trailer lights
Thread Starter
|
Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
trailer lights
I did a search but cant find the thread.....
Someone was having trouble with there trailer lights not working right.
My tailight/headlights work on both sides but my signal/brake lights only work on 1 side.
My question is ......is there more than 1 fuse for the trailer plug.
Like would only half go out or are both sides on one fuse?
Someone was having trouble with there trailer lights not working right.
My tailight/headlights work on both sides but my signal/brake lights only work on 1 side.
My question is ......is there more than 1 fuse for the trailer plug.
Like would only half go out or are both sides on one fuse?
Posting Guru
Joined: May 2006
Posts: 2,274
Likes: 1
From: Milroy, PA
I cant remember off hand, I can check tomorrow, but you can turn each sides turn signal on, and then check the trailer plug and make sure two of them are flashing. Just to verify you dont have an element out on one/more of your bulbs.
Posting Guru
Joined: May 2006
Posts: 2,274
Likes: 1
From: Milroy, PA
IIRC there are seperate fuses left to right. And the trailer ones ARE seperate from the truck ones. (why I said check the plug with test light, like you did) Get your manual out, and find the blown fuse. If you dont have a manual, I can check tomorrow for you.
Post Fiend
Joined: Dec 2009
Posts: 15,505
Likes: 18
From: Livoina,La
Trending Topics
Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
I didnt havbe any luck with it so far.
Elder User
Joined: May 2007
Posts: 595
Likes: 0
From: South LA
it was me having a prob. turned out to be a bad plug on the truck side. took it apart and the pins were grossly corroded. my elec brakes and brake lites were not working, but truck was fine.
your tail and brake lites are on same wire. so if one side is down, it would be side specific.
ironically, when i first started troubleshooting, my 30amp maxi was blown, upper top left (iirc), and i replaced it thinking that was it, but it wasnt good luck
your tail and brake lites are on same wire. so if one side is down, it would be side specific.
ironically, when i first started troubleshooting, my 30amp maxi was blown, upper top left (iirc), and i replaced it thinking that was it, but it wasnt good luck
Post Fiend
Joined: Feb 2007
Posts: 7,191
Likes: 4
From: Blairsville,Ga
The brake and turn signals are on the same wire not the tail
I have had a problem several times with the plug on the back of the 7 pin conector where it plugs into the tow harness on the truck.Was a lot of corrosion on several pins.At first I never knew it existed
I have had a problem several times with the plug on the back of the 7 pin conector where it plugs into the tow harness on the truck.Was a lot of corrosion on several pins.At first I never knew it existed
Elder User
Joined: Dec 2009
Posts: 864
Likes: 0
From: Fort Campbell, KY
You should have two Stop/Turn fuses for the TRAILER only. IIRC all of these trucks came with a "tow package" which included separately fused lights for the trailer.
Hotshot
Joined: Jan 2002
Posts: 17,988
Likes: 207
From: La La Land
At least it's that way for your '99 and my 2000. Ken's 2002 is a little different, as he has no under-hood fuse/relay box.
When a Tow Package is complete, all electrical signals that exit the seven-pin trailer connector are "buffered" by and supplied through relays that are controlled by the relative signals used on the truck. Thus, a mis-wired trailer can short fuses and even burn up relays (though it shouldn't), but the truck's basic electrical system should not be affected.
Pop
Thread
Thread Starter
Forum
Replies
Last Post
metriccar
1987 - 1996 F150 & Larger F-Series Trucks
7
Mar 25, 2012 04:37 PM
steve72932
Electrical Systems/Wiring
6
Aug 31, 2011 07:56 PM
