Mazda RX-8 Workshop Manual page 2664

2N Sensor GND
ECT sensor
2O PCM
input
2P +5 V
Ambient
temperature
sensor
Evaporator
temperature
sensor
Under any condition
Air mix
actuator
Airflow
mode
actuator
Compared with temperature
detected by ECT sensor
Air mix IG SW ON
actuator
Airflow
mode
actuator
IG SW LOCK
A/C
amplifier:
terminal
voltage (2L)
1.0 or
less
Related
wiring
harness
Refer
ECT sensor
to
graph
A/C
3
amplifier:
terminal
voltage (2C,
2L)
Related
wiring
harness
Air mix
actuator
Airflow
5.0
mode
actuator
A/C
amplifier:
terminal
voltage (2C,
2L)
A/C
1.0 or
amplifier
less
replacement