Adding Factory Integrate Trailer Brake Controller
October 5th, 2020, 9:16 PM
#1
Adding Factory Integrate Trailer Brake Controller
Hi - has anyone successfully added an OEM integrated trailer brake controller to a current generation (2015 or later) Suburban? I have a 2018 Suburban Premier with the "regular" towing package not the max trailer package. So the integrated brake controller was not included. The dealer told me the factory controller could not be added because I did not have the JL1 option. The JL1 option is the integrated trailer brake controller. So of course I don't have it. That's why I want to add it. I've red it is possible to install the controller and then re-boot the computer so the truck recognizes the controller. Anyone have any luck with this? Thanks
October 6th, 2020, 8:37 AM
#2
can't be done...you must install an aftermarket controller.
the factory oem controller is configured on a bus network to interact with the abs and stability control systems. it can't be added to the network. gm has issued service bulletins to inform dealers this is the case. if you try to do it and mess up the bus...at min you has the mil light and worse case you bring down the bus and brick the truck.
the factory oem controller is configured on a bus network to interact with the abs and stability control systems. it can't be added to the network. gm has issued service bulletins to inform dealers this is the case. if you try to do it and mess up the bus...at min you has the mil light and worse case you bring down the bus and brick the truck.
October 6th, 2020, 9:15 AM
#3
can't be done...you must install an aftermarket controller.
the factory oem controller is configured on a bus network to interact with the abs and stability control systems. it can't be added to the network. gm has issued service bulletins to inform dealers this is the case. if you try to do it and mess up the bus...at min you has the mil light and worse case you bring down the bus and brick the truck.
the factory oem controller is configured on a bus network to interact with the abs and stability control systems. it can't be added to the network. gm has issued service bulletins to inform dealers this is the case. if you try to do it and mess up the bus...at min you has the mil light and worse case you bring down the bus and brick the truck.
June 26th, 2021, 7:09 PM
#6
trailer brake control
thats crazy why would gm do that......i like the factory look versus some box bolted to under my dash.....thank god i found the answer here i was about to make my own pigtail and wire the factory one...i would have screwed things up for sure!!!
June 26th, 2021, 7:29 PM
#7
always best to check with the dealer....later models may have the option. Its an easy way for gm to make money selling the controller and programming vs an aftermarket company getting paid.
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June 26th, 2021, 10:32 PM
#8
What’s crazier is the factory wiring for the controller is behind the panel. I pulled it off and found the factory connector for the integrated brake controller. I was told even though the connection is there, it won’t work because the module is not in the truck. I bought a Tekonsha P3. Works great. Still not happy the OEM cannot be added to $75k truck though.
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FXDWG2002 (February 17th, 2022)
June 27th, 2021, 9:56 PM
#9
We just purchased a loaded 2011 Yukon XL Denali. Had everything EXCEPT the integrated brake controller, for which there are like 5 pages devoted in the owner's manual. That's GM !!!!
We had a trailer place 2 miles away install one, took like 1 hour.
We had a trailer place 2 miles away install one, took like 1 hour.
June 28th, 2021, 2:21 PM
#10
What’s crazier is the factory wiring for the controller is behind the panel. I pulled it off and found the factory connector for the integrated brake controller. I was told even though the connection is there, it won’t work because the module is not in the truck. I bought a Tekonsha P3. Works great. Still not happy the OEM cannot be added to $75k truck though.
have you tried to add anyother option to your truck?i have about 90 percent of the parking assist parts collected,still not sure if the module wiring is behind the rear seat and i cant locate the harnees that goes from the module to the rear led light.