Primary Circuit Continuity
- Insert a small straight-pin in control module Green wire. DO NOT allow straight-pin to contact ground. Attach voltmeter negative lead to distributor base, and positive lead to pin in Green wire. Measure voltage with ignition switch in "RUN" position.
- If reading exceeds 1.5 volts, proceed to GROUND CIRCUIT CONTINUITY test. If reading is 1.5 volts or less, inspect wiring between control module and coil. After test, remove straight-pin.