2006 ACURA CSX navigation

SymptomDiagnostic procedure Also check for
23-277

















 







Voice guidance cannot be heard, is
broken up, or there is static
Symptom Troubleshooting
(see page 23-341) Volume or voice feedback setting
(see Owner’s manual)
Navigation unit
Stereo amplifier
Harness/fuses/switches
Voice control does not work/
respond Symptom Troubleshooting
(see page 23-342) Navigation unit
The wrong color DVD is installed
The DVD is damaged or dirty
Microphone harness/switches
HandsFreeLink control unit
Navigation cannot control HVAC by
voice command Symptom Troubleshooting
(see page 23-346) The wrong color DVD is installed
Harness/fuses/switches
Wrong navigation unit (model
code)
Navigation cannot control XM radio Symptom Troubleshooting (see page 23-350)Low or weak battery
Navigation cannot control audio
system Symptom Troubleshooting
(see page 23-349)Wrong color DVD
Navigation display buttons do not
work or respond properly Symptom Troubleshooting
(see page 23-340) Navigation unit
Open/short between the XM
receiver or the GA-Net bus
The wrong color DVD is installed
The DVD is damaged or dirty
Today’s Destinations button is dim
and not selectable in the Enter
destination by screen (grayed-out) The client has not entered a group
of locations for Today’s Destinations.
This is normal. The button is only
selectable if the client is using this
functionSee Owner’s Manual
Some set-up and information
functions of the navigation system
are grayed-out and do not work Client did not select OK from
Disclaimer screen. Refer to System
Function Diagram (see page 23-289)
Previous Destinations button is dim
and not selectable in the Enter
destination by screen (grayed-out) The vehicle may be new, or the
customer deleted the destination.
Enter a destination, and allow the
system to route to it. After the trip,
the Previous Destinations button
will be selectable
Address cannot be found or system
gives poor routing Verify proper operation and
system limitations using the
owner’s manual.
See Answering client question
Navigation coverage in general
troubleshooting
Refer to Database limitation in the
navigation system manual to
report database errorsDatabase limitations (address not
in database)
The wrong color DVD is installed
OPEN/CLOSE function of the display
does not work Symptom Troubleshooting
(see page 23-351) Navigation unit
Harness
Navigation display will not close Symptom Troubleshooting (see page 23-352) Navigation unit
Harness
Navigation display does not open or
opens part way Symptom Troubleshooting
(see page 23-352) Navigation unit
Harness
(cont’d)
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SymptomDiagnostic procedure Also check for
23-278Navigation System
Symptom Troubleshooting Index (cont’d)

















PC card will not play/card icon on
audio screen cannot be selected
Symptom Troubleshooting
(see page 23-234)Navigation unit
Navigation display stays on with
ignition switch in LOCK (0) Symptom Troubleshooting
(see page 23-349) Harness/fuses/switches
Aftermarket accessories
connected to the system
DVD read error messages Symptom Troubleshooting (see page 23-346) Navigation unit
The wrong color DVD is installed
Damaged DVD
Navigation system will not go
beyond the disclaimer screen and
displays the OK button See navigation display buttons do
not work or respond properly
The wrong color DVD is installed
Scratched or damaged DVD
Navigation unit
The navigation anti-theft code card
is lost or missing See anti-theft feature (see page
23-266)
The vehicle icon lags behind when
the vehicle turns See self-inertial navigation
limitations (see page 23-266) Aftermarket accessories
connected to the system
GPS antenna/cable
Navigation screen is darker than
normal or takes time to brighten
when it is cold See LCD unit limitations (see page
23-267)
The navigation clock is off by 1 to 3
hours after replacing the navigation
unit See service precautions (see page
23-268)
Perform map matching (see page
23-269)
GPS antenna/cable
Check and adjust the clock
settings
A new navigation DVD is needed See obtaining a navigation DVD (see page 23-269)
Time is not correct Reset Time Adjustment in set-up The wrong colored DVD or version is installed
The DVD is scratched or dirty See DVD Handling and Cleaning (see page 23-270)Navigation unit
The wrong DVD was installed and
now the system does not function
properly See Precaution client Sneak
Previews (see page 23-272)
Install the correct version DVD
Check any official Honda service
website for more service
information about the navigation
system.
