Caliber L4-2.4L (2009)
Tire Pressure Monitor Receiver / Transponder: Description and Operation
Tire Pressure Monitoring (TPM) Transponder - Description
DESCRIPTION
A transponder, sometimes referred to as a trigger module, is located in three of the four wheel wells (behind the wheelhouse splash shields) of a vehicle
equipped with Premium TPM. These transponders are used to provide the Wireless Control Module (WCM), commonly referred to as the Sentry Key
Remote Entry Module (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. On this vehicle, there is a transponder located in the left front, left rear, and right rear wheelhouse. There is not a transponder located in
the right front wheelhouse.
