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.

8-Digit GM Part Number: The scan tool displays an 8-digit part number. This number is the GM part number that is stored within the SDM memory.

Active Switch: The scan tool displays enabled or disabled. The signal from the inflatable restraint I/P module disable switch indicates whether the passenger frontal air bag is enabled or disabled.

ADS A/D: The scan tool displays 0-20 volts. This is the auxiliary discriminating sensor signal input signal into the SDM.

ADS Monitoring: The scan tool displays whether the ADS Monitoring is enabled or disabled.

Calibration ID: The scan tool displays a 4-digit number. This calibration ID is the check sum of the SDM read only memory contents.

Component Serial Number: The scan tool displays the SDM component serial number.

Driver Side Belt Status: The scan tool displays whether the driver seat belt is buckled or unbuckled.

Ignition Voltage: The scan tool displays 0-20 volts. This is the system voltage measured by the SDM between the ignition input and ground.

Julian Date of Build: The scan tool displays a 3-digit number. An example would be 723. 723 is July 23 which is day 204 based on the Julian Calendar.

PROM ID: The scan tool displays a 4-digit number. This number is the programmable read-only memory (PROM) ID.

Year Module Built: The scan tool displays what year the module was built.