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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 >> No (or Noisy) OnStar Audio >> Circuit/System Testing

Circuit/System Testing

IMPORTANT: If the navigation mono audio signal low reference circuit is shorted to voltage the VCIM has been damaged and requires replacement.
  1. Test for high resistance at the navigation mono audio signal circuit terminal 1 for an open or for a short to ground or for a short to voltage.
  2. Test for a high resistance, or for a short to voltage at the navigation mono audio signal low reference circuit terminal 2 for an open.
  3. If the circuits test normal, test or replace the VCIM.
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