Hello,

Two of the old sensors on our SRT6 failed (I assume batteries) about two weeks /1000mi ago at the NWCC meeting in Boise Idaho.

My original Schrader (52088990AC) TPMS sensors have two stickers on them. One sensor's sticker says "SBI INC 05948319. The other is a UPC bar code sticker and says 02815790202361. Does anyone know if either sticker contains the TPMS sensor ID code (eight digits)? Or does that have to be read electronically from the sensor itself.

My plan is to clone the old sensor ID's to new Schrader 33500 sensors, using a Bartec tool, if possible.


Thank you,
John & Terry

 

Hi! Were you successful?

 

The new sensors were cloned, by the technician using the Bartec tool. The technician then attempted a relearn sequence, following the prompts on the Bartec tool. This was not successful. Firestone, Costco and the Chrysler Dealer also tried, but couldn't perform a relearn sequence. I purchased a DRB III emulator and was able to perform the relearn sequence myself.

 

 

I can say what I have done, but it wasn't cheap, and it may not be the best solution for you.

I purchased this Micropod II emulator (about $170):
V17.04.27 wiTech MicroPod 2 for Chrysler Diagnosis & Programming Tool Multi-language
I have used it to perform a relearn sequence for the TPMS sensors, after they were replaced. It worked well for this. But it required I also purchase a laptop with windows xp or 7 operating system ($100 on ebay). The software is also challenging to install, and make work properly.

A whole sequence of software patches need to take place in a precise order to make the DRB III emulator work with the Micropod II. Networking must also be disabled. Once these software patches are installed, the unit seems to work well as a DRB III emulator. I was able to find the software and instructions online at no additional cost. I can say that the DRB III emulator is easy to use and worked great to perform a relearn sequence of the TPMS for my 2005 SRT6. I also used an Autel TS601 to make each wheel sensor "chirp" in the sequence requested by the DRB III.

I had previously taken my vehicle to our local Chrysler dealer to get the TPMS reset. They apparently couldn't perform the work, but still charged me $75 for trying. They instead said I needed a $300 (plus installation) module replaced. And that it "may or may not" fix the problem. It felt good to be able to do this work myself, and not have to rely on the BS I got from the dealer. I look forward to running further diagnostics on my vehicle.

 

You don't need to have the car's computer relearn the sensors since the new ones were cloned to the identical numbers of the old. There is nothing "new" for the car to learn or know. It thinks the originals are out there with the original numbers!

TPMS Explained

 

Yes, that is what I thought also. But that is not what happened in my small rural community..

First of all, due to lack of familiarity by both myself, and the technician performing the TPMS work, my vehicle's sensors were not replaced properly. And I had to unravel the problem. And then fix it: This is what happened to me (I earlier left out all the details):

First of all, the Bartec tool at the Goodyear tire shop has a menu that tells the technician which replacement sensors to use for each vehicle. That Bartec menu happens to have the wrong frequency information listed for my year and model Crossfire (2005 SRT6). The technician doesn't realize this, so he replaces my sensors with the wrong frequency sensors. The Bartec tool then attempts a relearn sequence with the wrong frequency sensors. The tool then says to go to the dealer.

The dealer can't find the problem, charges $75 and says a $300 part needs to be replaced that may or may not fix the problem.

Costco tries to fix the problem, but they also have a Bartec tool. So same outcome there. But at least they quickly, realize they can't help and don't charge anything.

Firestone then tries to solve the problem using their Snap On tool. They work on it about 1/2 hour. The Snap On tool talks to the Crossfire TPMS, but can't perform a relearn, because the wrong frequency sensors are installed. Firestone apologizes for why their $10,000 TPMS tool can't solve the problem, and doesn't charge. By this time a TPMS failure code gets permanently set in the system.

So I realize at this point that there is problem and I may need to try and fix this problem myself. Because tractors outnumber Crossfires 10000 to 1 where I live.

First of all I investigate (using helpful information from this forum) and discover the wrong frequency sensors were installed on my vehicle. Then I again check Crossfire Forum, purchase the dual frequency EZ sensors reccommended on this site, and have them installed and cloned to the old sensor ID's. That meant replacing the batteries temporarily in two of the four old sensors so they could chirp out their ID codes to be cloned. The technician then used the Bartec tool to read all the old sensors and clone everything. I was hoping that would solve the problem. But unfortunately, it didn't. Because a TPMS failue code was stored in the system, as a result of the previously failed relearn attempts.

So there was now one additional problem to overcome: Resetting the TPMS system failure code in the system.

That was done by using the DRB III, and following the on screen instructions to clear the failure code. Those instructions said a relearn sequence was required and automatically started the process. After the process was completed, everything worked fine.

And now you know the rest of the story. It's a real TPMS saga!

