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Ignition System: Testing: Module

  1. Turn ignition off. Remove distributor cap. Turn ignition on. Check voltage at ignition coil positive terminal, using a voltmeter. Voltage should be 12 volts.
  2. Check voltage at ignition coil negative terminal. Voltage should be 12 volts. Using a 1.5 volt dry cell battery, connect positive pole of battery to Pink wire terminal and negative pole to White wire terminal, for no more than 5 seconds.
  3. Check voltage at ignition coil negative terminal with battery connected, using a voltmeter. Voltage should be 0-3 volts. If system fails any of these test, replace module.
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