Qashqai J11. Heater & Air conditioning Control System - part 15

 

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Qashqai J11. Heater & Air conditioning Control System - part 15

 

 

COMPRESSOR DOES NOT OPERATE

HAC-225

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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COMPRESSOR DOES NOT OPERATE

Description

INFOID:0000000010432578

SYMPTOM

Compressor does not operate. 

Diagnosis Procedure

INFOID:0000000010432579

NOTE:
• Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-

form the corresponding diagnosis.

• Check that refrigerant is enclosed in cooler cycle normally. If refrigerant amount is shortage from proper

amount, perform the inspection of refrigerant leakage.

1.

CHECK MAGNET CLUTCH OPERATION

Check magnet clutch. Refer to 

HAC-213, "Component Function Check"

Does it operate normally?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to 

ECH-228, "Diagnosis Procedure"

 (HRA2DDT engine models),

ECM-591, "Diagnosis Procedure"

 (MR16DDT engine models), 

ECM-1007, "Diagnosis Procedure"

 (MR20DD

engine models), 

ECK-257, "Diagnosis Procedure"

 (K9K engine models) or 

EC9-246, "Diagnosis Procedure"

(R9M engine models).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning parts.

3.

CHECK BCM OUTPUT SIGNAL

With CONSULT-

1.

Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

2.

Select “AIR COND SIG” and “HEATER FAN SW”, and check status under the following conditions.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-68, "Removal and Installation"

.

NO

>> Replace A/C amp. Refer to 

BCS-135, "Removal and Installation"

.

Monitor item

Condition

Status

AIR COND SIG

A/C switch

OFF (A/C indicator: OFF)

Off

ON (A/C indicator: ON)

On

HEATER FAN SW

Blower motor

OFF

Off

ON

On

HAC-226

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

A/C CONTROL (A/C AUTO AMP.)

REMOVAL AND INSTALLATION

A/C CONTROL (A/C AUTO AMP.)

Exploded View

INFOID:0000000010432580

Refer to 

IP-12, "Exploded View"

.

Removal and Installation

INFOID:0000000010432581

REMOVAL

1.

Disengage fixing metal clips and pawls, and then remove A/C
control from instrument panel assembly according to numerical
order 1

2 indicated by arrows as shown in the figure.

2.

Disconnect harness connectors.

INSTALLATION

Install in the reverse order of removal.

: Pawl

: Metal clip

JMIIA3390ZZ

AMBIENT SENSOR

HAC-227

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

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AMBIENT SENSOR

Removal and Installation

INFOID:0000000010432583

REMOVAL

1.

Remove front bumper fascia assembly. Refer to 

EXT-20, "Removal and Installation"

.

2.

Disconnect harness connector 

.

3.

Disengage fixing pawl, and then remove ambient sensor.

INSTALLATION

Install in the reverse order of removal.

: Pawl

JMIIA3393ZZ

HAC-228

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

INTAKE SENSOR

INTAKE SENSOR

Exploded View

INFOID:0000000010432586

Refer to 

HA-40, "Exploded View"

.

Removal and Installation

INFOID:0000000010432587

REMOVAL

1.

Remove instrument lower cover LH. Refer to 

IP-19, "Removal and Installation"

.

2.

Remove intake sensor from A/C unit assembly.

3.

Disconnect harness connector from intake sensor.

CAUTION:

If disconnect harness connector from intake sensor, replace intake sensor with new one.

INSTALLATION

Note the following item, and then install in the order of removal.

CAUTION:

If disconnect harness connector from intake sensor, replace intake sensor with new one.

REFRIGERANT PRESSURE SENSOR

HAC-229

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

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REFRIGERANT PRESSURE SENSOR

Exploded View

INFOID:0000000010432588

Refer to 

HA-33, "Exploded View"

 (HRA2DDT engine models), 

HA-77, "Exploded View"

 (K9K engine models)

or 

HA-124, "Exploded View"

 (R9M engine models).

Removal and Installation

INFOID:0000000010432589

REMOVAL

Refer to 

HA-37, "REFRIGERANT PRESSURE SENSOR : Removal and Installation"

 (HRA2DDT engine mod-

els), 

HA-81, "REFRIGERANT PRESSURE SENSOR : Removal and Installation"

 (K9K engine models) or 

HA-

129, "REFRIGERANT PRESSURE SENSOR : Removal and Installation"

 (R9M engine models).

INSTALLATION

Install in the reverse order of removal.

HAC-230

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

PTC HEATER

PTC HEATER

Removal and Installation

INFOID:0000000010500716

REMOVAL

1.

