Can I safely assert 12v to the temp sensor meter lead to test if it the guage itself works or not?
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Trollhole said:Not the lead that goes to the sender. It's basically the ground wire. The other side of the guage you could put 12v+ to it to test. Generally I just ground the sensor wire to test. And check the guage for 12v supply
pbgbottle said:exactly , just ground the wire at the temp sender ( engine block sender) and watch it rise .Question ? if you ground the wire and hold it there to long will it fry the dash guage ? just curious