Due to some electrical problems I've been having, I've felt the need to test the continuity of wires between my car's head unit and the junction box. I'm doing this in an attempt to find a broken or shorted wire in the system. I'd assume that if I came across a wire with high, but not infinite resistance, it's likely to be the short. So far, I've come across no such single wire, but I have found that all the pink wires in the system [which i believe to be power(+)] are continuous with one another and show a resistance of ~700 ohms across all connections. Is this normal? and if not, does this mean that one of the power wires is the short I'm looking for?
My car has 80000 miles.
My car has an automatic transmission.
Hi there. If the vehicles electrical system has been altered with the addition of an aftermarket radio or anything else has been changed then it is hard to diagnose. I would need to see the colors of the wires to know where they go. If you know that the wires you are testing are a power supply wire then they should have no resistance in them. Keep in mind to properly test them they need to be isolated from the system which means that they need to be disconnected at both ends. If you do not do this then your readings will be incorrect.
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