Temperature gauge not working

1969 JEEP CJ5
80,000 MILES • V6 • 4WD • MANUAL
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CHRISDOC
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It has one wire going to it. There is no voltage on the wire. The engine is not overheating but I would like to get the gauge working again. It is a gauge, not just a warning light.

My question is, should the gauge have 12 volts going to it all the time?
Sep 23, 2019 at 4:42 PM
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SCGRANTURISMO
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Hello,

There is only one wire going to the gauge as the wiring diagram with the temperature gauge circuit in it shows that I have included for you in the diagrams down below. If the gauge isn't working and there is no voltage in the wire, then this shows that the temperature sending unit/switch is bad and needs to be replaced. Please get back to us with how everything turns out.

Thanks,
Alex
2CarPros
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Sep 24, 2019 at 3:26 PM