TPMS issue or bad RF hub?

[906_BilletSilver]

I have a 2019 Ram 1500 Bighorn and after putting my winter tires on, none of the TPMS are reading.

I had aftermarket wheels on for the summer and previous winter, and my stock rims with the stock TPMS sensors have been sitting for ~1 year in storage. This summer I had winter tires mounted on the stock wheels and they sat for about 3 months until I recently installed them. After swapping tires and wheels, my truck doesn't read all 4 of my TPMS. The truck read perfectly fine with my aftermarket wheels until I removed them. I also figured it was unlikely that all four batteries would die at the same time, even after sitting for a year.

I read that they could go dormant after sitting, someone said they could be reactivated with pressure changes; I tried deflating and reinflating ( 15 psi) on a wheel, with no luck. Next, a trip to the Ram dealer, as they might have the tool required to reactivate them. They agreed its highly unlikely that all four batteries would die at the same time, but they've seen a similar sensor dormancy happen to some people. They took a look but informed me that there's actually a problem with my truck's RF hub and that they couldn't connect to it. They also said this was the cause for the TPMS error, but said they couldn't do any more diagnostics until I drop it off for an appointment.

As far as I know, I've never had any issues with the RF hub before and my TPMS was actively read and updated, until exactly when I swapped wheels. Does this RF hub seem like a real issue or did my local dealer give me the run-around until they have more time?

Does anyone know anything else I could try to reactivate/reconnect my TPMS in the week I have until another scheduled appointment with the dealer? I have strong mechanical aptitude and J-scan if that helps.

Thanks in advance!

 

[Richard320]

You had no problems until you swapped tires and wheels? Stop right there. What are the odds that the RF hub will die at exactly the same time?

It's more likely that the TPMS batteries croaked one at a time over a short period of time, but you didn't see it happen so it looks like they all died at once. They are all pretty much the same age and have driven the same miles. I recently replaced all of mine when I got new tires. Whether it was the time, the distance, or the speed, I don't know, but I drove it around about 5 miles including on the freeway before they started reading finally.