steering wheel ACURA CSX 2006 Service Manual PDF

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Overview
Speed-sensitive volume compensation (SVC)Contents Audio output
Left front CH Right front CH Right rear CH Left rear CH
23-6 Audio System
System Description
The audio unit acts as the processor for all audio functions. Select audio functions from the audio unit, the audio
remote (on the steering wheel), or by using the navigation voice control system. The audio display provides the
current audio status. For vehicles with navigation, additional audio information is available by touching the audio
button on the navigation audio screen (See the owner’s manual and the navigation system manual for more details.).
The XM receiver passes its signal to the audio unit. In addition, it communicates with the audio unit via the GA-Net bus.
Any open connections in the GA-Net bus circuit causes audio and navigation functions to appear inoperative.
For vehicles with navigation, pressing the open/close switch on the navigation display panel allows access to the CD
slot and PC card.
A security signal is daisy-chained between the audio and vehicle components for integration into the vehicle’s security
system.
Some audio systems are equipped with speed-sensitive volume compensation (SVC). The navigation or audio unit
receives the vehicle speed pulse (VSP) from the ECM/PCM. The system processes the speed input and increases the
navigation or audio system volume level as the vehicle speed increases to compensate for the various interior noises
that occur at higher speeds. When the vehicle slows down, the volume returns to its normal level. The SVC has four
settings: SVC OFF, LOW, MID and HIGH that can be adjusted using the navigation or audio unit. The SVC comes from
the factory with the MID setting as the default.
To change the audio unit SVC setting, press the tune folder sound knob repeatedly until the SVC is displayed, rotate
the knob to adjust the SVC to the desired setting (SVC OFF, LOW, MID, or HIGH).
To change the navigation unit SVC setting, press the AUDIO button, and then select the SOUND icon on the navigation
display. Press the navigation display to select the desired setting (OFF, LOW, MID, HI).
The navigation system allows voice control for the audio, XM, PC card, and CD player. The GA-Net (audio unit)
communicates the voice control commands. When using the navigation TALK/BACK button, the audio is muted on all
speakers and you hear navigation sound on the front channels. When using the navigation or route guidance (RG), the
front speakers provides the navigation sound and the rear speakers continue to play. For more information, see the
navigation section. The outline of the interruption function is shown in this table.
Navigation
TALK/BACK Buttons Navigation voice
output Navigation voice
output Muted Muted
Route guidance Navigation voice outputNavigation voice
output Audio Audio
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GA-Net Bus Configuration
System Diagram (With navigation)
23-7
Reverse signalGPS antenna
AM/FM antenna Speakers
Navigation unit
Navi DVD
Navigation/Audio Display Screen
CLOCK
(Set by GPS)
Stereo Amplifier
(Premium sound
system)
Color
signal
Accessory
(MusicLink,
CD changer, etc.)
XM Receiver
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
Audio
Section
Navigaion
Section
Illumination
(Night/Day
display mode)
ECM/PCM
(vehicle speed pulses) Microphone
(on ceiling) TALK/BACK
voice buttons
(’08 model) Climate control unit
The GA-Net bus passes audio and navigation commands throughout the navigation and audio components.
These commands include navigation touch screen and hard button signals, audio/XM selections by voice, and XM
station and music title names. Because the entire bus is daisy chained between components (see diagram), 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
audio accessory must maintain the continuity of the GA-Net bus by installing the Y cable included with the accessory
kit.
(cont’d)
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Audio Glossary
Item Definition
23-8Audio System
System Description (cont’d)
NOTE: All items may not apply to this vehicle. See the owner’s manual for more information.
Active noise cancellation The active noise cancellation system cancels some of the vehicle noise. This occurs in the 1,500 2,400 rpm range. Microphones detect the low frequency
sound, and the system outputs a canceling sound from the audio speaker.
AM (Amplitude Modulation)
Amplifier A device that increases the level of a signal by increasing the current or voltage.
Antenna A device used to send or receive electromagnetic waves thr ough the air.
ATA (PC Card) A type of card that has been tested for use in playing WMA, and MP3 music files in the PC Card slot. Sizes of up to 1 GB have been tested.
Audio remote switch The switches on the steering wheel that control the audio system.
Auxiliary jack Allows the customer to use a portable audio device to i nput audio recordings.
Balance A control that changes the relative volume of the left and right channels.
Band A range of frequencies between two definite limits. Bands are assigned by the Federal Communications Commission for specific uses.
Bass An adjustment for the low frequency sounds of around 160 Hz and below.
Byte A unit of storage for computer files and memory. A CD holds approximately 700 million bytes.
Cassette Audio or video magnetic tape container having two reels. Customers can insert it for play back
Compactflash Astandardforsmall-size(3x4cm),memorycardsusedinmobilecomputers, PDAs, digital cameras. Compact flash memory cards are available in size of
32 MB up to 4 GB or more and can be played in the audio PC slot. Sizes above
1 GB have not been tested.
CD (Compact Disc) A 4.5-inch plastic disc containing digital audio recording that is played optically on a laser equipped player. Never use discs with a paper label. In a hot vehicle,
labels can curl up and jam the unit.
