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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 453 (Supplemental Inflatable Restraint System) >> Diagnostic Tests >> DTC B1140: Passenger-Side Sis Malfunction >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

Thoroughly check wiring and connectors. Malfunction is likely to be caused by an open or high resistance in passenger-side SIS circuits or by a short to ground or voltage in SIS circuits. A malfunctioning SIS or SDM could also cause condition.

NOTE: For circuit number and wire color identification, see WIRING DIAGRAMS .
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