SEOUL, Jan 19 (Reuters) - Production of Hyundai Motor Co's Tucson sport utility vehicle resumed on Wednesday after being disrupted a day earlier by a one-day strike by temporary workers, a union official said on Wednesday. The stoppage was intended to help reinstate a union leader of contract-based workers who was fired for initiating a one-hour strike at the South Korean firm on December 15, union spokesman Kim Young-sup said.