Another cool "new" old tool

I saw this tool used in a YouTube video and thought it was pretty sick. While it is not the most modern option for Short Finding it is pretty cool to have old tools handy that still have a place in this modern automotive world. This is another tool not mentioned by name in a video that required me to use the snipping tool and do a google image source to locate.

The gauge shows a direction of current flow when you hold it close to a wire harness that somewhere along the line has a short to ground.

How does it work?

"Placing a load (like a light or motor) in place of a fuse acts as a series current limiter, allowing you to troubleshoot short circuits without constantly blowing fuses. If the load turns on, it indicates a short exists; if it stays off, the short is cleared."

You then run this analog gauge along the harness which shows the direction of the flow until you find the short to ground or the general area of one. Once you get close these things are usually obvious upon closer examination.

Alternative options:

• buzzer and thermal imager?

• Check Engine Chuck Load Cell

• Jarhead Diagnostic load test light and short finder ( buzzer )