[Shop-talk] OBD2 Scanner recommendations

[James Juhas]

Ronnie, thanks for the tip. I found it and it is indeed a good review. 
However, it never mentioned TPMS access, and I expect that the units 
reviewed are not robust enough to include the TPMS systems. The search 
continues. I found some devices that are dedicated to TPMS systems but I 
can't confirm they'll talk to the Mazda 3.


On 1/6/2025 9:58 AM, Ronnie Day wrote:
> The Project Farm YouTube channel 
> (https://www.youtube.com/@ProjectFarm/videos) has done at least one 
> comparison test. Good info.
>
> On Sun, Jan 5, 2025 at 8:39 PM Jim Juhas <james.f.juhas at snet.net> wrote:
>
>     Pat,
>
>     The Autel sensors I installed work on both frequencies, 315 and
>     433 MHz, and from what I found, Mazda uses 315 MHz.
>
>     I also found a procedure at Bartec that said to turn on the
>     ignition, then turn it off, wait 15 minutes and then drive over 15
>     mph for a while and everything should register. It didn't. I tried
>     the same steps but with triggering the sensors with the exciter
>     tool I had purchased for this purpose, but that didn't do it,
>     either. Bartec has a variety of tools for this, some priced under
>     $200 and they are the only supplier I have found so far that lists
>     a 2024 Mazda 3 in their literature.
>
>
>
>     On 1/5/2025 7:54 PM, Pat Horne wrote:
>>     Have you used there TPMS sensors before? There are at least 2
>>     frequencies that are used, maybe you have the wrong sensors.
>>
>>     Pat Horne
>>     We support Habitat for Humanity
>>
>>
>>     On Jan 5, 2025, at 6:47 PM, James Juhas <james.f.juhas at snet.net>
>>     <mailto:james.f.juhas at snet.net> wrote:
>>
>>     
>>
>>     All,
>>
>>     I'm looking for a recommendation for an OBD2 scanner capable of
>>     accessing the TPMS re-learning procedure on our 2024 Mazda 3. I
>>     just put winter wheels and tires on the car with new TPMS
>>     sensors. In spite of the owners manual telling me that the system
>>     should automatically read the new IDs simply by driving a certain
>>     distance, that appears to not be the case. I can't find any way
>>     to trigger a re-learn procedure using the car's menu settings. So
>>     I figure an OBD2 Scanner of some sort would take care of this
>>     task, since I expect that's what the dealer would do. I expect
>>     needing to go to the dealer each time I switch wheels will soon
>>     exceed the cost of the scan tool.
>>
>>     I do have a device that is supposed to wake up the sensors so
>>     that they will transmit their identity and data to the car's
>>     brain, but that didn't have any effect that I know of.
>>
>>     -- 
>>     <MGA_311_LRP_2.JPG>
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>
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