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Seatbelt wire

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Old Jun 6, 2005 | 05:55 PM
  #1  
AK4Wheeler's Avatar
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From: Eagle River, Alaska
Seatbelt wire

I have a set of retractable shoulder type seatbelts in my 78 F250. There is a black wire that comes out of the floor from the seatbelt (driver side). My question is, where does this wire goto?? What does it do?? I swapped out my main wiring harness and I dont know where this black wire needs to go. I dont have my old harness anymore to trace it.

Help...


Thanks.
 
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Old Jun 6, 2005 | 06:01 PM
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Greg 79 f150's Avatar
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There should be a wire under the carpet /rubber matting on the drivers side floor, that comes from under the dash, with a single connector block on it. It connects to the wire connector from your seat belt and it activates the seat belt alarm on your dash, when the belts are not buckled within the first one minute after starting the engine.
 
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Old Jun 6, 2005 | 06:24 PM
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AK4Wheeler
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Thanks Greg.

I have a 2 wire connector that goes from the harness to my driver seatbelt but nowhere for this single wire to goto. The seatbelt idiot light and latch assembly works like it should shutting off the light and buzzer when the seatbelts are connected.

I should point out that the black wire is from the upper retractable part of the seatblet(shoulder belt)... not from the clip(female end) that bolts to the floor.

Hopefully im makin sense.
 
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Old Jun 6, 2005 | 07:07 PM
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Greg 79 f150
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Sorry, I cant be of anymore help to you. If it was mine and the seatbelt alarm worked o.k., I would just let it be. My 79 F150 just has the one connector from the seat belts that plug in to the under the mat , connector. Maybe yours has a auxillary ground, I dunno. Maybe someone else may come along and know the answer, good luck
 
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Old Jun 6, 2005 | 07:15 PM
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just leave it , it's not important most people get rid of the stupid buzzer any way
 
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Old Jun 6, 2005 | 08:56 PM
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yeah, nobody ever misses that seat belt buzz
 
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Old Jun 6, 2005 | 08:58 PM
  #7  
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I feel like an idiot...

After pulling out the upper seatbelt assembly, I found out the mystery black wire didnt even go to the seatbelt. It went right in between the seatbelt into the roof and led me to the outside cargo light...The cargo light didnt work either and apparently the PO just cut the wire going to the cargo light and then spliced in his own power to it with a toggle switch in the dash. BTW.. I even had to replace the dash because there was soo many holes from switches that went to nothing.

The truck has had many wiring problems and the PO even started cutting wires trying to get the shorts to quit draining the battery. Since I purchased the truck I have replaced the entire main harness from a donor and have had just 3-4 problems Ive had to manually splice, solder and wrap to fix the problems. I think this is the last electrical problem that I know of.


Anyway, Sorry for the run around, but I found the problem and fixed it for good...

Thanks for your help.
 

Last edited by AK4Wheeler; Jun 6, 2005 at 09:00 PM.
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Old Jun 6, 2005 | 09:14 PM
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man the those po's can really screw a truck up because most have no idea what they are doing.glad the hear you are fixing it mine had all sorts of mystery crap in it .it had switches just for fun because there were no wires on the backs so i guess it was to look cool
 
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Old Jun 6, 2005 | 10:45 PM
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That sounds like a ground wire or possible power wire for the combination dome/cargo light.

Besides a possible rear window defroster, That's the only set of wires that runs up the back pillar.
 
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