Poll: Winter Tires and Rims - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

NYC BRZ · 12-03-2012, 05:16 PM

Can anyone confirm the factory relearn procedure for these cars?

NRGBalanced · 12-04-2012, 12:45 AM

Quote:

Originally Posted by NYC BRZ

Can anyone confirm the factory relearn procedure for these cars?

As far as I know, "learning" new sensors isn't possible. The new sensor IDs have to be written to the ECU (body control unit?) via Techstream or a tool like the ATEQ Quickset or VT30 through the OBDII port. The sensors are constantly broadcasting but the car will never look for another set of IDs that are not in the computer.

BR Zenith · 12-05-2012, 06:28 PM

I put Blizzak WS-70's on the stock rims with TPMS. Haven't been able to test in ice or snow yet though.

davesrave · 12-08-2012, 03:48 PM

Quote:

Originally Posted by davesrave

Report #1: Drove home from work with the TPMS light on. The car was parked next to the sensors for a couple of hours before I went out. When I started it, the TPMS light was out! Drove about 7 miles, out for 2+ hours, drove the return trip home and the TPMS light is still out. Still not convinced this is going to be the long term scenario because I don't understand how this system works.

report #2: Dove to the airport, light came on in about 20 miles. 4 days later, returned home, car sat overnight and the next day the light was off. I am now convinced it is sensing the TPMS in the tires stacked next to it. Could the energy source be the tire pressure?

cnk · 12-08-2012, 03:52 PM

Quote:

Originally Posted by davesrave

report #2: Dove to the airport, light came on in about 20 miles. 4 days later, returned home, car sat overnight and the next day the light was off. I am now convinced it is sensing the TPMS in the tires stacked next to it. Could the energy source be the tire pressure?

The sensors have batteries in them. That's why they will eventually need to be replaced. Tire pressure has nothing to do with the power for the sensors. It is only the parameter that the sensors monitor.

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davesrave · 12-08-2012, 04:15 PM

[QUOTE=cnk;597862]The sensors have batteries in them. That's why they will eventually need to be replaced. Tire pressure has nothing to do with the power for the sensors. It is only the parameter that the sensors monitor.

Thanks. I found a Toyota Rav 4 TPMS description that seems to fit: http://rav4world.com/pdf/2006/tirepres.pdf

Some of the info:

This transmitter operates with a lithium battery, which lasts approx. 10 years.

If the lithium battery is depleted, replace the entire tire pressure warning valve and transmitter assembly.

If the battery voltage drops, the tire pressure warning antenna and receiver stores the DTC (Diagnostic Trouble Code) in its memory.

If the voltage drops even further and the transmitter stops working, it stores the DTC in memory and illuminates the tire pressure warning light to alert the driver.

Each transmitter has a built-in semiconductor to directly measure the tire pressure.

View Poll Results: Which winter tires/rim option did you choose? Also indicate which tire size.
Winter tires on OEM Rims	18	26.09%
Winter tires on Alloy rims with TPMS	4	5.80%
Winter tires on Alloy rims without TPMS	16	23.19%
Winter tires on steel rims with TPMS	1	1.45%
Winter tires on steet rims without TPMS	25	36.23%
Purchased 215/45/17 (OEM) winter tires	15	21.74%
Purchased 205/55/16 winter tires	21	30.43%
Purchase other sized winter tires.	4	5.80%
Multiple Choice Poll. Voters: 69. You may not vote on this poll

12-03-2012, 05:16 PM	#43
NYC BRZ AutoX Addict Join Date: Mar 2012 Drives: 08 Pontiac G8 GT,13 GBS BRZ Limited Location: Queens, NY Posts: 723 Thanks: 168 Thanked 118 Times in 83 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Can anyone confirm the factory relearn procedure for these cars? __________________ 2013 BRZ Limited- GBS - 6MT -VIN #0937 ~~NYR SCCA # 18 C Street R (CSR)~~ "But there’s no mistaking the noise. This car is loud, and not in a particularly nice way. There’s no crisp exhaust note, no induction wheezing. It’s just the sound of petrol exploding in a metal box." - Jeremy Clarkson

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12-05-2012, 06:28 PM	#45
BR Zenith Junior Member Join Date: Nov 2012 Drives: 2013 LR BRZ Limited Location: Maine Posts: 7 Thanks: 0 Thanked 3 Times in 3 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I put Blizzak WS-70's on the stock rims with TPMS. Haven't been able to test in ice or snow yet though.

12-08-2012, 04:15 PM	#48
davesrave Senior Member Join Date: Apr 2011 Drives: 2014 Boxster S; 2015 Macan S Location: MA Posts: 206 Thanks: 326 Thanked 233 Times in 63 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	[QUOTE=cnk;597862]The sensors have batteries in them. That's why they will eventually need to be replaced. Tire pressure has nothing to do with the power for the sensors. It is only the parameter that the sensors monitor. Thanks. I found a Toyota Rav 4 TPMS description that seems to fit: http://rav4world.com/pdf/2006/tirepres.pdf Some of the info: This transmitter operates with a lithium battery, which lasts approx. 10 years. If the lithium battery is depleted, replace the entire tire pressure warning valve and transmitter assembly. If the battery voltage drops, the tire pressure warning antenna and receiver stores the DTC (Diagnostic Trouble Code) in its memory. If the voltage drops even further and the transmitter stops working, it stores the DTC in memory and illuminates the tire pressure warning light to alert the driver. Each transmitter has a built-in semiconductor to directly measure the tire pressure.

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