Ignition Coil: Testing and Inspection

Ingition Coil Not Operating Properly

Tools Required

- J39200 Digital Multimeter

1. Remove the ignition Coil. Refer to Ignition Coil and Ignition Coil Module Replacement Service and Repair.






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.

2. Connect an ohmmeter as shown.
- Use the high scale.
- If the reading is not infinite, replace the coil. Refer to Ignition Coil and Ignition Coil Module Replacement Service and Repair.






3. Connect an ohmmeter as shown.
- Use the low scale.
- The reading should be 0.1 ohms. If not, replace the coil. Refer to Ignition Coil and Ignition Coil Module Replacement Service and Repair.






4. Connect an ohmmeter as shown.
- Use the high scale.
- If the reading is not 5-25k ohms, replace the coil. Refer to Ignition Coil and Ignition Coil Module Replacement Service and Repair.