Primary Circuit Continuity Check

Insert a small straight pin in control module Green wire. Connect negative voltmeter lead to distributor base, and positive lead to pin in Green wire.
With ignition switch in "RUN" position, measure voltage. Turn ignition switch "OFF" and remove straight pin from Green wire.
If voltage reading was greater than 1.5 volts, proceed to "GROUND CIRCUIT CONTINUITY CHECK ". If voltage reading was 1.5 volts or less, replace control module.

Fig 1: Components Of Dura-Spark II Distributor
Courtesy of FORD MOTOR CO.

Reluctor shown, having 8 teeth, is for V8 engine.