A specific city cannot be found See How to answer client questions about navigation coverage
(see page 23-272) The DVD is scratched or dirty
Refer to Database limitation in the
navigation system manual to
report database errors
The Honda Globe Screen (not the
Acura Globe Screen) appears every
time the vehicle is started Symptom troubleshooting
(see page 23-354)
Also see the symptom The wrong
DVD was installed and now the
system does not function properly
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(#'#
)
Overview
23-279
System Description
The navigation system is a highly sophisticated, hybrid locating system.
The navigation unit uses global positioning system (GPS) satellite signals, internal yaw and vehicle speed inputs, and
a map database to show where the vehicle is and to help guide you to a desired destination.
The navigation unit’s GPS receiver receives signals from the GPS, a network of 24 satellites in orbit ar ound the earth.
By receiving signals from several of these satellites, the navigation system can determine the latitude, l ongitude, and
elevation of the vehicle.
Signals from the system’s yaw rate sensor (inside the navigation unit) detects turns, and the ECM/PCM vehicle speed
pulse (VSP) and reverse signal enable the system to keep track of the vehicle’s speed and direction of travel. The
advantage of this hybrid system is that the system can track your position if either the GPS signal or the vehicle speed
signal is missing. For instance, when in a tunnel (no GPS), the speed signal is used to update your position on the map.
Alternately, while the vehicle is being transported on a ferry, GPS signals can show the vehicle position on the map as
it crosses the water.
The navigation system uses the location, direction, and speed information to display the appropriate map and
calculate a route to the destination entered. As you drive to a destination, the system provides both visual and audio
guidance. Audio guidance is sent to the audio unit, and an RGB graphics color signal is sent to the navigation display.
This navigation system also has voice recognition that allows voice control of most of the navigation, and audio
functions. The voice control switches (navigation TALK and navigation BACK buttons on the steering wheel) activate
the voice control system. The microphone on the ce iling receives your voice commands. For more information on this
feature, consult the navigation owner’s guide.
The illumination signal is used by the navigation unit to automatically switch the display mode between the Night and
Day display modes. When the headlights are on, the dash brightness control setting full brightness overrides the Night
display mode, and allows a daytime navigation display with the lights on.
When the navigation system is giving voice guidance commands, the front speakers are muted. When the voice
control system is being used (navigation TALK button pressed), all of the speakers are muted.
The internal GA-Net II bus passes information back and forth between the navigation display, the navigation unit, and
the audio system components. The information passed on this bus are touch button commands, audio muting signal,
audio (radio and XM), and any open in these bus lines can affect the navigation system or other audio accessory
operation.
The clock on the navigation display is set and maintained by the navigation unit. The time is automatically adjusted for
daylight savings, and time zone changes while driving. The time can be adjusted in setup.
Additional information is available about the navigation components following the System Diagram. A glossary of
terms that are used throughout this section follows the detailed information.
The Navigation System Manual in the glove box covers all of the system functions and settings. Use this as a resource
when evaluating a customer concern.
The Comm.Bus connects the HFL and the navigation unit.
If a POI phone number is available, the navigation unit sends the phone number (on the calcurate route to screen) to
the HandsFreeLink control unit for dialing.
