I've found many different projects concerning TPMS 433 MHz sensors but all the projects were created with the goal to read tyres pressure.
I am not able to find any project with some kind of sensor activation tool. In particular I'm interested in Suzuki sensors. AFAIK they use Continental system thus it might be similar with other cars producers.
In theory the simplest method is to send 125 kHz signal to sensor and sensor should start working and answer with 433 MHz data sent regularly every x seconds. However simple 125 kHz signal doesn't work here.
I'm guessing that for activation either different frequency should be used, either its necessary to send specific data.
Have you perhaps see any project covering this area or how to start doing such a TPMS sensor activation tool? All suggestions are welcome.
And that's quite challenging as you know well tha these are big companies and don't provide such info for everyone. Thus I can see some possibilities, either some reverse engineering, either some radio signal recording and analysing either some project on the net which already did sth similar and could be good starting point.
I'm afraid You need a lot of luck and waiting for anyone having experience in things like this. I don't have it and can't contribute more.
Good luck anyway.
Yeah sure they have... But I would like to build it by myself. Connecting rfid wirter to arduino or other similar board like esp32, esp8266 is so easy... The problem is what exactly triggers the sensors and how to determine that... In theory I could even borrow tpms professional tool for short time but how to "record" its signal and on which frequency etc. I'm guessing it might be either different frequency (even a bit) or which is more probable some specific sequence like which triggers tpms sensor activation...
The problem is that these cheap USD $10 activation tools doesn't work with Suzuki Vitara. Some have the list of cars with which they work and it's not on this list. If there any Suzuki models on the list they are usually older ones produced before 2013 and not newer. I've even checked two big shops to check if they work with suzuki tpms sensors (made by continental) and they answered that not.
Thus could you perhaps give any link as it could happen I missed sth?