No Brake Lights
Thread Starter
|
New User
Joined: Nov 2008
Posts: 11
Likes: 0
No Brake Lights
alright so the brake light on my trailer are not working but every other light on my trailer and my ranger works. i checked the ground and the bulb and they all seem to check out. any ideas on why its not working? my next guess is the fusebox, but i cant find the fuse for the trailer.
Posting Guru
Joined: Nov 2000
Posts: 1,005
Likes: 1
From: Cincinnati, Ohio
Do the turn signals on the trailer work? If so the problem is in your truck. The trailer only has dim light or bright light for each side. It uses the bright light for both brake lights and turn signals.
As to fuse location, it would help to know what truck you have.
As to fuse location, it would help to know what truck you have.
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
alright so the brake light on my trailer are not working but every other light on my trailer and my ranger works. i checked the ground and the bulb and they all seem to check out. any ideas on why its not working? my next guess is the fusebox, but i cant find the fuse for the trailer.
Thread Starter
|
New User
Joined: Nov 2008
Posts: 11
Likes: 0
sorry, its a 94 ranger. when i turn the lights on(head and tail) the two bulbs in both the box's light up. when i press the brake, nothing happens, doesn't get any brighter, i get no response to the turn signal ether.
On a Side Note
all the lights on the ranger are working like they should.
On a Side Note
all the lights on the ranger are working like they should.
Lead Driver
Joined: Sep 2007
Posts: 8,180
Likes: 669
From: Scio, OR
Does your truck have Amber rear turn signals, or signals that use different bulbs than the brakes? If so, there has to be a converter box and those tend to fail. Follow the wires from the trailer plug on the back of the truck and see where it goes.
Also, have you checked the plug with a test light?
Also, have you checked the plug with a test light?
FTE Legend
Joined: Jul 2005
Posts: 65,938
Likes: 1,432
From: Millersville, MD
As the bulbs are dual filament bulbs, are you SURE the bulbs are ok? The tail lights can work while the brake light filament can be blown!
Trending Topics
Thread Starter
|
New User
Joined: Nov 2008
Posts: 11
Likes: 0
just got a test light today from auto zone. only 1 out of the 4 work on the plug 
. now what do i do? replace the plug???
Thanks guys!
. now what do i do? replace the plug???Thanks guys!
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
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
Posting Guru
Joined: Nov 2000
Posts: 1,005
Likes: 1
From: Cincinnati, Ohio
Need to get under the truck in the back and see where the wires run. Check connections, check wires to see if any are broken. If everything looks OK then replace the plug, they are not very expensive but you need to know if that is the problem before you go throwing even low price parts at it.
Thread Starter
|
New User
Joined: Nov 2008
Posts: 11
Likes: 0
i finally got around to look at the truck, i bought a replacement plug thinking "hey this might work", nope.......it didnt. still the same problem, 1 out of the four work. but it narrowed it down. i checked the fuse box and it doesn't have any fuses in it about a trailer. so i followed the wires the best i could to the engine compartment. but i lost it as it was going up through the wheel well (it was grouped with the other wires in my truck). Any ideas?
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
According to the 94 Ranger EVTM:
The 94 Ranger did not have a factory trailer adapter so there are no factory fuses to check.
The 94 Ranger DID use a two bulb system (one amber turn and one running/brake lamp per side).
Most likely, there is a converter box plugged into the harness as dchamberlain suggested and it has failed. The converter box should be between the flat four-lead plug and the T-connector where it was inserted into the OEM vehicle wiring harness.
Steve
The 94 Ranger did not have a factory trailer adapter so there are no factory fuses to check.
The 94 Ranger DID use a two bulb system (one amber turn and one running/brake lamp per side).
Most likely, there is a converter box plugged into the harness as dchamberlain suggested and it has failed. The converter box should be between the flat four-lead plug and the T-connector where it was inserted into the OEM vehicle wiring harness.
Steve
Thread Starter
|
New User
Joined: Nov 2008
Posts: 11
Likes: 0
!
Hotshot
Joined: Jan 2004
Posts: 19,760
Likes: 1,079
From: St Louis
Steve
Thread
Thread Starter
Forum
Replies
Last Post
2kcrewcab
6.4L Power Stroke Diesel
13
Apr 7, 2011 06:04 AM
Thudpucker
Electrical Systems/Wiring
7
Sep 29, 2006 02:53 PM