FULL-AUTO AIR CONDITIONER FUNCTION

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Block Diagram

• The control system consists of input components (sensors), output components (actuators, magnetic clutch, power MOS FET, and other parts), and a control device (front climate control unit).

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Control Table

• The full-auto air conditioner system functions based on the five basic types of controls and two supplementary functions.

×:Possible

-:Not possible

Basic control	Control description	Correction control	Front	Rear
Airflow temperature control	Airflow temperature automatic control	MAX HOT and MAX COLD correction	×	×
Airflow temperature control	Airflow temperature automatic control	Air mix actuator opening angle correction	×	×
Airflow volume control	Airflow volume automatic control	Warm-up correction	×	×
		Mild start correction	×	×
		MAX HOT and MAX COLD correction	×	×
		Defroster correction	×	-
		Solar radiation correction	×	-
	Airflow volume manual control	Defroster correction	×	-
Airflow mode control	Airflow mode automatic control	Warm-up correction	×	-
	Airflow mode automatic control	MAX HOT and MAX COLD correction	×	×
	Airflow mode manual control	―	×	-
Air intake control	Air intake automatic control	MAX HOT and MAX COLD correction	×	-
	Air intake automatic control	Defroster correction	×	-
	Air intake manual control	Defroster correction	×	-
A/C compressor control	A/C compressor automatic control	MAX HOT and MAX COLD correction	×	-
	A/C compressor automatic control	Defroster correction	×	-
	A/C compressor manual control	Defroster correction	×	-

Supplementary function

Fail-safe function

On-board diagnostic function

Supplementary function
Fail-safe function
On-board diagnostic function

Control Type Transition by Switch Operation (Front)

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 Driver-side	Automatic control Passenger-side		Automatic control	Defroster correction	Manual control
		Automatic control Driver-side	Dual ON	Dual OFF	Automatic control	Defroster correction	1	2	3	4	5	6	7
OFF switch		Automatic control	Automatic control	Automatic control	OFF	OFF	OFF
AUTO switch		Automatic control	Automatic control	Automatic control	Automatic control	^*6	^*6
Fan switch	+	Automatic control	Automatic control	Automatic control	Manual control^*2	Manual control^*7	2	3	4	5	6	7	7
Fan switch	-	Automatic control	Automatic control	Automatic control	Manual control^*3	Manual control^*8	1	1	2	3	4	5	6
MODE switch		Automatic control	Automatic control	Automatic control	Automatic control	^*5	No change
DEFROSTER switch		Automatic control	Defroster correction	Automatic control	Defroster correction	^*5	Defroster correction
A/C switch		Automatic control	Automatic control	Automatic control	Automatic control	No change	No change
REC switch		Automatic control	Automatic control	Automatic control	Automatic control	No change	No change
Driver-side temperature setting dial^*1	15.0	MAX COLD	Automatic control	MAX COLD	MAX HI ^*6	No change	No change
	15.5—31.5	Automatic control	Automatic control	Automatic control	Automatic control	No change	No change
	32.0	MAX HOT	Automatic control	MAX HOT	AUTO HI^4 ^6	No change	No change
Passenger-side temperature setting dial^*1	15.0	Automatic control	MAX COLD	MAX COLD	MAX HI ^*6	No change	No change
	15.5—31.5	Automatic control	Automatic control	Automatic control	Automatic control	No change	No change
	32.0	Automatic control	MAX HOT	MAX HOT	AUTO HI^4 ^6	No change	No change
DUAL switch		Automatic control	Automatic control	Automatic control	^*6	No change	No change

*1 :Adjusted up or down in increments of 0.5 within a range of 15.0—32.0.

*2 :Increases to the manual voltage that is closest to the auto voltage.

*3 :Decreases to the manual voltage that is closest to the auto voltage.

*4 :Warm-up correction takes precedence.

*5 :Returns to condition prior to defroster operation. However, if it had been off prior to defroster operation, it switches to automatic control.

*6 :MAX HOT and MAX COLD correction takes precedence.

*7 :Increases to the manual voltage that is closest to the defroster correction voltage.

*8 :Decreases to the manual voltage that is closest to the defroster correction voltage.

