Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Scan Tool Data Definitions
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.
- PSIR Suppression
-
The scan tool displays Enabled/Disabled. The signal from the SDM indicates whether the inflatable restraint IP module switch is in the ON or OFF position.
- 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 serial number of the SDM.
- Driver Frontal Loop
-
The scan tool displays Enabled/Disabled. The signal from the SDM indicates whether the driver frontal loop is enabled or disabled.
- 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.
- 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 number represents the day of the year that the module was built.
- Passenger Frontal Loop
-
The scan tool displays Enabled/Disabled. The signal from the SDM indicates whether the passenger frontal 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.
- Year Module Built
-
The scan tool displays what year the module was built.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.