Primary Circuit Continuity Check
- Carefully insert a small straight pin in Green ignition module wire. Connect negative voltmeter lead to engine ground and positive voltmeter lead to pin in Green wire. Turn ignition switch to "RUN" position and measure voltage. Turn ignition switch to "OFF" position, remove voltmeter, and remove straight pin.
- If voltage was greater than 1.5 volts, proceed to Ground Circuit Continuity Check. If voltage was 1.5 volts or less, proceed to Ballast Resistor Check.