Thread: TPMS question
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Old 12-26-2018, 04:40 PM
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Default Re: TPMS question

From CLint's Keyboard:

The big trick is getting a Crossfire to "relearn" new sensor IDs when batteries in the old sensors die. Seems many are lasting 10 years or so, but now that is catching even the newest Crossfire cars. The sensors themselves are not all that special, the same ones were used in Chrysler minivans, in Vipers, and a few other cars. Sensors from Mopar (made by Schrader) will work, direct from Schrader, and I expect many other aftermarket sensors will work - IF you get the car to recognize them.

That is where many tire shops and even Chrysler dealerships will mess up. Most Chrysler cars after Crossfire build time have systems in the car which will automatically recognize that new wheel pressure sensors have been installed, and learn the IDs of the new sensors - just by driving the car for a few minutes (to get the sensors broadcasting their radio signals). Crossfire cars do NOT have the additional antennas, etc. to do this. But lazy or hurried or uniformed techs will assume a Chrysler Crossfire will just learn new sensor IDs without them doing anything but physically installing the sensors in the wheel.

OTHER trick is getting the car into sensor "relearn" mode. This requires the DRB III dealership diagnostic computer tool -- which was obsolete after 2007 for Chrysler dealerships. And to work with Crossfires (or Sprinter vans) needed an additional Multiplexer cable, and Crossfire software card. Which some dealerships never bought, or if bought in 2004, have been lost since. BUT: several indicators say that current Chrysler dealership diagnostic equipment SHOULD have a DRB III Enhanced Emulator function available! So if you can find a Chrysler dealership game to learn something new about their equipment, they CAN do the TPMS sensor relearn on a Crossfire!

EASIER CHEAPER WAY: Find a tire store which can and will CLONE the old working sensor IDs into new sensors. This is by far the fastest easiest, one-stop approach. As long as they can read the old sensor IDs, new sensors can be set to use the same IDs, So no car-side "relearn" necessary!