Ground Circuit Continuity Check
- Insert a small straight pin in control module Black wire. Attach voltmeter negative lead to distributor base and positive lead to straight pin in Black wire. With ignition switch in "RUN" position, measure voltage.
- If voltage reading was greater than 0.5 volt, proceed to DISTRIBUTOR GROUND CIRCUIT CONTINUITY CHECK. If voltage was 0.5 volt or less, replace control module.