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Do U-Scope? (Episode 6) 5 volt reference – Why not 12v

Do U-Scope? (Episode 6) 5 volt reference – Why not 12v

Uscope - https://www.aeswave.com/uScope-Master-Kit-p9622.html 5V reference circuits cause some of the most confusing “multiple sensor failure” diagnostics in modern vehicles. In this video I break down what 5V reference is, why it’s 5 volts, how the ECM/PCM uses it to...

Lets look at this again… Which Probe works best

Lets look at this again… Which Probe works best

www.aeswave.com Uscope - https://www.aeswave.com/uScope-Master-Kit-p9622.html Wyze Probe - https://www.aeswave.com/15-inch-WyzeProbe-for-Secondary-Ignition-and-COP-p8764.html Rotkee Probe - https://store.rotkee.com/en/lx1-coil-on-plug-probe.html In this video I...

Do U-Scope? (Episode 5) Attenuators – they are THAT important!!

Do U-Scope? (Episode 5) Attenuators – they are THAT important!!

Probes - https://www.aeswave.com/uMicroBackProbe-Minimum-impact-probe-for-high-density-connectors-p10709.html U scope - https://www.aeswave.com/uScope-Master-Kit-p9622.html Check out our website - sixstarautomotive.com If you’ve ever scoped an ignition coil, injector,...

Delorean calipers have never been so fun

Delorean calipers have never been so fun

Today we’re rebuilding the rear brake calipers on a DeLorean — a job that solves common issues such as dragging brakes, uneven pad wear, sticking pistons, and handbrake imbalance. The DeLorean’s rear calipers have some unique design quirks, including the integrated...

The automotive industry is not dying…

The automotive industry is not dying…

Everyone’s talking about how bad the automotive industry is right now — low pay, burnout, lack of respect, and technicians leaving the trade. But that’s only half the story. In this video, I talk about what’s really going on in the automotive world — and why it’s not...

Voltage Drop Diagnosis – The #1 Electrical Testing Skill You Need



Voltage drop testing is one of the most powerful yet misunderstood electrical diagnostic tools in the automotive world. In this video, we break down what voltage drop really is, how it works, and why it’s far more reliable than simple resistance checks. You’ll learn how to test voltage drop across circuits, spot hidden resistance, and diagnose issues like slow cranking, dim lights, or faulty grounds with confidence.

We’ll walk through real-world examples using multimeters, test leads, and shop-proven techniques so you can apply these skills immediately. Whether you’re chasing a parasitic draw or a charging issue, voltage drop testing will give you the answers you need without the guesswork.

📌 Topics Covered:

What voltage drop is and why it happens

Voltage drop vs resistance testing

Testing power and ground sides of a circuit

Real-world voltage drop examples in the shop

Common mistakes to avoid

🔧 This is a must-know skill for technicians working on modern vehicles. Get ready to diagnose smarter, not harder.

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