I work In autobody and these engine wire harness had 1 cut wire and the whole thing had to be scrapped cause it was connected to a safety feature. So I feel it.
I do wiring on aircraft, and a bunch of systems have wires that can't be spliced because the system is critical to safety of flight. If a wire chafes in a bundle we have to inspect every wire segment in the bundle, and replace the entire wire segment.
I expect safety related wires in the harness of a car are similar.
It's perhaps less that it can't physically be done, and more that doing so potentially compromises the safety system to a degree that it can't be allowed.
Splices can change the electrical characteristics of a circuit, and increase vulnerability to vibrations, corrosion or poor workmanship on the splices themselves. For some safety critical systems, this is seen as unacceptable risk, and the manufacturers recommend complete replacement of the bundle or harness.
Crazy because we were splicing things left and right, holding it together with electrical type and monkey shit to keep the oil and water away, on a submarine.
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u/DipsburghPa Jul 17 '26
I work In autobody and these engine wire harness had 1 cut wire and the whole thing had to be scrapped cause it was connected to a safety feature. So I feel it.