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Home >> Cadillac >> 2003 >> Seville SLS >> Repair and Diagnosis (Single Page) >> Engine Performance >> Remove, Overhaul & Install >> Engine Controls - Removal & Installation >> Computerized Engine Controls >> Powertrain Control Module >> Removal (DeVille)
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Removal (DeVille)

  1. PCM is located on left side of engine compartment, inside air filter assembly. Record the Transaxle Fluid and Engine Oil Life Indexes. Turn OFF the ignition. Remove the rear seat cushion. Disconnect the negative battery cable. Disconnect the Mass Air Flow/Intake Air Temperature (MAF/IAT) sensor electrical connector.
  2. Loosen the air cleaner intake duct at the throttle body. Loosen the air filter element/PCM housing cover screws. Remove the air filter element/PCM housing cover, MAF/IAT sensor, and air cleaner intake duct. See Figure. Disconnect both PCM connectors. Remove the PCM.
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