Nissan Quest E52. Manual - part 766

HAC-194

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

OPERATION INSPECTION

OPERATION INSPECTION

FRONT MANUAL AIR CONDITIONING SYSTEM

FRONT MANUAL AIR CONDITIONING SYSTEM : Work Procedure

INFOID:0000000009652645

DESCRIPTION

The purpose of the operation inspection is to check that the individual system operates normally. 

OPERATION INSPECTION

1.

CHECK MEMORY FUNCTION

1.

Press fan switch to activate front A/C system.

2.

Operating temperature control switch to full hot position.

3.

Press ON·OFF switch.

4.

Turn ignition switch OFF.

5.

Turn ignition switch ON.

6.

Press fan switch.

7.

Check that the air flow temperature position (full hot) is maintained.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 9.

2.

CHECK FRONT BLOWER MOTOR

1.

Start engine.

2.

Operate fan switch and check that fan speed changes.

3.

Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 9.

3.

CHECK DISCHARGE AIR (MODE SWITCH AND DEF SWITCH)

1.

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

2.

Operate MODE switch and DEF 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-6, "VENTILATION SYSTEM (FRONT AIR CONDITIONING) : System Description"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 9.

4.

CHECK INTAKE AIR

1.

Press REC switch to set the air inlet to recirculation. The REC switch indicator turns ON.

2.

Listen to intake sound and confirm air inlets change.

3.

Press FRE switch again to set the air inlet to fresh air intake. The FRE switch indicator turns OFF.

4.

Listen to intake sound and confirm air inlets change.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 9.

5.

CHECK COMPRESSOR

1.

Press A/C switch. The A/C switch indicator is turns ON.

2.

Check visually and by sound that the compressor operates.

3.

Press A/C switch again. The A/C switch indicator is turns OFF.

4.

Check that compressor stops.

Is the inspection result normal?

YES

>> GO TO 6.

Check condition

: Engine running at normal operating temperature.

OPERATION INSPECTION

HAC-195

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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NO

>> GO TO 9.

6.

CHECK DISCHARGE AIR TEMPERATURE

1.

Operate temperature control switch.

2.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 9.

7.

CHECK TEMPERATURE SETTING DECREASE

1.

Operate compressor.

2.

Operate temperature control switch to full cold position.

3.

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 9.

8.

CHECK TEMPERATURE INCREASE

1.

Warm up engine to the normal operating temperature.

2.

Operate temperature control switch to full hot position.

3.

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 9.

9.

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

>> GO TO 10.

10.

CHECK SELF-DIAGNOSIS USING WITH CONSULT

1.

Perform self-diagnosis with CONSULT.

2.

Check that any DTC is detected.

Is any DTC detected?

YES

>> Perform trouble diagnosis for the detected DTC.

NO

>> Refer to 

HAC-229, "Symptom Table"

, and perform the appropriate diagnosis.

REAR MANUAL AIR CONDITIONING SYSTEM

REAR MANUAL AIR CONDITIONING SYSTEM : Work Procedure

INFOID:0000000009652646

DESCRIPTION

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

HAC-194, "FRONT MANUAL 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.

Check condition

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

HAC-196

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

OPERATION INSPECTION

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 manual 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 manual air conditioning system operates continuously)

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 7.

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 7.

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 7.

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.

3.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 7.

5.

CHECK TEMPERATURE DECREASE

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 to full cold position.

3.

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 7.

6.

CHECK TEMPERATURE INCREASE

OPERATION INSPECTION

HAC-197

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

C

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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 to full hot position.

3.

Check that warm air blows from the air outlets.

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-231, "Symptom Table"

, and perform the appropriate diagnosis.

Rear A/C control operation

1.

CHECK REAR BLOWER MOTOR

1.

Operate fan switch to check that fan speed changes.

2.

Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 6.

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 6.

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 6.

4.

CHECK TEMPERATURE DECREASE

1.

Operate temperature control switch to full cold position.

2.

Check that cool air blows from the air outlets.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

CHECK TEMPERATURE INCREASE

1.

Operate temperature control switch to full hot position.

2.

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 6.

6.

CHECK SELF-DIAGNOSIS USING ON BOARD DIAGNOSIS SYSTEM

1.

Perform self-diagnosis using on board diagnosis.