It will show you where your shorted wire is at.

I had a short some were that was causing my electric windows not to work. Took my car to two different shops both told me that it would cost $100.00 and hour and they couldn't guarentee me that they would be able to find the problem. My short was in a bundle of about 50 small wires so I got a few of false readings but it did lead me in the right direction. I finally figured out that the short was behind the dash. I certainly didn't want to take the dash off but as luck would have it there was enough slack in the shorted wire that I was able to pull it away from what it was shorting to and it has worked every since. If not for this tool I would have never been able to find where the shorted wire was at.

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