TPMS Numbers Don’t Change

[chri5k]

The OP has posted a duplicate in another area. https://www.ramforum.com/threads/tpms-numbers-don’t-change.206783/post-2879147

 

[BossHogg]

Some Window tint will interfere with the TPMS signal

RAM uses separate antennas near each wheel, this is the reason you can rotate tires without having to do a TPMS relearn after a tire rotation.

 

[BossHogg]

When I connected to Alfa OBD it says I don’t have a TPMS module connected so I’m assuming my module is shot. It seems strange that I would still show numbers for tire pressure even though they never change.

The TPMS functions are processed by the RF HUB (as shown by 18crewdually). That is why I asked you previously (but unanswered) if your key FOB buttons are working as expected.

 

[ACB8]

My key buttons are all working as expected.

 

[ACB8]

RAM uses separate antennas near each wheel, this is the reason you can rotate tires without having to do a TPMS relearn after a tire rotation.

Am I looking for actual antennas or some sort of box etc…?

 

[ACB8]

Does the spare have a TPMS ?

No it does not.

 

[ACB8]

Tell us what you have done to your truck since you have owned it.
It could be as simple as wheel replacement or window tint.
Maybe obvious isn’t the issue.

I installed new wheels. I took my truck back to where the wheels were installed and they said everything looked fine. I recently had an alignment done and I had that company replace the TPMS sensors. And I’m still having the same problem.
I’ve done some electrical work but disconnected all of that to if it was causing interference but no change.
I did place soundproofing on the back wall of the truck around the module. There is no sound proofing on the module itself.
That’s all I’ve done.

 

[ACB8]

The only way I know is by using a tool designed to interact with a tire pressure sensor. The tools are readily available but will cost you a couple hundred for one of reasonable quality.

The TPMS has been working correctly until about a month ago.
Did the TPMS lamp flash or illuminate and stay on? This would indicate an issue with the system.
The new sensors, are they compatible with a 2016 RAM?
Are all your keyfob buttons working correctly?

It is highly unusual for all four tire sensors to quit working at the same time. Their lifetime is typically greater than 10 years. Something has changed.

It looks like the RF Hub may have failed but it should be able to say so through DTCs at the minimum. I would think the TPMS system would be squawking about not hearing any of the tire sensors. Have you scanned your vehicle for any DTCs? I read the TPMS section in the owner's manual but there isn't much information on system failure, nothing more than the TPMS light flashing at ignition on and then the TPMS lamp staying illuminated.

No codes have been thrown and no lights on the dash.
The sensors were installed by a well known tire chain that said they were specific to my Ram.

 

[mtnrider]

I did place soundproofing on the back wall of the truck around the module. There is no sound proofing on the module itself.
That’s all I’ve done.

^ That very well could be your problem. It could be blocking the signal to the RF hub, or at least deteriorating the signal to the point it is having a hard time reading it.

Did the issue start around the time you installed the sound proofing? It determines which sensor is in which wheel by rotational direction and signal strength to the RF hub. If you disrupt that you could be throwing the system off.

I would almost bet $ your sound proofing is your issue.....

.

 

[ACB8]

^ That very well could be your problem. It could be blocking the signal to the RF hub, or at least deteriorating the signal to the point it is having a hard time reading it.

Did the issue start around the time you installed the sound proofing? It determines which sensor is in which wheel by rotational direction and signal strength to the RF hub. If you disrupt that you could be throwing the system off.

I would almost bet $ your sound proofing is your issue.....

.

The more I think about I bet you’re right. Not sure of the timeline of when I put in the sound proofing to when I started having trouble but it’s gotta be close. Some of the wires are covered as well. I’ll post an update once I’ve removed it. Thanks!

 

[turkeybird56]

The more I think about I bet you’re right. Not sure of the timeline of when I put in the sound proofing to when I started having trouble but it’s gotta be close. Some of the wires are covered as well. I’ll post an update once I’ve removed it. Thanks!

IS your sound proofing "metallic" type lined, kinda look like aluminum foil over some type of material? IF so, might be a gotcha there, as aluminum foil can be used to block signals, heck it is even a quik remedy to cover key fobs and cell phones, just saying.

Your module may be perfectly fine just not receiving input. U just Neva know.

 

[ACB8]

IS your sound proofing "metallic" type lined, kinda look like aluminum foil over some type of material? IF so, might be a gotcha there, as aluminum foil can be used to block signals, heck it is even a quik remedy to cover key fobs and cell phones, just saying.

Yep, total metal top layer. If I was to pull out the module, away from the sound proofing but leave the wires connected, would it make sense that it should work then? Trying to avoid pulling out all the sound proofing if I don’t have to.

 

[turkeybird56]

Yep, total metal top layer. If I was to pull out the module, away from the sound proofing but leave the wires connected, would it make sense that it should work then? Trying to avoid pulling out all the sound proofing if I don’t have to.

I do not know. Not done ne stuff like U have. Aluminum foil well know radio wave interrupter. Nothing wrong with trying tho just remember has to receive info from all 4 wheels.

