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

  1. Ensure ignition is off. Disconnect negative battery cable. Locate PCM at left front corner of engine compartment. See Fig 1. Release PCM cover from mounting tabs on PCM bracket.
  2. Remove PCM cover from PCM. Loosen PCM harness connector bolts. See Fig 2. Disconnect PCM harness connectors. Release the PCM spring latch. Release PCM mounting tabs. Remove PCM.
Fig 1: Locating PCM
G00156231Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing/Installing PCM
G00156232Courtesy of GENERAL MOTORS CORP.
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