Acura RL. Instruction — page 181

Fig. 2: Identifying Audio System Component Location (2 Of 2)
Courtesy of AMERICAN HONDA MOTOR CO., INC.

SYMPTOM TROUBLESHOOTING INDEX

SYMPTOM TROUBLESHOOTING INDEX

Symptom

Diagnostic procedure

Also check for

Poor AM or FM radio
reception or interference

Symptom Troubleshooting (see POOR AM OR
FM RADIO RECEPTION OR
INTERFERENCE
)

AM/FM antenna
lead and/or sublead
short or open in the
wire

Antenna module
unit

Power switch will not turn Symptom Troubleshooting (see POWER

2007 Acura RL

2005-08 ACCESSORIES AND EQUIPMENT Audio System — RL

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© 2005 Mitchell Repair Information Company, LLC.

ON (No information
display and no sound)

SWITCH WILL NOT TURN ON (NO
INFORMATION DISPLAY AND NO
SOUND)
)

Radio stays powered with
the ignition switch OFF

Symptom Troubleshooting (see RADIO
STAYS POWERED WITH THE IGNITION
SWITCH OFF
)

No sound is heard from
speaker(s) (display is
normal)

Symptom Troubleshooting (see NO SOUND IS
HEARD FROM SPEAKER(S) (DISPLAY IS
NORMAL)
)

Poor or no sound with XM
radio (Audio unit does
display XM channels)

Symptom Troubleshooting (see POOR OR NO
SOUND WITH XM RADIO (AUDIO UNIT
DOES DISPLAY XM CHANNELS)
)

XM radio display is blank
and no station information
is displayed (with
AcuraLink)

Symptom Troubleshooting (see XM RADIO
DISPLAY IS BLANK AND NO STATION
INFORMATION IS DISPLAYED (WITH
ACURALINK)
)

XM radio display is blank
and no station information
is displayed (without
AcuraLink)

Symptom Troubleshooting (see XM RADIO
DISPLAY IS BLANK AND NO STATION
INFORMATION IS DISPLAYED
(WITHOUT ACURALINK)
)

Audio system sound is
weak or distorted (display
is normal)

Symptom Troubleshooting (see AUDIO
SYSTEM SOUND IS WEAK OR
DISTORTED (DISPLAY IS NORMAL)
)

XM radio preset memory
is lost (with AcuraLink)

Symptom Troubleshooting (see XM RADIO
PRESET MEMORY IS LOST (WITH
ACURALINK)
)

XM radio preset memory
is lost (without
AcuraLink)

Symptom Troubleshooting (see XM RADIO
PRESET MEMORY IS LOST (WITHOUT
ACURALINK)
)

Audio disc does not eject

Symptom Troubleshooting (see AUDIO DISC
DOES NOT EJECT
)

Radio preset memory is
lost

Symptom Troubleshooting (see RADIO
PRESET MEMORY IS LOST
)

Battery condition

Battery cable
condition

Audio unit button
illumination does not
work

Symptom Troubleshooting (see AUDIO UNIT
BUTTON ILLUMINATION DOES NOT
WORK
)

Audio disc changer does
not load all six discs

Symptom Troubleshooting (see AUDIO DISC
CHANGER DOES NOT LOAD ALL SIX
DISCS
)

Tire pressure (over-
inflated), disc smudged,
dirty, or scratched

Audio disc changer does
not move between discs

Symptom Troubleshooting (see AUDIO DISC
CHANGER DOES NOT MOVE BETWEEN
DISCS
)

Volume does not change

Symptom Troubleshooting (see VOLUME
DOES NOT CHANGE
)

Radio tuner does not
change stations

Symptom Troubleshooting (see RADIO
TUNER DOES NOT CHANGE STATIONS
)

Symptom Troubleshooting (see AUDIO DISC

2007 Acura RL

2005-08 ACCESSORIES AND EQUIPMENT Audio System — RL

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© 2005 Mitchell Repair Information Company, LLC.

