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The Value of Voltage Drop Testing


Voltage-Drop_Test_620We visit another common tool in the technician’s arsenal for diagnosing parasitic draws and other electrical maladies: voltage drop testing. In this month’s iATN spotlight, Roger from New York shows how he used voltage drop testing to diagnose a faulty relay after several other diagnostic techniques failed to pinpoint the source of the issue.

He wrapped his post with this statement: “I hope this long boring read can help someone understand the value of voltage drop testing and how valuable it is to have a firm understanding as to how electricity works.” We think he accomplished his goal. Great post Robert!


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About iATN
The International Automotive Technicians Network is the largest network of automotive repair professionals in the world: a group of 80,000+ automotive professionals from over 160 countries. The members of this group exchange technical knowledge with their peers around the globe, sharing 1.8 million years of experience. iATN has been proudly serving the automotive service and repair industry and the needs of professional automotive mechanics around the world, for over 15 years.

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