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Sends a signal through the wire's insulation and drops the tone at the exact break — no stripping, no back-probing, no guessing
Works on 12–42V systems — trucks, trailers, RVs, boats, tractors, and heavy equipment
Finds opens and shorts a multimeter can't see, in minutes instead of weekends
3 Simple Steps
1
Connect the Transmitter
Clip the transmitter to the circuit you want to trace. No special setup, no stripping wires, no piercing insulation.
2
Follow the Tone
Run the wand along the wire. The signal gets louder as you approach the fault. Follow the tone through insulation, behind panels, along the frame rail.
3
Pin the Exact Spot
The tone drops out precisely where the break, short, or bad ground is. Open just that section. Fix it.
Find the Fault Fast
TrueTrace sends a signal through the wire and follows it to the exact break, short, or dead spot. No pulling apart the harness. No stabbing wires with a test light. Clip it on, follow the tone, and put your finger on the problem in minutes.
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Experts, Pros & DIYers
Our products are backed and used by professionals all around the world.
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The Bearded Mechanic
Born Again Boating
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Find Out Why 50,000 CustomersLove SolderStick
Gabriel
Verified Buyer
Using a heat gun they provided and it was super easy to slip it on, twist the wires and slip it back on to solder and seal in one swoop is wicked cool! Very happy! Gave them
William
Verified Buyer
Work excellent! Seal AND solder wires together! I just hit them for about 15 seconds with my heat gun till shrink tube shrunk then solder melted to wire leads...boom, done!
Brad
Verified Buyer
This solder sleeve works exactly how it is described & kills two birds with one stone of soldering wire as well as sealing the connection. It is a huge time-saver.
Kevin
Verified Buyer
After about 5 seconds the rubber material started to shrink. At about 9 seconds the solder started to melt & bond the wires. I gave the wires a firm tug & there were super tight.
Frequently Asked Questions
It tracks the wire path and points you toward the fault area fast, instead of making you test multiple points one by one.
No. If you can clip a lead and follow a beep, you can use it. Connect the transmitter to one end of the circuit, run the wand along the wire, and the tone leads you to the fault. Most people trace their first wire within a few minutes.
No cutting or piercing is needed. It helps trace wires without damaging insulation.
It works on most automotive wiring systems, including cars, trucks, trailers, and common electrical harnesses.
It can help locate breaks, shorts, open circuits, hidden wire paths, and fault points in wiring.
Our shipping typically takes 3-5 business days in the USA and 7-10 business days in other parts of the world.
If you are not completely satisfied, we are here to make it right.
We stand behind our products with a 90-day money-back guarantee.
Plus, our customer support team is always ready to assist with any questions or concerns.
Chasing an electrical fault by pulling panels apart is a waste of an afternoon. The SolderStick TrueTrace Circuit Fault Finder traces breaks, shorts, and opens in automotive wiring without removing interior trim or tearing into the harness — clip it onto the circuit, follow the signal, and pinpoint the fault directly.
TrueTrace is built for the exact problem DIYers and home mechanics run into most: a dead accessory, a flickering light, or a short that keeps blowing a fuse, with no visible sign of where the wire actually failed. Instead of guessing, trace the circuit and go straight to the damaged section.
Once you've found the fault, you're already set up to fix it — TrueTrace is available bundled with SolderStick's 100pc or 250pc waterproof solder wire connector kits, so you can diagnose and repair the wiring in one order instead of two. A 2-pack option is also available for anyone who wants a backup unit or is outfitting a second toolbox.
Available as: Single unit / 2x unit / bundled with 100pc or 250pc SolderStick Wire Connector Kit
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