SG Tool Aid 25100 Short Tester

I saw this tool on a You Tube video and how it is used...bought one for myself. First time I used it, I found a shorted wire bundle where a careless body shop mechanic cut into the bundle when replacing the floor board in my 56' Chevy. With all new wiring...a short was not what I expected. This tool found it without any problem! Liked it so much...bought. one for my brother who was chasing a short the old way...to no success. He got nailed with a 510.00 repair bill before he received his testor! He has since used it and loves it too. Great tool, great price, fast delivery.

Take your victories where you can :) Been looking for a short in the parking lamps on my 2004 Lincoln Town Car for like 6 weeks, probably spent 50 hours on it and replaced all kinds of parts, disconnected everything I could, etc. Anyway, this little sucker works by pulsing some current through the fuse slot that was blown. Hooked it up and started to look around, since I could disconnect everything except for the wiring to the headlights I started there. Looking at the connector to the headlights I swore I saw a little flicker of light, stared at it for a while and there it was again. Turns out the connectors in the connector were a little messed up and were intermittently touching each other, so it wasn't the gauge with the short finder that found it, but the capacitor sent the current and I visibly saw the hot spot where they were connecting. Problem solved, so it helped, just not how it was originally intended. Success story anyway.

I prefer the Power Probe ECT2000 Short Open Circuit Detector to this one. Both accomplish the same task. Neither is really user friendly, but just help with your troubleshooting. This short finder works. it tells you the direction of the ground using the needle. The ECT2000 has an arrow light that tells you the same thing along with a beep if there is current flowing. For me, I was frustrated finding an intermittent short. I found out afterwards that the short only happened while turning the steering wheel in my car. In this circumstance I found a light bulb that had no current so I hooked up the ECT2000 to the light bulb socket, and traced how far the current would go backwards. The SG tool aid couldn't help me at all, but the ECT2000 could. Granted, the ECT2000 is much more expensive, so if you have a constant short or a fuse that blows right away after replacing, this is what you need.

This works Perfect. My wife's Escalade kept blowing the fuse for the rear back up camera. The dealership couldn't tell me for sure how much it would cost to fix as it was an hourly rate and searching out the electrical problem could take 1 hour upto 8 hours. I bought this and anxious to try it out, I went to the main harness and began to go forward. After passing another harness that fed off of the main line the needle started pointing the other way so, I knew I had passed the short. Went back to the other wiring harness and it just kept leading me directly to the short. I couldn't immediately see the short as it was on the bottom side of a wire resting on the alternator. Once I picked the wire up and saw the wear, I taped it, replaced the fuse and it worked. No other problems. This $32 tool and 5 minutes saved me money and the biggest thing... It saved the inconvenience of leaving my wife's car in the shop until it could be fixed. Highly Recommend this Gadget.

This is an inexpensive but effective tool for testing and tracing automotive electrical shorts. Without this tester, you could be replacing the fuses on your vehicle all day long. You put this short tester in place of the fuse of the suspected short circuit and it will trip the tester causing it to reset itself in a few seconds. Each time it re-sets itself, you can use the Amp meter to trace the direction of the short wire. Great little tool to have in your tool box.

It served the purpose of helping me get my car running again, but not in the way it was supposed to work. My 15 amp ignition fuse kept blowing as soon as I turned the key to ignition. I even tried a 30 amp fuse. I put the breaker in place of my ignition fuse of my 1996 geo metro, and at first the breaker was working as it was supposed to, by breaking and resetting. But, then it stopped breaking, and I was able to keep the car running using the breaker in place of the ignition fuse. I waited to get a DC amp meter to measure the current before I finally replaced the fuse again. My theory is that the breaker burned the short out that was in the headlight switch. The headlight switch no longer works in the headlight position, but still works in the running position, and the only way to get high beam is in the flash position. I previously had the same problem with the switch that I had replaced, but at the time, I didn't know that the switch had burned out as a result of a short. As for using the meter, you might want to be aware that you will get false positives, such as, it will react to magnetic fields, like the magnets in your speakers.

This short tester saved the day and a few hundred dollars in service on my Ford truck. I had a very difficult time finding a short on my truck. I used a fuse socket adapter, which makes it easier to attache the circuit breaker included with the tester to the fuse box. The circuit breaker takes the place of the fuse for testing, I tracked down the the hidden short within a half hour by moving the ammeter over the wires associated with that fuse. The meter fluctuates left to right, and centers over the suspected short. Turns out that I had a loose wiring loom rubbing against a brake line. Over time the brake line wore through the loom and into a wire associated with the speed sensor. The intermittent shorting of this wire caused my speedometer to stop operating and my transmission to stop shifting. A few repair shops told me that my transmission was bad, this was not the case, after the short was fixed I had no further transmission/speedometer issues.

Built solid, and unlike many products it will actually fit back into the included case after its 1st use! Our local Snap-on dealer carries this model and the slightly more expensive 25300 model. A good indication of its build quality and dependable performance. Unfortunately for me it would not detect my electrical problem, which may be in the PCM (control module) of the truck and is not a complete dead short (about 5 amps) and thus does not generate the heat required to activate relay in the tool and more importantly generate the magnetism in the circuit to allow detection by the meter. Regardless I am keeping it! As always with amazon delivered quickly.