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Home >> Chevrolet >> 2012 >> Caprice 3.6 3 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock System And Release Systems >> Diagnostic Information and Procedures >> DTC B2971 >> Circuit/System Verification

Circuit/System Verification

Insert the key into the driver door lock cylinder, turn the key to the unlock position while observing the scan tool Door Key Cyl Unlock Switch parameter, the value should change from Inactive to Active.