Mazda RX-8 Workshop Manual page 3432

8 Inspect the connection of audio
amplifier connector.
Is the connector securely connected?
9 Disconnect the audio amplifier
connector.
Inspect both the audio amplifier and
wiring harness-side connector
terminal 1C, 1D, 1E, 1F, 3C, 3D, 3E,
and 3F for poor connection (such as
damaged/pulled out pins, corrosion).
Are all pins normal?
10 Inspect there continuity between
following car-navigation unit and
audio amplifier at harness-side
connector.
Car-navigation unit
terminal 1A (24-pin,
Fr SP LH+) and
audio amplifier
terminal 3D (FL IN
+)
Car-navigation unit
terminal 1C (24-pin,
Replace the car-navigation
unit.
(See CENTER PANEL UNIT
REMOVAL/INSTALLATION).
(See CENTER PANEL UNIT
DISASSEMBLY/ASSEMBLY).
If the wiring harness-
side connector is
wrong:
Repair or replace the pins
and/or the connector.
YesGo to the next step.
No Securely connect the audio amplifier
connector.
YesGo to the next step.
If the audio amplifier
No
connector is wrong:
Replace the audio
amplifier.
(See AUDIO AMPLIFIER
REMOVAL/INSTALLATION.)
If the wiring harness-
side connector is
wrong:
Repair or replace the pins
and/or the connector.
YesInspect for short circuit in wiring harness.
If there is a short circuit,
repair or replace the
suspect wiring harness.
If the wiring harness is
okay, go to Step 12.
No Repair or replace wiring harness.