Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Removal & Installation
Disconnect negative battery cable. On all models, disconnect all ECM harness connectors. Locate ECM in vehicle. See ENGINE CONTROL MODULE LOCATION table. Remove bolts/nuts holding ECM brackets and remove ECM from vehicle. To install, reverse removal procedure.
| Application | Location |
|---|---|
| Optima & Magentis (Canadian) | Forward Of Center Console, Under Dash |
| Rio | Under Left Front Kick Trim Panel |
| Sedona | Under Right Front Passenger Floorboard |
| Sorento | Under Glove Box Near Right Front Kick Trim Panel |
| Spectra | Under Right Front Passenger Floorboard |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.