GM Service Manual Online
For 1990-2009 cars only
Battery Voltage Signal: The scan tool displays the vehicle battery voltage signal that the remote control door lock receiver (RCDLR) receives via the serial data bus.

LF Pressure Sensor ID: The scan tool displays the 8 digit identification (ID) number of the left front (LF) tire pressure sensor.

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 Learn, Re-measure, Drive, Stationary, or Wake. Stationary indicates the sensors internal accelerometer indicates the vehicle is not moving, and the sensor has made its stationary transmission. Wake indicates the sensor has transitioned to Drive mode. In this mode the accelerometer has detected vehicle speed greater than 40 km/h (20 mph). Drive indicates the sensors accelerometer has detected vehicle speed for at least 10 seconds. In this mode the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 8 kPa (1.2 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 signal.

LF Pressure Status: The scan tool displays the overall condition of the tire. The conditions that display are Unknown, Normal, and Low.

LF Tire Press. Sensor Status: The scan tool displays Normal Mode, Fault, or Low Battery. Fault indicates the sensor has detected an internal malfunction. Low Battery indicates that the sensors internal battery has a low state of charge.

LF Tire Pressure: The scan tool displays 0-889 kPa (0-129 psi). The actual pressure of the left front tire.

LR Pressure Sensor ID: The scan tool displays the 8 digit ID number of the left rear tire (LR) pressure sensor.

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 Learn, Re-measure, Drive, Stationary, or Wake. Stationary indicates the sensors internal accelerometer indicates the vehicle is not moving, and the sensor has made its stationary transmission. Wake indicates the sensor has transitioned to Drive mode. In this mode the accelerometer has detected vehicle speed greater than 40 km/h (20 mph). Drive indicates the sensors accelerometer has detected vehicle speed for at least 10 seconds. In this mode the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 8 kPa (1.2 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 signal.

LR Pressure Status: The scan tool displays the overall condition of the tire. The conditions that display are Unknown, Normal, and Low.

LR Tire Press. Sensor Status: The scan tool displays Normal Mode, Fault, or Low Battery. Fault indicates the sensor has detected an internal malfunction. Low Battery indicates that the sensors internal battery has a low state of charge.

LR Tire Pressure: The scan tool displays 0-889 kPa (0-129 psi). The actual pressure of the left rear tire.

RF Pressure Sensor ID: The scan tool displays the 8 digit ID number of the right front (RF) tire pressure sensor.

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 Learn, Re-measure, Drive, Stationary, or Wake. Stationary indicates the sensors internal accelerometer indicates the vehicle is not moving, and the sensor has made its stationary transmission. Wake indicates the sensor has transitioned to Drive mode. In this mode the accelerometer has detected vehicle speed greater than 40 km/h (20 mph). Drive indicates the sensors accelerometer has detected vehicle speed for at least 10 seconds. In this mode the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 8 kPa (1.2 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 signal.

RF Pressure Status: The scan tool displays the overall condition of the tire. The conditions that display are Unknown, Normal, and Low.

RF Tire Press. Sensor Status: The scan tool displays Normal Mode, Fault, or Low Battery. Fault indicates the sensor has detected an internal malfunction. Low Battery indicates that the sensors internal battery has a low state of charge.

RF Tire Pressure: The scan tool displays 0-889 kPa (0-129 psi). The actual pressure of the right front tire.

RR Pressure Sensor ID: The scan tool displays the 8 digit ID number of the right rear (RR) tire pressure sensor.

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 Learn, Re-measure, Drive, Stationary, or Wake. Stationary indicates the sensors internal accelerometer indicates the vehicle is not moving, and the sensor has made its stationary transmission. Wake indicates the sensor has transitioned to Drive mode. In this mode the accelerometer has detected vehicle speed greater than 40 km/h (20 mph). Drive indicates the sensors accelerometer has detected vehicle speed for at least 10 seconds. In this mode the sensor is transmitting once every 60 seconds. Re-measure indicates the sensor has detected a 8 kPa (1.2 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 signal.

RR Pressure Status: The scan tool displays the overall condition of the tire. The conditions that display are Unknown, Normal, and Low.

RR Tire Press. Sensor Status: The scan tool displays Normal Mode, Fault, or Low Battery. Fault indicates the sensor has detected an internal malfunction. Low Battery indicates that the sensors internal battery has a low state of charge.

RR Tire Pressure: The scan tool displays 0-889 kPa (0-129 psi). The actual pressure of the right rear tire.

Selected Front Tire Pressure: The scan tool displays the tire placard information that has been selected in the RCDLR. The scan tool displays 176 kPa (25 psi) - 552 kPa (80 psi).

Selected Front Tire Type: The scan tool displays the tire placard information that has been selected in the RCDLR. The scan tool displays [N/A], P-Metric Standard (S), P-Metric Extended (X), Load Range C, Load Range D, or Load Range E.

Selected Rear Tire Pressure: : The scan tool displays the tire placard information that has been selected in the RCDLR. The scan tool displays 176 kPa (25 psi) - 552 kPa (80 psi).

Selected Rear Tire Type:: The scan tool displays the tire placard information that has been selected in the RCDLR. The scan tool displays [N/A], P-Metric Standard (S), P-Metric Extended (X), Load Range C, Load Range D, or Load Range E.

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