Adding A Mopar Trailer Brake Controller To A 2025 RAM 1500

[RamTruckMan]

There’s been a lot of problems with installing a Mopar TBC in 2025 RAM 1500s. Dealers (a lot of them) don’t know because their parts guys don’t have the right information. The 2025 has a new CAN bus architecture which makes previous years’ TBCs incompatible.

In the 2025, the TBC Module is behind the rear seats. Depending on how your truck was built you’ll have one of 2 options to install a Mopar TBC.

OPTION 1: If you have a cable harness coming out of the existing TBC module with a tag saying PN: 68601443AA (the part number tag for the harness can be seen from under the rear seats), you only need part numbers:
68569520AB: TBC Module
68618899AA: Switch
And for the dealer to program your VIN. You can also verify the correct cabling if you look behind the space where the switch will go (take off the faceplate for your infotainment) and verify that there are 2 connectors back there.

OPTION 2: If you don’t have the cable with PN: 68601443AA installed, you’ll need the full kit along with getting it added to your VIN.

The full kit is PN: 82219240aa, which is on back order (as of 12/20/24), includes the above 3 parts - cable, switch & module.

EXTRA Information:
The 2025 RAM 1500 has 3 different TBC modules available.
The standard one is just trailer lights.
The one above is lights and brakes.
The third is for trailer lights, brakes and TPMS.

My hope, is that this will provide comprehensive answers for anyone looking to add a Mopar TBC.

My Big Horn’s TBC was successfully added using the first option.

Thanks to @Cbty2050 for helping solidify this information.

 

[CanuckRam1313]

Your input is appreciated.

My best bud out in Calgary just bought a 2024 GT and needs to get a TBC installed next spring so he can haul his TT.

 

[RamTruckMan]

Your input is appreciated.

My best bud out in Calgary just bought a 2025 GT and needs to get a TBC installed next spring so he can haul his TT.

It took a lot of research and conversation to figure all that out. Just trying to save someone else a little heartache.

 

[CanuckRam1313]

and this is why our Community is so amazing here!

Really nice to have a new member contributing so that all can benefit.

Good on ya, Brother!

 

[RamTruckMan]

and this is why our Community is so amazing here!

Really nice to have a new member contributing so that all can benefit.

Good on ya, Brother!

Thanks! I used to be active, had a 2019 DT lease, went to a Ford, came back

 

[RamTruckMan]

Deleted

 

[RamTruckMan]

There’s been a lot of problems with installing a Mopar TBC in 2025 RAM 1500s. Dealers (a lot of them) don’t know because their parts guys don’t have the right information. The 2025 has a new CAN bus architecture which makes previous years’ TBCs incompatible.

In the 2025, the TBC Module is behind the rear seats. Depending on how your truck was built you’ll have one of 2 options to install a Mopar TBC.

OPTION 1: If you have a cable harness coming out of the existing TBC module with a tag saying PN: 68601443AA (the part number tag for the harness can be seen from under the rear seats), you only need part numbers:
68569520AB: TBC Module
68618899AA: Switch
And for the dealer to program your VIN. You can also verify the correct cabling if you look behind the space where the switch will go (take off the faceplate for your infotainment) and verify that there are 2 connectors back there.

OPTION 2: If you don’t have the cable with PN: 68601443AA installed, you’ll need the full kit along with getting it added to your VIN.

The full kit is PN: 82219240aa, which is on back order (as of 12/20/24), includes the above 3 parts - cable, switch & module.

EXTRA Information:
The 2025 RAM 1500 has 3 different TBC modules available.
The standard one is just trailer lights.
The one above is lights and brakes.
The third is for trailer lights, brakes and TPMS.

My hope, is that this will provide comprehensive answers for anyone looking to add a Mopar TBC.

My Big Horn’s TBC was successfully added using the first option.

Thanks to @Cbty2050 for helping solidify this information.

I cannot edit my OP, for some reason. I want to add:
(EDIT: These data and part numbers are for 12” screens, There is currently no part for 14.4”)

 

[RamTruckMan]

I suspect, in order to edit older posts, I need a higher tier

 

[Dr_Strangelove]

Thank you for sharing your knowledge! Just confirmed I have the correct wire coming from under my back seat and ordered the two parts; I’ll update once installed & flashed.

Can anyone confirm - the two plugs I’m looking for behind my radio are different than the two plugs in previous generations?

I did in fact find two plugs, but they don’t match the pre-2025 plugs.

If no one answers me before parts arrive, I’ll update with pics of the two plugs, assuming they do work.

 

[burroujo59]

There’s been a lot of problems with installing a Mopar TBC in 2025 RAM 1500s. Dealers (a lot of them) don’t know because their parts guys don’t have the right information. The 2025 has a new CAN bus architecture which makes previous years’ TBCs incompatible.

In the 2025, the TBC Module is behind the rear seats. Depending on how your truck was built you’ll have one of 2 options to install a Mopar TBC.

OPTION 1: If you have a cable harness coming out of the existing TBC module with a tag saying PN: 68601443AA (the part number tag for the harness can be seen from under the rear seats), you only need part numbers:
68569520AB: TBC Module
68618899AA: Switch
And for the dealer to program your VIN. You can also verify the correct cabling if you look behind the space where the switch will go (take off the faceplate for your infotainment) and verify that there are 2 connectors back there.

OPTION 2: If you don’t have the cable with PN: 68601443AA installed, you’ll need the full kit along with getting it added to your VIN.

The full kit is PN: 82219240aa, which is on back order (as of 12/20/24), includes the above 3 parts - cable, switch & module.

EXTRA Information:
The 2025 RAM 1500 has 3 different TBC modules available.
The standard one is just trailer lights.
The one above is lights and brakes.
The third is for trailer lights, brakes and TPMS.

My hope, is that this will provide comprehensive answers for anyone looking to add a Mopar TBC.

My Big Horn’s TBC was successfully added using the first option.

Thanks to @Cbty2050 for helping solidify this information.

I have 2025 Ram 1500 I purchased last week, much to my chagrin I didn't get factory installed TBC ( a $295 option) so I paid Ram dealer $1000 to install. At present there are no trailer pages, I would think there should be, at a minimum trailer light test and brake monitor.

are these pages included with the factory option?

 

[Tulecreeper]

I have 2025 Ram 1500 I purchased last week, much to my chagrin I didn't get factory installed TBC ( a $295 option) so I paid Ram dealer $1000 to install. At present there are no trailer pages, I would think there should be, at a minimum trailer light test and brake monitor.

are these pages included with the factory option?

Should be in your owner's manual, even if your truck didn't come with that option.