GM Service Manual Online
For 1990-2009 cars only

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 the GM part number that is stored within the SDM memory.

Base Part Number: The scan tool displays the SIR part number.

Calibration ID: The scan tool displays the calibration ID, which is the check sum of the SDM read only memory contents.

Component Serial Number: The scan tool displays the SDM component serial number that is stored within the SDM.

Driver Pretensioner Loop: The scan tool displays whether the driver pretensioner loop is enabled or disabled.

Driver Side Belt Status: The scan tool displays whether the driver seat belt is buckled or unbuckled.

Driver Side Loop: The scan tool displays whether the driver side loop is enabled or disabled.

Driver Stage 2 Loop: The scan tool displays whether the driver stage 2 loop is enabled or disabled.

Ignition Voltage: The scan tool displays 0-20 volts. This is the system voltage measured by the SDM between the ignition input and ground.

Julian Date of Build: This number represents the day of the year that the module was built.

Left SIS ID: The scan tool displays the driver SIS ID that is sent to the SDM when the ignition is turned ON.

Passenger Pretensioner Loop: The scan tool displays whether the passenger pretensioner loop is enabled or disabled.

Passenger Side Loop: The scan tool displays whether the passenger side loop is enabled or disabled.

Passenger Stage 2 Loop: The scan tool displays whether the passenger stage 2 loop is enabled or disabled.

PROM ID: The scan tool displays the programmable read-only memory (PROM) ID.

Right SIS ID: The scan tool displays whether the passenger SIS ID that is sent to the SDM when ignition is turned ON.

VIN Information: The scan tool displays the vehicle VIN number.

Warning Lamp On/Off Timer: The scan tool displays the time, in minutes, that the AIR BAG indicator has been turned ON.