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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 393 (Cellular, Entertainment, And Navigation - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> No Global Positioning System (GPS) Reception (Without UE1/UQT) >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

The A11 Radio receives information from the Cellular/GPS antenna element which is part of the T4P High Frequency Antenna located on the outside of the vehicle. The Cellular/GPS antenna element is connected to the A11 Radio via a shielded coaxial cable. The A11 Radio supplies 5 V through the coax cable to power the internal antenna amplifier.

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