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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Suspension Control System - Suspension Leveling) >> Diagnostic Information and Procedures >> DTC C0660 >> Conditions for Setting the DTC >> C0660 01

C0660 01

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The exhaust valve or the circuits to the valve are shorted to voltage.