What was found
PDX- FLIGHT 2468 LEFT WINDSHIELD CAUTION IN FLIGHT AFTER COMPLETING THE CHECKING RESET PROCEDURE THE CAUTION EXTINGUSHED THE WINDISHELD REMAINED COLD TO THE TOUCH. INSPECTED AND FOUND LOOSE WIRE AT PRIMARY TEMP SENSOR ON CAPT'S WINDSHIELD TERMINAL BLOCK. TIGHTENED LOOSE WIRE CONNECTION AND COMPLIED WITH WINSHIELD/SIDE WINDOW TEMPERATURE CONTROLLER. ADJUSTMENT/TEST OPS CHECKS GOOD. NO PARTS REPLACED. AIRCRAFT RETURNED TO SERVICE.