LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1809 (Hybrid/EV Control System) >> Repair Instructions >> Accessory DC Power Control Module Removal and Installation >> Installation Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Installation Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: APM, Coolant Seal And Fasteners
    GM1971296Courtesy of GENERAL MOTORS CORP.
  1. Install new accessory DC power control module coolant seal (3).
  2. Position the accessory DC power control module (2) onto the power inverter module ensuring the seals remain in place.
    3. CAUTION:

    Refer to Fastener Caution .

  3. Install the accessory DC power control module mounting fasteners (1). Tighten the mounting fasteners to 10 N.m (89 lb in).
    4. Fig 2: GE-48494 Adapter Kit And Related Components
    GM1971297Courtesy of GENERAL MOTORS CORP.
  4. Rotate the drive motor generator control module assembly onto the accessory DC power control module.
  5. Clamp GE-48494  adapter kitcomponents (2, 3) to a coolant pipe.
  6. Plug the remaining coolant pipe with GE-48494  adapter kitplug 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: PIM Cover And Retaining Bolts
    GM1971293Courtesy of GENERAL MOTORS CORP.
  10. Remove the power inverter module cover retaining bolts (1).
  11. Remove the power inverter module cover (2).
    12. Fig 4: 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 high voltage dc accessory DC power control module terminal fasteners (1) utilizing a magnetic socket. Tighten the terminal fasteners to 9 N.m (80 lb in).
    13. Fig 5: PIM And PIM Cover Seal
    GM1971291Courtesy of GENERAL MOTORS CORP.
  13. Install a new power inverter module 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 power inverter module cover as necessary.
  15. Position the power inverter module cover (2) onto the power inverter module ensuring the seal remains in place.
  16. Install the power inverter module cover fasteners (1). Tighten the fasteners to 5 N.m (44 lb in).
    17. Fig 6: DC Power Control Module Ground Strap And 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 .
scientia non olet · About LEMON Manuals