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Home >> Cadillac >> 2011 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1596 (Hybrid Controls - Repair Instructions) >> Repair Instructions >> Accessory DC Power Control Module Removal and Installation >> Installation Procedure
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Installation Procedure

WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of APM, Coolant Seal & Fasteners
    GM1971296Courtesy of GENERAL MOTORS CORP.
  1. Install new APM coolant seal (3).
  2. Position the APM (2) onto the PIM ensuring the seals remain in place.
    3. CAUTION: Refer to Fastener Caution .
  3. Install the APM mounting fasteners (1). Tighten the mounting fasteners to 10 N.m (89 lb in).
    4. Fig 2: Identifying GE-48494 Adapter Kit & Related Components
    GM1971297Courtesy of GENERAL MOTORS CORP.
  4. Rotate the drive motor generator control module assembly onto the APM.
  5. Clamp GE-48494:  adapter kit components (2, 3) to a coolant pipe.
  6. Plug the remaining coolant pipe with GE-48494:  adapter kit plug and clamp (1).
  7. Apply 20 psi (138 kPa) pressure with J 24460-01:  pressure tester (4).
  8. 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 seals.
    • If pressure remains at the specified value, proceed to the next step.
  9. Remove all GE-48494:  adapter kit components.
    10. Fig 3: Identifying PIM Cover & Retaining Bolts
    GM1971293Courtesy of GENERAL MOTORS CORP.
  10. Remove the PIM cover retaining bolts (1).
  11. Remove the PIM cover (2).
    12. Fig 4: Identifying HV DC APM Terminal Fasteners
    GM1971292Courtesy 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.
  12. Install the HV dc APM terminal fasteners (1) utilizing a magnetic socket. Tighten the terminal fasteners to 9 N.m (80 lb in).
    13. Fig 5: Identifying PIM Cover Components
    GM1971291Courtesy of GENERAL MOTORS CORP.
  13. Install a new PIM cover seal (3).
    14. 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.
  14. Clean the sealing surface of the PIM cover as necessary.
  15. Position the PIM cover (2) onto the PIM ensuring the seal remains in place.
  16. Install the PIM cover fasteners (1). Tighten the fasteners to 5 N.m (44 lb in).
    17. Fig 6: Identifying Ground Strap & Bolt
    GM2008829Courtesy of GENERAL MOTORS CORP.
  17. Install the ground strap (2) and bolt (1). Tighten the bolt to 22 N.m (16 lb ft).
  18. Install the drive motor generator control module. Refer to Drive Motor Generator Control Module Assembly Replacement .
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