Toyota 89620-17020 IGNITER Assembly

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Unplug the wiring connector of the ignition coil from the distributor. Using a dry cell battery rated at 3 to 5 volts, connect the positive pole of the battery to the pink wire terminal and the negative pole to the white wire terminal. Caution: Using a battery of more than 5 volts will destroy the diodes, and applying voltage for more than five seconds will destroy the transistor in the igniter. Then, connect the positive probe of a voltmeter to the ignition coil negative terminal and the negative probe to ground. The voltmeter should indicate 7 to 10 volts. If it doesn't, replace the igniter.