(cont’d)
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Î
23-280Navigation System
System Description (cont’d)
Reverse signal
GPS antenna
AM/FM antenna Speakers
Navigation unit
Navi DVD
Navigation/Audio Display Screen
CLOCK
(Set by GPS)Color
signal
XM antenna
(satellite &
terrestrial)
Auxiliary jack
assembly
Audio remote
switches
(steering wheel)
Illumination
Signal
(lighted buttons)
AM/FM
receiverCD Player
(CD, MP3, WMA)
Audio
processor
PC Card Slot (for playing audio
MP3, and WMA audio files) Navi
processor
(ECU)
GPS
receiver
Yaw rate sensor
(senses turning)
DVD player
(navi maps)
GA-net
Audio
Section
Navigaion
Section
Illumination
(Night/Day
display mode)
ECM/PCM
(vehicle speed pulses) Voice control switch
USB Adapter unit
XM Receiver HandsFreeLink
control unitMicrophone
HFL TALK/BACK
buttons
Navigation
TALK/BACK
buttons
Stereo Amplifier
(Type S model)
Climate
control unit
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Î
Î
Navigation Function
Function Diagram
Vehicle Speed Pulse
23-281
STEERING BUTTONSHANDSFREELINK
CONTROL UNIT
AUDIO UNIT
LCD
SWITCH
Destination
DVD-ROM
YAW RATE SENSOR GPS tuning
GPS RECEIVER
NAVIGATION UNIT
GPS ANTENNA Reception of radio
wave from satellite
Data pcocess
concerning map
and vehivle position
Perception of
vehicle position
ECM/PCM
(VEHICLE SPEED PULSE)
Detection of
travel distansce Detection of
vehicle position
Detection of
direction change
Correction of
map matching
Map scroll
Change of reduced
scale of map Guide
processing Audio
guidance
NAVIGATION
DISPLAY
VOICE
PROMPTS
GA-Net bus
USB ADAPTER UNIT
XM RECEIVER MICROPHONE
Sensor power
NAVIGATION UNIT
ECM/PCM DISTANCE
DETECTION
CIRCUIT
The navigation system is composed of the navigation unit, the ECM/PCM (vehicle speed signal), the GPS antenna,
microphone, voice control switch, XM receiver, and the climate control unit.
These units communicate with each other on the GA-Net bus.
The vehicle speed pulse is sent by the ECM/PCM. The ECM/PCM receives a signal from the output shaft (countershaft)
speed sensor, then it processes the signal and transmits it to the speedometer and other systems.
(cont’d)
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ÎGA-Net Bus Configuration
Muting Signal Logic
23-282Navigation System
System Description (cont’d)
Navigation unit
Accessory
(CD changer etc.)
XM receiver
USB Adapter
The GA-Net bus passes audio and navigation commands throughout the navigation and audio components.
These commands include audio/XM selections by voice, and XM station and music title names. Because the entire bus
is daisy chained between components (see diagram below), any open or short in the GA-Net bus harness will cause
any or all of these functions to become inoperative. The addition of any factory audio accessory must maintain the
continuity of the GA-Net bus by installing the Y cable included with the accessory kit.
The audio muting logic is orchestrated by the navigation unit. The navigation unit determines what audio source has
priority to use the speakers.
The priority of the audio sources is as follows:
HandsFreeLink has the highest priority, followed by, navigation, and finally the radio/CD player. The priority is passed
by HandsFreeLink to the navigation unit by dedicated mute wires. The navigation mute signal is passed to the stereo
amplifier.
The navigation unit temporarily disables the voice control buttons, but allows guidance to be heard. In addition, the
navigation unit suppresses the output from the XM receiver, disc pl ayer, or other audio accessories.
When the navigation system sends out a voice route guidance command, the rear speakers are muted, and the
navigation voice is heard in the front speakers.
When the navigation voice control system and HandsFreeLink is use, the rear speakers are muted, and the navigation
voice prompts are heard from the front speakers.
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ÎYaw Rate Sensor
Sensor Element Structure
Oscillation Gyro Principles
Operation
23-283
Enlarged view of sensor element
DETECTING PIEZOELECTRIC
PARTS
OSCILLATORS
SUPPORT PIN
DRIVING
PIEZOELECTRIC
PART
METAL BLOCK MONITORING PIEZOELECTRIC
PARTBend
Oscillation
Coriolis forceTurn to
right
Coriolis force
Oscillation
Sensor element top view
The yaw rate sensor (located in the navigation unit) detects the direction change (angular speed) of the vehicle. The
sensor is an oscillation gyro built into the navigation unit.
