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2024 Brake controller Problems

Curt Lowe
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Jettech1 Senior Enthusiast

Jettech1

Posted
Posted
On 9/29/2023 at 10:33 AM, Rototerrier said:

Your vehicle is charging the batteries while you are towing.

Yes it is, most people don't know that.  When we dry camp overnight at say a Walmart parking lot on our way to another campground, the battery is at a 100% when we stop and typically around 65% when we leave the next morning 10 hours later.  The battery on the camper is keeping our fridge and freezer cold.  It's giving us light, powering up our phones, powering the water pump when we take showers, that one battery is doing it's job big time.  After driving another 3 hours when we stop to stretch, I look at the power meter and we are back to 100% just from the truck and our 165 watt solar panel.  I love it!!!

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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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Kevin Peele New Member

Kevin Peele

Posted
Posted (edited)

Just had to cancel a vacation from Iowa to Maine because of this. The truck threw these errors and I suspected the solar causing it. disconnect it (2 hr into trip) in Illinois and all was fine for the another coupe of hrs. then in Indiana started again intermittently. decided better to cancel trip. after awhile it only disengaged when starting the truck.   

Edited by Kevin Peele
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Kevin Peele New Member

Kevin Peele

Posted
Posted
On 8/27/2023 at 11:00 PM, UWSkier said:

My truck goes in on Tuesday for service.  Hoping they have the bulletin published by then so I can point the service director to that.  Also need them to figure out why any trailer I plug in says the running lights don't work, and the running lights are always on.  Will update what I hear.

Ah you have the running light problem too? I took it in to Chevy and it's supposed to be a "trailer light module" they need to order a part which they cannot get because of the strike. But I am also having the trailer brake issue as well.

2Ranchers Enthusiast

2Ranchers

Posted
Posted
17 hours ago, Jettech1 said:

Yes it is, most people don't know that.  When we dry camp overnight at say a Walmart parking lot on our way to another campground, the battery is at a 100% when we stop and typically around 65% when we leave the next morning 10 hours later.  The battery on the camper is keeping our fridge and freezer cold.  It's giving us light, powering up our phones, powering the water pump when we take showers, that one battery is doing it's job big time.  After driving another 3 hours when we stop to stretch, I look at the power meter and we are back to 100% just from the truck and our 165 watt solar panel.  I love it!!!

This is true but, it does not charge with a high enough voltage (14.6-.8) volts to fully equalize a LiFePo4 battery(s) which is important for long battery life. You need a LiFePo4 enabled solar charge controller or a proper DC converter to get to the required voltage. 

Jettech1 Senior Enthusiast

Jettech1

Posted
Posted
1 hour ago, 2Ranchers said:

This is true but, it does not charge with a high enough voltage (14.6-.8) volts to fully equalize a LiFePo4 battery(s) which is important for long battery life. You need a LiFePo4 enabled solar charge controller or a proper DC converter to get to the required voltage. 

I just have a run of the mill lead acid battery.  When it dies I'll be switching to Lipo.  Our camper is already equipped with a selectable charge controller for the different battery types.

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UWSkier Enthusiast

UWSkier

Posted
Posted
3 hours ago, Kevin Peele said:

Ah you have the running light problem too? I took it in to Chevy and it's supposed to be a "trailer light module" they need to order a part which they cannot get because of the strike. But I am also having the trailer brake issue as well.

Yes.  Waiting on the two modules.  One is in.  Other is supposed to arrive tomorrow, but I doubt that...

Kevin Peele New Member

Kevin Peele

Posted
Posted
2 hours ago, UWSkier said:

Yes.  Waiting on the two modules.  One is in.  Other is supposed to arrive tomorrow, but I doubt that...

Wait what? waiting on parts since end of Aug? good grief.

UWSkier Enthusiast

UWSkier

Posted
Posted (edited)
17 hours ago, Kevin Peele said:

Wait what? waiting on parts since end of Aug? good grief.

I have a 2024.  It was diagnosed as needing a new trailer light control module in addition to the updated brake control module at the dealership two weeks ago, which is when they ordered the modules.  Computer still saying the light module will arrive today.  It's scheduled to go in for service tomorrow.

Edited by UWSkier
Jon Sairs New Member

Jon Sairs

Posted
Posted

 I am so glad I found this thread. I am on a sunny road trip with my 2024 3500  Duramax which is  is disconnecting it's trailer controller and chimming constantly as I tow my TT with 300 watts solar  & 1.000 miles to go!!!

I will try disconnecting solar and or  removing #84 fuse and try to keep my sanity! I will give an update to see if this cures the issue.

Interestingly the last trip was cloudy and I did not have this issue.

UWSkier Enthusiast

UWSkier

Posted
Posted
22 hours ago, Jon Sairs said:

 I am so glad I found this thread. I am on a sunny road trip with my 2024 3500  Duramax which is  is disconnecting it's trailer controller and chimming constantly as I tow my TT with 300 watts solar  & 1.000 miles to go!!!

I will try disconnecting solar and or  removing #84 fuse and try to keep my sanity! I will give an update to see if this cures the issue.

Interestingly the last trip was cloudy and I did not have this issue.

Turning off the solar will help but you still might see it briefly from time to time.  At least that was my experience before I bought a cheap diode and wired it in.

2Ranchers Enthusiast

2Ranchers

Posted
Posted

Brought the truck in for its first oil change (complementary) and told the dealer about the brake controller issue when towing our travel trailer. They've ordered a new updated brake controller. No commitment to when it will arrive sue to the strike.

 

2Ranchers Enthusiast

2Ranchers

Posted
Posted

New brake controller arrived today. Bringing the truck in next week for install and re-programming. 

Shocked that it took only 5 days to get here.

 

  • Like 1
UWSkier Enthusiast

UWSkier

Posted
Posted
On 10/2/2023 at 10:21 AM, Kevin Peele said:

Ah you have the running light problem too? I took it in to Chevy and it's supposed to be a "trailer light module" they need to order a part which they cannot get because of the strike. But I am also having the trailer brake issue as well.

both modules swapped out and both problems fixed!

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