Ignition Coil: Testing and Inspection

Ignition Coil Not Operating Properly

Tools Required: J 39200

1. Turn OFF the ignition switch.
2. Disconnect the distributor lead and wiring from the ignition coil.

Notice: Do not insert the J 39200 digital multimeter probe into the ignition coil connectors. The female terminals could be deformed, resulting in intermittent operation. Only make contact with the front edge of the terminals.

Ignition Coil Test:

3. Connect an ohmmeter as shown.
^ Use the high scale.
^ If the reading is not infinite, replace the coil.

Ignition Coil Test:

4. Connect an ohmmeter as shown.
^ Use the low scale.
^ If the reading is not 0.1 ohms, replace the coil.





5. Connect an ohmmeter as shown.
^ Use the high scale.
^ If the reading is not 5-25 ohms, replace the coil.
6. Reconnect the distributor lead and wiring to the coil.