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Help Identifying Wiring

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Old Dec 29, 2021 | 02:23 PM
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Help Identifying Wiring

91 F150 4x4 XLT Lariat, 5.0, 5 Speed

I tried searching and looking in the Haynes with no success. Also browsed through most of this without any real success. Trying to identify some wiring under my dash that I noticed isn't hooked up to anything. Wondering if the larger plug is for cruise control which I don't have?







Sorry for the potato pic, but I wanted to get the color of the wire.




Thanks in advance! Cheers
 
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Old Dec 29, 2021 | 02:38 PM
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Originally Posted by cp10h
91 F150 4x4 XLT Lariat, 5.0, 5 Speed

I tried searching and looking in the Haynes with no success. Also browsed through most of this without any real success. Trying to identify some wiring under my dash that I noticed isn't hooked up to anything. Wondering if the larger plug is for cruise control which I don't have?







Sorry for the potato pic, but I wanted to get the color of the wire.




Thanks in advance! Cheers
trailer brake controller hook ups

do you have towing package(trans cooler in front of the condensor/rad, and then extra relays by the computer on the fuseb ox
 
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Old Dec 29, 2021 | 02:46 PM
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Ah interesting. I know I don't have a trans cooler. I'll have to check the relays but I'm guessing I don't have em. Is this something that all the trucks would've come pre wired for? I don't know much about the history but I do know it sat with a bad trans for a few years before the previous owner put an extra m50d in he had laying around. I'd be surprised if he went to the trouble to remove the trans cooler if it previously had one.
 
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Old Dec 29, 2021 | 02:54 PM
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prob cruise, rke or ther optiobs, or trailer controilers
 
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