Mazda RX-8 Workshop Manual page 3313

Diagnostic procedure
STEP
1 Turn the audio unit on.
Press AUDIO CONT switch 1
second (BAL/FED cancel mode).
Press the POWER/VOLUME switch
and simultaneously press down the
AUTO-M switch for approx. 2
seconds.
NOTE:
The speaker from which the sound
is not emitted is specified using by
that the speaker voice changes.
Is there any speaker with no
sound?
2 Does the same speaker have no
sound if changing the sound
source? (Radio, CD)
3 Turn the ignition switch to the LOCK
position.
Inspect the connection of the audio
unit or car-navigation unit connector
(24-pin). (for sound signal line)
Is the connector connected
securely?
4 Turn the ignition switch to the LOCK
position.
INSPECTION
Yes If no sound from some
speakers:
Go to the next step.
If not sound at all:
Go to the troubleshooting of
"No.3 No sound from all
speakers".
No The troubleshooting completed. (The system
is normal.)
YesGo to the next step.
No Replace the audio unit.
(See CENTER PANEL UNIT
REMOVAL/INSTALLATION.)
(See CENTER PANEL UNIT
DISASSEMBLY/ASSEMBLY.)
NOTE:
If a different speaker has no
sound now, the audio unit is
malfunctioning.
YesGo to the next step.
No Connect the audio unit or car-navigation unit
connector (24-pin) securely.
YesGo to the next step.
ACTION