Is there an inexpensive way to get TPMS tire transmitter hex codes without paying a tire shop to do so? Any inexpensive readers that work well on Amazon or wherever? Last year I attempted to get the hex codes with a USB SDR (software defined radio) setup that supposedly could do so but that was a failed experiment. Yesterday I changed all 4 tires at home using the old Harbor Freight tire machine and balancer, and while the tires were off the rims I wrote numbers 1-4 and took pictures of all the TPMS transmitters so I could check things out later with Techstream. I know I can drop tire pressure 1 tire at a time and watch it the computer. BUT, I also found out that the Amazon replacement TPMS transmitters I purchased had ALL THE SAME hex codes/serial numbers! Lol! So I took the car to my local tire shop and they were able to use a handheld TPMS receiver device on each tire and ID them, which I wrote down and did the Techstream thing to activate them. Now I have at least one bad TPMS transmitter for the last few months. I have one spare transmitter left of those 4 I got from Amazon. I hate bothering the tire shops to do this, as I like doing ALL my own work on my cars, and I know they don't like people coming in to have things done for free.
So you bought a set of transmitters from Amazon, and they actually transmit different ID codes, but they all have the same ID code printed on them? Do any of the actual ID codes match the one that's printed?
Generally the tools that can do this work with their branded TP sensors so autel tool autel sensors usually . Launch same and so on . GM has gotten smart on this a little orange $9 tool with a 9 volt battery in it strikes up a sensor test or relearn . As you see Toyota not soo. Much. None of the universal tools I've seen has tested to be universal you'll need a few other tools if you're working on other things . No one stop yet . Claimed yes . Proven nope.
Can you please provide a link to the sensors that you purchased on Amazon? Please upload the four pictures that you took of the actual sensors that you installed.
I just buy the red white v boxed Toyoda units for 45 bux delivered . By the looks of the markings from the manufacturer they don't look to be fakes and still working 3 yrs in .
I ordered a set of the BH SENS RDE228V21 from Rockauto. They are manufactured by a German company and are apparently direct replacements. The sensor IDs are apparently printed on the sensors and need to be added to the ECU with Techstream or OBD2 scan tool. The actual Toyota TPMS sensors are distributed by Denso and are manufactured by Pacific Industrial Corp. There are definitely cheap clones and fake Toyota sensors in the marketplaces.
If you look at the fake trail for Pacific . It's kinda like the silver lettering on Denso plugs . Get those letters looking correct and probably not fakes . I bought Toyoda boxed last year not fakes Toyoda part numbers . Still working
