CLIMATE CONTROL UNIT [FULL-AUTO AIR CONDITIONER]

id0740a1004100


Purpose

•  The climate control unit controls the air conditioner in conjunction with the operation by the user and the vehicle driving conditions.

Function

•  The climate control unit determines the air-conditioning conditions based on the input signals from each sensor and the control module and the operation signals from the control panel, and controls each actuator, A/C compressor, and the blower motor. (See FULL-AUTO AIR CONDITIONER SYSTEM [FULL-AUTO AIR CONDITIONER].)

Automatic configuration function

•  When the ignition is switched ON (engine off or on) after the climate control unit is replaced, the climate control unit reads the vehicle specification information sent via CAN communication from the instrument cluster, and stores the vehicle specification information.
•  The vehicle specification information recorded by the climate control unit is not erased even if the ignition is switched OFF (LOCK).
•  The vehicle specification information recorded by the climate control unit is erased if the battery power is disconnected.


Construction

•  A logic-type climate control unit has been adopted.
•  The climate control unit consists of a control panel and a control unit.
•  The switches and dials shown in the figure are located on the control panel.
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Operation

•  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 condition before switch operation

Control condition before switch operation

Control condition before switch operation

Automatic control

Automatic control

Manual control

Defroster control

Automatic control

Manual control

Defroster control
Airflow volume control dial
OFF
OFF
OFF
OFF
OFF
Fixed at mode when turned off
No change
No change
AUTO
No change
No change
Automatic control
No change
No change
1―7
Manual control
Manual control
Manual control
MODE dial
AUTO
No change
No change
No change
Automatic control
No change
Automatic control
Automatic control
VENT
Manual control
Manual control
Manual control
BI-LEVEL
HEAT
DEF/HEAT
DEFROSTER
Defroster control
Temperature setting
Dial
15/ 59*1
18/ 64*2
MAX control
MAX HI
No change
MAX HI
No change
No change
No change
16—28/ 61—82*1
19—31/ 67—87*2
Automatic control
No change
No change
29/ 84*1
32/ 90*2
MAX control
AUTO HI*3
AUTO HI
RECIRCULATE switch
No change
No change
No change
No change
No change
No change
No change
A/C switch
No change
No change
No change
No change
No change
No change
No change
Rear window defogger switch
No change
No change
No change
No change
No change
No change
No change

*1  :European (L.H.D. U.K.) specs.
*2  :Except European (L.H.D. U.K.) specs.
*3  :Water temperature correction takes precedence.

Air intake control

A/C compressor control

Operation switches/dials

Control condition before switch operation

Control condition before switch operation

Manual control

Defroster control

Automatic control

Defroster control
Airflow volume control dial
OFF
No change
No change
OFF
OFF
AUTO
No change
No change
1―7
MODE dial
AUTO
No change
Auto control *3
No change
Auto control *3
VENT
BI-LEVEL
HEAT
DEF/HEAT
DEFROSTER
Defroster control
No change
Defroster control
No change
Temperature setting
Dial
15/ 59*1
18/ 64*2
No change
No change
No change
No change
16—28/ 61—82*1
19—31/ 67—87*2
29/ 84*1
32/ 90*2
RECIRCULATE switch
Manual control
Manual control
No change
No change
A/C switch
No change
No change
Manual control
Manual control
Rear window defogger switch
No change
No change
No change
No change

*1  :European (L.H.D. U.K.) specs.
*2  :Except European (L.H.D. U.K.) specs.
*3  :Returns to status prior to defroster control.