Voice Recognition For Vehicles With Navigation And The SYNC System

WARNING: This page is about a different car, the 2008 Mercury Sable, 2008 Ford Taurus X, and 2008 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.

When a vehicle is equipped with both the navigation system and the SYNC system, the interaction between the audio system components is unique for voice recognition.

Both the navigation ACM and the APIM utilize voice-recognition, but in order for the modules to determine which one should be acknowledging the voice command, the voice command set is different. This allows the modules to identify the intended source when the VOICE button is pressed. The VOICE (an icon of someone speaking) and PHONE (an icon of a phone and an up-and-down arrow) buttons are wired to the navigation ACM, rather than to the APIM (as they are in non-navigation audio systems).

When the audio system enters voice recognition mode, the ACM sends a CAN message to the APIM to enter voice recognition mode. The microphone is wired directly to the APIM, which relays the microphone input to the ACM through dedicated wiring. Control of the voice functions is given to whichever module is indicated by the first voice command.