Mazda RX-8 Workshop Manual page 3315

Is there continuity?
6 Inspect the connection of the audio
amplifier connector (24-pin, 8-pin).
Is the connector connected
securely?
7 Turn the ignition switch to LOCK
position.
Disconnect the audio amplifier
connector (8-pin, 16-pin).
Inspect continuity between the
following terminals of the audio
amplifier connector and speaker
connector.
Terminal C (LH-)—
Terminal 1C
Terminal D (RH+)
—Terminal 1F
Terminal F (RH-)—
Terminal 1E
For rear speaker
(audio amplifier
- audio unit or
car-navigation
unit)
Terminal S (LH+)—
Terminal 1H
Terminal U (LH-)—
Terminal 1G
Terminal V (RH+)
—Terminal 1J
Terminal X (RH-)—
Terminal 1I
For front
speaker (LH)
Terminal 2B (16-
pin)—Terminal A
Terminal 2D (16-
pin)—Terminal B
YesGo to the next step.
No Connect the audio amplifier (24-pin, 8-pin)
securely.
YesGo to the next step.
No Repair or replace the repair related wiring
harnesses.