Ignition Coil Resistance Check

1. Using an ohmmeter set in the low scale, connect the leads to the positive and negative primary terminals of the ignition coil. See Fig 1. Resistance reading should be 0.75 - 0.81 ohm.
2. Change ohmmeter to the x1000 scale and connect leads to coil negative terminal and coil center tower. See Fig 1. Resistance should be 10, 000-11, 000 ohms.
3. If either reading is not to specifications, replace ignition coil.

Fig 1: Ohmmeter Hookup for Ignition Coil Primary and Secondary Resistance Check

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If not to specifications, replace coil.