WARNING: This page is about a different car, the 2005 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

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.

Using a scan tool, retrieve the percentage of remaining engine oil. Record the remaining engine oil life.
Remove the wheelhouse filler panel. Refer to Fender, Insulator, Liner, Brake Caliper Cooling Duct Replacement - Front in Body Front End.

Fig 1: ECM Electrical Connectors

Courtesy of GENERAL MOTORS CORP.

Disconnect the ECM electrical harness connectors.
Loosen but do not remove the ECM rear retaining fastener. Use the rear retaining fastener as an anchor for the outer bracket.
Remove the front retaining fastener from the ECM.
Reposition the ECM outer bracket.

Fig 2: ECM & Mounting Bolts

Courtesy of GENERAL MOTORS CORP.

Remove the ECM from the bracket and the vehicle.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Removal Procedure

Use the Manual With the Right Hardware

When to See a Mechanic

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