CLIMATE CONTROL UNIT [FULL-AUTO AIR CONDITIONER]

id0740a1004100


Purpose

•  The climate control unit performs air conditioning according to the operation by the users and the driving conditions of the vehicle.

Function

•  The climate control unit determines optimum air-conditioning 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].)

Set temperature display switching function (dual type)

•  When the ambient temperature display in the instrument cluster is switched between Centigrade and Fahrenheit, the set temperature display in the climate control unit is switched between Centigrade and Fahrenheit. (See INSTRUMENTATION/DRIVER INFO. PERSONALIZATION.)
am3zzn00004759


Automatic configuration function

•  When the ignition is switched ON after the climate control unit is replaced, the climate control unit reads the vehicle specification information sent via CAN transmission from the instrument cluster using the automatic configuration function, and stores it.


Dual mode (dual type)

•  When the DUAL switch of the climate control unit is pressed or the RH-side temperature setting dial is operated, the DUAL mode turns on (DUAL switch indicator turns on).
•  When the DUAL mode turns on, the driver and passenger-side temperature settings can be performed independently by operating the RH and LH-side temperature setting dial.
•  When the DUAL mode turns on, the temperature setting display in the display panel is displayed independently according to each setting temperature for the driver and passenger sides.


Construction

Dual type
•  A logic-type climate control unit has been adopted.
•  The climate control unit consists of a control panel, display panel, and a control unit.
•  The switches and dials shown in the figure are positioned on the control panel.
•  The air conditioner setting is displayed in the display panel.

L.H.D.

am3zzn00004760

R.H.D.

am3zzn00004761
Single type
•  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 positioned on the control panel.
am3uun00003614

System Wiring Diagram

Dual type

am3zzn00004354

Single type

am3zzn00004762

Control Type Transition by Switch Operation


Dual type

Airflow temperature control, airflow volume control

Operation switch

Airflow temperature control

Airflow volume control

Control prior to switch operation

Control prior to switch operation

Automatic control

Automatic control

Defroster control

Manual control

OFF

1

2

3

4

5

6

7
OFF switch
No change
OFF
OFF
OFF
AUTO switch
No change
No change
Automatic control
Automatic control
Airflow volume control switch
UP
No change
Manual control*3
Manual control*3
1
2
3
4
5
6
7
7
DOWN
No change
Manual control*4
Manual control*4
1
1
1
2
3
4
5
6
MODE switch
No change
No change
Automatic control*4
No change
DEFROSTER switch
No change
Defroster control
Automatic control*5
Defroster control
A/C switch
No change
No change
No change
*6
No change
RECIRCULATE switch
No change
No change
No change
No change
FRESH switch
No change
No change
No change
No change
Driver-side temperature setting dial*1*2
15.0/60
18.0/64
MAX control
MAX control
MAX HI
No change
15.5—28.5/61—83
18.5—31.5/65—89
Automatic control
Automatic control
No change
No change
29.0/84
32.0/90
MAX control
MAX control
AUTO HI
No change
Passenger-side temperature setting dial*1*2
15.0/60
18.0/64
MAX control
MAX control
MAX HI
No change
15.5—28.5/61—83
18.5—31.5/65—89
Automatic control
Automatic control
No change
No change
29.0/84
32.0/90
MAX control
MAX control
AUTO HI
No change
Dual switch
Automatic control
No change
No change
No change
Rear window defroster switch
No change
No change
No change
No change

*1  :Adjusted up or down in increments of 0.5 with a range of 15.0—29.0 or 1 with a range of 60—84. (European (L.H.D. U.K.) specs.)
*2  :Adjusted up or down in increments of 0.5 with a range of 18.0—32.0 or 1 with a range of 64—90. (Except European (L.H.D. U.K.) specs.)
*3  :Increases to the manual voltage that is closest to the auto or defroster control voltage.
*4  :Decreases to the manual voltage that is closest to the auto or defroster control voltage.
*5  :Returns to condition prior to defroster operation. However, if it had been off prior to defroster operation, it switches to automatic control.
*6  :Returns to fan condition before fan off. However, if it was defroster control (manual control), it returns to condition as follows:
1.  If the fan switch is operated during defroster control (manual control) prior to turning off the A/C switch, the system returns to the fan operational status.
2.  If the fan switch is not operated during defroster control (manual control) prior to turning off the A/C switch, the system returns to the status prior to the defroster control. If the fan is off prior to the defroster control, the system changes to the fan auto control.

