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2024 Brake controller Problems

Curt Lowe
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mjonesjr84 Enthusiast

mjonesjr84

Posted
Posted
13 minutes ago, Chuck FB said:

The further they forge ahead and invent complexity the further we fall behind !. 

 

So you had gone through the positive side of the braking system replacing wires and that for some reason made the trucks system happy, I was wondering what the condition of the negative side of the wiring system is in. Its been so long since I have looked at how they tend to wire up trailers to ground the axle hub I just don't know how elaborate or pathetic they create the negative path. Obviously your negative side is doing well enough to allow the brakes to function but why I asked how healthy it appears to be and if they run the negative from the hubs just to the frame and rely on grounding contact there and near the hitch the negative grounds there for the trailer plug ?. 

My wiring had a blue and white from the main harness. I started there with both blue and white 10AWG to each brake.

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Kyleb100
Kyleb100

I have the same issue with my 2024 sierra 3500. I get the “check trailer wiring” “service trailer brake system” intermittently. I spent $700 bucks to have the entire trailer re-wired from the pigtail

Rototerrier
Rototerrier

Good news. Disconnected Solar and for the first time ever i didn’t receive a check trailer wiring error when hooking up. Did a 20 mile loop without any issues. Will have to see what happens on my next

UWSkier
UWSkier

I've ordered a diode I'm going to put into the 12v line so the trailer can't push any voltage back to the truck.  Hope to do that, reconnect solar, then go for a drive to see if it fixed my problem.

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Chuck FB Enthusiast

Chuck FB

Posted
Posted
7 minutes ago, mjonesjr84 said:

My wiring had a blue and white from the main harness. I started there with both blue and white 10AWG to each brake.

Oh, so both power ( the blue ) and ground were completely changed out in this process which is ideal to get rid of any possible breaks in either the power or ground side. I wonder if there was any chance that in that whole mess of power/ground wiring that the power wire rubbed through into the ground wire and it created a dead short, not sure if that would blow a fuse or just make the truck throw a fit. Or simply a break in either the power or ground, if the ground side then it would try finding a ground through your trailer hitch !. Trailers and crappy chintzy wiring just seem to be a theme, often not protected properly from flying rocks or hanging mud or ice and it all goes to crap. 

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mjonesjr84 Enthusiast

mjonesjr84

Posted
Posted
14 minutes ago, Chuck FB said:

Oh, so both power ( the blue ) and ground were completely changed out in this process which is ideal to get rid of any possible breaks in either the power or ground side. I wonder if there was any chance that in that whole mess of power/ground wiring that the power wire rubbed through into the ground wire and it created a dead short, not sure if that would blow a fuse or just make the truck throw a fit. Or simply a break in either the power or ground, if the ground side then it would try finding a ground through your trailer hitch !. Trailers and crappy chintzy wiring just seem to be a theme, often not protected properly from flying rocks or hanging mud or ice and it all goes to crap. 

Yes I changed both. 

 

The factory wires ran across inside each axle tube.

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Chuck FB Enthusiast

Chuck FB

Posted
Posted
15 minutes ago, mjonesjr84 said:

Yes I changed both. 

 

The factory wires ran across inside each axle tube.

I'm sure nothing can go wrong there with the two wires entering/exiting a hole drilled into the axle tube, like no chance of it rubbing wires on the edge of the holes or being a stress point or that axle tubes will no doubt have a seam internally and if oriented at the bottom would have the wires bouncing onto that sharp seam ( unless they use seamless axle tubing ). 

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mjonesjr84 Enthusiast

mjonesjr84

Posted
Posted
1 minute ago, Chuck FB said:

I'm sure nothing can go wrong there with the two wires entering/exiting a hole drilled into the axle tube, like no chance of it rubbing wires on the edge of the holes or being a stress point or that axle tubes will no doubt have a seam internally and if oriented at the bottom would have the wires bouncing onto that sharp seam ( unless they use seamless axle tubing ). 

Kinda my thoughts as well. I ran the wires, which are encapsulated in a vinyl jacket, on top rear of the front axle tube secured with zip ties. 

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