My problem with the tire pressure monitoring system (TPMS) is resolved. The dealer replaced a faulty tire pressure monitor (TPM).
Here is how the TPMS works on modern JK's with the "connectivity package":
Each valve stem has a pressure monitor and an RF transmitter. It transmits that tire's pressure and an ID number. The signal that the RF transmitter emits is read by the tire pressure monitor (TPM) while the vehicle is in motion. The TPM discerns where the signal is coming from (right front, left rear, etc). It is located centrally under the vehicle.
That transmitted ID number can also be read and recorded at each wheel by a TPS tool the dealer has and verified thru the OBD port. A mismatch means the transmitter is working but the receiver is not.
In my case, the signal from the wheel was being transmitted correctly, even with the Hutchinson Rock Monsters, but the TPM was interpreting its location wrong. When the TPM was replaced, it worked correctly.
This ability of the TPM to discern where the signal is coming from is what allows you to rotate the tires and use your spare and still get the correct reading on your dashboard. When you do rotate or swap wheels, it only takes about a mile of driving to reset.
Another word of caution though, there have been instances where other signal emitting devices are found to interfere with the TPM. If you get incorrect signals from your system, first try disconnecting the potential conflicts. I have a Garmin backup camera that wirelessly connects to the navigation. It was not causing a problem. I understand that certain USB devices will cause a malfunction.
I hope this helps.
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