Nissan Cube. Manual - part 544

HAC-14

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

COMPRESSOR CONTROL FUNCTION

Magnet clutch

HAC-59, "Description"

Refrigerant pressure sensor

EC-425, "Description"

 

A/C control (A/C auto amp.)

HAC-66, "Description"

In-vehicle sensor

HAC-36, "Description"

Blower motor

HAC-54, "Description"

Air mix door motor

HAC-44, "Description"

Power transistor

HAC-54, "Description"

Intake sensor

HAC-39, "Description"

Mode door motor

HAC-47, "Description"

Intake door motor

HAC-50, "Description"

Component

Description

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-15

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

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AUTOMATIC AIR CONDITIONING SYSTEM

System Diagram

INFOID:0000000009950972

System Description

INFOID:0000000009950973

OUTLINE

• Automatic air conditioner system is controlled by each function of A/C auto amp., ECM, BCM and IPDM E/R.

Control by A/C auto amp.

- Air outlet control
- Temperature control
- Air inlet control
- Air flow control
- Compressor control
- Door motor control (LCU communication control)

Control by BCM

- Compressor control

Control by ECM

- Cooling fan control. Refer to 

EC-74, "System Description"

.

- Air conditioning cut control. Refer to 

EC-58, "System Description"

.

- Compressor control

Control by IPDM E/R

- Relay control. Refer to 

PCS-4, "System Description"

 (WITH I-KEY) or 

PCS-35, "System Description"

 (WITH-

OUT I-KEY).

- Cooling fan control. Refer to 

PCS-4, "System Description"

 (WITH I-KEY) or 

PCS-35, "System Description"

(WITHOUT I-KEY).

• Each A/C system can be operated by A/C controller (built-in A/C auto amp.).

JPIIA1652GB

HAC-16

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

AUTOMATIC AIR CONDITIONING SYSTEM

OPERATION

Controller (A/C Control)

 For USA

 For Canada

Switch Operation

JPIIA1668ZZ

1.

DEF switch

2.

Fan control switch

3.

OFF switch

4.

MODE switch

5.

REC switch

6.

FRE switch

7.

A/C switch

8.

Temperature control switch

9.

AUTO switch

10. Rear window defogger switch

11.

A/C display

JPIIA1653ZZ

1.

DEF switch

2.

Fan control switch

3.

OFF switch

4.

MODE switch

5.

REC switch

6.

FRE switch

7.

A/C switch

8.

Temperature control switch

9.

AUTO switch

10. Rear window defogger switch

11.

A/C display

AUTOMATIC AIR CONDITIONING SYSTEM

HAC-17

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

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DEF switch

• DEF switch indicator is turned ON 

⇔

 OFF by pressing DEF switch each time.

• When DEF switch is operated while air conditioner system is activated, the system becomes the 

following states.

- Compressor: ON 
- Air inlet: Fresh air intake
- Blower fan: Auto control (if blower fan is set to manual mode before pressing DEF switch, it be-

comes manual mode)

- When DEF mode set to OFF, air conditioner system returns previous condition which is set to DEF 

mode.   

• When DEF switch is operated while air conditioner system is inactivation, the system becomes the 

following states.

- Air conditioner system: ON 
- Compressor: ON
- Air inlet: Fresh air intake
- Blower fan: Auto control
• When DEF mode set to OFF, all air conditioner system is OFF.
NOTE:
When DEF mode is set to ON during auto control of air conditioner system, the system becomes man-
ual control. 

Fan control switch

Fan speed is selected within a range between 1st – 7th speed by pressing this switch.
NOTE:
• When air conditioner system is OFF, air conditioner system is set to ON by pressing this switch. 
• When fan control switch is operated during auto control of air conditioner system, the system be-

comes manual mode.

OFF switch

• Air conditioner system is turned OFF by pressing this switch.
• When the air conditioner system becomes OFF, air inlet and outlet are set as follows:
- Air inlet: FRE (except REC is manually selected)
- Air outlet: FOOT 

Mode switch

• Mode position is changed in order of VENT 

⇒

 B/L 

⇒

 FOOT 

⇒

 D/F 

⇒

 VENT by operating this 

switch each time.

• When D/F is selected while blower motor is activated, air conditioner system becomes the following 

states.

- Compressor: ON
- Air inlet: Fresh air intake
NOTE:
When MODE switch is operated during auto control of air conditioner system, the system becomes 
manual mode.

REC switch

Air inlet is selected to recirculation (REC) by pressing this switch.
• REC  indicator  ON
• FRE indicator OFF
NOTE:
• Even if the air conditioner system is OFF, air inlet can be selected.
• When mode position is D/F or DEF, recirculation (REC) cannot be selected.
• When REC switch is selected, the compressor is turned ON.
• When REC indicator is ON, pressing the REC switch for approximately 1.5 seconds or more, and 

then the FRE and REC switch indicators blink twice and the system is switched to the automatic 
control.

FRE switch

Air inlet is selected to fresh air intake (FRE) by pressing this switch.
• FRE indicator: ON
• REC indicator: OFF
NOTE:
• Even if the air conditioner system is OFF, air inlet can be selected.
• When mode position is D/F or DEF, air inlet is set to FRE forcibly.
• When FRE indicator is ON, pressing the FRE switch for approximately 1.5 seconds or more, and 

then the FRE and REC switch indicators blink twice and the system is switched to the automatic 
control.

Temperature control 
switch

Setting temperature is selected within a range between 18

°

C (60

°

F) – 32

°

C (90

°

F) by pressing this 

switch.

•

:  Increase

•

:  Decrease

NOTE:
Even if air conditioner system is OFF, setting temperature can be selected by pressing these switch.