Originally Posted by
pioneer4x4
FWIW, Chrysler has used magnets to trigger the sensor from the beginning. I have the actual Chrysler magnet that I used when reprogramming my 2002 Chrysler Town and Country Limited to recognize new sensors. I believe, but do not know for a fact that the system that Chrysler used originated from the Prowler with its lack of a spare tire, and they added also to the high end maxed out T&C Limited and Jeep Grand Cherokee Limited.
Our early build 2004 Pacifica used the magnet to retrain sensors.
The 2006 GC as the higher end system and has transponders in each wheelwell to read the sensor automatically.