groundhogy wrote: I didn’t try measuring that since it is a 2 wire situation.
Ground matters in this situation?
Yes one wire is positive and has volts which you measured, the other should be the ground wire. Set your meter to ohms and measure from the terminal to the engine block and see what you get, if anything.
THe other is ground and measures about 10 ohms from it to something on the block.
When I ground and open the +5v line the gauge reads zero hot to pegged hot (grounded).
If you set your meter to ohms and touch the positive and negative lead together what do you read? This is what you should read when you touch the terminal end to the engine block to check ground. Your meter may be off some that is why I say it should be the same.
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