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Home >> Buick >> 2009 >> Allure CX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 3.8L - Introduction >> Repair Instructions >> Powertrain Control Module Replacement >> Removal Procedure
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Removal Procedure

  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (L26) .
  3. Remove the left front inner fender brace. Refer to FRONT FENDER UPPER DIAGONAL BRACE REPLACEMENT .
  4. Remove the air cleaner intake duct. Refer to Air Cleaner Inlet Duct Replacement .
    5. Fig 1: View Of Air Cleaner Housing, Bolts, PCM & Harness
    GM444496Courtesy of GENERAL MOTORS CORP.
  5. Remove the air cleaner housing cover screws (2).
  6. Remove the air cleaner housing cover (1).
  7. Without disconnecting the PCM electrical connectors, remove the PCM and the wiring harness from the air cleaner housing assembly (3).
  8. Disconnect the PCM electrical connectors and remove the PCM (4).
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