Just came across this Potential
gem in the G35 Canada area courtesy of zx10r_646
Like most of you I have summer and winter wheels , each with tire pressure sensors. I have been searching for a DIY so I do not have to take my vehicle to the dealer every time I swap my wheels to register the tpms wheel sensors.
I have finally found a way to reset the tpms and register the pressure sensor IDs without any special tools (with the help of OBD3 Solutions and their BLOG - http://blog.obd3solutions.com/en/?p=20)
OBD3 found a way to reset and put the tpms into learning mode with a piece of wire and then register the tpms wheel sensor IDs using a wheel sensor activation tool. So if you have a tool to activate the wheel pressure sensors, you are all set to re-calibrate your wheels sensors yourself.
But if you are like me and do not want to spend $300-$500 to purchase a wheel sensor activation tool such as the KTI pst (www.ktipst.com)
, the service manual describes a method of registering the wheel sensor IDs without the use of an activation tool. All you have to do is alter the pressure in each tire, put the tpms into learning mode and drive the vehicle until all of the wheel pressure sensors are registered.
So last night I experimented to see if I could use 1) the ODB3 method to reset and put the tpms into learning mode with 2) the method described in the service manual to activate the wheel sensors without an activation tool.
It worked... after a little experimenting. The steps I used to register my winter wheel sensors were:
1) set different tire pressures in each wheel: RF to 34psi, LF to 31psi, LR to 28 psi and RR to 26psi;
2) start engine;
3) perform the OBD3 procedure to reset and put the tpms into learning mode - tpms warning light should be blinking;
4) drive vehicle around at speeds greater than 40kph until the tpms warning light stops blinking and turns off. Note a short time later, the tpms warning light should go on and stay on (since one or more of your wheels will be lower that 28psi);
5) disconnect the wire from the connector; and
6) reinflate the tire pressure to spec. and drive around until the tpms warning light turns off.
With all the millions of TPMS threads that we've had over the years, I'm in shock that these guys at odb3solutions.com have figured it out. Many thanks to Larry for bringing this to the forum and I'm sure you can agree that the US folks should be seeing this as well.
My personal take? I'll continue looking at the warning light over the winter. Too many hoops to jump through 2 times a year, not to mention some minimal risk of electrical damage. Am I still impressed though - absolutely.