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ISC Servo

  1. Connect voltmeter between terminal No. 3 and injection mixer body. DO NOT  disconnect ISC servo connector. Turn ignition switch to "OFF" position then to "ON" position. While keeping ignition on for at least 15 seconds, check voltmeter reading.
  2. If voltmeter reads 11-13 volts with ignition switch on after momentary indication of 1 volt, needle indicates 6-13 volts, ISC servo and position switch are operating normally. Turn ignition switch to "OFF" to remove voltmeter.
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