How to Test a Car Battery? To measure battery load, conduct three voltage tests with the multimeter. Start the first test by making sure the vehicle is turned off. Multimeters have two probes: red and ...

But, if you don’t have a multimeter, here’s another way to test an ignition coil, with an ignition tester system. It’s inexpensive and works for any small engine.

The AEM C2DI is the lightest (1.5lbs), smallest (5.5" x 4.625" x1.375") and most cost-effective ignition module on the market. This unit is available in four- and eight-channel configurations, and ...