How do you test geo storm ignition module?

To test a Geo Storm ignition module, first ensure the vehicle's battery is fully charged and the ignition is off. You can use a multimeter to check the voltage at the ignition module's power input terminal; it should typically read between 12-14 volts when the ignition is on. Next, check for continuity in the ignition coil and the wiring to the module, as well as any ground connections. If the module fails to produce spark or the readings are inconsistent, it may need replacement.