trailer lights not getting enough voltage
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trailer lights not getting enough voltage
Evening all.
I have an 03 f150 (basic model, manual transmission, extended cab)
I noticed that my trailer lights dont work. Went down to the neighborhood mechanic, and we tested the fuses. They looked fine, but we noticed that they are only getting .13v, when they should be getting around 12?
He has no idea what would cause it, and said he would ask his other (a real ford) mechanic if they know. In the mean time, he told me to ask around on here.
Any ideas?
Thanks
I have an 03 f150 (basic model, manual transmission, extended cab)
I noticed that my trailer lights dont work. Went down to the neighborhood mechanic, and we tested the fuses. They looked fine, but we noticed that they are only getting .13v, when they should be getting around 12?
He has no idea what would cause it, and said he would ask his other (a real ford) mechanic if they know. In the mean time, he told me to ask around on here.
Any ideas?
Thanks
Thread Starter
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New User
Joined: Mar 2015
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We tested both. (plug for trailer lights, and fuses where you can attach meter o top of them)
There is two fuses (left and right side of trailer) one side is getting enough, the other is not.
The ground seems to be in tact just fine. and there seems to be no altercation to the wires themselves.
We tried to test the port where the fuse goes, but our meter was to thick to fit in..
There is two fuses (left and right side of trailer) one side is getting enough, the other is not.
The ground seems to be in tact just fine. and there seems to be no altercation to the wires themselves.
We tried to test the port where the fuse goes, but our meter was to thick to fit in..
Lead Driver
Joined: Dec 2012
Posts: 7,877
Likes: 49
From: Tennessee
So , you checked the fuse tops in the fuse panel . One side has battery voltage , the other side of the fuse top does not ... correct ?
That would be a blown fuse , If I understand what you describe .
Pull the fuse and check them .
That would be a blown fuse , If I understand what you describe .
Pull the fuse and check them .
Hotshot
Joined: Jul 2005
Posts: 11,931
Likes: 180
your on fuses 19 and 20 ? Both are 10 amp ? The input side of both should be 12 v. They get power from the same breaker. If there is no power into 1 fuse then the backside of the block might have a problem. If you have power into both fuses, and not out of one fuse, then the fuse or the holder is problem.
I would jumper power to the fuse from another source and see that all wiring and lights to the trailer work, then go from there.
I would jumper power to the fuse from another source and see that all wiring and lights to the trailer work, then go from there.
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Elder User
Joined: Mar 2005
Posts: 521
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From: Southern New England
Did your mechanic friend check his meter on a known circuit? If so as others have suggested start where you have power and work your way down the line to find the break.
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