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.

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

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

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

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

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

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

Julian Date of Build: This displays the day of the year the module was built.

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

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.