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.

Carline: The scan tool displays what the carline the vehicle is.

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

Driver Frontal Loop: The scan tool displays whether the driver frontal air bag deployment loop is enabled or disabled.

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: 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 Frontal Loop: The scan tool displays whether the passenger frontal air bag deployment loop is enabled or disabled.

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

Restraint ID: The scan tool displays the seventh digit of the VIN which defines the type of restraint system the vehicle has. There will be either a 2 or a 4. The 2 represents a frontal air bag system and the 4 represents a frontal and side air bag system.

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