Voice Activation System: Description and Operation

System Description

OUTLINE




- The VACS (Voice-Activated Control System) provides a safe and convenient way of controlling vehicle systems such as the audio, auto A/C and navigation (if so equipped). The system is controlled by the PTT (Push to talk) button. Voice commands are picked up by a microphone. When giving a command, voice feedback will be heard through the speaker, and messages will be shown on the display. Voice feedback can be turned off. Personal directories of nametags for radio station presets can be created, and spoken command help is provided.
- Refer to Owner's Manual for voice activated control system operating instructions.

Power is supplied at all times.
- through 15 A fuse [No. 52, located in fuse, fusible link and relay block (J/B)].
- to Voice Activated Control Module terminal 13.

With the ignition switch in the ACC or ON position, power is supplied.
- through 10 A fuse [No. 21, located in the fuse block (J/B) NO. 1].
- to Voice Activated Control Module terminal 20.

Ground is also supplied
- to Voice Activated Control Module terminal 14
- through grounds B17 and B57.

VOICE ACTIVATED CONTROL FUNCTION
When PTT switch pushed ON, signal is sent
- from steering switch terminal 2
- to multifunction switch terminal 7, then
- via multifunction switch, display and AV and NAVI control unit terminals 47 and 48 (with navigation system) or AV control unit terminals 49 and 50 (without navigation system) with AV communication line
- to voice activated control module terminals 35 and 36.

Voice activated control module displays "LISTENING" on screen when PTT switch is ON.

When any voice is input into microphone, voice signal is sent
- from microphone terminals 4 and 5
- to voice activated control module terminals 33 and 34.

When voice activated control module identifies voice signal as a command, it sends the signal
- form voice activated control module terminals 35 and 36
- to AV and NAVI control unit terminals 47 and 48 (with navigation system) or AV control unit (without navigation system) terminals 49 and 50 with AV communication line.

Then AV and NAVI control unit (with navigation system) or AV control unit (without navigation system) sends operational signal
- to display and audio unit and performs the voice command.

While voice activated control system is in operation, voice activated control module sends voice signal
- from voice activated control module terminals 25 and 26
- to BOSE speaker amp. terminals 26 and 42, and guides various operations.

Also at the same time voice activated control module sends mute signal
- from voice activated control module terminal 27
- to audio unit terminal 9.

In order to prevent any noise input into microphone.

AV COMMUNICATION LINE
Voice Activated Control Module is connected to the following units through AV Communication Line. Each unit transmits/receives data with AV communication line.
- AV and NAVI control unit (with navigation system)
- AV control unit (without navigation system)
- Display
- Audio unit
- Multifunction switch