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Home >> Cadillac >> 2012 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 1181 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> OnStar Global Positioning System (GPS) Data Not Current or Inaccurate >> Circuit/System Description

Circuit/System Description

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The navigation antenna is connected to the communication interface module (CIM) with a RG-174 coax cable. The CIM polls the data from the navigation antenna once every second.