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.

2003 Kia Spectra Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Resistance Check

Using an ohmmeter, check resistance of primary coil. Connect one lead of ohmmeter to the positive (+) terminal and the other lead to the negative (-) terminal. If not within specification, replace coil.
Remember the unit has two coil assemblies, so both must be checked.

Primary coil resistance: 0.45~0.55 Ω @ 68°F (20°C)

Fig 1: Testing Primary Coil Resistance
Courtesy of KIA MOTORS AMERICA, INC.
Using an ohmmeter, check resistance of the secondary coil. If not within specification, replace coil. Remember that you must check resistance of both top and bottom secondary coils. If one is out of specification replace the whole unit.
Secondary coil resistance: 13~15 kΩ @ 68°F (20°C)

Fig 2: Testing Secondary Coil Resistance
Courtesy of KIA MOTORS AMERICA, INC.

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.