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Short Circuit somewhere in Wiring Harness 140-160

posted by  Will740turbo on  Sun Jul 18 01:06 CST 2021
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last visit: Wed Oct 22 16:09 CST 2014
[RELATED]

I can't speak to the 145 specifically, but my intermittent short in my 90 740 on one side's tail lamps led me to this conclusion:

It's better not to find the short, but the wire. Then replace that entire wire. If you can narrow it down to one specific section of that wire, you can run a shorter piece of wire, but it can be a lot of work to find an exact source of a short.

I am not sure the 145 has plastic disconnects like in the 80s and later cars, but if you can disconnect sections of the circuit to find the offending wire, that's what I would do. Even clipping the wire and leaving lots of room to reconnect it would narrow it down, but it isn't strictly necessary to do so.


Unless you have something cutting into your harness causing shorts in multiple circuits, there is no real benefit to finding the exact location of the short.






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