Basic Wiring Question

[CHIN10]

Greetings!

It's been a while since I had my daily wrestling match with the electrical nightmare that was my 1987 Buick Grand National, so I may have forgotten a thing or two.

I wired up 2 pairs of DV8 cube fog lights on the hood and a pair of Baja fogs on the bumper. When I hook up a power wires to the cube light's positive wire, they give off tiny sparks (but doesn't pop the 30amp fuse). I see them if I gently rub the two positive connectors together. However, I don't get any sparks when I connect the Baja lights (or any other electrical connection like PowerSteps, rock lights, etc.) to the same power source.

I know I get some small sparks when I hook up battery terminals to a vehicle.

So I performed the following 2 tests after unplugging the wires at each light:

• I hooked up a test light to a power source and connected it to the wiring. It did not light up.
• I used a multi-meter to test for continuity with the ground. I got no measurement at all.

Question: Are the tiny sparks due to the power draw or is it because there's a ground in the power wire to the cube lights somewhere?

Am I missing a test?

Thanks in advance for your help!
-Chin10

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[GATORB8]

The spark is the current completing the circuit. Just means the switch is on and your light is already grounded.

 

[CHIN10]

Excellent, thank you GATORB8!

-Chin10

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