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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1633 (Cellular Communication System) >> Diagnostic Information and Procedures >> DTC B2470: VCIM Does Not Detect The Presence Of The Cellular Antenna >> Circuit Description

Circuit Description

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The cellular portion of the cellular and navigation antenna is connected to the vehicle communication interface module with a RG-174 coax cable. The vehicle communication interface module polls the data from the antenna once every second.

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