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.
Ignition Coil Power Source
Ensure ignition is off. Disconnect ignition coil harness connectors. Turn ignition on. Check for battery voltage at ignition power source wire. To identify wire, see IGNITION COIL POWER SOURCE table. On all models, if battery voltage is not present, check battery feed circuit, main fuse, ignition switch and wiring harness.
| Application | Coil (+) Terminal Wire Color | |
|---|---|---|
| Optima & Magentis (Canadian) | Pink/Black | |
| Rio | ||
| Coil 1 | Yellow/Green | |
| Coil 2 | Yellow | |
| Sedona | Red | |
| Spectra | Yellow | |
| Sportage | White/Red | |
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.
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