I have a electrical problem with my 98 f150. It has a 7 pin tow light setup from the factory. All lights work on the truck. The recepical for the tow lights however does not have power to the right/left turn signal lugs. I have checked the ground it is good. All wires in the pigtail that ties the receptical to the truck wiring read continuity. All wires in the wire harness running from the power distribution box to the pigtail read continuity. I can find no blown fuses but the 2 wires that connect to the right/left turn signal lugs in receptical are dead, no power and the feed wires from the power distibution box have no power either. any help here would greatly be appriciated as far as i know all relays a good but i dont know were the power for the tow recptical turn lights is supposed to be powered from, I have a repair manual but the wire schematics does not cover a factory install 7 pin tow harness.

 

See posts 47 and 50 in this thread: https://www.f150online.com/forums/to...cations-2.html for the information that is not in your owner's manual.

 

You can download the 1997 Owners Manual to get the info, this page is missing from the 1998 OM for some reason.

https://www.fleet.ford.com/maintenan...ls/default.asp



This is projectSHO89 picture & documentation on where things are at ( the OW is kind of vague on where the relays are as well ).

 

I'm just now chasing down why I have nothing in my 7 pin connector (98 F150SC 4x4 w/trailer towing pkg). are all those things labeled in the above photo required for the 7 pin to work? I checked the 20A fuse and it is good. My setup looks like this photo except I don't have the "Unknown" gizmo (relay?)

any help appreciated


EDIT: well, after looking at again, mine doesn't look anything like that at all. It looks like this

 

Looks identical to me.

Turn your computer monitor on edge....

 

here's' the image rotated - it was much easier than rotating my monitor

The circled area doesn't look the same to me

There are six things plugged into the orig photo, eight into my mine

 

Hi try this mine is a 97 f150 5.4 4x4 behind my main under hood fuse box are 2 other very small fuse boxes driver side next to the firewall mine were wrapped in tape one had a 20 amp and 5 amp fuse w/ some open slots fuses are mini flat type the 20 is yellow the 5 is blue the 20 amp blew when i shorted it to my shell (DUH FAIL my bad) replaced the 20 turn and park work at the bumper now but i cant get the brake to work - 4 wire w/electric trailer brake havent figured the brake out yet AHH
Thanks
John