Operation CHARM: Car repair manuals for everyone.

Ignition Coil: Testing and Inspection





1. Pull out high-tension cord by gripping its cap.
2. Disconnect ignition coil coupler.
3. Measure primary and secondary coil resistances.

Ignition coil resistance (at 20°C, 68°F)
Primary :0.86 - 1.06 Ohms
Secondary: 11.2 - 15.2 k Ohms

4. If resistance is out of specification, replace coil with new one.