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Primary Circuit Continuity

  1. 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.
  2. 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.
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