Fried some wires, What to do next? |
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Fried some wires, What to do next? |
john77 |
Apr 17 2014, 05:05 PM
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#1
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Senior Member Group: Members Posts: 621 Joined: 21-February 14 From: Los Angeles Member No.: 17,027 Region Association: Southern California |
Okay, before anyone else says it, yes, I'm an idiot. Now we have that out the way...
I've been trying to troubleshoot to figure out why my horn isn't working. Last night I thought I'd narrowed it down to the switch and then as I was looking at the wiring diagram my brain had a bright idea. I figured if I jumped a wire from 30 to 87 on the horn relay base it would bypass the need for the solenoid to be triggered thus bypassing the need for the switch, and if everything else in the circuit was working the horns should sound. So I just tried it and they didn't. (Was I wrong?) Then, and now I've stopped to think about it I have no idea why, I decided to take that wire out and instead jump it from 85 to 86 and... puff... a cloud of smoke wafts from under my dash and I quickly turn off the ignition. On closer inspection I've melted the brown wire (that haynes says should be brown/white) and the red/white wire that both go into the relay base. And I also noticed a brown wire attached to the ground by the fuse box has a blister in it too, although I'm not sure how those two things are connected? So, what did I do and what do I need to do next? And why didn't fuse 8 pop and save me from myself? Any advice much appreciated. Thanks John |
Tom |
Apr 19 2014, 05:29 PM
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#2
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Advanced Member Group: Members Posts: 2,139 Joined: 21-August 05 From: Port Orchard, WA 98367 Member No.: 4,626 Region Association: None |
Yes, if you jumped 86 to 85 on J-13, that would short key switched + to ground. In other words, if the jumper were there and one turned the key switch to ON, a direct short ( un-fused ) would happen. So no fuse to blow and the wire becomes the fuse.
Sorry if I also misunderstood, and hope you find the problem soon. Sounds like it is fairly localized. With our cars that is a very good thing. Tom |
john77 |
Apr 19 2014, 09:42 PM
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#3
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Senior Member Group: Members Posts: 621 Joined: 21-February 14 From: Los Angeles Member No.: 17,027 Region Association: Southern California |
Yes, if you jumped 86 to 85 on J-13, that would short key switched + to ground. In other words, if the jumper were there and one turned the key switch to ON, a direct short ( un-fused ) would happen. So no fuse to blow and the wire becomes the fuse. Sorry if I also misunderstood, and hope you find the problem soon. Sounds like it is fairly localized. With our cars that is a very good thing. Tom No problem Tom, I'm a novice when it comes to electrics and I appreciate your advice. I got lucky with the wiring. I removed the bottom of the dash and the headlight switch and pulled it out through the air vent hole, which allowed me to easily check the other wires around the fried red/white. It had melted up by the switch too but none of the other wires were affected. I decided to cut out the whole length of it and add in a new piece of wire from the relay to the switch, did the same to the ground and everything's working fine. Now all I have to do is figure out what's wrong with the horn (IMG:style_emoticons/default/biggrin.gif) It's actually been a very useful exercise as my next project is to fully refurb my dash, so figuring out how to pull the switches and getting a good look at how the basket weave's attached will give me a head start on that. |
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