4:555:39How To Test and Replace A Radiator Cooling Fan Switch - YouTubeYouTubeInicio del vídeo sugeridoFinal del vídeo sugeridoAnd it's really that simple just heat up the switch. And see if you have continuity the flip. SideMoreAnd it's really that simple just heat up the switch. And see if you have continuity the flip. Side is if you do not have a multi-meter. You'll hear a clicking noise.