TOW-MINATOR Bluetooth 7 way tester explained clearly by a professional mobile RV technician. If you’ve ever dealt with trailer lights that work sometimes, brakes that don’t respond the same every trip, or a 7 pin connector you don’t quite trust, this video shows how proper trailer wiring diagnostics should be done—without guessing, parts swapping, or vague LED indicators.

In this walkthrough, I show exactly what the TOW-MINATOR tests on each circuit of a 7 way trailer wiring tester: running lights, left and right turn signals, brake signal, constant 12V power, and ground. You’ll see how each circuit is verified individually so you can answer simple but critical questions: Is the signal actually reaching the trailer? Is the voltage stable? Is the problem in the tow vehicle or the trailer?

This video also explains why Bluetooth matters for real-world RV electrical diagnostics. Instead of walking back and forth or relying on assumptions, you can monitor circuits remotely, confirm operation under load, and document results during service or inspections. That documentation matters when diagnosing towing electrical problems, explaining findings to a customer, or protecting yourself during an RV inspection.

I compare the TOW-MINATOR to basic LED testers and explain where simple tools stop being helpful. LED lights may tell you something is on, but do they tell you if the circuit is reliable? Do they confirm brake signal integrity? Do they help with trailer brake testing when issues are intermittent? This is where professional tools earn their place.

Who is this tool for? RV inspectors, mobile RV technicians, and serious DIYers who want accurate answers. Who is it not for? Anyone looking for a quick novelty tester or a shortcut around learning how trailer wiring actually works.

As a veteran-owned, diagnostic-first mobile RV technician, my goal is to help you understand the problem before replacing parts. If you’ve ever asked, “Is it the truck or the trailer?” or “Why does this only fail sometimes?” this video is for you. Subscribe for clear, no-hype RV inspection and electrical diagnostics content.

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