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ISC Motor

  1. Disconnect ISC motor connector. Check motor coil continuity between terminals No. 1 and 4. See Figure . Resistance should read between 5 and 35 ohms. If resistance is zero ohms or abnormally large, open or short circuit exists in motor coil. Replace ISC servo assembly.
  2. Connect four 6-volt DC batteries between terminals No. 1 and 4 of ISC motor connector to operate ISC motor. If motor does not operate, replace ISC servo assembly.