towing lights not responding
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Elder User
Joined: Oct 2006
Posts: 835
Likes: 1
towing lights not responding
i went to pick up a tow dollie the other day and the guy told me i had no brake lights. so i tryed my turn signals. they dont work either. but the wierd thing is ive got running lights! so i thought it was a bad connection on the harness. wrong ive traced the wires to under the hood and still no good. im now at the point where i think its a fuse but ive checked most of what i thought it would be. any ideas fellas?
Junior User
Joined: Jun 2006
Posts: 53
Likes: 0
From: Houston area.
What kind of truck is it? The last time I had trailer light problems it was a fuse under the hood. The nice thing about the towing package wiring on that truck (1994 7.3 F350 Powerstrike) was that the trailer wiring was fused separately from the truck lights.
New User
Joined: Oct 2007
Posts: 2
Likes: 0
I am having the same problem. I do have running lights. No brake/turn signals.
Checked three different trailers, Checked all the fuses that should logically apply, checked for broken wiring. No power coming from truck using meter.
HELP!!!!
Checked three different trailers, Checked all the fuses that should logically apply, checked for broken wiring. No power coming from truck using meter.
HELP!!!!
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
Originally Posted by Oleman39
I am having the same problem. I do have running lights. No brake/turn signals.
Checked three different trailers, Checked all the fuses that should logically apply, checked for broken wiring. No power coming from truck using meter.
HELP!!!!
Checked three different trailers, Checked all the fuses that should logically apply, checked for broken wiring. No power coming from truck using meter.
HELP!!!!
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Fleet Mechanic
Joined: Mar 2004
Posts: 1,483
Likes: 1
From: SE PA
At least on my '05. there are relays under the hood that control the brake lights and turn sigs on the trailer. I'd see if they are working too.
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Thread Starter
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Elder User
Joined: Oct 2006
Posts: 835
Likes: 1
welcome oleman glad i could help bud! ...haha yeah well i bought a boat and thats the last thing i towed that had working lights. keep in mind the boat is a 78 with iffy trailer wiring so im thinkin thats what burned it up. Where are these relays located. like i said ive checked the obvious stuff. grounds are good everywhere. ive got running lights on the trailer just no brakes or turn signals but the stuff on the truck works all correctly. im goin to look for relays now. oleman, start your own topic to report back bud thanks!
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Elder User
Joined: Oct 2006
Posts: 835
Likes: 1
yup. turned out its the #6 fuse in the dash. 20 amper thought i had checked that one but unfortunatly i checked the #4 right above it..stupid ford why cant they use a neon orange fuse for hte trailer brake and turn signals!? lol
Postmaster
Joined: Jan 2005
Posts: 4,743
Likes: 3
From: Peoria, IL
It's always a good idea to check all fuses with a tester when you are having electrical problems. Ford doesn't do the greatest job of labelling all of the items that are run off of each fuse in the manual, and sometimes a blown fuse can still look good. My power windows, and radio quit working in my truck. I checked all the fuses that were labeled for them and didn't find any blown. My cousin went through the electrical schematic and found a different fuse that they also recieved power from. In the Ford manual it was labeled as being for the instrument panel (my instrument panel was working fine).
