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Old January 10th, 2017, 05:46 PM
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AZKen AZKen is offline
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Default Re: trouble shooting turn signal switch

Make sure the fuse associated with that circuit is not too big or the wiring is not too small. Wiring must be "matched" to fuse size. A short should blow a fuse way before smoke/melt. That's why I asked about the smoke. Like where is it coming from exactly? etc. A fuse should be protecting. It is possible that a component has resistance, not shorted, and is causing heat. Flasher, switch, bad connection. A voltage drop test may help. If a hot exhaust manifold has burnt almost thru a wire, it won't carry the current, but not shorted. A broken wire, same thing, but not shorted. If it was a short it should blow a fuse. That's what fuses are for. Usually those bulbs wouldn't still blink with a shorted wire. I still say bulb or ground issue. Hopefully Tex comes back. He knows what he's doing with trucks. He'll find it.
A person can switch the connections temporarily from right to left to see if the problem follows.

Last edited by AZKen; January 10th, 2017 at 06:01 PM.
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