ACURA CSX 2006 Service Repair Manual

Cavity Wire Test conditionTest: Desired result Possible cause if desired result
is not obtained
Cavity Wire Test condition Test: Desired result Possible cause if desired result
is not obtained
22-331
5. With the connector still disconnected, do these input tests at the following connector.
 If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, go to step 6.




1 ORN Under all
conditions Measure the voltage between
immobilizer-keyless control unit
7P connector terminals No. 1
and body ground:
There should be battery voltage. Blown No. 23 (10 A) fuse in
the under-hood fuse/relay
box
An open in the wire
2 YEL Ignition switch ON (II) Measure the voltage to ground:
There should be battery voltage. Blown No. 2 (15 A) fuse in the
under-dash fuse/relay box
An open in the wire
6. Reconnect the connector to the immob ilizer-keyless control unit, and do these input tests at the following
connector.
 If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, the immobilizer-keyless control unit must be faulty; replace it.





7 BLK Under all
conditions Measure the voltage to ground:
There should be less than 0.5 V. Poor ground (G101)
An open in the wire
6 PNK Ignition key inserted into the
ignition switch Measure the voltage to ground:
There should be less than 1 V.
Poor ground (G504)
Faulty ignition key switch
An open in the wire
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22-332Immobilizer System
Immobilizer-keyless Control Unit Replacement
A
B
1. Remove the driver’s dashboard lower cover
(see page 20-102).
2. Remove the steering column covers (see page 17-9).
3. Disconnect the 7P connector (A) from the immobilizer-keyless control unit (B).
4. Remove the two screws and the immobilizer- keyless control unit.
5. Install the immobilizer-keyless control unit in the reverse order of removal.
6. After replacement, register the immobilizer-keyless control unit (see page 22-329), and make sure the
immobilizer system works properly.
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23-3
Audio System
Component Location Index
RIGHT TWEETER
AUDIO UNIT (6 CD type)
(’06-07 premium models
without navigation)
LEFT TWEETER
AUDIO REMOTE SWITCH
LEFT REAR SPEAKER
FRONT PASSENGER’S
DOOR SPEAKER
AM/FM ANTENNA SUBLEAD
DRIVER’S DOOR SPEAKER
AM/FM ANTENNA LEAD
AM/FM ANTENNA AMPLIFIER
RIGHT REAR SPEAKER AM/FM ANTENNA
NAVIGATION UNIT
(with navigation)
SUBWOOFER (Type S model) STEREO AMPLIFIER (Type S model)AUDIO UNIT (1 CD type)
(’06-07 Touring models and
’08 model without navigation)
AUXILIARY JACK ASSEMBLY
(’07-08 models)
XM RECEIVER (’08 model with navigation) XM ANTENNA LEAD
(’08 model with navigation)
XM ANTENNA
(’08 model with navigation)
Replacement, page 23-84
Connector Inputs and Outputs,
page 23-11
Removal/Installation, page 23-80
Replacement, page 23-84
Test, page 23-86
Replacement, page 23-86
Replacement, page 23-84
Replacement, page 23-83
Replacement, page 23-83
Replacement, page 23-87
Replacement, page 23-84 Repair, page 23-87
Connector Inputs and Outputs,page 23-11
Removal/Installation,
page 23-155
Replacement, page 23-85 Connector Inputs and Outputs, page 23-15
Removal/Installation, page 23-83Connector Inputs and Outputs,
page 23-11
Removal/Installation, page 23-81
Connector Inputs and Outputs, page 23-19
Replacement, page 23-85
Connector Inputs and Outputs, page 23-17
Removal/Installation, page 23-82 Replacement, page 23-88
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Symptom Diagnostic procedure Also check for
23-4
Audio System
Symptom Troubleshooting Index
Poor AM or FM radio reception or
interference (with navigation)
Symptom Troubleshooting (see page 23-29) AM/FM antenna lead and/or
sublead short or open in the
wire
Poor AM or FM radio reception or
interference (without navigation) Symptom Troubleshooting (see page 23-32) AM/FM antenna lead and/or
sublead short or open in the
wire
Audio unit power switch will not
turn on (No information display
and no sound) (with navigation) Symptom Troubleshooting (see page 23-35)
