2006 ACURA CSX USB
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23-25823-258 Audio System
XM Receiver Removal/Installation USB Adapter Unit Replacement
A
A
B
B
A
A
1. Open the trunk lid and remove the right trunk side
trim panel (see page 20-80).
2. Disconnect connectors (A) from the XM receiver (B).
3. Loosen the three bolts, and remove the XM receiver.
4. Install the XM receiver in the reverse order of removal. 1. Remove the front passenger’s seat (see page
20-118) and pull back the carpet.
2. Disconnect the connectors (A) from the USB adapter unit (B).
3. Remove the bolts and the USB adapter unit.
4. Install the USB adapter unit in the reverse order of removal.
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Page 2544 of 2893
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23-25823-258 Audio System
XM Receiver Removal/Installation USB Adapter Unit Replacement
A
A
B
B
A
A
1. Open the trunk lid and remove the right trunk side
trim panel (see page 20-80).
2. Disconnect connectors (A) from the XM receiver (B).
3. Loosen the three bolts, and remove the XM receiver.
4. Install the XM receiver in the reverse order of removal. 1. Remove the front passenger’s seat (see page
20-118) and pull back the carpet.
2. Disconnect the connectors (A) from the USB adapter unit (B).
3. Remove the bolts and the USB adapter unit.
4. Install the USB adapter unit in the reverse order of removal.
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Page 2548 of 2893
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) Position Resistance
23-26223-262Audio System
USB Adapter Replacement
Audio Remote Switch Test
B
C
D
A
A
B
1. Remove the center console (see page 20-92).
2. Detach the USB adapter cable (A) from the clip.
Remove the cover (B) and disconnect the USB
adapter cable connector (C).
3. Carefully pull out the USB adapter holder (D) from the center console box.
4. Install the USB adapter in the reverse order of removal. SRS components are located in this area. Review the
SRS component location (see page 24-11).
Also review the precautions and procedures (see page
24-13) in the SRS section before doing repairs or
service.
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 23-263).
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Page 2566 of 2893
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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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Page 2567 of 2893
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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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Page 2568 of 2893
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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Page 2574 of 2893
ItemDefinition
23-288Navigation System
System Description (cont’d)
LCD
Liquid Crystal Display (the navigation screen)
Map matching The received GPS information allows the navigation system to position the vehicle on the map. MAP
matching has occurred if the map screen displays the current street name in the bottom-shaded area.
Mic Abbreviation for the microphone used for receiving voice commands. It is located near the map light in the
ceiling. The ANC circuit may also use it to check its tuning.
MID Multi-Information Display
MW Maneuver Window. While on route to a destination, this window displays information about the next
maneuver.
Navi Abbreviation for the Navigation System.
Off-road tracking See bread-crumbs.
Off route This occurs when the user leaves mapped roads. Off road tracking dots (bread-crumbs) are displayed If the
option is enables in the setup menu. The user can use them to return to a mapped road. The bottom of the
navigation screen displays not on a digitized road.
Outlying areas These are rural areas that typically have only their main roads mapped. All other roads are shown in light
brown for reference only, since the have not been verified.
Paired Linking your call phone to the HFL.
PC Card Slot The PC Card (PCMCIA, type II) slot is for factory use only. Make sure that the sliding door is closed at all
times, if opened, an error message is displayed on the screen.
PCM Powertrain Control Module. This unit supplies the navigation system speed signal, also refered to as PCM.
PCMCIA A computer industry defined term referring to the PC Card slot standard.
PIN Personal Identification Number, a random 4 digit number created by the customer to protect personal
information.
POI Point Of Interest. These are the businesses, schools, etc. found under the places option on the main menu.
Polygon Colored areas on the map screen denoting parks, schools, etc. See the Navigation System Manual Driving to
Your Destination for a list of the assigned colors.
QWERTY Keyboard layout resembling the typewriter keys. The keyboard layout can be changed to an alphabetical
layout in the Setup mode.
SCS connector The service check signal 2-pin connector used to put the navigation system into the diagnostic mode.
Security code Code needed to activate the navigation system. You can get the security code from the in by entering the
navigation unit serial number. You can find the serial number on the diagnostic screens (unit check, Navi
ECU), or on the underside of the navigation unit.
Tuning A continual update of internal navigation system scaling factors. See the individual sensor tuning
discussions under either System Description, or System Diagnosis Mode (see page 23-297).
