TPMS with Torque Pro? Any figure this out?

Getting the IDs from the sensors requires a radio receiver tuned to this purpose. No software phone app, by itself, can perform this hardware function. That "tire assistant" reads out whatever IDs are registered in the car, not any transmitted IDs directly from new or different tire sensors.

You can buy TPMS equipment that will read the sensor IDs and data directly from the tire sensor, but it will have a 3-digit price tag, not 2 digits. I have two older ATEQ devices (sensor reader, and car programmer) for this function, but there are newer / better / cheaper products available.

 

It would be much faster and cheaper and less intrusive for them to just use their RF tools to read the IDs through the sidewalls. When I missplaced the IDs on a seasonal set I bought, the same shop re-read and reprogrammed them in for free the next year. All done in maybe a couple minutes. Then I made very sure to properly re-read them out from the car to make a saved copy ...

... and while filing that copy, I found the missing original.

 

So I should make friends with someone who owns one of these three digit price-tag tools first, to get the IDs of all of the wheels. Then I should purchase Techstream and a cable to enter those IDs into the TPMS module.

That is why sears wanted so much to change the TPMS IDs stored in the TPMS module.

American cars can be made to "Re-learn" the sensors. You put the car into "re-learn" mode and you use a $13 tool.that sends an RF pulse into the TPMS sensor through the sidewall. The TPMS sensor replies with a signal that the car understands that contains, and the horn beeps to confirm that the pulse was received. Takes about a minute to do.

According to a Youtube video I watched: the procedure on a Toyota is similar, but the tool costs $869, and the TPMS IDs get stored in the tool, istead of directly read by the car. After you pulse the four t you plug the tool into the ODBII port, and it writes the new IDs into the TPMS module. The video show it taking 30 seconds with the expensive tool.

 

This seems to be the norm on U.S.-based brands, but not on Asian brands.

The price you quote is for just one specific model. There are many others from various makers at various price points, depending on your shop or home needs and wants. You should be able to find something for around a couple hundred now, and they will work on most car brands, not just on a single brand. My ATEQs do both my Toyota and Subaru, and cost about $350 for the reader-programmer pair at that time. If you otherwise already knew the IDs, then the programmer only, for $150, was sufficient. But better and cheaper products are available now.

The first time I needed TPMS ID reprogramming, the nearest Les Schwab tire shop was charging $20 for this service for walk-in customers not buying other products or services. But then they balked when the vendor updating their programmer database hadn't yet caught up to my model year, so I had to go pay 3X that at the car dealership. By the second time, I had acquired the tools, so have never paid for such service again. And with two TPMS cars in the household needing twice-yearly seasonal swaps, even those overpriced and outdated ATEQ tools have long since paid for themselves.

 

Current Techstream definitely runs on Windows 10. I bought it on Amazon July 2019, but I never got the Techstream installation to work.

 

I have Techstream running on Win10 64 bit version perfectly.
No issue with Techstream itself, but you need to have proper driver for the “cable”.
(I have not even tried the one provided on the CD.)

 

Yes, Torque Pro can do it, at least for 3 first tires (I didn't figure out yet how to get data from second frame and only 3 tires are in the first frame):
Header: 750
pressure PID: 2130
temperature PID: 2116
start codes: atcea2a\natta2a
stop code: atcea
pressure equation (X=A, B or C depending of tire number): X*0,0172-0,4829
temperature equation (X=A, B or C depending of tire number): X-40

For the last tire it's necessary to use flow control to get data from CAN, I hope that it will be possible to merge both frames and extract byte with value for 4th (and possibly 5th) tire. I hope anyone have solution for that.

 

Hello, thanks for this info. Would you mind taking a screen shot of your custom PID entry? I have added a few custom ones, but they were basic ones like the HV battery fan speed.

Is the pressure start code atcea2a? Or atcea2a\natta2a? Plus I don't understand the equation. is it A*0,0172-0,4829 written exactly like this on the equation line?

Thanks for your help.

 

So, nowadays, is there any stand alone solution to get those pressure values at eye level ?

 

Autel AP200 reads data and can write sensor numbers.

 

If the goal is to simply display the four pressures while driving, I'm sure a ScanGauge can do it. The original ScanGauge II could not, then they announced a firmware upgrade for it that allows showing the tire pressures. I've never gotten around to sending mine in for the update. They have a newer ScanGauge III out with more of a smartphone-like display (SG II was just a two-line text LCD) and if it can't I'd be surprised.