GM Service Manual Online
For 1990-2009 cars only

Inflatable Restraint Sensing and Diagnostic Module (SDM)

Ignition ON/Engine OFF/Driver Seat Belt Buckled

Scan Tool Parameter

Data List

Units Displayed

Typical Data Value

Calibration ID

Module 1 Information

Numeric

Varies

Driver Belt Status Changed This Ignition Cycle

Inputs

Yes/No

Yes

Driver Seat Belt A/D

Data

Volts

12 volts

Driver Seat Belt Status

Inputs

Buckled/Unbuckled

Buckled

PROM ID

Module 1 Information

Numeric

Varies