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^*2	FRESH	No change	OFF	OFF
AUTO switch		Automatic control	Automatic control	Automatic control	Automatic control	Automatic control	Automatic control
Fan switch	+	Automatic control	No change	Automatic control	No change	Automatic control	No change
Fan switch	-	Automatic control	No change	Automatic control	No change	Automatic control	No change
MODE switch		VENT → BI-LEVEL BI-LEVEL → HEAT HEAT → HEAT/DEF HEAT/DEF → VENT DEFROSTER → HEAT	VENT → BI-LEVEL BI-LEVEL → HEAT HEAT → HEAT/DEF HEAT/DEF → VENT DEFROSTER →^*2	Automatic control^*3	No change^*3	Automatic control^*6	No change^*6
DEFROSTER switch		DEFROSTER	DEFROSTER^*2	Defroster correction	Defroster correction^*2	Defroster correction	Defroster correction
A/C switch		Automatic control	No change	Automatic control	No change	A/C→OFF OFF→A/C^*4	A/C→OFF OFF→A/C^*4
REC/FRESH switch		Automatic control	No change	FRESH→REC REC→FRESH^*5	FRESH→REC REC→FRESH^*5	Automatic control	No change
Driver-side temperature setting dial^*1	15.0	Automatic control	No change	Automatic control	No change	Automatic control	No change
	15.5—31.5	Automatic control	No change	Automatic control	No change	Automatic control	No change
	32.0	Automatic control	No change	Automatic control	No change	Automatic control	No change
Passenger-side temperature setting dial^*1	15.0	Automatic control	No change	Automatic control	No change	Automatic control	No change
	15.5—31.5	Automatic control	No change	Automatic control	No change	Automatic control	No change
	32.0	Automatic control	No change	Automatic control	No change	Automatic control	No change
DUAL switch		Automatic control	No change	Automatic control	No change	Automatic control	No change

*1 :Adjusted up or down in increments of 0.5 within a range of 15.0—32.0.

*2 :Returns to condition prior to defroster operation.

*3 :FRESH during HEAT/DEF

*4 :A/C is set at ON during DEFROSTER, HEAT/DEF, HEAT. Switches only to the A/C display. (L.H.D.) / A/C is set at ON during DEFROSTER. Switches only to the A/C display. (R.H.D.)

*5 :Set at FRESH during DEFROSTER, HEAT/DEF (L.H.D.) / Set at FRESH during DEFROSTER (R.H.D.)

*6 :A/C ON during HEAT/DEF

Control Type Transition by Switch Operation (Rear, SYNC off)

Airflow temperature control, airflow volume control, airflow mode control

Operation switch			Airflow temperature control		Airflow volume control			Airflow mode control
			Control prior to switch operation		Control prior to switch operation			Control prior to switch operation
			Rear fan on	Rear fan off	Automatic control	Manual control	Rear fan off	Automatic control		Manual control
			Rear fan on	Rear fan off	Rear fan on		Rear fan off	Rear fan on	Rear fan off	Rear fan on	Rear fan off
REAR	OFF switch		OFF	No change	OFF	OFF	No change	OFF	No change	OFF	No change
	AUTO switch		No change	Automatic control	No change	Automatic control^*7	Automatic control^*7	No change	Automatic control	Automatic control	Automatic control
	Fan switch	Up	No change	Automatic control	Automatic control^*2	1→2 2→3 3→4 4→5	Rear fan on (1st)	No change	Automatic control	No change	Fixed at mode before turned OFF
	Fan switch	Down	No change	Automatic control	Automatic control^*3	5→4 4→3 3→2 2→1	Rear fan on (1st)	No change	Automatic control	No change	Fixed at mode before turned OFF
	MODE switch		No change	No change	No change	No change	No change	VENT → BI-LEVEL^8 BI-LEVEL → HEAT^8 HEAT → VENT^*8	No change	VENT → BI-LEVEL BI-LEVEL → HEAT HEAT → VENT	No change
	Temperature setting switch^*1	15.0	Max control	No change	MAX HI	No change	No change	No change	No change	No change	No change
		15.5—31.5	Automatic control	No change	Automatic control	No change	No change	No change	No change	No change	No change
		32.0	Max control	No change	AUTO HI^*5	No change	No change	No change	No change	No change	No change
FRONT	OFF switch		OFF^*6	OFF^*6	OFF^*6	OFF^*6	OFF^*6	OFF^*6	OFF^*6	OFF^*6	OFF^*6
	AUTO switch		No change	No change	No change	No change	No change	No change	No change	No change	No change
	Fan switch	Up	No change	No change	No change	No change	No change	No change	No change	No change	No change
	Fan switch	Down	No change	No change	No change	No change	No change	No change	No change	No change	No change
	DEFROSTER switch		No change	No change	No change	No change	No change	No change	No change	No change	No change
	Driver-side temperature setting dial^*1	15.0	No change	No change	No change	No change	No change	No change	No change	No change	No change
		15.5—31.5	No change	No change	No change	No change	No change	No change	No change	No change	No change
		32.0	No change	No change	No change	No change	No change	No change	No change	No change	No change
	Rear control switch		Rear fan off	Automatic control^{4, 6}	Rear fan off	Rear fan off	Automatic control^{4, 6}	Rear fan off	Automatic control^{4, 6}	Rear fan off	Automatic control^{4, 6}

