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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

wiring harness question

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Old Mar 19, 2012 | 07:47 PM
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From: Charm City
wiring harness question

Hi all, let me start by saying I've used the search on here as well as Google and the diagrams available from autozone. All I can say about the autozone info is that it's about the same quality as the parts they sell!

My truck has a build date of 8-89 but was sold and titled as a 1990, the under hood color codes on the harness also mesh with the info on the '90 model.

I used a lot of info that I found on Supermotors.com, they showed that the harnesses have variations, it seems like '87-'89 were basically the same, 1990 is all by itself as is 1991. 1992-1996 seem to be almost identical.

I'm trying to find what the color code on the wire is that plugs into the e-brake switch for my '90 F250. I know it seems trivial to some but I want to be 100% sure that everything is returned to original condition in regards to the wiring harness. The PO made a hack job under the dash, I've been busy trying to un-puck it to get the truck from constantly popping the brake light fuse.

If anyone can give me a solid answer about my question, it would be greatly appreciated!
 
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Old Mar 20, 2012 | 08:38 AM
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From: Easton,Ks
It should be a light blue wire with a black tracer.
 
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Old Mar 20, 2012 | 08:49 AM
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From: Charm City
Originally Posted by subford
It should be a light blue wire with a black tracer.


I have one of those that is un-accounted for, the plug was snipped off. This is why I'm bashing the autozone info, they show it as being purple/white which isn't possible under my dash!.
 
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Old Mar 20, 2012 | 09:06 AM
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From: Easton,Ks
The wire color was purple with a white stripe in 1988.
I do not know the color in 1989 or 1991 but I show light blue wire with a black tracer or stripe in the 1990 & 1992 diagrams. The 1993 - 1996 has a different color wire, light green with a red stripe.
 
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