CLIMATE CONTROL UNIT [MANUAL AIR CONDITIONER]

id0740a2005100


Purpose

•  The climate control unit controls the air conditioner in conjunction with the A/C operations performed by the occupants.

Function

•  The climate control unit outputs an operation signal for each switch or dial. (See MANUAL AIR CONDITIONER SYSTEM [MANUAL AIR CONDITIONER].)

Dial set position detection function

•  The climate control unit detects the set position of each operation dial and outputs the following signals to the instrument cluster.
•  The instrument cluster determines each control based on each dial set position signal from the climate control unit.

RECIRCULATE/FRESH lever type

Dial set position

Output signal

Control item
Set position of temperature setting dial
(Without heater system)
Set position signal
•  A/C compressor control
Airflow volume control dial is at 1st or higher
Blower ON signal
•  A/C compressor control
Airflow volume control dial is at 3rd or 4th
Blower speed signal
•  Generator output control

RECIRCULATE/FRESH switch type

Dial set position

Output signal

Control item
MODE dial is at defroster
Defroster position signal
•  Air intake control
•  i-stop (engine stop control) permission determination (With i-stop)
Temperature setting dial is at MAX COLD
(With MAX A/C control)
MAX COLD position signal
•  A/C compressor control
Airflow volume control dial is at 1st or higher
Blower ON signal
•  A/C compressor control
•  i-stop (engine stop control) permission determination (With i-stop)
Airflow volume control dial is at 3rd or 4th
Blower speed signal
•  Generator output control


Construction

•  The climate control unit has adopted a wire type to the following controls.
―  Air mix door (temperature setting dial)
―  Air intake door (RECIRCULATE/FRESH lever (RECIRCULATE/FRESH lever type))
―  Airflow mode door (MODE dial)
•  The climate control unit consists of a control panel and a control unit.
•  The MS-CAN terminal resistance is integrated into the climate control unit.
Note
•  The terminal resistance integrated into the climate control unit is used by the MS-CAN transmission, but CAN transmission is not used in the manual air conditioner system.
•  The switches and dials shown in the figure are positioned on the control panel.
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Operation


RECIRCULATE/FRESH lever type

•  The climate control unit performs the controls shown in the table according to the switch/dial operation.

Airflow temperature control

Airflow volume control

Airflow mode control

A/C compressor control

Operation switches/dials

Control before switch operation

Control before switch operation

Control before switch operation

Control before switch operation

Manual control

Manual control

Manual control

Manual control
Airflow volume control
dial
OFF
No change
OFF
No change
OFF
1―4
Manual control
No change
MODE dial
VENT
No change
No change
Manual control
No change
BI-LEVEL
HEAT
DEF/HEAT
DEFROSTER
Temperature setting
dial
COLD
No change
No change
No change
No change
HOT
A/C switch
No change
No change
No change
Manual control
Rear window defogger switch
No change
No change
No change
No change

Temperature setting dial set position detection function (Without heater system)
•  For the temperature setting dial set position detection function, the potentiometer integrated with the climate control unit is linked to the temperature setting dial operation.
•  When the temperature setting dial set position is MAX COLD, the potentiometer voltage increases. When the position is MIN COLD, the voltage decreases.
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RECIRCULATE/FRESH switch type

•  The climate control unit performs the controls shown in the table according to the switch/dial operation.

Airflow temperature control

Airflow volume control

Airflow mode control

Operation switches/dials

Control before switch operation

Control before switch operation

Control before switch operation

Manual control

Manual control

Manual control

Defroster control
Airflow volume control dial
OFF
No change
OFF
No change
No change
1—4
Manual control
MODE dial
VENT
No change
No change
Manual control
Manual control
BI-LEVEL
HEAT
DEF/HEAT
DEFROSTER
Temperature setting dial
MAX COLD*1
No change
No change
No change
No change
Except MAX COLD
A/C switch
No change
No change
No change
No change
RECIRCULATE switch
No change
No change
No change
No change
FRESH switch
No change
No change
No change
No change
Rear window defogger switch
No change
No change
No change
No change

*1  :With MAX A/C control

A/C compressor control

Air intake control

Operation switches/dials

Control before switch operation

Control before switch operation

Manual control

MAX A/C control*1

Manual control

Defroster control

MAX A/C control*1
Airflow volume control dial
OFF
OFF
OFF
No change
No change
No change
1—4
No change
No change
MODE dial
VENT
No change*1, *2
No change
No change*1, *2
Manual control*1, *2
No change
BI-LEVEL
HEAT
No change
Manual control
No change
Manual control
Manual control
DEF/HEAT
DEFROSTER
Defroster control
No change
Defroster control
Temperature setting dial
MAX COLD*1
No change *1, *2
No change
No change*1, *2
No change
No change
Except MAX COLD
No change
Manual control
No change
Manual control
A/C switch
Manual control
Manual control
No change
No change
No change
RECIRCULATE switch
No change
No change
Manual control
No change
Manual control
FRESH switch
No change
No change
Manual control
No change
Manual control
Rear window defogger switch
No change
No change
No change
No change
No change

*1  :With MAX A/C control
*2  :When the MAX A/C control conditions are met, it switches to MAX A/C control.