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Trailer ?

B

Big Muddy rancher

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Feb 10, 2005
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Big Muddy valley
The light on my brake controller will not light up. It is supposed to when the trailer plug is connected. I seem to have power on two prongs on the truck side of the plug. Is the brake feed different then the brake light feed?

Denny :?

Anybody :? :?
 
The light will not light up unless you have a complete connection to the brakes. I'd start with the plugs on the truck and trailer. First use a test light on the truck if the light on the brake control lights up your good back to there. If thats the case I'd take apart the plug for the trailer and see if the wire came loose. If that checks out start looking for a broken or corroded wire. Make sure the trailer is grounded good to the truck most trailers ground thru the ball and with the fold down and turn over balls rust will hinder your ground.To check for a good ground hook up a jumper wire from the trailer to the truck.
 
Thanks Denny, I have all my lights working and I can use a jumper wire to apply the brakes. It must be up the wire loom where it's not making connection(oh fun), I started peeling back up the line looking for the break.

Thanks again.
 
I wasn't worried about lights but brakes are a luxury i kinda enjoy. :shock:

Don't get me started Gcreek. My son borrowed the truck to tour some girls around and it came home plastered in mud and the trailer brakes wouldn't work when i hooked it back up. Not say but mighty suspicious. :?

Denny would their be a circuit breaker that could be bad on the brake line? I can't seem to find any problem with the wire.
 
I would check the brake feed wire where it goes into the plastic connector where the wire's branch out to the tail lights and plug. It's just under the bumper on the rear left corner.Those brake wires will corode going into the plug I just cut them and bypass the plug. It's best to soder the connections and put some heat shrink over the connections.If you don't they'll quit working some cold day in January.
 
Big Muddy rancher said:
Don't get me started Gcreek. My son borrowed the truck to tour some girls around and it came home plastered in mud and the trailer brakes wouldn't work when i hooked it back up. Not say but mighty suspicious. :?
Click to expand...

And you never did nothin' like that when you were young and in a hurry, hmmmm? :nod: :heart: :lol:
 
gcreekrch said:
Big Muddy rancher said:
Don't get me started Gcreek. My son borrowed the truck to tour some girls around and it came home plastered in mud and the trailer brakes wouldn't work when i hooked it back up. Not say but mighty suspicious. :?
Click to expand...

And you never did nothin' like that when you were young and in a hurry, hmmmm? :nod: :heart: :lol:
Click to expand...


Never :D
 
Denny said:
I would check the brake feed wire where it goes into the plastic connector where the wire's branch out to the tail lights and plug. It's just under the bumper on the rear left corner.Those brake wires will corode going into the plug I just cut them and bypass the plug. It's best to soder the connections and put some heat shrink over the connections.If you don't they'll quit working some cold day in January.
Click to expand...


The wire seems fine It must be wired for trailers as it's not just splitter plug.
Still nothing but i have one place to check for more connections. Then I'm beat. :???:
 
gcreekrch said:
Big Muddy rancher said:
Don't get me started Gcreek. My son borrowed the truck to tour some girls around and it came home plastered in mud and the trailer brakes wouldn't work when i hooked it back up. Not say but mighty suspicious. :?
Click to expand...

And you never did nothin' like that when you were young and in a hurry, hmmmm? :nod: :heart: :lol:
Click to expand...

Hard to get muddy when its' parked... :twisted:
 
If you have current coming out of the brake controler it may be quicker just to run a new wire to the rear of the truck. I had to do that on a friend's dodge this spring it was 10 minutes with alot less headache.
 
Denny said:
If you have current coming out of the brake controler it may be quicker just to run a new wire to the rear of the truck. I had to do that on a friend's dodge this spring it was 10 minutes with alot less headache.
Click to expand...

Do you remember which wire you connected to coming out of the controller?
This is a 97 Dodge W 250.
 
Blue wire is your trailer brake wire.

Black wire is the hot wire from the battery
red wire goes to the cold side of your stop light switch on the brake pedal

white wire is the gound.

If the truck has a factory tow package sometimes the colors don't match those coming out of the brake control.
 
I know from experience that if you get it wrong you can make white smoke come out of the brake controller. :cry:
 

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