Bought the magnet to trigger them.. but looking them over today I'm not sure how well that is going to work out since the valve stem is seated back in between spokes. Might end up on the phone with them for options on triggering them.

 

Are those big magnets meant to be used on the sensors before they get installed? Hoping this all gets figured out w/o the need to go to a dealer.

 

 

The magnet won't do you any good. You also need a Chrysler OBD III with a MB adapter.

 

LOL Bob. 200+ posts latter. I currently have the dash light disabled. Apparently I will never get this system back up and running, since I will not ever go to a Chrysler dealer for ANYTHING (well... maybe a Hellcat if I had the means).

 

DRB III Rental
Just saw this.

 

Opinion or knowledge on the magnet? I do know that is what they use to trigger sensors with the biggest part of the time. Does a DAS system work for you? When looking around in it - TPMS falls into chassis section which you can't access (for just browsing the program) without being hooked into the car. (When attempting to get my freebies working "We'll have to find the magnet" at the dealer)

 

My understanding - you set the cars system to a learn mode. Then starting with drivers front you use the magnet to trigger the signal from the TPM and the cars system logs the id - then move in a clockwise direction around the car repeating the sequence.

 

Browsing another car forum (Corvette)I see that several of the members simply use an old speaker magnet, or any old good size magnet. I guess the hole in the ring(donut)magnet doesn't have to go around the valve stem as I had thought?

 

This is true if you have magnet trigger sensors. If you have RF (radio frequency) trigger sensors the magnet will do nothing for them. The workaround should be when the car is in learn mode let air out of the LF until the DRBIII says received. Let us know your entire set-up and how it went.

 

If you can, have a tire shop read the ID's from your current sensors. Then buy the programmable sensor style that the tire shop "clones" from the original ID but have the tire shop pay special attention to keeping the same ID on the same corner of the car. Since the cars computer is receiving the ID's it was originally programmed for you have no need to go to the dealer.

 

Schrader 20028 TPMS Relearn Procedures | TPMS How-To | TPMSDirect.com


If they are not magnetic trigger.. I'd bet my tire store will work with me on this..


I'm "hoping" since OEM is magnetic these are designed accordingly .

 

One tire shop I stopped at had one of these... TPMS Sensor Activation Tool Test and Reset Tire Pressure Sensors | eBay You put the top end near the sensor push the button and it will tell you the frequency and signal strength of that sensor. If they are mag trigger flip it over so the big magnet at the bottom end will trigger them.

 

This has been proven on a Crossfire? Is this what you did; and it was successful? Sorry if you've clarified this earlier in the thread. If you did, I missed it. The further I read this thread, the more confused I get. It is madness!lol

 

I have tried to keep up to date on this TPMS issue since starting this thread and unless I missed something we are stuck with the OEM parts or the Schrader AirAware #20028 which fits most but not all of the Crossfires. Only the Chrysler dealers have been proven to get these sensors working properly to date, no matter what anyone says should or could happen at the tire dealers.

Forget the Schrader EZ sensors, they should work but there has been no post that I have seen where they have worked.

 

No fault of yours Dave. Thank you for the summary.

 

See 180's post RE:history thus the 20028 on my car.

These devices are way too simple yet dealers and tire shops don't get them. I was told as I was leaving the shop that the car would automatically relearn the new sensors. I asked the guy if he would bet the entire price of the set of tires on that statement, LOL!

Sensors are made in either 315 Mhz band or the 433 Mhz band to transmit an ID to the cars receiver. The cars receiver/computer is "trained" to listen for only the sensors on this car. Sensors are triggered to transmit by either a 125Khz radio frequency signal or a magnet.





If you install a new sensor you need to tell the car the new ID thus "train" the car. Not the sensor but the cars receiver.

Some companies make sensors with no ID in them, a blank CD ready to burn so to speak. The tire shop clones the original sensor ID into the "blank CD" so the car computer does not need to be trained.

This is the theory behind them, why some shops can't make them work on the Crossfire is beyond me.

 

The problem is getting the cars computer to interact with the sensors. You have to enter the cars brain to get things properly hooked up.
Many problems we have al go back to the complex brain in these cars.

 

It's literally this simple...

1. Connect a DRB III scan tool to the vehicle’s diagnostic connector beneath the instrument panel near the steering column.
2. Access the Chassis System using the DRB III.
3. Once in the Chassis System; select Tire Pressure Monitor, then select Miscellaneous Functions.
4. Select Train All Mode from the System Test screen.


So why all the difficulty?

 

My difficulty is that I don't have $3500 spare bucks to buy the Chrysler DRB III scanner, and I am not about to pay the dealer $300 for 10 minutes to have them use theirs, even IF they still have one AND still have someone capable of using it.

There's a thought !!! Maybe I'll give them a call, and if they have one maybe I can rent it for 10 minutes for $20 !!!!!!