Conditions For Setting DTC
WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when ignition voltage is present at SDM and driver deployment loop resistance is more than 4.8 ohms. DTC will also set if circuit 347 voltage is less than 2.4 volts and resistance is more than 6 ohms. Fault must be present for 0.5 second.