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Home >> Saturn >> 2009 >> Vue Red Line, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1140 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B1446 or B1447 >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2008 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the harness connector X1 at the VCIM.
  2. Using a DMM, test for greater than 15.5 volts between terminals 13 and 14.
    • If less than specified voltage, test the battery backup supply voltage circuit and battery backup low reference circuit for an open/high resistance or a short to ground. If the circuits test normal, replace the BUB.
  3. If all circuits test normal, replace the VCIM.
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