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TPMS (TIS) sensors for trailer (SOLVED - see 1st post) aka TTPMS - Trailer TPMS

One benefit to this was I was able to adjust my DTE (Distance to Empty) on my dash while using AlphaOBD. I took my car to the dealer and they could not do it. I contracted with a diesel tuner as he told me he could do it; he couldn't and I got my money back. Then, while in AlphaOBD, I see the menu selection for the gas tank. I had to convert gallons to liters and after entering the proper number of liters for my Titan fuel tank and immediately after pressing the program button, I saw my Range meter showing the true miles to empty. Pretty cool!
Well, now you’ve gone and done it. I’m gonna derail for a minute, since everything is answered about TTPMS, and A LOT of people are gonna want to know about this for certain. Was the number you changed under the setting ECU 4 Fuel Capacity? If so, what exact number did you change it to? What size titan tank do you have? And with a full tank (assuming it’s the 52 gallon tank), you are showing a range of about 900 miles? I ask all this because many have tried changing this, and the range doesn’t change from what the factory tank is when full, and the DTE will remain at about 50 for about 200 miles.
 
I just wanted to say thanks to all who took the time and effort to figure out how to get this done. I was very disappointed in Ram when I received my truck and the TPMS wasn't there; this after seeing movies and such touting its existence. Shame on Ram for doing this to customers. This is my 1st Ram as I have been a loyal Ford guy my entire life. It would be nice for Ram to reimburse us for the parts but I won't hold my breath.

One benefit to this was I was able to adjust my DTE (Distance to Empty) on my dash while using AlphaOBD. I took my car to the dealer and they could not do it. I contracted with a diesel tuner as he told me he could do it; he couldn't and I got my money back. Then, while in AlphaOBD, I see the menu selection for the gas tank. I had to convert gallons to liters and after entering the proper number of liters for my Titan fuel tank and immediately after pressing the program button, I saw my Range meter showing the true miles to empty. Pretty cool!

So, thanks to the guys who took the time to document the install, programming, parts list, and everything else to get this done. And thanks to Jimmy07 for the harness that apparently still isn't available. You guys should all be proud of the reverse-engineering you did to do for us what Ram would not. you guys rock!
View attachment 5393
I want to get the titan tank for my 2019 but was not happy that dte would be incorrect. Let me know if it is really working properly after changing the settings.

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Well, now you’ve gone and done it. I’m gonna derail for a minute, since everything is answered about TTPMS, and A LOT of people are gonna want to know about this for certain. Was the number you changed under the setting ECU 4 Fuel Capacity? If so, what exact number did you change it to? What size titan tank do you have? And with a full tank (assuming it’s the 52 gallon tank), you are showing a range of about 900 miles? I ask all this because many have tried changing this, and the range doesn’t change from what the factory tank is when full, and the DTE will remain at about 50 for about 200 miles.
I called Titan and they said I had a 50-gallon tank. I was under the impression it was a 52 gallon but I took their word for it. Yes, it was in the Fuel Capacity section and showed how many liters for the stock tank. Using an internet calculator, I put in the number of liters in 50 gallons. It was cool to watch as with the TPMS there was no indication it wrote the code. As soon as I pressed the button to write in AlphaOBD, I watch in amazement as the DTE wheel scrolled right before my eyes. I was about 3/4 full so I went to the gas station and filled up. The number you see is the new DTE that was calculated when I started driving after filling up. As I drove, the number changed a little as the MPH changed. It appears to be working great. This was one of those little things that make a big difference to me. Why would Ram care and stop dealers from being able to change the calculation if a bigger thank is used? Beats the hell out of me....I am pretty stoked that this fixed it and it is working as it should.
 
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I want to get the titan tank for my 2019 but was not happy that dte would be incorrect. Let me know if it is really working properly after changing the settings.

Sent from my SM-N950U using Tapatalk
It does appear to be working as it should. Get the tank and AlphaOBD.
 
And, I didn't mean to take over this thread with a completely different topic. I just thought it was an interesting side-note from my TPMS install.
 
