Circuit/System Description
WARNING: This page is about a different car, the 2010 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) and the passenger presence detection system modules perform tests to diagnose critical malfunctions. Upon a successful power-up mode the SDM will illuminate both PASSENGER AIRBAG ON/OFF indicators located in the overhead center console. If the SDM detects a fault in the passenger presence detection module, it may disable the front passenger air bag deployment loop, set DTC B0081 and illuminate the AIRBAG indicator.