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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 228 (Suspension Control System - Suspension Damping) >> Diagnostic Information and Procedures >> DTC C0575, C0580, C0585, or C0590 >> Circuit/System Verification

Circuit/System Verification

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Ignition ON, with the scan tool command the damper actuators ON and OFF while jouncing the vehicle in the front and rear. The suspension should change stiffness when commanded between the ON and OFF state.