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Kamphiker's avatar
Kamphiker
Explorer
Apr 10, 2019

Lost 12V Ground 1 circuit Interior Lights, Ideas on finding

While Changing out Vent fan Motor in Lavatory I lost power to the circuit. This also includes 5 other Overhead Lights on same circuit. Fuse is not blown (I have a PD4645 Converter/ charger). In...
wnjj's avatar
wnjj
Explorer II
Apr 10, 2019
Kamphiker wrote:
Chris Bryant wrote:
If I am understanding you, you don’t have a shirt, you have an open ground.


I am not 100% Positive its just a "OPEN" ground due to measuring voltage on the negative side.

As Chris said, you are measuring the 12V through the filament of a light bulb or some other load that is trying to turn on but has no ground. Since there is no current flowing the voltage on both pins of the bulb is the same. Light bulbs are just tiny pieces of wire.

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