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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1407 (Door System, Mirror System & Window System) >> Diagnostic Information and Procedures >> DTC B1721: Mirror Left and Right Control Switch Circuit >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

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The driver door module will ignore the continuous inputs from the switch. The driver door module will respond to all other valid switch inputs.