Wiring harnesses are the central nervous systems of modern vehicles. They’ve evolved far beyond simple bundles of wires and encroach on every system and every panel in both body and chassis. Conductors now carry data as well as power, but the common element is the need to terminate those conductors in some kind of electrical connector. They are normally trouble-free, but when they fail, the result is at best inconvenient and at worst, crippling to the motor vehicle. Why do they fail? Jim Anderton shows us one connector that simply didn’t measure up.

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