Honda Accord 2008 Manual page 2589

07/11/02 09:54:01 61TA0000_230_0145
Navigation System
System Description (cont'd)
Navigation Function
The navigation system is composed of the navigation unit, the ECM/PCM (vehicle speed signal), the GPS antenna,
microphone, the voice control switch, audio unit, and the audio-HVAC subdisplay unit.
Function Diagram
＊０２
XM ANTENNA
Reception of radio
wave from satellite
GPS ANTENNA
Reception of radio
wave from satellite
ECM/PCM
(VEHICLE SPEED PULSE)
GA-Net Bus Configuration
The GA-Net bus passes audio and navigation commands throughout the navigation and audio components. These
commands include navigation audio/XM selections by voice, and XM station and music title names. Because the
entire bus is interconnected between components, an open or short in the GA-Net bus harness may cause any or all of
these functions to become inoperative.
＊０３
23-144
XM RECEIVER
Receive
information
NAVIGATION UNIT
GPS RECEIVER
Detection of
vehicle position
Detection of
travel distance
YAW RATE SENSOR
Detection of
direction change
Navigation Display Unit
NAVI VOICE HandsFreeLink
CONTROL SWITCH MICROPHONE CONTROL UNIT
Voice Detect
recognition call phone
GPS tuning
Data process concerning map
Perception of
and vehicle position
vehicle position
Correction of
Map scroll
map matching
change of reduced
scale of map
−
DVD ROM
Reverse
signal
Audio Unit
XM Receiver
Audio Disc Changer
HFL
SWITCH
AUDIO HVAC −
AUDIO UNIT
SUBDISPLAY UNIT
Audio
guidance
NAVIGATION DISPLAY UNIT
VOICE
PROMPTS
LCD
Guide
processing
Backup
camera
Destination
processing
Interface dial
BACKUP
switch
CAMERA
(option)