The Most Controversial Tool in Automotive Electrical Diagnostics [E245]

The Most Controversial Tool in Automotive Electrical Diagnostics [E245]

July 15, 2026 · 23 min · Episode 245

About this episode

Matt discusses the controversial nature of powered circuit testers in automotive diagnostics and reflects on leadership challenges.

Thanks to our Partners, Pico Technology, and Autel Watch Full Video Episode Powered circuit testers tend to produce strong opinions. Some specialists consider them indispensable time-savers. Others see them as dangerous tools that make it far too easy to damage a circuit. In this episode, Matt examines where tools such as the Power Probe, Autel powered circuit tester, and metered test lights fit into an automotive diagnostic process. The ability to apply power or ground can be dangerous without an understanding of the circuit, but the same can be said of jumper wires, scan tools, oscilloscopes, and nearly every other useful diagnostic tool. Matt also opens the episode with thoughts on the unexpectedly short Conor McGregor and Max Holloway fight. Rather than focusing only on the disappointing result, he considers the discipline and preparation required to attempt something difficult, even when the attempt ultimately fails. That leads to a broader shop question: How should a leader respond when a capable employee puts in the work, takes on a difficult task, and still comes up short? In This Episode The difference between a powered circuit tester and a metered test light Why Power…

People in this episode

Host: Matt Fanslow

Topics covered

Sponsors

Pico Technology, Autel

Mentioned in this episode

Products: Power Probe, Autel powered circuit tester, Power Probe III

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