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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1961 (Hybrid Controls - 3.6L (Hp5) - Introduction) >> Repair Instructions >> Drive Motor Generator Power Inverter Module Removal and Installation >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Drive Motor Generator Control Module Assembly Components
    GM2175735Courtesy of GENERAL MOTORS CORP.
  1. Install new APM coolant seal (3).
  2. Position the APM (2) onto the PIM ensuring the seal remains in place.
    3. CAUTION: Refer to Fastener Caution .
  3. Install the accessory DC power control module (APM) bolts (1). Tighten the bolts to 10 N.m (89 lb in).
    4. NOTE: Only use pre-mixed DEX-COOL® on the coolant pipe O-ring to aid in tube installation.
  4. Install the drive motor generator power inverter coolant pipes unless a service replacement PIM is being installed:
    1. Lubricate the new seals (6, 9) with pre-mixed DEX-COOL®.
    2. Install new seals (6, 9) onto the drive motor generator power inverter coolant pipes (5, 8).
    3. Install the coolant pipes (5, 8) to the PIM assembly with bolts (4, 7). Tighten the bolts to 5 N.m (44 lb in).
    5. Fig 2: Leak Testing Drive Motor Generator Control Module Assembly
    GM2175736Courtesy of GENERAL MOTORS CORP.
  5. Rotate the drive motor generator control module assembly onto the APM.
  6. Clamp the GE-48494:  adapter kit components (2, 3) to a coolant pipe.
  7. Plug the remaining coolant pipe with the GE-48494:  adapter kit plug and clamp (1).
  8. Apply 20 psi (138 kPa) pressure with J 24460-01:  pressure tester (4).
  9. Monitor the pressure tester gauge for 5 minutes and ensure that pressure remains at the specified value.
    • If the specified pressure cannot be maintained, disassemble the drive motor generator control module assembly and replace the coolant seal.
    • If pressure remains at the specified value, proceed to the next step.
  10. Remove all GE-48494:  adapter kit components.
    11. Fig 3: PIM Cover
    GM2175734Courtesy of GENERAL MOTORS CORP.
  11. Remove the PIM cover bolts (1).
  12. Remove the PIM cover (2).
    13. Fig 4: Accessory DC Power Control Module (APM) Terminal Fasteners & Cooling Surge Tank Stud
    GM2175732Courtesy of GENERAL MOTORS CORP.
    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.
  13. Install the HV dc APM terminal fasteners (1) utilizing a magnetic socket. Tighten the terminal fasteners to 9 N.m (80 lb in).
    14. NOTE: A service replacement PIM does not have the hybrid cooling surge tank stud installed. Install the stud when replacing the PIM.
  14. Install the hybrid cooling surge tank stud (2), if necessary. Tighten the stud to 9 N.m (80 lb in).
    15. Fig 5: Coolant Pipe Hoses
    GM2175730Courtesy of GENERAL MOTORS CORP.
  15. Install the coolant pipe hoses (1), if necessary.
    16. Fig 6: PIM Cover, Seal & Bolts
    GM2175731Courtesy of GENERAL MOTORS CORP.
  16. Install a new PIM cover seal (3).
    17. 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.
  17. Clean the sealing surface of the PIM cover as necessary.
  18. Position the PIM cover (2) onto the PIM ensuring the seal remains in place.
  19. Install the PIM cover bolts (1). Tighten the bolts to 5 N.m (44 lb in).
  20. Install the drive motor generator control module. Refer to Drive Motor Generator Control Module Assembly Replacement .
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