Audio unit power switch will not
turn on (No information display
and no sound) (without
navigation) Symptom Troubleshooting (see page 23-36)
Audio unit power switch will not
turn off (with navigation) Symptom Troubleshooting (see page 23-38)
Audio unit power switch will not
turn off (without navigation) Symptom Troubleshooting (see page 23-39)
No sound is heard from the
speaker(s) (display is normal)
(with navigation) Symptom Troubleshooting (see page 23-39)
No sound is heard from the
speaker(s) (display is normal)
(without navigation) Symptom Troubleshooting (see page 23-48)
Auxiliary i nput sound is low or
cannot be heard Symptom Troubleshooting (see page 23-50)
Audio system sound is weak or
distorted (display is normal) Symptom Troubleshooting (see page 23-53)
Radio preset memory is lost Symptom Troubleshooting (see page 23-54) Internal error
Volume does not change Symptom Troubleshooting (see page 23-54)
Volume does not increase with
speed (with navigation) Symptom Troubleshooting (see page 23-55)
Volume does not increase with
speed (without navigation) Symptom Troubleshooting (see page 23-56)
Volume is too high or too low
when driving at freeway speeds Symptom Troubleshooting (see page 23-57)
Radio tuner does not change
stations Symptom Troubleshooting (see page 23-57)
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SymptomDiagnostic procedure Also check for
23-5
Navigation unit button
illumination does not work (with
navigation)Symptom Troubleshooting (see page 23-58)
Audio unit button illumination
does not work (without
navigation) Symptom Troubleshooting (see page 23-59)
Display does not dim or brighten
with dimmer (without navigation) Symptom Troubleshooting (see page 23-60)
Audio disc does not load Symptom Troubleshooting (see page 23-61)
Audio disc does not eject Symptom Troubleshooting (see page 23-61)
Audio disc does not play Symptom Troubleshooting (see page 23-62)
Audio disc skips Symptom Troubleshooting (see page 23-62)
Audio remote switch does not
work properly (with navigation) Symptom Troubleshooting (see page 23-63)
Audio remote switch does not
work properly (without
navigation) Symptom Troubleshooting (see page 23-65)
Audio disc cannot be inserted
and/or ejected (with navigation) Symptom Troubleshooting (see page 23-66)
Display can be opened and/or
closed even when an audio disc is
being inserted or ejected Replace the navigation unit (see page
23-155)
PC card will not play/card icon on
audio screen cannot be selected
(with navigation) Symptom Troubleshooting (see page 23-67)
Error code: XM NO SIGNAL or XM
ANTENNA is displayed (with
navigation) Symptom Troubleshooting (see page 23-68)
XM radio display is blank and no
station information is displayed
(with navigation) Symptom Troubleshooting (see page 23-68)
XM radio preset memory is lost
(with navigation) Symptom Troubleshooting (see page 23-71)
Poor or no sound with XM radio
(Audio unit does display XM
channels) (with navigation) Symptom Troubleshooting (see page 23-72)
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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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µ
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 GlossaryItem Definition
23-9
GA-Net The GA-Net allows the audio unit to communicate with all the audio and
navigation components in a vehicle. If there is an open in the GA-Net or
components, components or the entire audio and navigation system may
appear inoperative.
GB (Gigabyte) A unit of memory or disk storage equal to billion bytes (1000 million bytes).
HDD Abbreviation for hard disc drive. They are sensitive to heat and it is not
recommended that they be used in the PC card slot for playing audio files.
Hertz (Hz) The unit of frequency equal to one cycle per second (cps). One kilohertz (kHz)
equals 1,000 cps; one megahertz (MHz) equals 1 million cps.
Integrated amplifier A component that combines a pre amp and a power amp into a single unit. A
receiver combines an integrated amp and a tuner into a single unit.
