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Home >> Chevrolet >> 2005 >> Equinox LS, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 3.4L - Introduction >> Repair Instructions >> Powertrain Control Module (PCM) Replacement >> Removal Procedure
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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%. 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.
    IMPORTANT: It is necessary to record the remaining automatic transmission fluid life. If the replacement module is not programed with the remaining automatic transmission fluid life, the automatic transmission fluid life will default to 100%. If the replacement module is not programmed with the remaining automatic transmission fluid life, the automatic transmission fluid will need to be changed at 83000 km (50,000 mi) from the last automatic transmission fluid change.
  1. Using a scan tool, retrieve the percentage of remaining engine oil and the remaining automatic transmission fluid life. Record the remaining engine oil and the remaining automatic transmission fluid life.
  2. Fig 1: View Of PCM & PCM Bracket Assembly
    GM1371146Courtesy of GENERAL MOTORS CORP.
  3. Remove the powertrain control module (PCM) (1) and PCM bracket (2) from the battery box cover.
  4. Fig 2: Removing/Installing PCM & PCM Bracket
    GM1371147Courtesy of GENERAL MOTORS CORP.
  5. Remove the PCM bracket (2) from the PCM (1).
  6. Fig 3: View Of PCM, Connectors & Wire Harness
    GM1371148Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the PCM wire harness (4) from the battery box cover.
  8. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  9. Remove the PCM connectors (2) from the PCM (3).
  10. Remove the PCM (3) from the vehicle.