Circuit/System Description
WARNING: This page is about a different car, the 2018 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
When voice recognition for the Navigation system is started, voice signals from the cellular phone microphone are passed to the Navigation control module. When the Infotainment voice recognition system is started, voice signals from the cellular phone microphone are passed through the Navigation Control Module to the Human Machine Interface Control Module via the voice recognition audio circuits.