I got my new 900mhz RTM and key fob. I remove the old 300mhz RTM and replaced it with the new 900mhz RTM. As expected, my old 300mhz key fob only works in the emergency slot, and I lost TPMS. I got a DTC: RTM U2100:00-2F Initial Configuration Not Complete. I went to the AsBuilt Configuration for the RTM and I loaded factory data from the internet. Then I did the module reset for the RTM. The DTC still remained.
I did the tire pressure monitoring system train, and I was asked to retrain the front left tire. I don’t have the TPMS learning tool so I let about 6psi out of the tire instead. It didn’t seem to do anything so I just aborted the TPMS procedure. I took a drive and about a minute later my tire pressures started to pop up in the IPC because they automatically learned.
I have tried to do the RTM module reset multiple times but the DTC still remains. Maybe I have to plug in my 300mhz RTM and save the AsBuilt data and write it to the new 900mhz RTM?? I only have one 300mhz key, and I haven’t programmed any 900mhz keys yet.