2011 Cadillac Escalade EXTFACTORY OEM SERVICE PROCEDURE

Installation Procedure

WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. 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. NOTE: Refer to Fastener Notice .
  3. Install the APM mounting fasteners (1).

    Tighten:  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 the GE-48494  components (2, 3) to a coolant pipe. See Special Tools .
  6. Plug the remaining coolant pipe with the GE-48494  plug and clamp (1). See Special Tools .
  7. Apply the specified pressure with J 24460-01  (4).

    Pressure:  Apply 20 psi (138 kPa) pressure.

  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  components. See Special Tools .
    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 electronics cover (2).
    12. Fig 4: Identifying HV DC APM Terminal Fasteners
    GM1971292Courtesy of GENERAL MOTORS CORP.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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