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.

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 digits of the SDM serial number.

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

Driver Side Impact Sensor (SIS) ID: The scan tool displays a 2-digit ID number. The ID signal sent to the SDM from the left SIS.

Front End Sensor #1 ID: The scan tool displays a 2-digit ID number. The ID signal sent to the SDM from the left front end sensor.

Front End Sensor #2 ID: The scan tool displays a 2-digit ID number. The ID signal sent to the SDM from the right front end sensor.

Ignition Voltage: The scan tool displays 0-20 volts. Ignition represents the system voltage measured by the SDM at its ignition 1 voltage feed.

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.

Passenger Side Impact Sensor (SIS) ID: The scan tool displays a 2-digit ID number. The ID signal sent to the SDM from the right SIS.

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

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