headlite question

I believe the 4th picture above illustrates the only condition that you can have 12 volts on the ground side of the terminal with a good bulb intact.
The 2nd photo shows what the meter would read with a good ground, 0 volts

barbee6043 said

I can test at the headlight terminal where the NEW bulbs is inserted and I have current at ALL the bulb prongs, even the ground.

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barbee6043 said

Same thing at the low beam and high beam bulbs.

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barbee6043 said

I unplug the bulb and test the terminal and just the wire that should be hot is hot.

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