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Home >> Pontiac >> 2007 >> Solstice Base, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> OnStar One or More Buttons Inoperative >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the inside rearview mirror.
  2. Ignition ON, test for voltage between 9.8-10.2 volts between the supply voltage, terminal 6 and ground.
    • If less than specified values, test the circuit for an open/high resistance, or for a short to ground. If the circuit tests normal, test or replace the VCIM.
    • If more than specified values, test the circuit for a short to voltage. If the circuit tests normal, test or replace the VCIM.
  3. If the circuit tests normal, test or replace the inside rearview mirror.
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