Scan Tool Data Definitions

Scan Tool Data Definitions
Battery Voltage
The scan tool displays 8 - 14 volts. The amount of battery voltage available at the passenger door module (PDM).

LF Pressure Sensor ID
The scan tool displays a number up to 8 digits in length, or an asterisk. A number displayed indicates the tire pressure sensors unique identification (Id) code that was last learned for the left front location. Asterisks indicate the Id code has been cleared, or has not been learned for the location.

LF Pressure Sensor Mode
This data parameter indicates the mode contained in the last transmission received from the left front tire pressure sensor. The scan tool displays Stationary, Wake, Drive, Re-measure, Learn, Low Bat, or N/A. Stationary indicates the sensors internal roll switch is opened and the sensor has made its stationary transmission which only occurs once every 60 minutes from the last stationary transmission. Wake indicates the sensor is transitioning to drive mode. In this mode the sensor has detected an initial roll switch closure. Drive indicates the sensors internal roll switch has been closed for at least 10 seconds. In this mode the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 11 kPa (1.6 psi) change in tire pressure. This mode occurs to keep the system updated as to any changes in tire pressure. Learn indicates the sensor has been activated by a low frequency (LF) signal. Low Bat indicates the sensor's internal battery charge level is low. N/A indicates the sensor is in a mode not supported by the scan tool.

LF Tire Pressure
The scan tool displays 0 - 344 kPa (0 - 51 psi). The actual pressure of the left front tire.

LR Pressure Sensor ID
The scan tool displays a number up to 8 digits in length, or an asterisk. A number displayed indicates the left rear tire pressure sensors unique identification (Id) code, and that it has been learned into the PDMs memory. An asterisk indicates the sensors Id code has not been learned into the PDMs memory.

LR Pressure Sensor Mode
This data parameter indicates the mode contained in the last transmission received from the left rear tire pressure sensor. The scan tool displays Stationary, Wake, Drive, Re-measure, Learn, Low Bat, or N/A. Stationary indicates the sensors internal roll switch is opened and the sensor has made its stationary transmission which only occurs once every 60 minutes from the last stationary transmission. Wake indicates the sensor is transitioning to drive mode. In this mode the sensor has detected an initial roll switch closure. Drive indicates vehicle speed is greater than 32 km/h (20 mph). In this mode the sensors internal roll switch has been closed for at least 10 seconds and the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 11 kPa (1.6 psi) change in tire pressure. This mode occurs to decrease the time between when the pressure change occurred and the PDM has received it. Learn indicates the sensor has been activated by a LF signal. Low Bat indicates the sensors internal battery charge level is low. N/A indicates the sensor is in a mode not supported by the scan tool.

LR Tire Pressure
The scan tool displays 0 - 344 kPa (0 - 51 psi). The actual pressure of the left rear tire.

RF Pressure Sensor ID
The scan tool displays a number up to 8 digits in length, or an asterisk. A number displayed indicates the right front tire pressure sensors unique identification (Id) code, and that it has been learned into the PDMs memory. An asterisk indicates the sensors Id code has not been learned into the PDMs memory.

RF Pressure Sensor Mode
This data parameter indicates the mode contained in the last transmission received from the right front tire pressure sensor. The scan tool displays Stationary, Wake, Drive, Re-measure, Learn, Low Bat, or N/A. Stationary indicates the sensors internal roll switch is opened and the sensor has made its stationary transmission which only occurs once every 60 minutes from the last stationary transmission. Wake indicates the sensor is transitioning to drive mode. In this mode the sensor has detected an initial roll switch closure. Drive indicates vehicle speed is greater than 32 km/h (20 mph). In this mode the sensors internal roll switch has been closed for at least 10 seconds and the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 11 kPa (1.6 psi) change in tire pressure. This mode occurs to decrease the time between when the pressure change occurred and the PDM has received it. Learn indicates the sensor has been activated by a LF signal. Low Bat indicates the sensors internal battery charge level is low. N/A indicates the sensor is in a mode not supported by the scan tool.

RF Tire Pressure
The scan tool displays 0 - 344 kPa (0 - 51 psi). The actual pressure of the right front tire.

RR Pressure Sensor ID
The scan tool displays a number up to 8 digits in length, or an asterisk. A number displayed indicates the right rear tire pressure sensors unique identification (Id) code, and that it has been learned into the PDMs memory. An asterisk indicates the sensors Id code has not been learned into the PDMs memory.

RR Pressure Sensor Mode
This data parameter indicates the mode contained in the last transmission received from the right rear tire pressure sensor. The scan tool displays Stationary, Wake, Drive, Re-measure, Learn, Low Bat, or N/A. Stationary indicates the sensors internal roll switch is opened and the sensor has made its stationary transmission which only occurs once every 60 minutes from the last stationary transmission. Wake indicates the sensor is transitioning to drive mode. In this mode the sensor has detected an initial roll switch closure. Drive indicates vehicle speed is greater than 32 km/h (20 mph). In this mode the sensors internal roll switch has been closed for at least 10 seconds and the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 11 kPa (1.6 psi) change in tire pressure. This mode occurs to decrease the time between when the pressure change occurred and the PDM has received it. Learn indicates the sensor has been activated by a LF signal. Low Bat indicates the sensors internal battery charge level is low. N/A indicates the sensor is in a mode not supported by the scan tool.

RR Tire Pressure
The scan tool displays 0 - 344 kPa (0 - 51 psi). The actual pressure of the right rear tire.

Sensor Learn Mode
The scan tool displays Active, or Inactive. Active indicates the Tire Pressure Monitor (TPM) systems tire pressure sensor learn mode is active and able to learn all 4 sensor Id codes. Inactive indicates the TPM system is not able to learn the sensor Id codes.

Selected Front Tire Pressure
The scan tool displays the front tire pressure that was last selected for the vehicle.

Selected Rear Tire Pressure
The scan tool displays the rear tire pressure that was last selected for the vehicle

Selected Tire Type
The scan tool displays P-Metric Standard, P-Metric Extended, Load Range C, Load Range D, Load Range E. The tire type that was last selected for the vehicle.

Spare Tire Pressure
The scan tool displays 0 kPa/psi. This data parameter can be used to verify a 0 kPa/psi value.

Spare Tire Pressure Sensor ID
The scan tool displays a number up to 8 digits in length, or asterisks. A number displayed indicates an Id code as been unintentionally learned for the spare tire location. Asterisks indicate an Id has not been unintentionally learned for the spare tire location. This data parameter is used to verify a value of asterisks.

TPM System Enabled
The scan tool displays Yes, or No. Yes indicates the TPM System has been enabled in the PDM. No indicates the TPM System has not been enabled in the PDM.

Vehicle Speed
The scan tool displays 0 - 255 km/h (0 - 159 mph). The actual speed of the vehicle.