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ONSTAR ONE OR MORE BUTTONS INOPERATIVE OnStar One or More Buttons Inoperative Was the attempt successful? Diagnostic Aids Assistance Center Step Action Value(s) Yes No Schematic Reference: OnStar Schematics 1 Did you perform the Diagnostic - Go to Step 2 Go to 2 1. Turn ON the ignition, with the engine OFF. 2. Press each OnStar® button one at a time. Are all buttons inoperative? IMPORTANT: Contact the OnStar® Call Center first - Go to Step 4 Go to Step 3 3 Are any buttons intermittent or - Go to Step 7 Go to Testing 4 1. Turn OFF the ignition. 2. Disconnect the OnStar® button assembly. 3. Turn ON the ignition, with the engine OFF. 4. Measure the voltage from the keypad supply voltage circuit 9 V
2007 Hummer H3 2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3
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