IBC issues
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
Stroker,
My overriding thought in all troubleshooting situations is to go with the simplest things first. I spent some years trying to reinvent electricity in my troubleshooting before finally accepting the fact it is very seldom the case the solution to the problem at hand is complex. The most common problem with braking systems is the seven-pin on the back of the truck and that probably outnumbers all other problems by an overwhelming majority. yes, other things can happen, but the first thing I want to know is do I have voltage to the brake pin.
Unless you look at the back of your plug and the wires are butchered, I doubt the pins are miswired and given the fact your trailer lights are all working correctly, how it that even possible? You have every other lead in the seven pin accounted for with the lighting.
Pop off the back of the seven pin under your truck and put a voltage meter on the lead to the brake pin. Have someone work the manual slide. Do you have voltage or not?
Steve
My overriding thought in all troubleshooting situations is to go with the simplest things first. I spent some years trying to reinvent electricity in my troubleshooting before finally accepting the fact it is very seldom the case the solution to the problem at hand is complex. The most common problem with braking systems is the seven-pin on the back of the truck and that probably outnumbers all other problems by an overwhelming majority. yes, other things can happen, but the first thing I want to know is do I have voltage to the brake pin.
Unless you look at the back of your plug and the wires are butchered, I doubt the pins are miswired and given the fact your trailer lights are all working correctly, how it that even possible? You have every other lead in the seven pin accounted for with the lighting.
Pop off the back of the seven pin under your truck and put a voltage meter on the lead to the brake pin. Have someone work the manual slide. Do you have voltage or not?
Steve
Cargo Master
Joined: Jun 2008
Posts: 2,752
Likes: 5
From: Stillwater, OK
all pins except two.... the Center pin, Reverse lights/aux2, and the Aux 1 pin.
I've known folks to switch the brake line with an aux line to engage the trailer brakes if somebody with a regularly wired pickup tried to drive off with it.
I've known folks to switch the brake line with an aux line to engage the trailer brakes if somebody with a regularly wired pickup tried to drive off with it.
Senior User
Joined: Oct 2012
Posts: 124
Likes: 0
From: Georgia
You may want to check your ground(again if you already have). On a few other vehicles this has usually been my problem. Having a bad ground (at a point of connection, a frayed wire, or a small hole in the wire's insulation) can cause a multitude of different problems. It has caused for me "trailer not connected" and the trailer brakes to lockup if I turned on my lights.
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Freshman User
Joined: Nov 2007
Posts: 39
Likes: 0
SUCCESS!!!! Broke the plug apart on the truck, wasn't looking too bad but cleaned it up anyways. Put everything back together. Try out the fancy new plug tester (with LEDs) and got a reading. Loved the tester due to the fact that the higher the gain the brighter the LED for the brake lights up. Well anyways back to the story, hooked the trailer up, started to pull out of the driveway, hit the manual slider and the brakes locked up. Took it out for a spin and everytime I hit the brakes I could feel an ever so sight of a tug from the trailer. Thanks guys for all the help.
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
SUCCESS!!!! Broke the plug apart on the truck, wasn't looking too bad but cleaned it up anyways. Put everything back together. Try out the fancy new plug tester (with LEDs) and got a reading. Loved the tester due to the fact that the higher the gain the brighter the LED for the brake lights up. Well anyways back to the story, hooked the trailer up, started to pull out of the driveway, hit the manual slider and the brakes locked up. Took it out for a spin and everytime I hit the brakes I could feel an ever so sight of a tug from the trailer. Thanks guys for all the help.
Safe travels,
Steve
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