Author [NL] [FR] [ES] [DE] [SE] [IT] USA TPMS Frequency  (Read 2600 times)

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  • Offline STJIM   us

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    Offline STJIM

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    Re: USA TPMS Frequency
    Reply #24 on: Nov 26, 2022, 01.39 pm
    Nov 26, 2022, 01.39 pm
    T800XC said :  " Now there are two minor caveats that I must mention, but will be easily overcome...the valve on the programmable Autel MX sensors is straight rather than angled, and the diameter is 11mm whereas the old Triumph one I measured is 8mm."

    Ya, the difference in stem thread diameter would seem to be problem, but I asked Big Red about this and this was his reply :

     " The Autel MX sensor with the metal stem is a direct fit. Absolutely no issues on the C14."

    So I don't think this will be a problem on the Trophy, either since the LDL sensors on the C-14 & Trophy are identicaal..  Apparently the rim hole diameter is larger than 8 mm to fit the OD of the "sleeve" nut with the female threads that the 8mm stem threads into and this matches the AUTEL stem.

    The straight stem shouldn't be an issue - the C-14 has an OEM straight stem and there is plenty of room to get an air chuck on the stem. The C-14 also has  17 inch rims.
    Last Edit: Nov 26, 2022, 01.42 pm by STJIM
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  • Offline T800XC   england

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    Re: USA TPMS Frequency
    Reply #25 on: Nov 26, 2022, 01.44 pm
    Nov 26, 2022, 01.44 pm
    I've got a Tiger 800 rear wheel being dropped off at my place this afternoon for a TPMS re-fit. I'll take a look at the hole diameter on the wheel rim and check the fit of the MX-Sensor while I'm at it.

    Now I know which sensor works I'll try to read the ID etc from OEM one on the MaxiPAD before I fit it back on the wheel. I've never had any luck in the past but the latest software update may help.
    ...we are reviewing telemetric information in our mission simulator and will advise...

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    Re: USA TPMS Frequency
    Reply #26 on: Nov 26, 2022, 01.54 pm
    Nov 26, 2022, 01.54 pm
    Now that I know a little more about how a TPMS works,  a tool I bought a few years back to help doing the "Relearn" on my Chevy Cruze makes more sense - pic attached.  This tool only costs about $11 off EBay.

    After putting the car in the "Relearn" mode, the user is instructed to point the tool at each wheels valve stem in succession and press the button on the tool, in a certain order. 

    At the time I got the tool, I had no idea how it worked but now it seems obvious.  It must be transmitting a 125 KHz signal that wakes up the sensor.  The TPMS ECM then knows where that sensor is located because of the prescibed order that is stipulated for the Relearn process.



    T800XC :  Seems like this tool could be usefull to you for waking up a sensor during your testing.
    Last Edit: Nov 26, 2022, 01.57 pm by STJIM
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  • Offline STJIM   us

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    Re: USA TPMS Frequency
    Reply #27 on: Nov 26, 2022, 02.02 pm
    Nov 26, 2022, 02.02 pm
    *Originally Posted by T800XC [+]
    I've got a Tiger 800 rear wheel being dropped off at my place this afternoon for a TPMS re-fit. I'll take a look at the hole diameter on the wheel rim and check the fit of the MX-Sensor while I'm at it.

    Now I know which sensor works I'll try to read the ID etc from OEM one on the MaxiPAD before I fit it back on the wheel. I've never had any luck in the past but the latest software update may help.

    EXCELLENT !!
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  • Offline T800XC   england

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    Re: USA TPMS Frequency
    Reply #28 on: Nov 26, 2022, 05.27 pm
    Nov 26, 2022, 05.27 pm
    I tried the same tool a couple of years back and it wouldn't wake the Triumph sensors. I've tried it again today and it doesn't seem to wake the MX-Sensor either. Maybe I've got a duffer or maybe it's just too cheap & nasty.


    I've just tested the Triumph sensor off my mate's Tiger and I can now read it with the MaxiPAD if I select the correct settings. It displays the pressure, temperature and battery status and only works if the sensor is sat on, or very close to the reader. I couldn't get it to read the data if the sensor was mounted on the wheel once the tyre was fitted. I have another Tiger 800 in my garage and confirmed the same on that bike for both front and rear wheels. I just can't get the reader close enough to wake the sensor and read the data.

    FYI, these bikes both have original TPMS sensors, P/N: 08102. i.e. The type that are easy to take apart to replace the batteries.


    My 2019 Tiger 1200 has a set of the next gen sealed sensors, P/N: 12054, and I can easily wake these and read the data by holding the MaxiPAD reader up against the wheel or tyre. As soon as I do this the pressure information appears on the TFT dash, if the ignition is on.


    On the valve stem issue, the Tiger 800 wheel only has a hole just big enough for the 8mm valve to fit through. The Autel Mx-Sensor valves don't fit onto the 800 wheel without reaming the hole out a little.

    ...we are reviewing telemetric information in our mission simulator and will advise...

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    Re: USA TPMS Frequency
    Reply #29 on: Nov 26, 2022, 09.30 pm
    Nov 26, 2022, 09.30 pm
    Well that clears that up for sure.

    So what is the correct settings for the 800 ( early sensors ) ?

    BTW, I just got back in the house after playing around for a bit with the MAXI PAD and the Trophy sensors ( mounted in the tires ).

    I worked down the Part # listing and tried to read the mounted sensors without any luck so far.

    i did notice something tho with respect to the green light on the MAXI PAD.  For some 433 MHz part numbers selected after I hit the TEST button in the MAXI PAD Test Sensor screen, the green light stayed on steady.  But for some 433 MHz sensor part numbers, after I hit the TEST button on the screen,  the green light would start to flash and continue to flash until I hit the Cancel button on the screen.  I'm wondering if the green light flashes when the MAXI PAD is receiving data, or what ?  That has to indicate something,  but I would think if that's true the light would stop flashing  after the data stream ends, which can't last for that long.

    T800XC :  What is your opinion of what a flashing green light on the MAXI PAD might mean ?
    Last Edit: Nov 26, 2022, 09.32 pm by STJIM
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    Re: USA TPMS Frequency
    Reply #30 on: Nov 26, 2022, 10.09 pm
    Nov 26, 2022, 10.09 pm
    Sorry, I forgot to mention which setting. Select the A132G6017F sensor from the part number list or look it up under several Lotus models.

    As far as I can tell this sensor was also originally made by LDL, which is reassuring.


    Not sure about the green light on the PAD as I'd not paid much attention to it. Perhaps I'll take a look when I next use it.
    ...we are reviewing telemetric information in our mission simulator and will advise...

  • Offline STJIM   us

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    Re: USA TPMS Frequency
    Reply #31 on: Nov 27, 2022, 12.50 am
    Nov 27, 2022, 12.50 am
    Thanks!!

    I'll try to wake up the installed sensor and see if it will respond using the MAXI PAD.
    IBA #35372  Mile Eater Gold 8-2022
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