GM Service Manual Online
For 1990-2009 cars only
LF Tire Pressure: The scan tool displays 0-42 psi. The actual pressure of the left front tire.

LF Tire Status: The scan tool displays Data Pending or OK. Data Pending indicates that the left front tire pressure sensor is in stationary mode. OK indicates that the sensor is in drive mode.

LR Tire Pressure: The scan tool displays 0-42 psi. The actual pressure of the left rear tire.

LR Tire Status: The scan tool displays Data Pending or OK. Data Pending indicates that the left rear tire pressure sensor is in stationary mode. OK indicates that the sensor is in drive mode.

Manual Tire Programming: The scan tool displays Active or Inactive. Active indicates the Tire Pressure Monitor (TPM) system is in sensor programming mode. Inactive indicates the TPM system is not in the sensor programing mode.

RF Tire Pressure: The scan tool displays 0-42 psi. The actual pressure of the right front tire.

RF Tire Status: The scan tool displays Data Pending or OK. Data Pending indicates that the right front tire pressure sensor is in stationary mode. OK indicates that the sensor is in drive mode.

RR Tire Pressure: The scan tool displays 0-42 psi. The actual pressure of the right rear tire.

RR Tire Status: The scan tool displays Data Pending or OK. Data pending indicates that the right rear tire pressure sensor is in stationary mode. OK indicates that the sensor is in drive mode.

Tire Pressure Sensor ID: The scan tool displays Valid or Invalid. Valid indicates all of the TPM sensors are transmitting a valid identification code. Invalid indicates one or more of the sensors are transmitting an invalid, or no identification code.