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Home >> Buick >> 2021 >> Envision Preferred, AWD >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraints System >> Diagnostic Information and Procedures >> DTC U3000 (K36 Restraints Control Module) >> Circuit/System Description

Circuit/System Description

The internal fault detection is handled inside the control module. The symptom byte information is for engineering reference only. No external circuit diagnosis is involved.