Automotive Electrical Open & Short Finder — Circuit Tester, Tone Generator and Wire Breaker Tracker Probe A practical diagnostic tool for locating open circuits, short circuits and broken wires in automotive electrical systems. This combined tone generator, circuit tester and probe cable helps technicians and DIYers trace wiring faults quickly and accurately so repairs take less time and produce more reliable results. Key benefits Find faults fast: locates open and shorted wires, intermittent breaks and poor connections without extensive disassembly. Nondestructive tracing: tone generator and probe let you follow a wire's path through harnesses, panels and connectors. Saves time and cost: reduces trialanderror, limiting unnecessary part replacement and labor. Simple to use: straightforward connections and audible tone detection make fault location accessible to experienced technicians and home mechanics. Core features and attributes Functionality: Open & short finder, circuit tester, tone generator, cable wire breaker tracker and probe in one tool. Compatibility: Designed for automotive electrical systems and common vehicle wiring harnesses. Suitable for a wide range of cars and light trucks. Construction: Probe and lead design for safe handling; insulated cables and connectors for reliable contact and basic protection during use. Portability: Handheld and portable format for and field use. Performance: Provides audible tone tracing and circuit continuity detection to pinpoint wiring faults more precisely than visual inspection alone. How it works Connect the tone generator to the circuit or wire you want to test. The generator injects an audible signal into the wire; use the probe to follow the tone along the harness and through connectors. Where the tone drops or changes, you can identify breaks, shorts or poor connections and focus efforts there. The same setup can be used as a basic continuity tester to confirm open circuits. Typical applications Locate a broken door or window harness wire causing intermittent power or nonfunctioning switches. Trace a short circuit that blows fuses or causes lights to fail, to find the section of wiring that needs . Identify speaker or accessory wiring during stereo replacement or aftermarket electrical installations. Practical tips Make secure connections to the wire or circuit before applying the tone. Use the probe to scan harness bundles, connector pins and grommet areas where wiring is often damaged. Refer to vehicle wiring diagrams and observe standard safety precautions (isolate circuits when required). Who this is for Automotive technicians, service shops and DIY mechanics who need a reliable, portable solution for tracing and diagnosing wiring problems. The tool is ideal for routine diagnostics, work and preinstallation checks. Compact, easy to carry, and focused on the core tasks of tracing and testing automotive wiring, this open & short finder circuit tester with tone generator and probe is a useful addition to any automotive diagnostic toolkit.