Operation CHARM: Car repair manuals for everyone.

Ignition Coil Testing

1. Be sure ignition is "OFF".
2. Remove coil wire from coil.

Ignition Coil Primary Circuit:





Primary Circuit

3. Connect ohmmeter as shown. Reading should be approximately:

.84 - 1.02 ohms

Ignition Coil Secondary Circuit:





Secondary Circuit

4. Connect ohmmeter as shown. Reading should be approximately:

8,200 - 12,400 ohms