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Home › Pontiac › 2004 › Bonneville SLE › Repair and Diagnosis › Engine Performance › System › Engine Controls (Introduction) -- 3.8L (L36 And L67) › Repair Instructions › Powertrain Control Module (PCM) Replacement › Removal Procedure

Removal Procedure

  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Turn OFF the ignition.
  3. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  4. Remove the intake duct. Refer to Air Cleaner Intake Duct Replacement .
    5. Fig 1: Upper Air Cleaner Housing Assembly & Screws
    GM481272Courtesy of GENERAL MOTORS CORP.
  5. Remove the 2 screws (2) from the upper and lower air cleaner assembly sections.
  6. Remove the upper air cleaner housing assembly (1).
    7. Fig 2: PCM Connectors, Housing & PCM
    GM481275Courtesy of GENERAL MOTORS CORP.
  7. Without disconnecting the PCM connectors (1), remove the PCM (3) and harness from the PCM housing (2).
  8. Disconnect the PCM connectors (1).
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