Because of the high voltage produced by the distributorless ignition system and to avoid overstressing the coil/module, an inductive or neon type spark tester should be used to check for spark. These tools are commonly available at most auto parts stores. Follow the tool manufacturer's instructions to test for spark.
- Remove the ignition coil(s).
- Using an ohmmeter, check the resistance between the primary terminals on the underside of the coil. The resistance should be 0.50-0.90 ohms.
- Check the resistance between the secondary terminals. It should be 5000-10,000 ohms.
- If the coil failed either test, replace the coil.