LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Cadillac >> 2009 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> OnStar Global Positioning System (GPS) Data Not Current or Inaccurate >> Circuit/System Description
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Description

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

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.