 

[Mister Luck]

I installed new wheels. I took my truck back to where the wheels were installed and they said everything looked fine. I recently had an alignment done and I had that company replace the TPMS sensors. And I’m still having the same problem.
I’ve done some electrical work but disconnected all of that to if it was causing interference but no change.
I did place soundproofing on the back wall of the truck around the module. There is no sound proofing on the module itself.
That’s all I’ve done.

I would only trust the opinion of the tire and wheel shop when they can verify which sensors they installed 433MHZ …

(if pressed for time a fledgling tech could mistaken Dakota as being similar 315MHZ)

The rims themselves can have issues with TPMS although not as likely, if your sound proofing material was installed prior to the sensor readings being frozen , you are going to need to verify that your work is not the issue.

Some sound deadening panels contain rubberized material under a sheet of foil …it could be the reflective qualities of the foil or rubberized materials are sometimes pigmented with a substance known as carbon black carbon black has certain electrical conductivity properties , tires rubber is pigmented with CB but the particulate size and possibly in combination with the foil backing of the sound proofing material could be a reasonable suspect.

How were your wheels balanced how much weight was used or did the wheel installers use “beads”?

What are your new tires pressure ratings ?
If the cold tire pressure is set to the standard door frame tag factory ratings there could be an issue with the internal pressure and or possibly condensation contamination from under inflated condition causing to overheat the air inside the tire.

Wheels can interfere with TPMS but since yours do not seem to be transmitting changes maybe it’s just an interference by another electronic device that is installed inside your vehicle or you carry with you.

I had an older iPhone that would transmit a static signal to my GMRS radio and could not have it powered on when conducting transmissions because It acted as if I had my mic button depressed or another person was engaged and using the frequency.

 

[Mister Luck]

RAM uses separate antennas near each wheel, this is the reason you can rotate tires without having to do a TPMS relearn after a tire rotation.

Some Window tint will interfere with the TPMS signal

2016 RAM Owners manual information

TPMS diagnostic information – RAM 1500 2008-2020 - ATEQ-TPMS

The RAM 1500 uses a direct TPMS system, find out TPMS diagnostic information including TPMS reset procedures, troubleshooting tips, and more.

www.ateq-tpms.com

 

[Rado]

Very interesting read ! Can not wait to see what the problem is ! Good Luck

 

[ACB8]

I would only trust the opinion of the tire and wheel shop when they can verify which sensors they installed 433MHZ …

(if pressed for time a fledgling tech could mistaken Dakota as being similar 315MHZ)

The rims themselves can have issues with TPMS although not as likely, if your sound proofing material was installed prior to the sensor readings being frozen , you are going to need to verify that your work is not the issue.

Some sound deadening panels contain rubberized material under a sheet of foil …it could be the reflective qualities of the foil or rubberized materials are sometimes pigmented with a substance known as carbon black carbon black has certain electrical conductivity properties , tires rubber is pigmented with CB but the particulate size and possibly in combination with the foil backing of the sound proofing material could be a reasonable suspect.

How were your wheels balanced how much weight was used or did the wheel installers use “beads”?

What are your new tires pressure ratings ?
If the cold tire pressure is set to the standard door frame tag factory ratings there could be an issue with the internal pressure and or possibly condensation contamination from under inflated condition causing to overheat the air inside the tire.

Wheels can interfere with TPMS but since yours do not seem to be transmitting changes maybe it’s just an interference by another electronic device that is installed inside your vehicle or you carry with you.

I had an older iPhone that would transmit a static signal to my GMRS radio and could not have it powered on when conducting transmissions because It acted as if I had my mic button depressed or another person was engaged and using the frequency.

My sound proofing definitely has metal in it. As far as the frequency the guys set I don’t know.
I did pull out the RF hub, away from the sound proofing while being connected and no changes.
I’m going to call the tire shop to see if the hub is working from the tpms side of things. I know it’s working as far as the radio and other functions go. I unplugged it and the truck was dead and not even turnover.
The wheel weights are the metal rectangles that stick to the rim. Double sided tape??
I’ve had the same tires since I bought when the TPMS worked so I would say it’s not the tires.
Thanks for all help.

 

[Rado]

Hope you find the answer soon

 

[ACB8]

Found this on You Tube,, Not sure it is what your issue is ! Hope it helps

2009-2012 Dodge Ram Tire Pressure Module Installation/Replacement Video

Video showing the install and location of your tire pressure module on your 4th gen Ram truck, also giving part number for EVIC cluster. Get your module here...

www.youtube.com

Now I could totally wrong but i think the TPMS system is part of the RF Hub and on a 2016 it’s on the back wall behind the seats. Can someone smarter than me confirm that?

 

[Rado]

Now I could totally wrong but i think the TPMS system is part of the RF Hub and on a 2016 it’s on the back wall behind the seats. Can someone smarter than me confirm that?

On site here or You Tube I think,, there is another thread that the wheel well transmitter was muddy ?
Just something else to think about

I am no gear head just a Crusty Old Fart lol