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COMPONENT TESTING

  1. Unplug the ISCM harness connector.
  2. Check for continuity of the ISCM coil, that is, between terminals 1 and 2 of the ISCM. The continuity should be 5–35 ohms at 68°F (20°C) from terminal 1 to terminal 2.
  3. Connect a 6V DC power source between terminal 1 and 2 of the ISCM harness plug, and check to be sure that the ISCM operates.

    WARNING
    Apply only a 6V DC or lower voltage power source. Application of a higher voltage could cause locking of the servo gears.

  4. If the ISCM fails any of these tests, replace the whole ISCM assembly with a new unit.

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