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mystery wire

wahya

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OK so I finally got my guage problem figured out. I can't seem to figure out what this wire is. Everything else seems to be working on dash and all lights work. A wiring diagram that I was looking at showed a black wire going to fuse box terminal, but this wire dosen't like voltage applied to it. This is on 71 SSP. Thanks, Ron.
 

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Dammed if I know.

1 You sure it's factory?

2 Is that a male spade? Looks like it fell out of a connector, the fuse panel, or the bulkhead connector

3 Is there voltage ON it?

4 What SIZE is the wire?

5 How far can you follow it? IE, what related part of the harness (I assume) does it disappear into?

6 And, (LOL) what doesn't work?
 
I assume its factory. It blends into the cluster of wires that goes towards the dash. Its a female connector. I'm guessing 18-20 guage and it seems to go into the middle of the cluster, so its real hard to follow. The diagram that I was looking at in another thread had a black wire going to a connection on the fuse panel. When I touch it to a flat male connector (battery)on back of panel, it was like putting a ground to it. Everything seems to work on dash. All lights work.
 
No, its not is there another page on this.
 
SSP? rallye cluster? With a clock or without? Can you get a better picture of what other wires it may wrapped with?
 
Wire X10-18BK*?, cluster ground lead, should be connected to the male spade incorporated in the mounting ear of the voltage limiter. Other end of that wire runs to the ground location on the dash frame, lower left hand side. Should have a trace on that wire. As indicated on page 8-176 of the 71’ FSM.
 
About as good of shot I could get to.
 

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sounds like 72 rr gtx has it pegged. the other page is at mymopar
 
OK I was getting pic as you posted. The limiter has a black /white trace on that spade and its wider than this connector, this wire appears to be solid black.
 
That was my next suggestion, check the limiter, that lead wouldn’t have been routed near the fuse box anyway. Not finding anything else in the factory diagrams. I would check it with a VOM, verify it’s a ground of some kind or if there is voltage present. If you connected to the male spades on the fuse panel and it is fully grounded, at 18ga, it should have smoked. The spades are un-fused and supplied by 12ga wires.
 
I just touched it and it popped, so I figured it was a ground.
 
I don't know but here on my little phone I see a white or yellow trace on that black wire look right at corner of fuse box
 
Yeah I know, thats probably glare from the flouresent light.
 
Some of the stuff that's small gauge and black

speaker wiring

rear defroster switching control
vacuum switch feed --part of AC controls
cruise control wiring
feed from fuse box to headlight delay relay

A no 18 bk goes to W in the bulkhead connector -- could it have come out?

horn relay

feed from fuse panel to emergency flasher connector
 
I appreciate everybodies help. I may have to put this on hold for a little while. I'm supposed to be leaving for the mountains tomorrow and I think I will be putting up my hurricane shutters before I leave.
 
The spade is bare, I suppose it could have come from the connector. (sorry I type slow)
 
Check to see if your key in switch, door open buzzer works? After looking at some of my spare harness, only other all black(no trace) small wire that would have been wrapped in the main harness to the fuse box is M16-20BK. Grounded only with the key in the ign. switch and left door open. Belongs in a cavity where the combination buzzer/horn relay is mounted at the top of the fuse panel. Pull the relay out and see if all four connectors are in place, cavity kind of off on one end by itself should be where it belongs. Pretty common way the disable the buzzer was to pull that lead out.
 
solved

Check to see if your key in switch, door open buzzer works? After looking at some of my spare harness, only other all black(no trace) small wire that would have been wrapped in the main harness to the fuse box is M16-20BK. Grounded only with the key in the ign. switch and left door open. Belongs in a cavity where the combination buzzer/horn relay is mounted at the top of the fuse panel. Pull the relay out and see if all four connectors are in place, cavity kind of off on one end by itself should be where it belongs. Pretty common way the disable the buzzer was to pull that lead out.
Wow YOU nailed it. I can't remember ever having that feature on my car. All my wiring, guages, lights ect. came from my parts car and there are lots of things I never had, like map light,key light. Thanks again. Ron
 
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