*1 :Adjusted up or down in increments of 0.5 within a range of 15.0—32.0.

*2 :Increases to the manual voltage that is closest to the auto voltage.

*3 :Decreases to the manual voltage that is closest to the auto voltage.

*4 :Set to the driver-side airflow temperature setting dial position.

*5 :Warm-up correction takes precedence.

*6 :The SYNC is turned on.

*7 :Set to the rear airflow temperature setting dial position.

*8 :Manual control.

Control Type Transition by Switch Operation (Rear, SYNC on)

Airflow temperature control, airflow volume control, airflow mode control

Operation switch			Airflow temperature control		Airflow volume control		Airflow mode control
			Control prior to switch operation		Control prior to switch operation		Control prior to switch operation
			Rear fan on	Front and rear fan off	Automatic control	Front and rear fan off	Automatic control
			Rear fan on	Front and rear fan off	Rear fan on	Front and rear fan off	Rear fan on	Front and rear fan off
REAR	OFF switch		OFF^*2	No change	OFF^*2	No change	OFF^*2	No change
	AUTO switch		Automatic control^*2	No change	Automatic control^*2	No change	Automatic control^*2	No change
	Fan switch	Up	Automatic control^*2	No change	Automatic control^*3	No change	Automatic control^*2	No change
	Fan switch	Down	Automatic control^*2	No change	Automatic control^*4	No change	Automatic control^*2	No change
	MODE switch		Automatic control^*2	No change	Automatic control^*2	No change	VENT → BI-LEVEL^2^,7 BI-LEVEL → HEAT^2^,7 HEAT → VENT^2^,7	No change
	Temperature setting switch^*1	15.0	Max control^*2	No change	MAX HI^*2	No change	Automatic control^*2	No change
		15.5—31.5	Automatic control^*2	No change	Automatic control^*2	No change	Automatic control^*2	No change
		32.0	Max control^*2	No change	AUTO HI^{2, 5}	No change	Automatic control^*2	No change
FRONT	OFF switch		OFF^*2	No change	OFF^*2	No change	OFF^*2	No change
	AUTO switch		No change	Automatic control^*6	No change	Automatic control^*6	No change	Automatic control
	Fan switch	Up	No change	Automatic control^*6	No change	Automatic control^*6	No change	Automatic control
	Fan switch	Down	No change	Automatic control^*6	No change	Automatic control^*6	No change	Automatic control
	DEFROSTER switch		No change	Automatic control^*6	No change	Automatic control^*6	No change	Automatic control
	Driver-side temperature setting dial^*1	15.0	Max control	No change	MAX HI	No change	No change	No change
		15.5—31.5	Automatic control	No change	Automatic control	No change	No change	No change
		32.0	Max control	No change	AUTO HI^*5	No change	No change	No change
	Rear control switch		Rear fan off^*2	No change	Rear fan off^*2	No change	Rear fan off^*2	No change

*1 :Adjusted up or down in increments of 0.5 within a range of 15.0—32.0.

*2 :The SYNC is turned off.

*3 :Increases to the manual voltage that is closest to the auto voltage.

*4 :Decreases to the manual voltage that is closest to the auto voltage.

*5 :Warm-up correction takes precedence.

*6 :Set to the driver-side airflow temperature setting dial position.

*7 :Manual control.