SYSTEM DESCRIPTION

OVERVIEW

The audio unit acts as the «processor» for all audio functions. You can select of the audio functions from the
front panel, the audio remote (on steering wheel), or by using the navigation voice control system. The audio
display provides the current front and rear audio status. For vehicles with the navigation option, additional
audio information is available by touching the audio button. (See owner’s manual for more details.)

Each audio component passes its audio signal to the audio unit. In addition, it communicates with the audio
unit via the GA-Net bus. Any open connection in this circuit will cause audio and navigation functions to
appear inoperative.

With the premium sound system, an audio amplifier unit powers the speakers, otherwise the speakers are
powered directly by the audio unit.

The system includes an active noise control system to cancel some of the vehicle noise. It use a sine-wave-
shaped sound output to cancel low frequency noise. Two microphones detect the low frequency sound, and
the system outputs a canceling sound through the audio speakers.

Fig. 3: Identifying Sound Wave
Courtesy of AMERICAN HONDA MOTOR CO., INC.

Audio disc does not load

DOES NOT LOAD )

Audio disc does not play

Symptom Troubleshooting (see AUDIO DISC
DOES NOT PLAY
)

Audio disc skips

Symptom Troubleshooting (see AUDIO DISC
SKIPS
)

Tire pressure (over-
inflated)

Audio remote switch does
not work properly

Symptom Troubleshooting (see AUDIO
REMOTE SWITCH DOES NOT WORK
PROPERLY
)

Error code: XM NO
SIGNAL is displayed

Symptom Troubleshooting (see ERROR
CODE: XM NO SIGNAL IS DISPLAYED
)

Error code: XM
ANTENNA is displayed

Symptom Troubleshooting (see ERROR
CODE: XM ANTENNA IS DISPLAYED
)

Booming sound while
driving with audio unit on
or off

Symptom Troubleshooting (see BOOMING
SOUND WHILE DRIVING WITH AUDIO
UNIT ON OR OFF
)

2007 Acura RL

2005-08 ACCESSORIES AND EQUIPMENT Audio System — RL

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© 2005 Mitchell Repair Information Company, LLC.

The 6CD changer output can be directed to the audio unit.

The XM radio plays through the audio unit.

A security signal is daisy-chained between the audio and navigation components for integration into the
vehicle’s alarm system.

The optional navigation system provides voice control for front/rear audio, XM, and CD player. Voice
control commands are communicated on the GA-Net (audio unit). When using the TALK/BACK or route
guidance (RG), only the center speaker is muted and the front speakers give the navigation instructions.
When using OnStar/HFL/AcuraLink, the center speaker, the rear speakers, and the subwoofer are muted and
the front speakers give the telephone sound. When using OnStar/HFL/AcuraLink and RG or TALK/BACK,
the center speaker, the rear speakers, and the subwoofer are muted and the front speakers give the telephone
sound and the navigation instructions. Muting commands are passed on the GA-Net bus. For more
information, see NAVIGATION SYSTEM article . The outline of the audio interruption function is shown
in the following table.

AUDIO INTERRUPTION FUNCTION

System Diagram

Contents

Audio output

Center

CH

Left front CH Right front CH

Right

rear

CH

Left

rear

CH

Subwoofer

CH

TALK/BACK

MUTE

Navigation

sound

Navigation

sound

Audio

Audio

Audio

Route guidance

MUTE

Navigation

sound

Navigation

sound

Audio

Audio

Audio

OnStar/HFL/AcuraLink

MUTE

Telephone

sound

Telephone

sound

MUTE MUTE

MUTE

OnStar/HFL/AcuraLink and

RG or TALK/BACK

MUTE

Telephone

sound and

navigation

sound

Telephone

sound and

navigation

sound

MUTE MUTE

MUTE

2007 Acura RL

2005-08 ACCESSORIES AND EQUIPMENT Audio System — RL

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© 2005 Mitchell Repair Information Company, LLC.

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