric Drive Transmission Module Hose (2) - Remove
  28. GM6277826Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Battery Charger Receptacle Coolant Outlet Hose Clip (2) - Release

  29. High Voltage Battery Coolant Pump Inlet Hose (1) @ High Voltage Battery Heater Module - Remove
  30. High Voltage Battery Coolant Inlet Secondary Hose Nut (3) - Remove
  31. GM6277904Courtesy of GENERAL MOTORS COMPANY

    High Voltage Battery Coolant Pump Inlet Hose (1) - Reposition

  32. GM6262625Courtesy of GENERAL MOTORS COMPANY

    High Voltage Battery Coolant Inlet Secondary Hose Nut (1) - Remove

  33. Retainer (2) - Release
  34. Heater Coolant Heater Inlet Hose (3) @ High Voltage Battery Heater Module - Remove
  35. GM6262649Courtesy of GENERAL MOTORS COMPANY

    Heater Coolant Heater Inlet Hose (1) - Reposition

  36. GM6423015Courtesy of GENERAL MOTORS COMPANY

    High Voltage Connector (1) - Disconnect - High Voltage Connectors

  37. Electrical Connector (2) - Disconnect
  38. GM6303354Courtesy of GENERAL MOTORS COMPANY

    High Voltage Battery Heater Bracket Bolt (1) - Remove [4x]

  39. High Voltage Battery Heater Module (2) - Remove
  40. GM6303355Courtesy of GENERAL MOTORS COMPANY

    Wiring Harness Retainer (1) - Disconnect [2x]

  41. GM6303356Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    High Voltage Battery Heater Bracket Bolt (1) - Remove [2x]

  42. High Voltage Battery Heater Bracket (2) - Reposition
  43. GM6303357Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  44. Wiring Harness Retainer (2) - Disconnect [3x]
  45. GM6303358Courtesy of GENERAL MOTORS COMPANY

    High Voltage Connector (1) - Disconnect - High Voltage Connectors

  46. Front Electric Drive Transmission Module Positive and Negative Cable Channel Bolt (2) - Remove [4x]
  47. GM6303359Courtesy of GENERAL MOTORS COMPANY

    Front Electric Drive Transmission Module Positive and Negative Cable (1) - Reposition

  48. GM6309641Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Retainer (1) - Release

  49. Front Electric Drive Transmission Module Cooler Coolant Hose (2) @ Front Electric Drive Transmission Module - Remove
  50. GM5756782Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Power Inverter Module Cover Bolt (1) - Remove [4x]

  51. NOTE:

    Drive motor power inverter module cover seal is not serviceable separately.

  52. Drive Motor Power Inverter Module Cover (2) - Remove
  53. GM5756784Courtesy of GENERAL MOTORS COMPANY

    Using a magnetic socket, remove the 3 drive motor power inverter module connector bolts (1).

  54. GM5756786Courtesy of GENERAL MOTORS COMPANY

    Drive Motor Power Inverter Module Bolt (1) - Remove [16x]

  55. Drive Motor Control Module (2) - Remove
  56. Drive Motor Power Inverter Module Cover Gasket (3) - Remove