Mazda 6. Manual — part 85
CONTROL SYSTEM
U–13
U
CLIMATE CONTROL UNIT
A6E854061190T01
Manual Air Conditioner
•
A wire-type climate control unit is used with the manual air conditioner.
•
The airflow mode selector dial, temperature control dial, fan switch have been enlarged to improve ease of
operation.
•
The A/C, REC/FRESH and rear defroster switches equipped in the current climate control unit have been
relocated to the center panel.
.
•
A defroster switch into the climate control unit detects when the airflow mode selector dial is turned to
DEFROSTER position. When the defroster switch turned on, the center panel starts defroster control. (See
.
A6E8540T035
1
Climate control unit
2
Airflow mode selector dial
3
fan switch
4
Temperature control dial
A6E8540T036
1
Climate control unit
2
Airflow mode selector dial
3
Defroster switch
U–14
CONTROL SYSTEM
Full-auto Air Conditioner
•
A logic-type climate control unit is used with the full-auto air conditioner.
•
The airflow mode selector dial, temperature setting dial, fan switch have been enlarged to improve ease of
operation.
•
The A/C, REC/FRESH and rear defroster switches equipped in the current climate control unit have been
relocated to the center panel.
.
•
Information about the operating condition of the system is displayed on the information display.
.
End Of Sie
A6E8540T037
1
Climate control unit
2
Fan switch
3
OFF switch
4
MODE switch
5
Temperature setting dial
6
Defroster switch
7
AUTO switch
A6E8540T038
1
Information display
CONTROL SYSTEM
U–15
U
MANUAL AIR CONDITIONER CONTROL SYSTEM
A6E854001081T01
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.
.
A6E8540T048
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
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
U–16
CONTROL SYSTEM
System Wiring Diagram
.
Outline of Control System
•
Manual air conditioner defroster control and A/C compressor control.
A6E8540T039
1
Blower relay
2
Blower motor
3
Resistor
4
Climate control unit
5
Defroster switch
6
From PCM
7
Refrigerant pressure switch
8
Ambient temperature sensor
9
Evaporator temperature sensor
10
Air intake actuator
11
Center panel
12
A/C relay
13
Magnetic clutch
14
To PCM
Control name
Control part
Defroster control
Climate control unit
A/C compressor control
Center panel
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