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Home >> Pontiac >> 2005 >> Bonneville SLE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.8L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure

Removal Procedure

    IMPORTANT: It is necessary to record the remaining engine oil life. If the replacement module is not programed with the remaining engine oil life, the engine oil life will default to 100 percent. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5 000 km (3,000 mi) from the last engine oil change.
  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: View Of 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: View Of PCM Connectors, PCM, & PCM Housing
    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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