Power Probe III

I have had a power probe for years. Its the go to for all electrical.
I also have the circuit tracer from power probe. Will find an open/short in no time.
Both recquire a little practice.
The manuals that accompany the product are very useful.

Buy it, watch the videos and use it. No point repeating instructions when there are helpful videos online.
They are pretty tough, i left it on the deck of the hoist, and backed an f150 over it with the right front wheel. Somehow it survived. Not something i usually do.