[TPS] when the battery dies in these you need new ones? how long do they last?
Why are people thinking there are batteries in the TPS? I don't know either way, but I find that hard to believe for a number of reasons:
1) It is not typical for TPS systems.
2) It is a VERY unfriendly place to have a battery.
3) If there were a battery, there would be no need for the bike to have to be MOVING before it will give a pressure reading, which is does. Typically, it is the spinning that generates the power needed to power up the transmitter.