Nissan Qashqai J11. Manual - part 1138

HAC-188

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORK FLOW

Inspect according to Diagnosis Procedure of the system.

Is malfunctioning part detected?

YES

>> GO TO 8.

NO

>> Check according to 

GI-44, "Intermittent Incident"

.

8.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1.

Repair or replace the malfunctioning part.

2.

Reconnect parts or connectors disconnected during Diagnosis Procedure again after repair and replace-
ment.

3.

Check DTC. If DTC is detected, erase it.

>> GO TO 9.

9.

FINAL CHECK

When DTC is detected in step 2, perform DTC CONFIRMATION PROCEDURE again, and then check that the
malfunction is repaired securely.
When symptom is described by the customer, refer to confirmed symptom in step 3 or 4, and check that the
symptom is not detected.

Is DTC detected and does symptom remain?

YES-1 >> DTC is detected: GO TO 7.
YES-2 >> Symptom remains: GO TO 4.
NO

>> Before returning the vehicle to the customer, always erase DTC.

OPERATION INSPECTION

HAC-189

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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OPERATION INSPECTION

Work Procedure

INFOID:0000000010432522

DESCRIPTION

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

OPERATION INSPECTION

1.

CHECK FAN SPEED

1.

Start engine.

2.

Operate fan control dial and check that fan speed changes.

3.

Check operation for all fan speeds.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 8.

2.

CHECK AIR OUTLET

1.

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

2.

Operate MODE VENT/FOOT/DEF switch and MAX DEF switch (for Europe and Russia), or VENT, B/L,
FOOT, D/F and DEF switch (except for Europe and Russia).

3.

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

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 8.

3.

CHECK AIR INLET

1.

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

2.

Listen to intake sound and confirm air inlets change.

3.

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

4.

Listen to intake sound and confirm air inlets change.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 8.

4.

CHECK COMPRESSOR

1.

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

2.

Check visually and by sound that the compressor operates.

3.

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

4.

Check that compressor stops.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 8.

5.

CHECK DISCHARGE AIR TEMPERATURE

1.

Operate temperature control dial.

2.

Check that discharge air temperature changes.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 8.

6.

CHECK WITH TEMPERATURE SETTING LOWERED

1.

Operate compressor.

2.

Operate temperature control dial to lower the set to full cold.

3.

Check that cool air blows from the air outlets.

Check condition

: Engine running at normal operating temperature.

HAC-190

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

OPERATION INSPECTION

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 8.

7.

CHECK TEMPERATURE INCREASE

1.

Warm up engine to the normal operating temperature.

2.

Operate temperature control dial to raise the set to full hot.

3.

Check that warm air blows from the air outlets.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 8.

8.

CHECK SELF-DIAGNOSIS WITH CONSULT

1.

Perform self-diagnosis with CONSULT.

2.

Check that any DTC is detected.

Is any DTC detected?

YES

>> Refer to 

HAC-256, "DTC Index"

, and perform the appropriate diagnosis.

NO

>> Refer to 

HAC-293, "Symptom Table"

, and perform the appropriate diagnosis.

SYSTEM SETTING

HAC-191

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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SYSTEM SETTING

Setting of Target Evaporator Temperature Upper Limit Value

INFOID:0000000010432526

DESCRIPTION

Setting of upper limit value of target evaporator temperature can be changed. Control characteristic of com-
pressor control (refrigerant discharge amount control) changes according to change of the setting, and then
operation ratio of compressor and refrigerant discharge amount are changed. According to change of the set-
ting, control characteristic focusing on the fuel consumption can be adjusted to control characteristic focusing
on the cooling capacity.

HOW TO SET

With CONSULT

Perform “TARGET EVAPORATOR TEMP UPPER LIMIT SETTING” in “WORK SUPPORT” mode of “HVAC”
using CONSULT.

NOTE:
• A/C amp. stores the setting at the time 1 minute after the ignition switch turns OFF.
• When the battery cable is disconnected from the negative terminal or when the battery voltage is 10 V or

less, the setting for the difference between the set temperature and control temperature is set to the value
stored 1 minute after most recent ignition switch OFF status.

Work support items

Display

Setting

TARGET EVAPORATOR TEMP UPPER 
LIMIT SETTING

Initial setting

Initial setting

High

Setting 1

Middle

Setting 2

Low

Setting 3

Setting

Target evapora-

tor temperature 

upper limit value

Evaporator freezing protection control

Refrigerant discharge amount control

Initial set-

ting

12

°

C (54

°

F)

Initial setting

Initial setting

Setting 1

7

°

C (45

°

F)

Operation ratio of compressor increases from ini-

tial setting.

Refrigerant discharge amount increases from 

initial setting.

Setting 2

5

°

C (41

°

F)

Operation ratio of compressor increases from ini-

tial setting 1.

Refrigerant discharge amount increases from 

initial setting 1.

Setting 3

3

°

C (37

°

F)

Operation ratio of compressor increases from 

setting 2.

Refrigerant discharge amount increases from 

setting 2.