Mazda 6 Training Manual page 334

MANUAL AIR CONDITIONER CONTROL SYSTEM
Block Diagram
• The climate control unit carries out the defroster control base on signal sent from the airflow mode selector dial,
and sends an operating signal to the air intake actuator.
• The center panel sends an A/C signal to the PCM via the refrigerant pressure switch based on signals sent
from the A/C switch, fan switch and evaporator temperature sensor.
• The PCM sends operating signals to the A/C relay and IAC valve based on A/C signal and vehicle signal.
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1 Evaporator temperature sensor
2 A/C switch
3 Fan switch
4 Center panel
5 A/C compressor control
6 Refrigerant pressure switch (HI and LO pressure)
7 Refrigerant pressure switch (middle pressure) (L3
engine only)
8 Climate control unit
CONTROL SYSTEM
9 Defroster control
10 A/C cut-off control
11 Idle air control
12 Air intake actuator
13 A/C relay
14 Thermal protector
15 Magnetic clutch
16 IAC valve
A6E854001081T01
A6E8540T048
U
U–15