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International Automotive Technicians Network
Re: Test light upgrade
Posted to Technical Tips Forum on 3/2/2019

I just had a Whelen emergency flashing light not working on one of my trucks. Fluke 88 said 12 volts and it was even flashing on the bar graph. Hooked up old Craftsman test light, no dice. Turned out to be green death in a factory splice under the truck. Test ... Login to read more.