GM Service Manual Online
For 1990-2009 cars only

The SIR scan tool data definitions contain a brief description of all SIR related parameters available on the scan tool. The parameters that are available on the scan tool are listed below in alphabetical order.

Driver Seat Belt Switch: The scan tool displays Buckled or Unbuckled. The signal from the drivers seat belt switch indicates whether the driver seat is buckled or unbuckled.

Ignition Status: The scan tool displays the status of the ignition switch as on or off.

LF Sensor Range Information: The scan tool displays whether the LF passenger presence sensor range information is OK or not OK.

LF Sensor Voltage: The scan tool displays in volts the LF passenger presence sensor voltage.

LF Sensor Weight Information: The scan tool displays in lbs. the LF passenger presence sensor weight information.

LR Sensor Range Information: The scan tool displays whether the LR passenger presence sensor range information is OK or not OK.

LR Sensor Voltage: The scan tool displays in volts the LR passenger presence sensor voltage.

LR Sensor Weight Information: The scan tool displays in lbs. the LR passenger presence sensor weight information.

Number of DTCs: The scan tool displays the number of current DTCs.

Occupant Detection Sensor Status: The scan tool displays the current status of the occupant detection sensor.

Passenger Classification: The scan tool displays the classification of the passenger as determined by the passenger presence system.

Passenger Seat Belt Switch: The scan tool displays Buckled or Unbuckled. The signal from the drivers seat belt switch indicates whether the driver seat is buckled or unbuckled.

RF Sensor Range Information: The scan tool displays whether the RF passenger presence sensor range information is OK or not OK.

RF Sensor Voltage: The scan tool displays in volts the RF passenger presence sensor voltage.

RF Sensor Weight Information: The scan tool displays in lbs. the RF passenger presence sensor weight information.

RR Sensor Range Information: The scan tool displays whether the RR passenger presence sensor range information is OK or not OK.

RR Sensor Voltage: The scan tool displays in volts the RR passenger presence sensor voltage.

RR Sensor Weight Information: The scan tool displays in lbs. the RR passenger presence sensor weight information.

Sensor Range Information: The scan tool displays whether the passenger presence sensor range information is OK or not OK.

Total Weight Information: The scan tool displays in lbs. the total passenger presence sensor system weight information.