Wiring Diagram needed

[Tyrod]

I need a wiring diagram for the rear brake lights and all electrical components in the rear of the truck. As i was coming home today my dad was driving behind me and informed me that i have no brake lights, a couple of weeks ago it was just one brake light that sometimes didnt work but now neither work and they have no power going to them, but my running lights work. I also can only use my front fuel tank it doesnt swich to the one in the rear

 

[OLDBULL8]

Can't do a damn thing for you. Well maybe if you know what truck you have. 250-350 450 year 1928 - 1994 something in between. Put it in your sig when you find out.

 

[Tyrod]

F250 1990. Well fuel tank problem fixed but brake lights do not work neither does cruise control both quit around same day

 

[SkipBurney]

I have the same problem with my brake lights the P/O had all of the electrical knowledge of a large beaver. When he removed the brake controller he just clipped off wires.

 

[Tyrod]

see mine were working but quit for no apparent reason, and at the same time that my cruise controll quit. And without a scematic to figure out how everything ties together its imposiple and i checked fuses all of them checked ok. so im lost

 

[Fordsandguns]

If the cruise quit at the same time as the lights it could have something to do with the BOO switch on the brake pedal or the connector or wiring right after the switch.

 

['94IDITurbo7.3]

another thing to check is you turn signal switch in the steering collumn. those have been known to cause lights to do weird things.

 

[mabc926]

http://www.autozone.com/autozone/re...epairGuideContent.jsp?pageId=0996b43f8038ecd6


I'd say get a test light and just start tracking down the problem.

EDIT: Could be your brake on/off switch.

 

[Portuga]

Here, do this:

click the link. type in a letter then any 12 numbers.

example: A123456789101

https://elibrary.mel.org/validate?ur...ch?db=CHLL

Pretty much everything you might need. thats where i got the diagrams for my '94.