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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 98 (Air Bag Restraint Systems) >> Diagnostic Tests >> DTC B0022: Driver Frontal Deployment Loop Resistance Low >> Circuit Description

Circuit Description

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.

When ignition is turned on, Sensing & Diagnostic Module (SDM) performs tests to diagnose critical internal malfunctions. SDM monitors driver-side air bag high-side and low-side circuit voltage difference. SDM uses voltage difference to calculate circuit resistance. A low deployment loop resistance indicates driver-side air bag module circuits are shorted together.

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