So just want to do a quick chime in. Finally got astound to pairing my trailer sensors to the truck. Everything I wondered about......
1: did I get a factory defected sensor
2: did the dealer damage a sensor installing on tires
3: did the ttpms recieved module I paid extra for actually get on the truck
4: does the reciever module actually work
5: will I have to drain my tires empty to get them to pair up
all these questions and wonders and it was all over in 4 minutes time. I was blown away how flawless it went. Just as son as I drained 5-8 psi slowly by inserting my tire gauge, the horn would chirp and id move on to the next one. I was expecting to have to sit in the truck between tires and wait for the chirp but it was bam bam bam done wah hoo. Not at all bad compared to everyone else's experience. I did set my target psi a little high. It said that the low tire alarm will come on at 25% less the target psi and I didn't want to be notified that late so I bumped up the target psi to 85 so I should get an alarm around 64 , wich I don't mind traveling with a tire at that for a little ways as long as it's not down in the 40s and 50s.
 
So just want to do a quick chime in. Finally got astound to pairing my trailer sensors to the truck. Everything I wondered about......
1: did I get a factory defected sensor
2: did the dealer damage a sensor installing on tires
3: did the ttpms recieved module I paid extra for actually get on the truck
4: does the reciever module actually work
5: will I have to drain my tires empty to get them to pair up
all these questions and wonders and it was all over in 4 minutes time. I was blown away how flawless it went. Just as son as I drained 5-8 psi slowly by inserting my tire gauge, the horn would chirp and id move on to the next one. I was expecting to have to sit in the truck between tires and wait for the chirp but it was bam bam bam done wah hoo. Not at all bad compared to everyone else's experience. I did set my target psi a little high. It said that the low tire alarm will come on at 25% less the target psi and I didn't want to be notified that late so I bumped up the target psi to 85 so I should get an alarm around 64 , wich I don't mind traveling with a tire at that for a little ways as long as it's not down in the 40s and 50s.

Glad it went well for you Rich.



(Saved the rest of us from having to listen to him bitch about it for the next 3 weeks.)

LOL, J/K
 
If you can't get one from RAM, I have one that I made for sale on eBay. https://www.ebay.com/itm/224042186184?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

The price is more that what you can get from RAM, but it is labor intensive to make. Two of the members here are using mine as well as me having the first one I made in my own truck.

An old boss of mine quoted " When your nuts are in a vice, don't worry about the price."
Any chance you are going to make another pig tail adapter? I have the rest of the parts also but seems like this is an indefinite backorder or discontinued part. Let me know - and thanks so much for helping out!
 
I just posted another one on eBay.

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Has anyone bought/installed the tire pressure sensors on a towed trailer that can be viewed on the driver information center after being configured in the UConnect? Specifically for the 3500. I am looking for the part number for the sensor.

I've tried a couple of dealers and yesterday chatted and then emailed Mopar support. Chat referred me to email. Email sent me a totally useless reply. "After doing some research, I found that I only have part information for those that come equipped with a particular vehicle or that are compatible with a vehicle. I would suggest that you speak with an authorized Ram dealer for the part number for the Tire Pressure Sensors that would be used by the trailer towed by your truck. "

This being my first non GM truck after 40 years I am surprised that FCA support doesn't have part numbers. Seems like a black hole.


Mod Edit: OP hasn't been seen in a while so I'm posting a summary update here regarding the TTPMS:

Through diligence and hard work on the part of several members, the parts and process to add TTPMS has been discovered. There are several good summaries and instructions posted throughout the thread that I will attempt to cover below.

The parts required, discovered by several contributors and posted throughout the thread, was initially summarized by @thestuarts HERE.

PARTS REQUIRED TO ADD TTPMS to 2019+ RAM HD TRUCKS:
  • TTPMS bumper receiver: 68375990AC (Avg cost ~$70)
  • TIM headliner module: 68404893AB (Avg cost ~$70)
  • TIM Pigtail cable: 68412666AA (Avg cost ~$9)
  • The kit for the TPMS sensors (4) for trailer wheels is 68433188AA (best price I've seen posted not too far back in the thread @ $146)
    • Optional single sensors available as part #68375992AA
As of 6-21-20 You may find some of these parts, particularly the TIM module and jumper cable, currently out of stock everywhere, partly thanks to this thread.

You will need to install the hard parts. @Phil T excellent instructions pdf HERE.

The hardest part of this is pulling down the headliner (easier on 2020) to remove a dummy plug jumper and install the TIM and jumper cable.

