Theory of Operation
The Tire Pressure Monitoring (TPM) Sensor actively monitors the air pressure, air temperature inside the tire, the direction of the tire rotation and the internal battery status. Each sensor has a unique ID code. The TPM Sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Tire Pressure Monitoring (TPM) Module.
The Tire Pressure Monitoring (TPM) Sensor actively monitors the air pressure, air temperature inside the tire, the direction of the tire rotation and the internal battery status. Each sensor has a unique ID code. The TPM Sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Tire Pressure Monitoring (TPM) Module.
The Tire Pressure Monitoring (TPM) Sensor actively monitors the air pressure, air temperature inside the tire, the direction of the tire rotation and the internal battery status. Each sensor has a unique ID code. The TPM Sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Tire Pressure Monitoring (TPM) Module.
The Tire Pressure Monitoring (TPM) Sensor actively monitors the air pressure, air temperature inside the tire, the direction of the tire rotation and the internal battery status. Each sensor has a unique ID code. The TPM Sensor transmits the data at regular intervals via an encoded signal to a receiver circuit located in the Tire Pressure Monitoring (TPM) Module.
When installing a new Tire Pressure Monitoring (TPM) Module, the module is programed with universal IDs for the Tire Pressure Monitoring (TPM) Sensors. The TPM Module must be programmed with the correct TPM Sensor ID's.
Note. FF is the default value. If this value is found, the TPM controller has not been programmed.
The vehicle Tire Pressure Monitoring (TPM) Sensor locate process occurs after the vehicle is stationary for more than 20 min. The TPM system will determine the sensor positions while driving at speeds above 24 km/h (15 mph). This process can take up to 20 min to determine TPM Sensor positions.
The vehicle Tire Pressure Monitoring (TPM) Sensor locate process occurs after the vehicle remains stationary for 20 minutes. The Tire Pressure Monitoring (TPM) Module will determine the TPM Sensor positions. The TPM Sensors themselves determine which side of the vehicle they are located on.
The vehicle Tire Pressure Monitoring (TPM) Sensor locate process occurs after the vehicle remains stationary for 20 minutes. The Tire Pressure Monitoring (TPM) Module will determine the Tire Pressure Monitoring (TPM) Sensor positions. The TPM Module measures the signal strength of each TPM sensor and determines if the are in the front or rear.
Note. When this DTC is active the TPM Module will enter a deactivation mode (Winter Mode) and the TPM system becomes deactivated. If winter tires and wheel assemblies are installed no repair is required.
The Tire Pressure Monitor (TPM) Module determines the TPM Sensor positions by performing the vehicle Tire Pressure Monitoring (TPM) Sensor locate procedure. This procedure is run after the vehicle has been stationary for 20 minutes. After driving the vehicle at speeds greater than 24 km/h (15 mph) for a minimum of 10 minutes without the TPM Sensor installed, the TPM Module sends a bus message commanding the TPM telltale lamp to flash for 75 seconds. After the 75 seconds of flashing, the lamp will remain on solid and a chime will be heard. The message center will display SERVICE TPM SYSTEM for five seconds and shut off, all while the tire pressure values will be displayed as dashes. After the ignition has been cycled off and on the TPM telltail lamp will remain off, the message center will no longer display SERVICE TPM SYSTEM, and the tire pressures continue to be displayed as dashes.