SIR Definitions

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.

Driver Belt Status Changed This Ignition Cycle: The scan tool displays Yes or No. Driver seat belt has been buckled or unbuckled after the ignition is turned ON.

Driver Seat Belt A/D: The scan tool displays 0 or 12 volts. If driver seat belt is buckled = 12 volts, unbuckled = 0 volts.

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.

Ignition Voltage: The scan tool displays 0-20 volts. The Ignition represents the system voltage measured by the SDM at its ignition feed.

VIN Information: The scan tool displays a list. The Dash Integration Module (DIM) is programmed in the assembly plant with the last 4 digits of SDM part number and the VIN of the vehicle.