Mazda RX-8 Workshop Manual page 3296

Is there continuity?
6 Turn the ignition switch to LOCK
position.
Disconnect the audio amplifier
connector (24-pin) and audio unit
or car-navigation unit connector
(24-pin).
Inspect the continuity between the
audio amplifier terminal IL (24-pin,
vehicle harness-side) and audio
unit or car-navigation unit terminal
J (24-pin, vehicle harness-side).
Is there continuity?
7 Is there any sound?
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Terminal 1E (8-
pin, RH OUT-)—
GND
For center
speaker
Terminal 1H (8-
pin, CENTER
OUT+)—GND
Terminal 1G (8-
pin, CENTER OUT-
)—GND
© 2010 Mazda North American Operations, U.S.A.
YesReplace the audio amplifier.
(See AUDIO AMPLIFIER
REMOVAL/INSTALLATION.)
No Repair or replace the wiring harness between
the audio amplifier and audio unit.
Then go to the next step.
YesThe system is normal.
No Replace the audio amplifier.
(See AUDIO AMPLIFIER
REMOVAL/INSTALLATION.)
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