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Home >> Cadillac >> 2004 >> CTS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.7L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Installation Procedure
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Installation Procedure

  1. Install the PCM to the vehicle.
  2. Install the PCM wiring harness.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
    Fig 1: Tightening PCM Electrical Connector Screws
    GM1412209Courtesy of GENERAL MOTORS CORP.
  3. Tighten the PCM electrical connector screws (1).

    Tighten:  Tighten the PCM electrical connector bolts to 8 N.m (71 lb in).

  4. Install the PCM to the PCM housing.
    5. Fig 2: Installing Bolt To PCM Cover Housing
    GM1412206Courtesy of GENERAL MOTORS CORP.
  5. Install the PCM housing cover.
  6. Install the bolt (1) to the PCM cover housing.

    Tighten:  Tighten the PCM housing cover bolt to 10 N.m (89 lb in).

    7. Fig 3: View Of Front Air Deflector And Push Pin retainers
    GM699902Courtesy of GENERAL MOTORS CORP.
  7. Install the front air deflector. Refer to Air Deflector Replacement - Front in Body Front End.
  8. Lower the vehicle.
  9. Connect the battery negative cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  10. Program the PCM. Refer to Service Programming System (SPS) in Programming.
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