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 sensing and diagnostic
module (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.
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.
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 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.
Year Module Built: The scan tool displays what year the module
was built.