 

When you say "relearn" you are talking about placing the cars computer into "relearn" mode to learn NEW sensor codes, right? Regardless of who did what how... when clonable sensors are used there shouldn't be a tech in the world who would want to put the car into relearn mode.

If you are using the term "relearn" to apply to the cloning process then I might buy what they are trying to do.

"Resetting the TPMS system failure code in the ECM" Clint may have to answer this one but what code is it? My light has always gone out by itself AFTER driving a while.

You see the part number is different in what Clint says here... TPMS explained

 

In this particular case, the history of "who did what how" can not be disregarded. And a relearn was necessary after installing cloneable sensors.

Replacement VDO Redi-Sensors (SE 10001HP) were installed in my vehicle the first time. This is a pre-programmed 315 MHz sensor. Unfortunately, it was the wrong frequency. The technician then attempted a relearn sequence, connecting the TPMS tool (Bartec 300SD) to the vehicle's diagnostic port. This appears to be the standard procedure when using this product: https://www.redi-sensor.com/video-it...r-programming/ This procedure probably works well for most of the vehicles they service (assuming the proper sensors are installed), but not for our vehicles. I saved the original (Schrader 52088990AC) sensors. Turns out I would need them later.

The Firestone shop also attempted a relearn process through the vehicle diagnostic port. They really tried hard to solve the problem, but because the wrong frequency sensors were installed, their Snap On tool could not perform a relearn of the TPMS. Their Snap On tool did appear to communicate successfully with the Crossfire TPMS system, and attempted to perform a relearn process. But the process was unsuccessful, and had to be aborted. In my opinion, this operation would have been successful if the proper 433 MHz VDO Redi-Sensor (SE 10004A) had been installed, because VDO indicates their sensors support the 2005 SRT6. There is a manufacturer stated caveat that specialized equipment will be required for the relearn process when using their product with Chrysler Crossfires. I've got to give Firestone a lot of credit for all their help, even though I didn't purchase the sensors from them. Had I gone there in the first place, I probably wouldn't have experienced all these problems.

I'm not sure what the dealer attempted to do except charge me a lot of money for something I didn't need. Maybe they did try to do more. I don't know. They usually come out of the building to see the unusual car, when we pull up.

After all this happened, without any results, I decided it was time to go back to square one. I started here, on this forum. EZ sensors were recommended. So that's what I got (Schrader 33500/400 at the time). The technician cloned the ID's from the original sensors into the new sensors and installed them. I hoped the problem would be solved, because the TPMS would recognize the original sensor ID's cloned to the new sensors. Or, as you said: "There is nothing new for the car to learn or know. It thinks the originals are out there with the original numbers!". Unfortunately that is not what happened. The TPMS would not recognize the new sensors, even though they were programmed with the original ID's, and operated at the correct frequency.

There was no resource available in my area to troubleshoot my TPMS. So I ordered a Micropod II/DRB III Emulator from China, and got it to work. That's a whole separate story.

Perhaps one of these failed operations (attempting a relearn process with the wrong frequency sensor installed) caused the original sensor ID data stored in the TPMS to become corrupted. That would help to explain why replacing the wrong VDO sensors with the correct EZ sensors, cloned to the original sensor ID's, would no longer be recognized by the TPMS. Or perhaps a previous failed relearn process triggers an error code in the TPMS (the DRB III seemed to indicate this). I don't know for sure.

I do know that after all these failed relearn attempts a trouble code (system failure) was set in the TPMS that could only be read and cleared using my DRB III. As soon as I requested the DRB III to test the TPMS system, the screen indicated that a TPMS system failure code (caused by a failed relearn process) was present and would need to be cleared by performing a new relearn sequence. After I confirmed that I was ready, it instructed me to activate each individual wheel sensor, starting with the front driver's side and going around the vehicle clockwise. It beeped each time I activated the requested wheel sensor (using an Autel TS601). After about two minutes and four beeps, everything worked fine again. What a relief. The nightmare was finally over!

So in this particular case, the history of "who did what how" is important. And a relearn was necessary after installing cloned sensors. However, this is an unusual case.

These are my replacement (Schrader 33500/33400) TPMS sensor ID's (433 MHz):
FL-5A0B54
FR-5AC39F
RR-5AC504
RL-5A037B
These ID's were cloned from my original (Schrader 52088990AC) sensors.
The current Schrader Part No. is 33700.

My TPMS light has also always cleared itself before, when I corrected the low tire pressure causing it, or after driving. But not this time. It took the DRB III to clear it.

I am providing this information in the hopes it might benefit others and help them avoid the problems I experienced.
Test your knowledge and enter to win a hat. Take the TPMS quiz: https://www.redi-sensor.com/quiz2016/

Thank you for all your useful TPMS information and expertise provided in this forum. I would not have been able to solve my problem without the resources available here.
See you at CAA 10 https://www.facebook.com/events/caa1...4606334392491/