Infiniti QX56 (Z62). Manual - part 794

OPERATION INSPECTION

HAC-67

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Operate fan switch. Visually check that status indicator in front display changes in accordance with the follow-
ing table.

NOTE:
• Plasmacluster

™

 ion technology developed by Sharp Corporation is installed in this item.

• Plasmacluster

™

 is a trademark of Sharp Corporation.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK AUTOMATIC INTAKE CONTROL (EXHAUST GAS / OUTSIDE ODOR DETECTING MECHANISM)

1.

Operate fan switch to set the fan speed to maximum speed.

2.

Press auto intake switch to set the air inlet to recirculation. The auto intake switch indicator and intake
switch indicator turn ON.

3.

Listen to intake sound and confirm air inlets change.

4.

Wait approximately for 5 minutes until air inlet switches to fresh air intake.

5.

Apply cigarette smoke or similar substance to exhaust gas / outside odor detecting sensor portion.

6.

Listen to intake sound and confirm air inlets change to recirculation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 4.

4.

CHECK SELF-DIAGNOSIS WITH CONSULT-III

1.

Perform self-diagnosis with CONSULT-III.

2.

Check that any DTC is detected.

Is any DTC detected?

YES

>> Refer to 

HAC-45, "DTC Index"

 and perform the appropriate diagnosis.

NO

>> Refer to 

HAC-135, "Diagnosis Chart By Symptom"

 and perform the appropriate diagnosis.

Fan speed

Front display (ion indicator)

2nd

CLEAN

5th

QUICK CLEAN

HAC-68

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

SYSTEM SETTING

SYSTEM SETTING

FRONT AUTOMATIC AIR CONDITIONING SYSTEM

FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Temperature Setting Trimmer 
(Front)

INFOID:0000000006275896

DESCRIPTION

If the temperature felt by the customer is different from the front air flow temperature controlled by the temper-
ature setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature set-
ting.

HOW TO SET

With CONSULT-III

Perform “TEMP SET CORRECT” of HVAC work support item. 

NOTE:
• When 

−

3.0

°

C (

−

6

°

F) is corrected on the temperature setting set as 25.0

°

C (77

°

F) the temperature controlled

by A/C auto amp. is 25.0

°

C (77

°

F) 

−

3.0

°

C (

−

6

°

F) = 22.0

°

C (72

°

F) and the temperature becomes lower than

the temperature setting. 

• When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10

V or less, the setting of the difference between the set temperature and control temperature may be can-
celled. 

FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Foot Position Setting Trimmer

INFOID:0000000006275897

DESCRIPTION

In FOOT mode, the air blowing to DEF can change ON/OFF. 

HOW TO SET

With CONSULT-III

Perform the “BLOW SET” of HVAC work support item. 

Work support items

Display (

°

C)

Display (

°

F)

TEMP SET CORRECT

3.0

6

2.5

5

2.0

4

1.5

3

1.0

2

0.5

1

0 (initial status)

0 (initial status)

−

0.5

−

1

−

1.0

−

2

−

1.5

−

3

−

2.0

−

4

−

2.5

−

5

−

3.0

−

6

Work support items

Display

Defroster door position

Auto control

Manual control

BLOW SET

Mode1

OPEN

CLOSE

Mode2 (initial status)

OPEN

OPEN

Mode3

CLOSE

OPEN

Mode4

CLOSE

CLOSE

SYSTEM SETTING

HAC-69

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

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NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the discharge air mix ratio in FOOT mode may be cancelled. 

FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Inlet Port Memory Function 
(FRE)

INFOID:0000000006275898

DESCRIPTION

• If the ignition switch is turned to the OFF position while the intake switch is set to OFF (fresh air intake), “Per-

form the memory” or “Do not perform the memory” of intake switch OFF (fresh air intake) condition can be
selected. 

• If “Perform the memory” was set, the intake switch will be OFF (fresh air intake) when turning the ignition

switch to the ON position again. 

• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-

tion switch to the ON position again. 

HOW TO SET

With CONSULT-III

Perform the “FRE MEMORY SET” of HVAC work support item. 

NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the FRE memory function may be cancelled. 

FRONT AUTOMATIC AIR CONDITIONING SYSTEM : Inlet Port Memory Function 
(REC)

INFOID:0000000006275899

DESCRIPTION

• If the ignition switch is turned to the OFF position while the intake switch is set to ON (recirculation), “Per-

form the memory” or “Do not perform the memory” of intake switch ON (recirculation) condition can be
selected. 

• If “Perform the memory” was set, the intake switch will be ON (recirculation) when turning the ignition switch

to the ON position again. 

• If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-

tion switch to the ON position again. 

HOW TO SET

With CONSULT-III

Perform the “REC MEMORY SET” of HVAC work support item. 

NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the REC memory function may be cancelled. 

REAR AUTOMATIC AIR CONDITIONING SYSTEM

REAR AUTOMATIC AIR CONDITIONING SYSTEM : Temperature Setting Trimmer 
(Rear)

INFOID:0000000006275900

DESCRIPTION

Work support items

Display

Setting

FRE MEMORY SET

WITHOUT

Perform the memory of manual FRE

WITH (initial status)

Do not perform the memory of manual FRE (auto control)

Work support items

Display

Setting

REC MEMORY SET

WITHOUT (initial status)

Perform the memory of manual REC

WITH

Do not perform the memory of manual REC (auto control)

HAC-70

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

SYSTEM SETTING

If the temperature felt by the customer is different from the rear air flow temperature controlled by the temper-
ature setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature set-
ting. 

HOW TO SET

With CONSULT-III

Perform “REAR TEMP SET CORRECT” of HVAC work support item. 

NOTE:
• When 

−

3.0

°

C (

−

6

°

F) is corrected on the temperature setting set as 25.0

°

C (77

°

F) the temperature controlled

by A/C auto amp. is 25.0

°

C (77

°

F) 

−

3.0

°

C (

−

6

°

F) = 22.0

°

C (72

°

F) and the temperature becomes lower than

the temperature setting. 

• When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10

V or less, the setting of the difference between the set temperature and control temperature may be can-
celled. 

ACCS (ADVANCED CLIMATE CONTROL SYSTEM)

ACCS (ADVANCED CLIMATE CONTROL SYSTEM) : Exhaust Gas / Outside Odor 
Detecting Sensor Sensitivity Adjustment Function

INFOID:0000000006275901

DESCRIPTION

According to customer’s sense of smell, exhaust gas / outside odor detecting sensor sensitivity can be
changed.

HOW TO SET

With CONSULT-III

Perform the “GAS SENSOR ADJUSTMENT” of HVAC work support item. 

NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of WORK SUPPORT may be cancelled.

ACCS (ADVANCED CLIMATE CONTROL SYSTEM) : Auto Intake Switch Interlocking 

Work support items

Display (

°

C)

Display (

°

F)

REAR TEMP SET CORRECT

3.0

6

2.5

5

2.0

4

1.5

3

1.0

2

0.5

1

0 (initial status)

0 (initial status)

−

0.5

−

1

−

1.0

−

2

−

1.5

−

3

−

2.0

−

4

−

2.5

−

5

−

3.0

−

6

Work support items

Display

Setting

GAS SENSOR ADJUSTMENT

2

Less sensitive setting than display 1 (REC later than display 1.)

1

Less sensitive setting than normal setting (REC later than normal operation.)

0 (initial status)

Normal 

−

1

More sensitive setting than normal setting (REC earlier than normal operation.)

−

2

More sensitive setting than display 

−

1 (REC earlier than display 

−

1.)