Diesel Forum - TheDieselStop.com - View Single Post - 12v aux wire origination
View Single Post
post #2 of (permalink) Old 09-13-2018, 02:12 PM
Steve83
Senior Member
 
Steve83's Avatar
 
Join Date: Jan 2006
Location: Memphis, TN 38133, USA, Earth, Milky Way
Posts: 1,719
My Photos: (0)
This link requires an e-mail, but it doesn't have to be your real one:
BBB Industries- Premium Alternators, Starters, Power Steering Products | TSB's & Wiring Diagrams
When you see the "WIRING DIAGRAMS" button, click it before selecting the system. If you can't find the diagram for your year, try a later similar truck.

It doesn't connect to the alternator - it probably originates near the L hood hinge, where the other relays are (originally under a black plastic cover). This is what the trailer relay harness looks like on '87-91 F150s & Broncos (& possibly F250/350s):


(phone app link)



(phone app link)


But the charge wire might come straight from the starter relay as a simple fusible link.
http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=57184


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Last edited by klhansen; 09-14-2018 at 01:08 AM. Reason: forum rule violation
Steve83 is offline  
 
 
For the best viewing experience please update your browser to Google Chrome