Airflow mode control, air intake control, A/C compressor control

Operation switch

Airflow mode control

Air intake control

A/C compressor control

Control prior to switch operation

Control prior to switch operation

Control prior to switch operation

Automatic control

Manual control

Automatic control

Manual control

Automatic control

Manual control
OFF switch
Fixed at mode before turned OFF
No change
Fixed at mode before turned OFF
No change
OFF
OFF
AUTO switch
No change
Automatic control
No change
Automatic control
No change
Automatic control
Airflow volume control switch
UP
No change
No change
No change
No change
No change
No change
DOWN
No change
No change
No change
No change
No change
No change
MODE switch
VENT → BI-LEVEL
BI-LEVEL → HEAT
HEAT → DEF/HEAT
DEF/HEAT → VENT
VENT → BI-LEVEL
BI-LEVEL → HEAT
HEAT → DEF/HEAT
DEF/HEAT → VENT
No change
No change
No change
No change
VENT → DEF/HEAT
DEF/HEAT → HEAT
HEAT → BI-LEVEL
BI-LEVEL → VENT
DEFROSTER (warm-up) → HEAT
VENT → DEF/HEAT
DEF/HEAT → HEAT
HEAT → BI-LEVEL
BI-LEVEL → VENT
DEFROSTER (warm-up) → HEAT
No change
No change
No change
No change
DEFROSTER switch
Defroster control
Defroster control
Defroster control
Defroster control
Defroster control
Defroster control
A/C switch
No change
No change
No change
No change
Manual control
Manual control
RECIRCULATE switch
No change
No change
Manual control
Manual control
No change
No change
FRESH switch
No change
No change
Manual control
Manual control
No change
No change
Driver-side temperature setting dial*1*2
15.0/60
18.0/64
No change
No change
No change
No change
No change
No change
15.5—28.5/61—83
18.5—31.5/65—89
No change
No change
No change
No change
No change
No change
29.0/84
32.0/90
No change
No change
No change
No change
No change
No change
Passenger-side temperature setting dial*1*2
15.0/60
18.0/64
No change
No change
No change
No change
No change
No change
15.5—28.5/61—83
18.5—31.5/65—89
No change
No change
No change
No change
No change
No change
29.0/84
32.0/90
No change
No change
No change
No change
No change
No change
Dual switch
No change
No change
No change
Automatic control
No change
No change
Rear window defroster switch
No change
No change
No change
No change
No change
No change

*1  :Adjusted up or down in increments of 0.5 with a range of 15.0—29.0 or 1 with a range of 60—84. (European (L.H.D. U.K.) specs.)
*2  :Adjusted up or down in increments of 0.5 with a range of 18.0—32.0 or 1 with a range of 64—90. (Except European (L.H.D. U.K.) specs.)


Single type

Airflow temperature control, airflow volume control

Operation switch

Airflow temperature control

Airflow volume control

Airflow volume control

Control prior to switch operation

Control prior to switch operation

Control prior to switch operation

Automatic control

Automatic control

Manual control

Defroster control

Automatic control

Manual control

Defroster control
Airflow volume control dial
OFF
No change
OFF
OFF
OFF
Fixed at mode before turned OFF
No change
No change
AUTO
No change
No change
Automatic control
No change
No change
No change
No change
1—7
No change
Manual control
Manual control
Manual control
No change
No change
Manual control
MODE dial
AUTO
No change
No change
No change
Automatic control
No change
Automatic control
Automatic control
VENT
No change
No change
No change
Automatic control
Manual control
Manual control
Manual control
BI-LEVEL
No change
No change
No change
Automatic control
Manual control
Manual control
Manual control
HEAT
No change
No change
No change
Automatic control
Manual control
Manual control
Manual control
DEF/HEAT
No change
No change
No change
Automatic control
Manual control
Manual control
Manual control
DEFROSTER
No change
Defroster control
No change
No change
Manual control
Manual control
Manual control
Temperature setting dial
MAX COLD
Automatic control
MAX control
No change
MAX control
No change
No change
No change
Except MAX COLD/MAX HOT
Automatic control
No change
No change
No change
No change
No change
No change
MAX HOT
Automatic control
MAX control
No change
MAX control
No change
No change
No change
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 defroster switch
No change
No change
No change
No change
No change
No change
No change

 

Air intake control, A/C compressor control

Operation switch

Air intake control

A/C compressor control

Control prior to switch operation

Control prior to switch operation

Automatic control

Manual control

Automatic control

Manual control
Airflow volume control dial
OFF
No change
No change
OFF
OFF
AUTO
No change
No change
No change
No change
1—7
No change
No change
No change
No change
MODE dial
AUTO
Automatic control
No change
No change
Automatic control
VENT
Automatic control
No change
No change
Automatic control
BI-LEVEL
Automatic control
No change
No change
Automatic control
HEAT
Automatic control
No change
No change
Automatic control
DEF/HEAT
Defroster control
Defroster control
Defroster control
Automatic control
DEFROSTER
Defroster control
Defroster control
Defroster control
Automatic control
Temperature setting dial
MAX COLD
Automatic control
No change
No change
No change
Except MAX COLD/MAX HOT
Automatic control
No change
No change
No change
MAX HOT
Automatic control
No change
No change
No change
RECIRCULATE switch
Manual control
Manual control
No change
No change
A/C switch
No change
No change
Manual control
Manual control
Rear window defroster switch
No change
No change
No change
No change