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

    Fig 1: View Of PCM
    GM1576575Courtesy of GENERAL MOTORS CORP.
    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%. If the replacement module is not programmed with the remaining engine oil life, the engine oil will need to be changed at 5000 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. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure (RPOs L26/L32) or Battery Negative Cable Disconnect/Connect Procedure (RPO LS4) .
  3. Remove the left front inner fender brace. Refer to Brace Replacement - Front Fender Upper Diagonal .
  4. Remove the air cleaner. Refer to Air Cleaner Assembly Replacement .
  5. Disconnect the PCM electrical connectors
    6. Fig 2: Removing/Installing PCM
    GM1576577Courtesy of GENERAL MOTORS CORP.
  6. Remove the PCM from the air cleaner lower housing.
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