CD (audio disc) changer CD player that can store and play more than one CD. Two types are available. Some units accept CDs fed into the changer one at a time, and others accept a
magazine (with CDs stacked in a container).
CD player A com ponent designed to play compact disc recordings using a laser optical
pickup. The signal from a CD player usually requires amplification.
Decibels (db)
Distortion Inexact repr oduction of an audio signal caused by playing music at levels the
audio system cannot handle.
Dolby (noise reduction) A processing system developed by Dolby Laboratories that reduces the background noise on recording media. The result is a cleaner playback from the
audio system.
DUET A serial data communication line used for sub display.
DVD (Digital Versatile Disc) A 4.5-inch CD-like format used for storing movies with digital audio and video features. The DVD-A format is a DVD format designed for DVD audio systems.
Some vehicles can play DVD and DVD-A formats.
Equalizer A device that changes the relative volume of individual frequency bands to suit personal tastes of the listener.
Fader The control that adjusts the relative volume levels of front and rear speakers in a four-speaker system.
Format To prepare a PC Card to receive files this function is done on a PC. Always choose either FAT or FAT32, as the NTFS format is not accepted by the system.
Pick the default sectors for the format method selected.
FM (Frequency Modulation) The form of modulation used for radio and television sound transmission in most of the world. Less prone to interference than AM. The FM broadcast band
in North America covers roughly 87.7 to 107.9 MHz.
The type of transmission used in the standard radio broadcast band from 530 to 1710 kHz.
A method of measuring sound or radio signal strength received by the audio unit antenna.
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Audio unit power switch will not turn off
(without navigation) No sound is heard from the speaker(s)
(display is normal) (with navigation)
YES
NO
YES
NO YES
NO
YES
NO
YES
NO
23-3923-39
AUDIO UNIT CONNECTOR A (17P)
ACC RADIO (PUR)
NOTE: Check for aftermarket accessories plugged into the vehicle’s accessory power sockets.
 Check the connectors for poor connections or loose terminals.
1. Turn the ignition switch to ON (II).
2. Push the power switch OFF or turn the ignition switch to LOCK(0) to see if the audio unit turns OFF.
Operation is normal.
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Remove the audio unit (see page 23-80).
5. Disconnect audio unit connector A (17P). NOTE: Eject all the discs before removing the audio
unit to prevent damaging the CD player’s load
mechanism.
6. Measure the voltage between audio unit connector A (17P) terminal No. 14 and body ground.
Check for short to power on PUR wire.
Replace the audio unit (see page 23-80). NOTE:
 Check the vehicle battery condition first.
 Check the connectors for poor connections or loose terminals.
 Set the fader and balance positions to the center.
 Before performing symptom troubleshooting, do the power switch will not turn ON troubleshooting
(see page 23-35).
1. Turn the ignition switch to ON (II).
2. Check for sound in each mode (AM, FM, XM, and CD).
Intermittent failure. The system is OK at this
time. Check for loose connections at the navigation
unit and speaker(s).
Go to step 3.
3. Check that the volume button is not set to the min level.
Raise the volume level, and recheck the
function.
Go to step 4.
4. On the steering wheel, check the navigation talk command.
Cancel the navigation talk command by
pressing the navigation BACK button, then recheck
the function.
Go to step 5.
(cont’d)
Wire side of female terminals
Is the aud io unit OF F ?
Is there voltage? I s t he sound OK i n each mod e?
Is it at the MIN level?I s t he nav i gat i on t al k command f unct i on set ?
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 )Position Resistance
23-8623-86
Audio System
Audio Remote Switch Test
Audio Remote Switch Replacement
A
B
1. Remove the driver’s airbag assembly (see page
24-188).
2. Remove the 20P connector (A) from the cable reel (B).
3. Measure the resistance between terminals No. 9 andNo.10ineachswitchpositionaccordingtothe
table.
No buttonpressed About 10 k
MODE About 3.7 k
CH ( ) About 1.7 k
CH ( ) About 775
(VOL.UP) About 357
(VOL.DOWN) About 100
4. If the resistance is not as specified, replace the audio remote switch (see page 23-86). 1. Remove the steering wheel (see page 17-6).
2. Remove the audio remote switch (see page 17-7).
3. Install the audio remote switch in the reverse order
of removal.
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Overview
23-101
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 client concern.
(cont’d)
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23-102Navigation 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)
Stereo Amplifier
(Premium sound
system)
Color
signal
Accessory
(MusicLink,
CD changer, etc.)
XM Receiver
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
Audio
Section
Navigaion
Section
Illumination
(Night/Day
display mode)
ECM/PCM
(vehicle speed pulses) Microphone
(on ceiling) TALK/BACK
voice buttons
(’08 model) Climate control unit
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Navigation Unit Inputs and Outputs for Connector D (5P)
Navigation Unit Connector D (5P) TerminalNumber Wire Color Terminal Name Description Voltage (about) Symptom
23-115
1 BRN MIC GND Ground for
microphone signal0 V If open: No microphone signal shown in
diagnostics: Navi System Link and Functional Set
up Mic Level.
