Hello all, I have a '21 Bighorn 3500 and looking at adding this to it, but cannot find compatible/matching wireless control module reciever. I'm guessing due to being heavy duty mine could be a different part number.
Question so I have everything installed and everything enabled via Alfaobd but I am still getting the service required screen. I have gone through and verified connections and wiring. A couple times and all seems to be correct. I don’t remember this showing up the first few times I started the truck but I could have not been paying attention. These are the parts I bought. Mine is a 22I’ll figure it out this weekend and PM you. Before you do anything, this is a gamble if it’ll work on the 2019-2020s, you really need to use AlfaOBD to enable the settings in the BCM to see if the radio and EVIC supports the feature. With the settings enabled, but no hardware/wiring installed, you should get this message on start up-
You should get this screen in the trailer menu-
And you should get this setting in the trailer brake settings menu-
Question so I have everything installed and everything enabled via Alfaobd but I am still getting the service required screen. I have gone through and verified connections and wiring. A couple times and all seems to be correct. I don’t remember this showing up the first few times I started the truck but I could have not been paying attention. These are the parts I bought. Mine is a 22
Part numbers:
68493608AA - Gateway Module Trailer tire pressure monitoring sys. interface
68412666AA - Jumper Cable for TIM Module
68526635AB - Wireless Control Receiver
Jimmy007 made the harness to plug into the rear harness
68516743AA - TPMS Sensor Kit (4)
And set Alfa OBD to this:
1. VehConfig 8: Trailer TPM Present, Set this to enable
2. P/T Chasis Net: TTPM Trailer Tire Pressure monitoring, Set this to enable
Is there a way to tell which one is faulted? Both modules and cables are brand new and you can’t really screw up connecting them. I’d hate to buy two new modules to test with."service required screen" indicates one of the two modules is not connected correctly, you get the same error when they do not exist and you enable #1 and #2 in Alpha OBD.
Is there a way to tell which one is faulted? Both modules and cables are brand new and you can’t really screw up connecting them. I’d hate to buy two new modules to test with.
Thanks I will use Alfa and check. I haven’t had a scan tool since I stopped being a tech years ago. I took the connector apart yesterday to verify I pinned it correctly. it is pinned correctly and I put the pins in the position they where labeled For.With a good scanner you can check the status of the modules TIM 68493608AA and TTPM 68526635AB ( mine is also a 2022 )
All of the trailer config is stored in TTPM out under the bumper.
Without a scanner you could use Alpha OBD to check if ether of them has set a code.
Possibly double check the pin positions on the new cable by the bumper , TIM is less likely to be the problem as you just plug it in.
When i installed mine, i did the TIM and the Alpha OBD settings , and i had the service required screen until i got the harness from Jimmy07
Screen shot of TTPM Config attached
1) You have a 2500, so you don’t need a custom harness. (I think I mentioned this to you before, but you really need to be asking modification questions about your truck on hdrams.com forum. This is the 1500 forum, and most of the info on here doesn’t apply to your truck)I have a 2019 2500 limited and am looking at adding the trailer tpms.
After going through this thread a few times i have a few questions:
1) the harness that Jimmy07 makes. How much is it and where does it go. I see it goes into the plug but where does the other end go?
2) can you use oyher sensors? I already have tst507 sensors on 2 trailers. I would need to nuy 4 new sensirs for the 2 trailers.
3) there is discussions on 2 modules. I know one hors in the floor behind the back seat. Where dors the second one go?
I have the alpha and have seen the trailer tpms setting but i have not enabled ot yet.
68433188AA - TPMS Sensor Kit (4)
I see them all the time on Craigslist for $60.Amazon is selling this for $191.06
Not certain if these are legit or not, but amazon (not a third party) is the seller.
I ordered one, we'll see. There are now 2 left (more on the way).
I see them all the time on Craigslist for $60.
Yes I see the sensors for the trailers. I do believe they are actually the same as the truck though. You just have to make sure the frequency matches, there are a couple different frequencies used. Right now there is only one in metro Detroit area.edit: I'm glad you said something -- I saw these on ebay, also for $60. Going to return the amazon order. Thanks
The sensors for trailers? These are not the same ones that go on your truck.
And I definitely don't see them for sale around here (DC area).
The trailer TPMS sensors are not the same as the truck tire sensors, and there are also no compatible aftermarket sensors reported working so far for the factory trailer TPMS.Yes I see the sensors for the trailers. I do believe they are actually the same as the truck though. You just have to make sure the frequency matches, there are a couple different frequencies used. Right now there is only one in metro Detroit area.
Mopar TPM Sensors set of 4 315 mhz P/N 56029526 - auto wheels &...
Mopar TPM Sensors set of 4 315 mhz P/N 56029526 $25 each $60 set will remove when sold live in zip 48044detroit.craigslist.org
Curiosity, what is the difference? All other tpms sensors are interchangeable between manufacturers, as long as the frequency is correct. The only thing I could see, would be signal strength, to send to a farther away receiver.The trailer TPMS sensors are not the same as the truck tire sensors, and there are also no compatible aftermarket sensors reported working so far for the factory trailer TPMS.
Try parking the Jeep right behind, and try pairing them to see. They would have to be proper frequency to have a chance. I haven't gotten an answer as to what would be different, as long as frequency matches. Let us know.Does the trailer TPMS work with any mopar tire pressure sensor?
I have Ram 3500 flat towing a Jeep JL.
Wanted to use the TTPMS to monitor the Jeep's tire pressure.
Just not sure do i have to drill 4 new holes on the rims to add extra trailer TPMS , or i can pair the original Sensor to Ram 's trailer TPMS ?
Thanks!
They use different protocols to transmit their data. It’s not at all as simple as the frequencies being the same.Curiosity, what is the difference? All other tpms sensors are interchangeable between manufacturers, as long as the frequency is correct. The only thing I could see, would be signal strength, to send to a farther away receiver.
The answer to this is in post #135.Does the trailer TPMS work with any mopar tire pressure sensor?
I have Ram 3500 flat towing a Jeep JL.
Wanted to use the TTPMS to monitor the Jeep's tire pressure.
Just not sure do i have to drill 4 new holes on the rims to add extra trailer TPMS , or i can pair the original Sensor to Ram 's trailer TPMS ?
Thanks!