Jewel case The hard plastic case that contains a compact disc or DVD. Always use a jewel
case to prevent scratches on the underside of a CD or DVD.
LCD (Liquid Crystal Display) A type of digital display that changes reflectance or transmittance when an electrical field is applied to it.
Memory Circuitry or devices that hold information in electrical or magnetic form, such
as the AM/FM radio presets.
MB (Megabyte) One million bytes. Written as 1 MB. Megabytes are used as a measure of digital
storage space. For example, a CD can hold 650 MB.
Mic An abbreviation for microphone. For vehicles with navigation, the microphone
accepts navigation voice commands to control audio and navigation functions.
MP3 music files MP3 is an audio coding format. MP3 is a popular audio compression format on
the Internet and computers. CDs and PC Cards with these files can be played on
some vehicle’s audio system.
Mute When the navigation gives guidance, the front speakers are muted (no music).
When you use the voice control system, all of the speakers are muted.
Noise Unwanted random sounds like buzzing, hiss, pops, static, whine, etc.
PC card The slot used for playing MP3 and WMA music files. The PC Card is usually a
combination of a small flash card in a PCMCIA adaptor that slides into the slot.
The ATA, SD, and compact flash types of cards have been tested up to 1 GB.
PCMCIA A computer standard for the slot that the PC card slides into. Another term for
the PC card slot.
Processor The part of an audio device that performs tasks/calculations. In the audio unit
the processor handles muting to allow the navi to speak its voice commands,
and the decoding/playback of the sound files etc.
Radio A head unit that combines a tuner, a preamplifier, and often a power-amplifier.
Route guidance (RG) Spoken voice used for turn-by-turn navigation from the audio speakers.
SCF (Cold Start Fix) screens These screens are displayed if the system requires a GPS initialization. The vehicle should be moved outside into an open area away from buildings/power
lines.
Stereo A recording of at least two channels where you can hear sound or music from
the left or right side.
SD (Secure Digital) card This compact type of memory card allows for fast data transfer and has built-in security functions. SD cards have a small write-protection switch on the side.
Shield A metallic foil or braided wire layer surr ounding conductors which are
designed to prevent electrostatic or electromagnetic interference (noise) from
external sources such as buzzing, or popping sounds heard on the speakers.
Speaker (Loudspeaker) A device that converts electrical energy into acoustical energy (sound).
Speed-sensitive volume
compensation (SVC) The SVC increases the audio volume to compensate for increased interior noise
when the vehicle drivers at freeway speeds.
Subwoofer A loudspeaker made to reproduce the lowest audio frequencies, about 25 Hz to
125 Hz.
(cont’d)
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Audio GlossaryItem Definition
23-10Audio System
System Description (cont’d)
Track
A sound recording on a CD, tape, or PC Card.
Treble An adjustment to control the volume of the high frequency sounds.
Tuner A component (or part of a component) that receives radio signals and selects
one broadcast from many.
Tweeter A speaker designed to reproduce the higher frequencies (treble) only.
USB Universal Serial Bus. The USB is used for playing the compressed audio files
(MP3, WMA, and AAC) on an external device through the audio unit.
Voice coil A coil of wire wrapped around a tube and then attached to the speaker cone or
diaphragm. When an audio signal is applied, the coil becomes an
electromagnet and interacts with the permanent magnet causing the come or
diaphragm to vibrate. We interpret this vibrations as sound.
Volume control Allows you to control the loudness of the music.
WMA music file Windows Media Audio File. This is an accepted format for music files to be
played on either a CD-R, a CD-RW or a PC Card.
Woofer A speaker that is designed to reproduce low (bass) frequencies only.
XM radio Satellite based radio transmission, which also uses a ground based repeater
network to ensure seamless reception. The channels originate from XM’s
broadcast center, in Washington, DC, and uplink to two satellites. These
satellites transmit the signal across the entire continental United States.
XM receiver The external component that receives and processes the XM signals from the
XM satellites, and terrestrial (land) stations. The audio unit communicates to
the XM receiver over the GA-Net bus.
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