Circuit Description
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. 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) performs tests to diagnose critical malfunctions within the SIR system. The SDM monitors the I/P module disable switch-signal and I/P module disable switch indicator-control circuits in order to determine whether or not to disable the inflatable restraint I/P module. The SDM also monitors the I/P module disable switch-signal and the I/P module disable switch indicator-control circuits for an open, high resistance, short to ground or short to voltage condition.