TM 10-3930-669-20 14.  STOPLIGHT DOES NOT OPERATE (CONT). KNOWN INFO TEST OPTIONS Horn operates. Wire 27 OK. Brake switch OK. Wire 27A OK. Continuity test. STE/ICE-R #91. POSSIBLE PROBLEMS REASON FOR QUESTION Stoplight lamp faulty. Stoplight faulty. If   continuity   is   not   present, lamp   is   faulty.      If   lamp   is OK, stoplight is faulty. 2-200

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