Mazda RX-8 Workshop Manual page 2661

1M A/C Refrigerant pressure switch
1N —
1O —
1P Serial signal Climate control unit
1Q —
1R Serial signal Climate control unit
1S —
1T —
Motor
1U Air mix actuator
operation
Fan stopped
Fan switch: ON and A/C
switch: ON
—
—
Terminal used for
communication therefore
determination based on
terminal voltage inspection
not possible. Only inspect for
an open or short circuit in
wiring harness between A/C
amplifier terminal 1P and
climate control unit terminal
K.
—
Terminal used for
communication therefore
determination based on
terminal voltage inspection
not possible. Only inspect for
an open or short circuit in
wiring harness between A/C
amplifier terminal 1R and
climate control unit terminal I.
—
—
Moving towards COLD
Moving towards HOT
B+
1.0 or
less
— —
— —
—
— —
—
— —
— —
1.0 or
less
12
harness
Refrigerant
pressure
switch
PCM:
terminal
voltage
(1AU)
A/C
amplifier:
terminal
voltage (2C,
2L)
—
—
Related
wiring
harness
—
Related
wiring
harness
—
—
Related
wiring
harness
Air mix
actuator