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.
2004 Hyundai Tiburon Base, StandardFACTORY OEM SERVICE PROCEDURE
ECM Problem Procedure
- Turn ignition switch to OFF.
- Disconnect ECM connector, measure the resistance between ground terminal on the ECM side (terminal 1, 2) and chassis ground.
- Inspect connector connection and check terminal for poor connections, loose wires, bent or broken pins and corrosion.
- If it is abnormal, repair it. If it is normal, the ECM could be faulty.
- Temporarily install a good ECM and check for proper operation. If problem disappeared, replace ECM.
Factory Service Tools
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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.