Aspen 4WD V8-5.7L Hybrid (2009)
Tire Pressure Monitor Receiver / Transponder: Description and Operation
Tire Pressure Monitoring (TPM) Transponder - Description
DESCRIPTION
PREMIUM SYSTEM
A transponder, also known as a trigger module, is located in three of the four wheel wells (behind the wheelhouse splash shields) of the vehicle to
provide the WCM/SKREEM with the location of the tire pressure sensors on the vehicle. 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.