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ISC Servo Test

  1. Connect voltmeter between terminal "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 needle reads 11V-13V with ignition switch on after momentary indication of 1V, needle indicates 6V-13V, ISC servo and position switch are operating normally. Turn ignition switch to "OFF" to remove voltmeter.
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