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Home › GMC › 2013 › Sierra 1500 XFE › Repair and Diagnosis › External Pages › Different variant/trim › Section 7 (Hybrid/EV Control System) › Repair Instructions › Drive Motor Generator Control Module Assembly Replacement › Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of drive motor generator control module & Lifting Device
    GM1971288Courtesy of GENERAL MOTORS COMPANY
  1. Attach a lifting device (2 and 3) to the drive motor generator control module assembly at the three identified locations.
  2. Lift the drive motor generator control module assembly into the vehicle.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Remove the lifting device and install the ball studs (1). Tighten the ball studs to 10 N.m (89 lb in).
    4. Fig 2: Locating Control Module Assembly Retainers & Mounting Nuts
    GM1971286Courtesy of GENERAL MOTORS COMPANY
  4. Install the drive motor generator control module assembly retainers (4) and mounting nuts (3). Tighten the mounting nuts to 9 N.m (80 lb in).
  5. Install the APM ground strap (1) and APM ground strap nut (2). Tighten the nut to 9 N.m (80 lb in).
    6. Fig 3: Identifying Sight Shield Circuit Breaker & Fasteners
    GM1971283Courtesy of GENERAL MOTORS COMPANY
  6. Install the sight shield circuit breaker (2) and secure with bolts (1). Tighten the bolts to 5 N.m (44 lb in).
    7. Fig 4: Identifying APM Assembly Connectors
    GM1971280Courtesy of GENERAL MOTORS COMPANY
  7. Connect the APM assembly connectors (1 and 3) and install any removed locking tabs.
  8. Connect the APM assembly connector (2) using the following procedure:
    1. Push the lever up.
      2. NOTE:

      Install the connector (2) without disturbing the position of the lever. DO NOT use the lever to install the connector in place.

    2. Install the connector (2) onto the terminals by pushing on the connector only.
    3. Rotate the lever after the terminals are engaged.
    4. Push the green tab to lock the lever.
    9. Fig 5: Identifying Drive Motor Generator Position Sensor Shield Circuit Harness
    GM1971281Courtesy of GENERAL MOTORS COMPANY
  9. Remove the caps (3, 6) from the drive motor generator power inverter coolant pipes.
  10. Connect the drive motor generator power inverter module (PIM) cooling inlet and outlet hoses (4, 5).
  11. Install the shield circuit harness (1) and terminal fastener (2). Tighten the terminal fastener to 9 N.m (80 lb in).
    12. Fig 6: Identifying Power Inverter Control Module (PIM) 3-Phase Cable Terminal Fasteners
    GM1971277Courtesy of GENERAL MOTORS COMPANY
  12. Install the PIM 3 phase cables (3, 5) into the PIM distribution box with new seals (6).
  13. Install the PIM 3 phase cable mounting fasteners (2, 4). Tighten the mounting fastener to 9 N.m (80 lb in).
    14. CAUTION:

    Always remove and install the High Voltage terminal fasteners with a magnet tipped socket. Never touch the exposed electronic circuit board surface or components. Dropped fasteners or physical contact may result in electronic circuit board damage.

  14. Install the PIM 3 phase cable terminal fasteners (1). Tighten the terminal fastener to 9 N.m (80 lb in).
    15. Fig 7: Identifying HV DC Battery Cable & Seal
    GM1971278Courtesy of GENERAL MOTORS COMPANY
  15. Install the HV dc battery cable (6) with seal (7) into the PIM distribution box.
  16. Install the HV dc battery cable mounting fasteners (5). Tighten the mounting fastener to 9 N.m (80 lb in).
    17. CAUTION:

    Always remove and install the High Voltage terminal fasteners with a magnet tipped socket. Never touch the exposed electronic circuit board surface or components. Dropped fasteners or physical contact may result in electronic circuit board damage.

  17. Install the high voltage (HV) dc battery cable terminal fasteners (2). Tighten the terminal fastener to 9 N.m (80 lb in).
  18. Install the HV dc electric air conditioning compressor module (ACCM) cable (4) with seal (7) into the PIM distribution box.
  19. Install the HV dc electric ACCM cable mounting fasteners (3). Tighten the mounting fasteners to 9 N.m (80 lb in).
    20. CAUTION:

    Always remove and install the High Voltage terminal fasteners with a magnet tipped socket. Never touch the exposed electronic circuit board surface or components. Dropped fasteners or physical contact may result in electronic circuit board damage.

  20. Install the HV dc electric ACCM cable terminal fasteners (1). Tighten the terminal fastener to 9 N.m (80 lb in).
    21. Fig 8: View Of PIM, Terminal Cover & Seal
    GM1971289Courtesy of GENERAL MOTORS COMPANY
  21. Install a new seal (3) on the PIM distribution box.
    22. NOTE:

    DO NOT use excessively abrasive cleaning tools on the sealing surface. Hand sanding with wet 400 grit sandpaper or use of a hand scraper is recommended.

  22. Clean the sealing surface of the 3 phase cable cover as necessary.
  23. Position the 3 phase cable cover (2) onto the PIM distribution box ensuring the seal remains in place.
  24. Tighten the 3 phase cable cover fasteners (1). Tighten the fasteners to 9 N.m (80 lb in).
    25. Fig 9: View Of Drive Motor Generator Control Module Assembly Connector
    GM2008827Courtesy of GENERAL MOTORS COMPANY
  25. Connect the drive motor generator control module assembly connector (1).
  26. Fill the power electronics cooling system and test for leaks at all serviced connections. Refer to Generator Control Module Cooling System Draining and Filling .
  27. Install the sight shield. Refer to Drive Motor Generator Control Module Sight Shield Replacement .
  28. Install the fender cross brace. Refer to Front Fender Rear Upper Brace Replacement .
  29. Perform the High Voltage Enabling procedure. Refer to High Voltage Enabling .
  30. Install the air cleaner. Refer to Air Cleaner Assembly Replacement .
  31. For control module programming and setup procedures, refer to Control Module References .
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