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Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 409 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> OnStar Global Positioning System (GPS) Data Not Current or Inaccurate >> Circuit/System Description
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Circuit/System Description

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The vehicle communication interface module (VCIM) receives information from a specific navigation antenna located on the outside of the vehicle. The navigation antenna is connected to the vehicle communication interface module via a shielded coaxial cable. The antenna cable also provides a path for DC current for powering the antenna.

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