Nissan Murano. Manual - part 842

HAC-142

< SYSTEM DESCRIPTION >

[WITH 7 INCH DISPLAY]

COMPRESSOR CONTROL FUNCTION

Component’s Role

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Component

Reference

Refrigerant pressure sensor

EC-465, "Description"

Compressor

HAC-200, "Description"

Ambient sensor

HAC-172, "Description"

Intake door motor

HAC-191, "Description"

Upper ventilator door motor

HAC-193, "Description"

Air mix door motor (driver side)

HAC-184, "Description"

Air mix door motor (passenger side)

HAC-186, "Description"

Mode door motor

HAC-188, "Description"

Sunload sensor

HAC-181, "Description"

In-vehicle sensor

HAC-175, "Description"

A/C auto amp. 

HAC-202, "A/C AUTO AMP. : Description"

Intake sensor

HAC-178, "Description"

Blower motor

HAC-196, "Description"

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-143

< SYSTEM DESCRIPTION >

[WITH 7 INCH DISPLAY]

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AUTOMATIC AIR CONDITIONER SYSTEM

System Diagram

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CONTROL SYSTEM

The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The
relationship of these components is as shown in the figure below:

System Description

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CONTROL OPERATION

Display

The operation status of the system is displayed on the screen.

Models with navigation system

JSIIA1542GB

JMIIA0719GB

HAC-144

< SYSTEM DESCRIPTION >

[WITH 7 INCH DISPLAY]

AUTOMATIC AIR CONDITIONER SYSTEM

Models without navigation system

Preset Switch

MODE Switch

The air discharge outlets are controlled with this switch.

Temperature Control Dial (Driver Side) 

The set temperature is increased or decreased with this dial.

Temperature Control Dial (Passenger Side) 

• The set temperature is increased or decreased with this dial.
• When the temperature control dial is turned, DUAL switch indicator is turned ON.

AUTO Switch 

• The compressor, intake doors, air mix doors, mode doors and blower speed are automatically controlled so

that the in-vehicle temperature will reach, and be maintained at the set temperature selected by the operator.

• When pressing the AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automati-

cally controlled.

Defroster (DEF) Switch

Mode doors are set to the defrost position with this switch. Also, intake doors are set to the outside air position,
and compressor turns ON.

UPPER VENT Switch

• When the UPPER VENT switch is pressed, the UPPER VENT switch indicator is turned ON. 
• When the UPPER VENT switch indicator is turned ON, the UPPER VENT switch indicator is turned OFF by

pressing the defroster (DEF) switch (after the above operation, the UPPER VENT switch indicator is turned
ON by pressing the UPPER VENT switch). 

A/C Switch

Compressor turns ON or OFF with this switch.
(Pressing the A/C switch when the A/C switch is ON turns OFF the A/C switch and compressor.)

Fan Control Dial

The blower speed is manually controlled with this dial. Seven speeds are available for manual control (as
shown on the display screen).

JMIIA0722GB

JMIIA0486GB

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-145

< SYSTEM DESCRIPTION >

[WITH 7 INCH DISPLAY]

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ON/OFF Switch

Compressor and blower turn OFF, intake doors and the mode doors are automatically controlled.

Rear Window Defogger Switch

When indicator is ON, rear window is defogged.

Intake Switch

• When the intake switch is ON, the intake switch indicator is turned ON, and air inlet is set to REC.
• When the intake switch is pressed again, the intake switch indicator is turned OFF, and air inlet is set to FRE.
• When the intake switch is pressed for approximately 1.5 seconds or longer, the intake switch indicator lamps

blink twice. Then, automatic control mode is entered. Inlet status is displayed by indicator even when auto-
matically controlled.

• When the intake switch indicator is turned OFF, shifting mode position to D/F or DEF, or when compressor is

turned from ON to OFF, intake switch is automatically turned OFF (set to FRE mode). REC mode can be re-
entered by pressing intake switch again, and then compressor is turned ON. (Except D/F or DEF position)

DUAL Switch

• When the DUAL switch indicator is ON, the driver side and passenger side, temperature can each be set

independently.

• When the DUAL switch indicator is OFF, the driver side outlet and setting temperature are applied to both

sides.