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 a 4-digit number. This number is the SDM serial number.

Driver Belt Status Changed This Ignition Cycle: The scan tool displays Yes or No. Driver seat belt has been buckled or unbuckled after the ignition is turned ON.

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.

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

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

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

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

VIN Information: The scan tool displays a list. The Body Control Module (BCM) is programmed in the assembly plant with the last four digits of SDM part number and the VIN of the vehicle.

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