Qashqai J11. Heater & Air conditioning Control System - part 12

MANUAL AIR CONDITIONER SYSTEM

HAC-177

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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JRIWC4097GB

HAC-178

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

MANUAL AIR CONDITIONER SYSTEM

JRIWC4098GB

MANUAL AIR CONDITIONER SYSTEM

HAC-179

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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JRIWC4099GB

HAC-180

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

MANUAL AIR CONDITIONER SYSTEM

JRIWC4100GB

MANUAL AIR CONDITIONER SYSTEM

HAC-181

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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JRIWC4101GB

HAC-182

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

MANUAL AIR CONDITIONER SYSTEM

JRIWC4102GB

MANUAL AIR CONDITIONER SYSTEM

HAC-183

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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JRIWC4103GB

HAC-184

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

MANUAL AIR CONDITIONER SYSTEM

JRIWC4104GB

MANUAL AIR CONDITIONER SYSTEM

HAC-185

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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JRIWC4105GB

HAC-186

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORK FLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Work Flow

INFOID:0000000010432521

OVERALL SEQUENCE

DETAILED FLOW

JMKIA8652GB

DIAGNOSIS AND REPAIR WORK FLOW

HAC-187

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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1.

GET INFORMATION FOR SYMPTOM

1.

Get detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurs).

2.

Check operation condition of the function that is malfunctioning.

>> GO TO 2.

2.

CHECK DTC

1.

Check DTC.

2.

Perform the following procedure if DTC is detected.

-

Record DTC and freeze frame data (Print them out using CONSULT.)

-

Erase DTC.

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.

3.

Check related service bulletins for information.

Are any symptoms described and any DTC detected?

Symptom is described, DTC is detected>>GO TO 3.
Symptom is described, DTC is not detected>>GO TO 4.
Symptom is not described, DTC is detected>>GO TO 5.

3.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Also study the normal operation and fail-safe related to the symptom.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5.

4.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.
Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6.

5.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC CONFIRMATION PROCEDURE for the detected DTC, and then check that DTC is detected
again. At this time, always connect CONSULT to the vehicle, and check self diagnostic results in real time.
If two or more DTCs are detected, refer to DTC INSPECTION PRIORITY CHART, and determine trouble diag-
nosis order.
NOTE:
• Freeze frame data is useful if the DTC is not detected.
• Perform Component Function Check if DTC CONFIRMATION PROCEDURE is not included on Service

Manual. This simplified check procedure is an effective alternative though DTC cannot be detected during
this check.
If the result of Component Function Check is NG, it is the same as the detection of DTC by DTC CONFIR-
MATION PROCEDURE.

Is DTC detected?

YES

>> GO TO 7.

NO

>> Check according to 

GI-44, "Intermittent Incident"

.

6.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM DIAGNOSIS

Detect malfunctioning system according to SYMPTOM DIAGNOSIS based on the confirmed symptom in step
4, and determine the trouble diagnosis order based on possible causes and symptom.

Is the symptom described?

YES

>> GO TO 7.

NO

>> Monitor input data from related sensors or check voltage of related module terminals using CON-

SULT.

7.

DETECT MALFUNCTIONING PART BY DIAGNOSIS PROCEDURE

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.

HAC-192

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

DOOR MOTOR STARTING POSITION RESET

DOOR MOTOR STARTING POSITION RESET

Description

INFOID:0000000010432527

• Step motors are used for the mode door motor air mix door motor, and intake door motor.
• Because the step motors do not have position detection mechanisms, there may be a deviation between the

door position recognized by A/C amp. and the actual door position.
Therefore, A/C amp. performs motor zero position reset for aligning its recognized door position with the
actual door position.

• The reset signal is transmitted from A/C amp. to the air mix door motor, mode door motor, and intake door

motor, which then perform zero position reset.

• After any of the following conditions is met, A/C amp. performs motor zero position reset when the ignition

switch is next turned ON.

- The ignition switch is turned from ON to OFF a total of 360 times.
- The ignition switch turns OFF while the mode door motor, air mix door motor, or intake door motor is operat-

ing.

• If A/C amp., air mix door motor, mode door motor, or intake door motor is removed, it is necessary to perform

motor zero position reset using CONSULT.

Work Procedure

INFOID:0000000010432528

1.

PERFORM DOOR MOTOR STARTING POSITION RESET

With CONSULT

1.

Turn ignition switch ON.

2.

Select “Door Motor Starting Position Reset” in “WORK SUPPORT” mode of “HVAC” using CONSULT.

3.

Touch “Start” and wait 10 seconds.

4.

Make sure the “COMPLETED” is displayed on CONSULT screen.

>> INSPECTION END