Mazda RX-8 Workshop Manual page 3411

10 Inspect the following wiring harness
between the microphone and HF/TEL
unit.
Is there open or short circuit?
11 Inspect the following wiring harness
between the HF/TEL unit and car-
navigation unit.
Terminal A (6-pin,
MIC+) — Terminal B
(24-pin, MIC IN+)
Terminal B (6-pin,
MIC-) — Terminal D
(24-pin, MIC IN-)
Terminal C (6-pin,
MIC +B) — Terminal
U (24-pin, MIC +B)
Terminal D (6-pin,
GND) — Terminal F
(24-pin,
MIC_SHIELD)
Terminal E (6-pin,
MIC SENSE) —
Terminal J (24-pin,
MIC SENSE)
Terminal A (24-pin,
MIC OUT+) —
Terminal 3A (6-pin,
MIC+)
Terminal C (24-pin,
MIC OUT-) —
Terminal 3B (6-pin,
MIC-)
Terminal U (24-pin,
MIC +B) — Terminal
3C (6-pin, MIC +B)
Terminal E (24-pin,
MIC OUT SHIELD)
— Terminal 3D (6-
pin, GND)
wrong:
Repair or replace the pins
and/or the connector.
YesRepair or replace suspected wiring harness.
No Go to the next step.
YesRepair or replace suspected wiring harness.
No Replace the car-navigation unit.
(See MICROPHONE
REMOVAL/INSTALLATION.)
Then go to the next step.