If short to ground: No effect on voice recognition.
2 YEL MIC SIG Microphone output signal positive45V(with
navigation TALK
button pressed)If open: No microphone signal shown in diagnostic
screens: Navi System Link and Functional Setup
Mic Level.
If short to ground: No microphone signal shown in
diagnostic screens: Navi System Link and
Functional Setup Mic Level.
3 GRY MIC SH Shield for terminal No.1,2,50 V If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.
4 GRN NAVI GUIDE Steering wheel switch output45V
(navigation TALK
button pressed)
2.5 3 V
(navigation
BACK button
pressed)If open: Steering wheel navigation TALK, and
navigation BACK buttons do not work.
If short to ground: Steering wheel navigation TALK,
and navigation BACK buttons do not work.
5 ORN MIC ADPT Control signal for microphone0 V If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.
: The shielded wires have a heat-shrunk tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire listed on the schematic.
(cont’d)
Wire side of female terminals
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Navi System Link
23-136Navigation System
System Diagnostic Mode (cont’d)
Navi System Link
Navi.ECUReturn
Exit Diag
Detecting..
GPS Ant.
Display Radio BACK
Air-Con
 This diagnostic step tests the cables connecting the
navigation components. Ensure that the ignition
switch is in the ON (II) position. When the diagnosis
begins, you hear a bong sound. The system is in a
Detecting mode, and is waiting for all the items in
white to be tested. This includes the voice control
switch (navigation TALK/BACK buttons), and the
microphone. Press the navigation TALK button on the
steering wheel, and in a normal voice, say ‘‘testing’’.
The Talk indicator on the screen should turn green,
and the voice level indicator should move to at least
the 6th bar to pass. Next, press the navigation BACK
button. The Cancel indicator should turn green.
 If all of the communication lines connecting the system components, and the navigation TALK/BACK
buttons/microphone check out OK (all block diagram
items green), then the OK indicator turns green.
 If there is a problem with the system, the faulty system component item turns red, and the screen
shows NG in red. Use the troubleshooting index, and
other diagnostic screens to help locate the problem.
 The indicator on the screen may not change until you cycle the ignition switch. After repairing the affected
cable or system, repeat this diagnostic.
NOTE: Green boxes and green OK indicate that the
communications lines (cables) are intact. This
diagnostic does not necessarily imply that the
individual components are functioning properly. For
instance, the GPS antenna wire may be crushed, but
still show as green. A road test, or other diagnostic
maybenecessarytofindtheproblem.  Select Return to return to the Diagnostic Menu, or the
Exit Diag button to exit.
NOTE: The Mic Level indicator must reach the 6th bar
or greater to pass the test.
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GPS Send Time
Demo Mode
Mic Level
23-148Navigation System
System Diagnostic Mode (cont’d)
Send GPS TimeReturn
GPS Time
Second
Year
Day Hour
Minute
xxxx.xx.xx xx:xx:xx
Set
xxxx
xx
Month xx
xx
xx
xx
Demo Mode
OFF
Demo
Speed Rate 150 ms ON OFFReturn
Return
Steering Switch Mic Level
Mic Level
BACK
This screen is for factory use only. It allows adjustment
of the GPS time. This display updates in real time.
 GPS Time is the time as received from the GPS satellites. It is in Greenwich Mean Time (GMT).
 Date, Hour, Minute, and Set should not be used.
This screen allows the navigation system to drive a
route, when the vehicle is stationary. Typical
applications include auto shows, and other events.
This feature allows a visitor to enter a destination, and
see the system drive to the destination. No speed signal
is needed.  To initiate the mode, select ON.
 Changing the speed rate in ms (millisec onds) is
optional, and represents the time between updates of
the VP (vehicle position) movement.
– When you increase the rate, the VP slows down because it is updated (moved) at a slower rate.
– When you decrease the rate, VP is faster because it is updated (moved) more frequently.
– 1500 ms is VP at its slowest in demo mode.
– 150 ms is VP at its fastest in demo mode (Default).
 At key off, the setting automatically returns to the default of Off. This diagnostic screen allows you to independently test
the microphone and the navigation TALK and BACK
buttons. They are used to activate the voice control
system. The microphone is located near the map light
in the ceiling. It is directional, and works best if the
voice is coming from the drivers seat.
 Press the navigation TALK button on the steering wheel, wait unit you hear a beep, and in a normal
voice say ‘‘testing’’. The TALK indicator on the screen
should momentarily turn green, and the text ‘‘Now
Recording...’’ should appear in yellow. If the talk
indicator on the screen does not briefly turn green,
then check the wiring from the navigation TALK
button to the navigation unit.
 If there is no Mic Level movement when you speak, then you should check the wire running from the
microphone to the navigation unit.
 If the mic level bar is full or almost full wit hout you
speaking or other back ground noise, replace the
microphone and recheck.
 PressthenavigationBACKbuttononthesteering wheel. The Cancel indicator on the screen should
momentarily turn green. If it does not briefly turn
green, then check the wiring from the steering wheel
navigation BACK button to the navigation unit.
NOTE: The mic level should reach the 6th bar.
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