Nissan Quest E52. Manual - part 737

HAC-78

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

OPERATION INSPECTION

2.

Check whether any DTC is detected.

Is any DTC detected?

YES

>> Perform the appropriate diagnosis for the detected DTC.

NO

>> Refer to 

HAC-134, "Symptom Table"

, and perform the appropriate diagnosis.

REAR AUTOMATIC AIR CONDITIONING SYSTEM

REAR AUTOMATIC AIR CONDITIONING SYSTEM : Work Procedure

INFOID:0000000009652538

DESCRIPTION

The purpose of the operational check is to check that the individual system operates normally. 
NOTE:
Check that front automatic air conditioning system operates normally. Refer to 

HAC-76, "FRONT AUTOMATIC

AIR CONDITIONING SYSTEM : Work Procedure"

.

OPERATION INSPECTION

Front A/C control operation

1.

CHECK REAR CONTROL MODE FUNCTION

1.

Press REAR switch. The REAR switch indicator turns ON.

2.

Check that front A/C control changes to the rear A/C control mode (“REAR” indicator on front A/C display
turns ON) and that rear automatic air conditioning system starts.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

3.

Press REAR switch again. The REAR switch indicator turns OFF.

4.

Check that “REAR” indicator on front A/C display turns OFF and rear control mode released.
(Rear automatic air conditioning system operates continuously)

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 8.

2.

CHECK REAR BLOWER MOTOR

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

Operate fan switch to check that fan speed changes.

3.

Check the operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 8.

3.

CHECK DISCHARGE AIR

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

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

3.

Operate MODE switch.

4.

Check that air outlets change according to each indicated air outlet by placing a hand in front of the out-
lets. Refer to 

VTL-7, "VENTILATION SYSTEM (REAR AIR CONDITIONING) : System Description"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 8.

Check condition

: Engine running at normal operating temperature.
: Front air conditioning system is in operation.

OPERATION INSPECTION

HAC-79

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

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4.

CHECK DISCHARGE AIR TEMPERATURE

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

Operate temperature control switch (driver side).

3.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 8.

5.

CHECK WITH TEMPERATURE SETTING LOWERED

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

Operate temperature control switch (driver side) to lower the set temperature to 18

°

C.

3.

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 8.

6.

CHECK TEMPERATURE INCREASE

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

Operate temperature control switch (driver side) to raise the set temperature to 32

°

C.

3.

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 8.

7.

CHECK AUTO MODE

1.

Press REAR switch and check that “REAR” indicator on front A/C display turns ON.
NOTE:
“REAR” indicator on front A/C control display turns OFF when any switch is not operated for approxi-
mately 10 seconds.

2.

Press AUTO switch and check that “AUTO” indicator on front A/C control display turns ON.

3.

Operate temperature control switch (driver side) to check that fan speed or air outlet changes (the air out-
let or fan speed varies depending on the ambient temperature, in-vehicle temperature (rear side), set tem-
perature, and etc.).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 8.

8.

CHECK SELF-DIAGNOSIS USING ON BOARD DIAGNOSIS SYSTEM

1.

Perform self-diagnosis using on board diagnosis.

2.

Check whether any malfunction is detected.

Is any malfunction detected?

YES

>> Perform the appropriate diagnosis for the detected malfunction.

NO

>> Refer to 

HAC-136, "Symptom Table"

, and perform the appropriate diagnosis.

Rear A/C control operation

1.

CHECK REAR BLOWER MOTOR

1.

Press AUTO switch and check that “AUTO” indicator on rear A/C control display turns ON.

2.

Operate fan switch to check that fan speed changes.

HAC-80

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

OPERATION INSPECTION

3.

Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 7.

2.

CHECK DISCHARGE AIR

1.

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

2.

Operate MODE switch.

3.

Check that air outlets change according to each indicated air outlet by placing a hand in front of the out-
lets. Refer to 

VTL-7, "VENTILATION SYSTEM (REAR AIR CONDITIONING) : System Description"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 7.

3.

CHECK DISCHARGE AIR TEMPERATURE

1.

Operate temperature control switch.

2.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 7.

4.

CHECK WITH TEMPERATURE SETTING LOWERED

1.

Operate temperature control switch to lower the set temperature to 18

°

C.

2.

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 7.

5.

CHECK TEMPERATURE INCREASE

1.

Operate temperature control switch to raise the set temperature to 32

°

C.

2.

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 7.

6.

CHECK AUTO MODE

1.

Press AUTO switch and check that “AUTO” indicator on rear A/C control display turns ON.

2.

Operate temperature control switch to check that fan speed or air outlet changes (the air outlet or fan
speed varies depending on the ambient temperature, in-vehicle temperature (rear side), set temperature,
and etc.).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 7.

7.

CHECK SELF-DIAGNOSIS USING ON BOARD DIAGNOSIS SYSTEM

1.

Perform self-diagnosis using on board diagnosis.

2.

Check whether any malfunction is detected.

Is any malfunction detected?

YES

>> Perform the appropriate diagnosis for the detected malfunction.

NO

>> Refer to 

HAC-136, "Symptom Table"

, and perform the appropriate diagnosis.

ACCS (ADVANCED CLIMATE CONTROL SYSTEM)

ACCS (ADVANCED CLIMATE CONTROL SYSTEM) : Work Procedure

INFOID:0000000009652539

DESCRIPTION

The purpose of the operational check is to check that the individual system operates normally.
NOTE:

OPERATION INSPECTION

HAC-81

< BASIC INSPECTION >

[AUTOMATIC AIR CONDITIONING]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Check that front automatic air conditioning system operates normally. Refer to 

HAC-76, "FRONT AUTOMATIC

AIR CONDITIONING SYSTEM : Work Procedure"

.

OPERATION INSPECTION

1.

CHECK PLASMACLUSTER

™

 ION

Check the ionizer operation sound (whirring sound) in the duct by putting an ear to the center ventilator grille
(driver side) outlet while pressing fan switch and OFF switch alternately.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK PLASMACLUSTER

™

 ION OPERATION STATUS

Operate fan switch and visually check that status indicator on front A/C control display changes in accordance
with the following table.

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.

Press AUTO intake switch and check that AUTO intake switch indicator turns ON.

2.

Listen to intake sound to check that the air inlet changes to recirculation.

3.

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

4.

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

5.

Check that the status indicator on front A/C control display turns ON and listen to intake sound to check
that air inlets change to recirculation.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 4.

4.

CHECK SELF-DIAGNOSIS USING ON BOARD DIAGNOSIS SYSTEM

1.

Perform self-diagnosis using on board diagnosis.

2.

Check whether any malfunction is detected.

Is any malfunction detected?

YES

>> Perform the appropriate diagnosis for the detected malfunction.

NO

>> Refer to 

HAC-137, "Symptom Table"

 and perform the appropriate diagnosis.

Check condition

: Engine running

Fan speed

Front A/C control display (ion indicator)

2nd

CLEAN

5th

QUICK CLEAN