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Home >> Chevrolet >> 2005 >> Corvette 2D Convertible, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls (Introduction) >> Repair Instructions >> Engine Control Module (ECM) 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.
  1. Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
  2. Remove the wheelhouse filler panel. Refer to Fender, Insulator, Liner, Brake Caliper Cooling Duct Replacement - Front in Body Front End.
    3. Fig 1: ECM Electrical Connectors
    GM1656723Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the ECM electrical harness connectors.
  4. Loosen but do not remove the ECM rear retaining fastener. Use the rear retaining fastener as an anchor for the outer bracket.
  5. Remove the front retaining fastener from the ECM.
  6. Reposition the ECM outer bracket.
    7. Fig 2: ECM & Mounting Bolts
    GM1656726Courtesy of GENERAL MOTORS CORP.
  7. Remove the ECM from the bracket and the vehicle.
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