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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1289 (Supplemental Inflatable Restraint System) >> Diagnostic Information and Procedures >> DTC B0072 or B0073 >> Conditions for Setting the DTC >> B0072 06, B0073 06

B0072 06, B0073 06

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The SDM detects the seat switch signal circuit or low reference circuit is shorted to ground or an open for 500 milliseconds.