Mazda RX-8 Workshop Manual page 3287

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2011 - RX-8 - Body and Accessories
NO.2 NO POWER ON THE ENTIRE AUDIO SYSTEM [AUDIO]
2 No power on the entire audio system
Possible DTC 09:Er20
Possible DTC
Diagnostic procedure
STEP
1 Turn the ignition switch to the LOCK
position.
Inspect the following fuses:
Are the fuses normal?
2 Remove the audio unit.
Burnt fuse (B+)
Burnt fuse (ACC)
Open or short circuit in power supply (B+) wiring harness
Open or short circuit in power supply (ACC) wiring harness
Poor connection of audio unit connector, terminal damage
Poor connection of car-navigation unit connector, terminal damage
Audio unit malfunction
Car-navigation unit malfunction
INSPECTION
ROOM 15 A
ACC 7.5 A
YesGo to the next step.
No Replace with the appropriate standard fuse.
If the fuse is melted,
inspect the wiring harness
for short to ground. Repair
or replace the wiring
harness, then replace the
fuse.
YesGo to the next step.
ACTION