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Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Accessories & Equipment >> Memory Modules >> Secondary And Configurable Customer Controls >> Diagnostic Information and Procedures >> Steering Wheel Controls Inoperative >> Circuit/System Verification
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Circuit/System Verification

Ignition ON, observe the scan tool steering wheel controls (SWC) Switch Voltage parameter. Pressing the switch should read voltage present, and drop to 0 volts when released.