Red wire with some crispy insulation.... |
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Red wire with some crispy insulation.... |
advman89 |
Feb 28 2022, 09:09 PM
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#1
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Member Group: Members Posts: 120 Joined: 8-July 19 From: Chicago, IL Member No.: 23,286 Region Association: Upper MidWest |
I'm in the depths of a full dash replacement and I'm need to figure out a situation.
I have a couple things to address. FUSE 11 (Hazard / Interior Light) has never worked-dead short immediately. I thought I remember someone saying that I need to look at the ground under the passenger seat and the passenger door switch as possible issues there. But I also have a some weirdness with the Hazard too... There is a new square relay installed and some wires cut in from the factory hazard switcher. The turn signals are all working, but I need to get the hazards operational. And on top of that, I discovered this red wire, long melted...will splice in a new wire, but thought the group might be able to point me in a direction. I know I have a color wiring chart...off to the archives for it to start looking for things. |
advman89 |
Mar 2 2022, 08:21 AM
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#2
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Member Group: Members Posts: 120 Joined: 8-July 19 From: Chicago, IL Member No.: 23,286 Region Association: Upper MidWest |
I checked all the adjacent wires and there are no breaks.
The wire comes from the main supply near the fuse panel and is the supply for the plug near the middle of the dash (you can see a pic of that in the first posts). I know the ignition was swapped at some point by the PO and nothing was secured well when I got it. I am speculating that there might have been a opening in the wire and it shorted under the dash. I've looked everything else over and can't find any evidence of any further melting. As for my Fuse 11 issue...haven't sorted that yet. This wire wasn't connected to the fuse panel. |
Superhawk996 |
Mar 2 2022, 08:48 AM
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#3
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914 Guru Group: Members Posts: 5,823 Joined: 25-August 18 From: Woods of N. Idaho Member No.: 22,428 Region Association: Galt's Gulch |
I checked all the adjacent wires and there are no breaks. The wire comes from the main supply near the fuse panel and is the supply for the plug near the middle of the dash (you can see a pic of that in the first posts). I know the ignition was swapped at some point by the PO and nothing was secured well when I got it. I am speculating that there might have been a opening in the wire and it shorted under the dash. I've looked everything else over and can't find any evidence of any further melting. As for my Fuse 11 issue...haven't sorted that yet. This wire wasn't connected to the fuse panel. I'm a dope because I can't visualize your exact setup and what you mean by main supply. I've only owned 73's. and have to work via schematics. I'll go look at my harness to see if I can better understand which part that melted red wire is coming out of. I checked all the adjacent wires and there are no breaks. -- Good job! (IMG:style_emoticons/default/smilie_pokal.gif) I am speculating that there might have been a opening in the wire and it shorted under the dash. For what it's worth, that wire didn't melt like that from some minor short like a small nick in the insulation. That was large short that drew lots of current, for a pretty significant length of time, and made lots of smoke. Would seem like the source would be sort of obvious but who knows what may have been done in the past and then ignored. Keep posting your progress and what other symptoms you find. |
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