TPMS sensor not reading.

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Matt1977

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I have a 2018 ram bighorn. I just bought a set of aftermarket wheels and had my
Tires and factory tpms sensors put on the new wheels. 3 sensors are reading fine but my right front is blank like the sensor is dead. I’ve had the sensor tested and it’s working fine. My tire shop says I need to go to the dealership to have it reset. Anyone have this issue resolved without having to use the stealership?
 

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retired

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you can always try disconnecting the battery for 5 minutes. It is really hard to mess up the sensor. they are well protected and tough as nails.
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you can always try disconnecting the battery for 5 minutes. It is really hard to mess up the sensor. they are well protected and tough as nails.
View attachment 480009
Actually it is very easy to damage a sensor especially when removing them to put them on another set of wheels ....
 
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Another thing that might be wrong is the battery on the sensor ... most TPMS sensors last between 3-5 years and you have to replace them anyways ...

If they used the same nut to secure it, didn't use the correct valve core can also damage the stem, you can't use the same nut to secure it.
 

retired

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Actually it is very easy to damage a sensor especially when removing them to put them on another set of wheels ....
I have done it about 100X's and no way to damage it removing it. they are held on by torx screw you remove the sensor from the stem and screw it back on to the new stem after the new stem is installed on the wheel. I guess if a tire shop screwed it up I would be pretty worried about their ability to mount a tire properly.
 

PoMansRam

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There's zero programming required for OEM TMPS sensors on Rams. They sync themselves up with the truck, change positions w/out programming, etc..

There is a p/n change between ~2009-2014 and 2015+ I believe. Not sure if the two are compatible if you were to accidentally mix/match.
 

GTyankee

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The frequency was changed from 318 Mhz to 433 Mhz, sometime around, 2013. Some charts indicate that some 2008 Dodge Rams could be found using the 433Mhz TPMS, Mostly they had 318Mhz until 2013
 
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I have done it about 100X's and no way to damage it removing it. they are held on by torx screw you remove the sensor from the stem and screw it back on to the new stem after the new stem is installed on the wheel. I guess if a tire shop screwed it up I would be pretty worried about their ability to mount a tire properly.
Then if you have done it 100xs you would know that the damage happens when they are mounting or dismounting the tires, the techs usually don't take into account where the sensor is and snag it with the sidewall of a tire or with the tire iron ...

And you can also damage the valve stem, so many ways to damage sensors .... by the way, I worked on Big O Tires for 4 years or a little longer and TPMS sensors are one of the things we replaced all the time due to other tire shops damaging them ...
 

Bigskyroadglide

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OeM sensors will last a very long time. My 13 is on the original set, my 11 is on its 2nd set as in the originals and a oem replacement set.

Aftermarket is another story. 3 to 4 years at best.

I would say based on my experience and you have an 18, the sensor was damaged and will need to be replaced. A easy cheap test, would be to move the failed sensor to another wheel position, if the failure follows the location you have a bad sensor. You can do that my taking the wheel off and moving it, similar to a tire rotation
 

Rlaf75

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Sometimes after you remove all the tires to rotate them or whatever but dont put them back on in the same position the computer cant find the sensor(s). If ALL the sensors are correct for the vehicle and a tpms scan tool indicates they are reading properly I would recommend turning the key to the run position and but do not start the engine, add about 10 psi to each wheel then take the key out and walk away and let it sit for about 30 minutes. After 30 minutes go back out to the truck and start it to see if the light is out. If the light is out then reset the tire pressure to the correct psi and rock on. If the light does not go out then its possible a sensor is damaged. I have to do this procedure every once in a while on the fleet of promaster van's I work on. It seems the mopar tpms systems can be very finicky compared to other brands I've dealt with
 
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Sometimes after you remove all the tires to rotate them or whatever but dont put them back on in the same position the computer cant find the sensor(s). If ALL the sensors are correct for the vehicle and a tpms scan tool indicates they are reading properly I would recommend turning the key to the run position and but do not start the engine, add about 10 psi to each wheel then take the key out and walk away and let it sit for about 30 minutes. After 30 minutes go back out to the truck and start it to see if the light is out. If the light is out then reset the tire pressure to the correct psi and rock on. If the light does not go out then its possible a sensor is damaged. I have to do this procedure every once in a while on the fleet of promaster van's I work on. It seems the mopar tpms systems can be very finicky compared to other brands I've dealt with
They relearned themselves ... when I had my new wheels put on it took about 2 hours after I drove away from the shop that lifted and put the new wheels on it ....

That is why "I" personally think the sensor was damaged .... but if it was me I would replace all 4 of them since at least one of them is already having issues ...... piece of mind for me ...
 

Rlaf75

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They relearned themselves ... when I had my new wheels put on it took about 2 hours after I drove away from the shop that lifted and put the new wheels on it ....

That is why "I" personally think the sensor was damaged .... but if it was me I would replace all 4 of them since at least one of them is already having issues ...... piece of mind for me ...
It is very possible there is a bad sensor. Never said there wasnt and yes they are supposed to "learn themselves" and for the most they do. Sometimes the computer needs a little help to pick up the sensor. I've been a mechanic for almost 30 years and I'm one of many that maintain approximately 230 Ram Promaster van's and for whatever reason that procedure I mentioned previously has to be done occasionally (not every van) when the tires are replaced. In fact it just happened to me last week again.
 
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