need help wiring issue
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Freshman User
Joined: Aug 2013
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From: ravenswood
need help wiring issue
Have a 79 f150 and when the brakes are in use the front driver side turn signal comes on as a brake light can anyone help me please its kicking my butt trying to find out why all other lights work right but that on
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
Have you reviewed the wiring diagram... lately?
http://www.fordification.net/tech/im...aster_5of9.jpg
Tell us what those two circuits have in common. Meaning, the front parking lights are receiving a voltage when they are not supposed to.
Drum roll please.....
http://www.fordification.net/tech/im...aster_5of9.jpg
Tell us what those two circuits have in common. Meaning, the front parking lights are receiving a voltage when they are not supposed to.
Drum roll please.....
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Freshman User
Joined: Aug 2013
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From: ravenswood
wiring issues
I have the factory wiring digrams from ford and its not helping me any I have so many wires that have been cut found two wires that are not in the digram that are cut in half I am lost this is what I am good at about to say the hell with it and rewire the whole truck justed because of that one light the light has to be crossed or shorting out or tied in to the brake switch
Cargo Master
Joined: Jul 2005
Posts: 2,309
Likes: 364
From: Kansas
Check the simple things first. Confirm the rear bulbs are good and correct for the application. Second check the condition of the sockets (no corrosion). Next check the resistance from the sockets to ground. Does the front light still come on if you try it with both rear bulbs removed? If so you prob have a wiring or turn signal switch problem
Fleet Owner
Joined: Dec 2009
Posts: 20,678
Likes: 82
From: NorCal
I have the factory wiring digrams from ford and its not helping me any I have so many wires that have been cut found two wires that are not in the digram that are cut in half I am lost this is what I am good at about to say the hell with it and rewire the whole truck justed because of that one light the light has to be crossed or shorting out or tied in to the brake switch
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Freshman User
Joined: Aug 2013
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From: ravenswood
wiring issues
If I know that the wires was cut I would have but I also checked the wiring the two that I found cut are cut at both ends and the only places that cut and put back together was spots I cut and moved away from the header and I did one wire at a time but all back lights work right and the front works right with out the brakes applyed and all still work but the drive side front trun signal comes as a brake light
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