USA TPMS Frequency

[STJIM]

Very Cool !!

I'd like to know more about the 434 MHz USB receiver :  make, model, etc.  and where you got it from.

[T800XC]

Some progress....

My MX Sensor arrived today and I tried numerous settings, including 433MHz Mazda sensors, without any luck. So I've decided to try the tedious task of going through all of the supported 433MHz sensors in the Autel MaxiTPMS Pad software.

The good news is that I've found one that produces both pressure and temperature readings on the bike's CAN bus!

However, at this stage I can't get the readings to appear on the dash of my virtual Tiger 800. There are status bytes within the CAN data that tell the dash / instruments what to display and I have some information on what they all mean, but I can't yet see why the current readings are not displaying. I'm looking at the by sniffing the CAN bus which is how I know the sensor is working.

I need to find out which manufacturer the sensor is used by, which is another long winded job. Sometimes you can just put the part number into Google and find it, but I've not been able to identify this one. I'll just go through the A-Z list of manufacturers for all countries in the Autel software, then through all vehicle models and years until I find it. I should also continue through all sensors by part number and see what others produce results. I'm not sure how many times the sensor can be programmed so I hope I don't kill it!

If this works, my sensor only cost £25, so a bargain for anyone wanting TPMS without paying Triumph prices.

[Maxime]

Keep up the good work.
Thats way out of my leak.
 

[trophied]

Maybe one of these LDL part numbers?  32700052, 42300124 / 12237.  I found them when I did a search for Harley Davidson tire pressure sensors because I recall someone saying that they used the same sensors as the Trophy.  From the site that popped up they show images of the front and rear, and the rear for Harleys is different, but the front looks identical to ours.  At the bottom of the discriptive info is the "manufacturers part number".

https://tire-pressure-sensor.com/harley-davidson-cvo-touring-front-rear-tire-pressure-sensors-tpms/

[STJIM]

Nice work !! Sounds like fun !
Could you please tell us whcih make / model auto resulted in the pressure & Temp data getting on the CAN bus ?  I would like to see if I can retrieve the ID of my installed OEM sensors using the MAXI PAD.

I'm pretty sure you can program the MX sensors multiple times.

Don't know if this attached file will help :

[T800XC]

Originally Posted by STJIM

Nice work !! Sounds like fun !
Could you please tell us whcih make / model auto resulted in the pressure & Temp data getting on the CAN bus ?  I would like to see if I can retrieve the ID of my installed OEM sensors using the MAXI PAD.

No vehicle make / model needed (or at least I've not yet found it), just use the part number option and select '030190'.

As I recall, you can't retrieve OEM sensor IDs using MaxiPAD or any other system because they don't support the 125kHz wake-up system. You can only read the IDs from the labels on the module or PCB, or by readign what's programmed into teh immobiliser.

[STJIM]

Thanks for the part number.

Some guys on the other forums said they could.  How else can the MAXI PAD clone a sensor ?  it must send out the 125KHz to interrogate the old sensor to get it's ID.  That's the only signal a sensor can receive - they aren't bi-directionalas far as data is concerned.

I want to find out for myself.  I'm retired and have plenty of time on my hands ( and I'm an old electronic tech and EE ).

[T800XC]

Originally Posted by STJIM

How else can the MAXI PAD clone a sensor ?  it must send out the 125KHz to interrogate the old sensor to get it's ID.

For most sensors the 125kHz signal method works to clone them because the LF receiver is enabled.

The LDL sensor that I tested a few years back uses the Infineon SP370 sensor chip and didn't appear to have the 125kHz LF receiver enabled and I couldn't find the antenna for it. The MaxiPAd wasn't able to wake it, but spinning it on a length of string or in my cordless drill did wake it. I did have 6 spare LDL sensors but don't think I've got any left so I can't revisit this.