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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Mirror System) >> Diagnostic Information and Procedures >> DTC B1722 >> Circuit Description

Circuit Description

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The driver door switch (DDS) and passenger door switch (PDS) control the power folding or power extending functions of the outside rearview mirrors. The fold/extend motors are controlled by the switches through the fold/extend and unfold/retract control circuits. The door switches monitor the control circuits for fault conditions when power folding or power extending functions are requested prior to activating the function and during operation.