Passenger Resistance

The scan tool displays 0-6.3 ohms. The SDM performs the resistance measurement test once each ignition cycle and verifies the Ignition 1 voltage and 23-volt loop reserve are within the normal ranges. At that time, the SDM supplies a constant current to the passenger deployment loop. The SDM measures the voltage drop across the deployment loop and converts the measured voltage value to a resistance value of the passenger deployment loop.