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Home >> Hummer >> 2007 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular, Entertainment, And Navigation >> Diagnostic Information and Procedures >> OnStar Button LED Inoperative >> Circuit/System Verification

Circuit/System Verification

Ignition ON, With the scan tool command the VCIM to turn on the red and green LED.

If the red or green LED indicators do not illuminate, go to Circuit/System Testing.

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