bluedevil30 wrote:Recently, I had 2 TPMS sensors replaced by a large chain tire store on my 2009 M35X. The car failed to receive the TPMS signal and showed ***. I had to go back 2 times and call the sensor mfg. customer support before we resolved the issue.
Just because a tech's tool (Bartek) is receiving the TPMS signal doesn't mean the car is. In order for my M35 to receive the signal, my car's TPMS computer had to be reset using the tool. Only then did the car see the new sensors.
Yes, the tool does two things: receive the sensor signal/ID, and then write the ID to the tpms control unit.