Grand Cherokee 4WD V8-4.7L Flex Fuel (2009)
Tire Pressure Monitor Receiver / Transponder: Description and Operation
Tire Pressure Monitoring (TPM) Transponder - Operation
OPERATION
Transponders located in three of the four wheel wells of the vehicle provide the Wireless Ignition Node (WIN) with the location of the tire pressure
sensors on the vehicle. The transponders are located in the left front, right front and right rear wheel wells. A fourth transponder is not necessary in the
remaining wheel well due to the process-of-elimination theory. Once the system knows the location of the first three sensors it assumes the location of the
fourth tire pressure sensor is in the left rear tire.