Unverified streets These streets have not been verified for turn restrictions, one-way, etc. They appear light brown on the map.
You can enter address destinations in these areas, but depending on your Unverified. Routing choice in
setup, voice guidance may end at the last verified street closest to your destination.
USB Universal Serial Bus. The USB is used for playing the compressed audio files (MP3, WMA, and AAC) on the
external device through the audio unit.
Verified streets These streets consist of the detailed metropolitan coverage areas, and other inter-town connection roads.
These roads are shown in black or red on the map. (interstates are red)
VP Vehicle Position. When in map mode, this circular icon shows the vehicle position on the map.
VR Voice Recognition. This allows voice control of many of the navigation functions. The hardware consists of
the microphone, voice control switch (navigation TALK/BACK buttons), and the center speaker. See the
overview for more information.
VSP Vehicle Speed Pulse. This pulse signal coming from the PCM (VIA the CSS) is used to update the Vehicle
position on the map. These pulses do not indicate direction (forward or backward). When in reverse, the
navigation receives a signal and directs the VP to move backwards on the map.
XM This device receives information from the XM satellites and passes XM audio information to the audio unit.
In addition, traffic information is sent to the navigation unit.
Yaw sensor This device is located in the navigation system control unit and senses the side-to-side twisting force
generated when the vehicle turns. See a detailed description of how this sensor works in system description.
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Page 2582 of 2893
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23-296Navigation System
Circuit Diagram
A10 A9
BRN10
BRN
3 CABLE REEL
A5 A29
D1 CABLE REEL GRN
RED/BLK
BACKTALK
5
GRY
GPS
H1
H2
VSP BLU
A15
PNK BLU NAVIGATION UNIT
HFL-VOICE CONTROL SWITCH
8
GRN 680
10 k
2.2 k
GPS
ANTENNA
No. 14 (7.5 A) FUSE
(In the under-dash
fuse/relay box) DASH LIGHTS
BRIGHTNESS
CONTROLLER
AUDIO
REMOTE
GND VSP
GPS
XM
RECEIVER A3BRN K-LINE
MICU
A14
PUR
Q14 Q4
GRNA4
A3
LT BLU
Q8 Q1
WHT
WHT
UNDER-DASH FUSE/RELAY BOX A1
A13
A24 C1
C7
WHT B
BACK UP
BACK
LT
B
BACK UP
SCTY
RADIO
ACC
RADIO
G2 RED
GRY
ILL
ILL
RED
ORN ACC HOT in ACC (I)
and ON (II)
ACC
BAT
IGNITION
SWITCH
C2
WHT
BRN
No. 23
(10 A)
UNDER-HOOD FUSE/RELAY BOX
BATTERY
H1
D4 No. 2
(IG)
(50 A)
E15
No. 35
(7.5 A) No.14(7.5A)FUSE
(In the under-dash
fuse/relay box)
DASH LIGHTS
BRIGHTNESS
CONTROLLER
GPS
SH
GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH *:
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.
:GA-NET
:Shielding
28 27
D9
RED
D7 D8
GRN
MIC
GND MIC
SIG MIC
SIG
MIC
GND
MIC
SH MIC MIC
21
GRY BRN YEL
14 13
12
MIC SH MIC MIC
GRY
B10 8
HFL/NAVI
COMM SH
GRY GRY
B24 RED 7
21 20
GRN
B11
B23
BLK HFL/NAVI
COMM1
HFL/NAVI
COMM2
HFL/NAVI
COMM3
B12 WHT 6
HFL/NAVI
COMM4
HFL
SWITCH
A10 A9
BRNE3
E10
PNK BLU E9
USB
ADAPTER
UNIT A3BRN
GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH
PNK BLU
A12
G504
G505 BLK
BLK
GND RADIO
GNDHFL/NAVI
COMM1
HFL/NAVI
COMM2
HFL/NAVI
COMM3
HFL/NAVI
COMM4 HFL/NAVI
COMM SH
NAVI
GUIDE
No. 1 (BAT) (100 A)
ECM/PCM
(VEHICLE
SPEED SIGNAL)
YEL AC
SI
RED AC
SO
CLIMATE
CONTROL
UNIT
BLUAC
CLK
D5
D6
D12
C4 ORN
MOONROOF
SWITCH MIC
ADPTHFL-NAVIGATION
MICROPHONE
3
* *
*
**
*
*
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