The sensor element is shaped like a tuning fork, and it consists of the piezoelectric parts, the metal block, and the
support pin. There are four piezoelectric parts: one to drive the osc
illators, one to monitor and maintain the oscillation
at a regular frequency, and two to detect angular velocity. The two osc illators, which have a 90-degree twist in the
center, are connected at the bottom by the metal block and supported by the support pin. A detection piezoelectric part
is attached to the top of each oscillator. The driving piezoelectric part is attached to the bottom of one oscillator, and
the monitoring piezoelectric part is attached to the bottom of the other oscillator.
The piezoelectric parts have electric/mechanical transfer characteristics. They bend vertically when voltage is applied
to both sides of the parts, and voltage is generated between both sides of the piezoelectric parts when they are bent by
an external force. The oscillation gyro functions by utilizing this characteristic of the piezoelectric parts and Coriolis
force. (Coriolis force deflects moving objects as a result of the earth’s rotation.) In the oscillation gyro, this force
moves the sensor element when angular velocity is applied.
1. The driving piezoelectric part oscillates the oscillator by repeatedly bending and returning when an AC voltage of 6 kHz is applied to the part. The monitoring-side oscillator resonates because it is connected to the driving-side
oscillator by the metal block.
2. The monitoring piezoelectric part bends in proportion to the osc illation and outputs voltage (the monitor signal).
The navigation unit control circuit controls the drive signal to stabilize the monitor signal.
3. When the vehicle is stopped, the detecting piezoelectric parts osc illate right and left with the oscillators, but no
signal is output because the parts are not bent (no angular force).
4. When the vehicle turns to the right, the sensor element moves in a circular motion with the right oscillator bending forward and the left oscillator bending rearward. The am ount of forward/rearward bend varies according
to the angular velocity of the vehicle.
5. The detecting piezoelectric parts output voltage (the yaw rate signal) according to the amount of bend. The amount of vehicle direction change is determined by measuring this voltage.
(cont’d)
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ÎGlobal Positioning System (GPS)
Position Detection Image with GPS Satellite
Precision of GPS
GPS ICONCOLOR NUMBER OF
SATELLITES CONDITION DESCRIPTION
GPS Antenna
GPS Receiver and Clock
23-284 Navigation System
System Description (cont’d)
The global positioning system (GPS) enables the navigation system to determine the current position of the vehicle by
using the signals transmitted from the satellites in orbit around the earth. The sate
llites transmit the satellite
identification signal, orbit information, transmission time signal, and other information. When the GPS receiver
receives a signal from four or more satellites simultaneously, it calculates the current position of the vehicle based on
the distance to each satellite and the satellite’s positions in its respective orbit.
The precision of the GPS varies according to the number of satellites from which signals are received and the view of
the sky. The accuracy is indicated by the color and shape of the GPS icon shown on the display.
No GPS icon None Faulty reception The GPS can’t be utilized due to a faulty GPS receiver, open in the wire, or other
fault or interference.
White GPS icon 2 or less Impossible to detect vehicle positionGPS function is normal. The satellite
signals received by the GPS are too few to
detect the vehicle position.
Green GPS icon 3 Vehicle position detectable in 2 dimensionsThe longitude and latitude of the vehicle
position can be detected. (Less precise
than detection in three dimensions)
4 or more Vehicle position detectable in 3 dimensions (elevation
displayed) The longitude, latitude and the altitude of
the vehicle position can be detected. (More
precise than detection in two dimensions)
The GPS antenna amplifies and transmits the signals received from the satellites to the GPS receiver.
The GPS receiver is built into the navigation unit. It calculates the vehicle position by receiving the signal from the GPS
antenna. The current time vehicle position and signal reception condition is transmitted from the GPS receiver to the
navigation unit to adjust vehicle position.
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