Scan Tool Data Definitions

WARNING: This page is about a different car, the 2005 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

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.
Active Switch: The scan tool displays enabled or disabled. The signal from the inflatable restraints I/P module disable switch indicates whether the passenger frontal air bag is enabled or disabled.
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 Side 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 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: The scan tool displays a 3 digit number. Which represents the day of the year the module was built.
ROM ID: The scan tool displays a 4 digit number. This number is the programmable read-only memory (PROM) ID.
Year Module Built: The scan tool displays what year the module was built.