TOOLS REQUIRED:
  • AlfaOBD for Windows (for 2019) or Android (2020 trucks) ($50)
  • Security bypass cable like the one from KAOdTECH. ($50)
  • Bluetooth OBD-II adapter like the OBDLink MX/MX+ ($80/$120)

You will need to enable the sales code option for TTPMS using the tools and components listed to "recode" the Body Control Module (BCM). There's a giant AlphOBD thread here if needing a primer. I used an ELM327 compatible OBD2 reader ($22 BAFX) with success.

Turning on the TTPMS option in the EVIC discovered HERE thanks to @g00fy

1589229719213.png



For the 2019 trucks, you may need to use the Windows version and select the MY2020 under advanced - also thanks to @g00fy
(ETA: AlphaOBD has been updated to include MY2019 TTPMS settings)

An excellent writeup using AlphaOBD Windows for a 2019 written by @Phil T HERE

He also suggested enabling "P/T chassis net: TTPM" . Unsure if this matters but it didn't cause any problems I'm aware of. The TTPMS setup docs may indicate that this is necessary:
"The TTPM sends the information to the TIM via the Controller Area Network-Chassis (CAN-C) to be transmitted to the IPC."

It may take serveral key cycles or time, or even overnight for the Tire Pressure options to show up in the U-Connect Trailer Settings once TTPMS is enabled.

@1FastHemi excellent post on adding the wheel sensors HERE:

I was unable to pair non-MOPAR sensors (external TireMinder) to the system. I don't believe anyone has been successful pairing non-MOPAR sensors.

Lastly, much of this could not have been possible without guidance and input and PARTS from @Jimmy07

Question: Do these instructions apply to 2019 2500's also? I have the bumper module installed but need the jumper?

Thanks, Morgan
 
Go back about midway through the pages, Phil T did a nice wright up on the instructions and also includes the 2019's as well. Plus others have installed on the 2019's and explain how you do so.
 
Question: Do these instructions apply to 2019 2500's also? I have the bumper module installed but need the jumper?

Thanks, Morgan

You need the TIM and jumper in the headliner.

Look at the first post, I put all the info there with links to all the currently published instructions, parts list, etc.

 
You need the TIM and jumper in the headliner.

Look at the first post, I put all the info there with links to all the currently published instructions, parts list, etc.

Has anyone confirmed if it works on the smaller 3.5" cluster screen? I've got the wiring at the back of the truck and I got one of the jumper wires from ebay so I will try it soon myself if not.
 
Has anyone confirmed if it works on the smaller 3.5" cluster screen? I've got the wiring at the back of the truck and I got one of the jumper wires from ebay so I will try it soon myself if not.

I'll say this again, you also need the TIM that goes in the headliner if you didn't already buy one.

Can't help you on the EVIC. Just a WAG, but I'm not hopeful it will work. You can try to enable it all without the parts present.

There were two "jumper wires" discussed in this thread. One was a DIY loopback to complete the circuit to the rear bumper module without an actual TIM present. The correct one is the pigtail jumper to connect the actual TIM.
 
Thanks. I have not bought the TIM yet, just the jumper pigtail that PhilT is making. I figure if it doesnt work I'll gladly let someone else have it. I will order myself Alfa OBD, etc and try to enable it first before I acquire the rest of the parts.
 
Thanks. I have not bought the TIM yet, just the jumper pigtail that PhilT is making. I figure if it doesnt work I'll gladly let someone else have it. I will order myself Alfa OBD, etc and try to enable it first before I acquire the rest of the parts.

The jumper PhilT is selling does not do anything without the TIM.

You can enable the feature, but you'll still get the "Service Required" error after a key cycle. Only by either plugging in a TIM, or by doing a test plug loopback as described elsewhere in this thread, will you not get the Service Required error and be able to initiate the TPMS sensor pairings. How you do that without the 12" Uconnect is beyond me.
 
I understand the wire doesn't work without the TIM. The wire seems to be the hardest part out of all of it to get so I bought it when I came across it on eBay. I also found this video on youtube where they are using the 8.4. So maybe it will work.
 
Tim, Did you have the TIM module already installed in your truck before you started your TTPMS project?

Thanks, Morgan

Here is the step by step. I don't think it is working yet though. There may be another missing piece we haven't stumbled across yet. Since you will be in and changing things, the trailer aux cam settings are also in the document.
 
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