Remove instrument lower cover RH (RHD models) or glove box cover (LHD models). Refer to 

IP-13,

"Removal and Installation"

.

2.

Disconnect PTC heater connector.

3.

Remove fixing screws 

, and then remove PTC heater from A/

C unit assembly.

INSTALLATION

Install in the reverse order of removal.

JMIIA3532ZZ

FAN CONTROL AMPLIFIER

HAC-231

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

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FAN CONTROL AMPLIFIER

Exploded View

INFOID:0000000010432590

Refer to 

HA-40, "Exploded View"

.

Removal and Installation

INFOID:0000000010432591

REMOVAL

1.

Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to 

IP-13,

"Removal and Installation"

.

2.

Disconnect power transistor harness connector.

3.

Remove fixing screws 

, and then remove fan control amplifier.

INSTALLATION

Install in the reverse order of removal.

JMIIA3400ZZ

HAC-232

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

DOOR MOTOR

DOOR MOTOR

Exploded View

INFOID:0000000010432592

LEFT SIDE

RIGHT SIDE

A/C unit assembly

Intake door lever

Intake door link

Intake door motor

Air mix door motor LH

JMIIA3368GB

DOOR MOTOR

HAC-233

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

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AIR MIX DOOR MOTOR

AIR MIX DOOR MOTOR : Removal and Installation

INFOID:0000000010432593

REMOVAL

Air Mix Door Motor LH

1.

Set the temperature at 18

°

C (64

°

F).

CAUTION:

Always perform the above procedure when removing air mix door motor. Otherwise, air mix door
may interfere in A/C unit assembly may be damaged.

2.

Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to 

IP-13,

"Removal and Installation"

.

3.

Remove foot duct LH. Refer to 

VTL-14, "FOOT DUCT : Removal and Installation"

.

4.

Disconnect air mix door motor harness connector.

5.

Remove fixing screws 

, and then remove air mix door motor

LH.

A/C unit assembly

Side ventilator door lever

Foot door link

Foot door link

Main link

Mode door link

Mode door motor

JMIIA3531ZZ

JMIIA3395ZZ

HAC-234

< REMOVAL AND INSTALLATION >

[MANUAL AIR CONDITIONING]

DOOR MOTOR

INSTALLATION

Note the following item, and then install in the reverse order of removal.

CAUTION:

After installing door motor, perform door motor starting position. Refer to 

HAC-272, "Work Proce-

dure"

.

INTAKE DOOR MOTOR

INTAKE DOOR MOTOR : Removal and Installation

INFOID:0000000010432594

REMOVAL

1.

Remove instrument lower panel LH (LHD models) or glove box cover (RHD models). Refer to 

IP-13,

"Removal and Installation"

.

2.

Disconnect intake door motor harness connector. 

3.

Remove fixing screws 

, and then remove intake door motor.

INSTALLATION

Install in the reverse order of removal.

MODE DOOR MOTOR

MODE DOOR MOTOR : Removal and Installation

INFOID:0000000010432595

REMOVAL

1.

Remove instrument lower panel RH (RHD models) or glove box cover (LHD models). Refer to 

IP-13,

"Removal and Installation"

.

2.

Remove foot duct RH. Refer to 

VTL-14, "FOOT DUCT : Removal and Installation"

.

3.

Disconnect mode door motor harness connector. 

4.

Remove fixing screws 

, mode door motor.

INSTALLATION

Note the following item, and then install in the reverse order of removal.

CAUTION:

After installing door motor, perform door motor starting position. Refer to 

HAC-272, "Work Proce-

dure"

.

JMIIA3394ZZ

JMIIA3396ZZ

PRECAUTIONS

HAC-235

< PRECAUTION >

[MANUAL HEATER ]

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000010433386

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precautions for Removing Battery Terminal

INFOID:0000000010521164

• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key

or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.

• When disconnecting the 12V battery terminal, turn off the ACC

power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.

•  For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.

•  After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

HOW TO DISCONNECT 12V BATTERY TERMINAL

Disconnect 12V battery terminal according to instruction described below.
1.

Open the hood.

2.

Turn ignition switch to the ON position.

3.

Turn ignition switch to the OFF position with the driver side door opened.

4.

Get out of the vehicle and close the driver side door.

SEF289H

HAC-236

< PRECAUTION >

[MANUAL HEATER ]

PRECAUTIONS

5.

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

6.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

COMPONENT PARTS

HAC-237

< SYSTEM DESCRIPTION >

[MANUAL HEATER ]

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SYSTEM DESCRIPTION

COMPONENT PARTS

MANUAL HEATER SYSTEM

MANUAL HEATER SYSTEM : Component Parts Location

INFOID:0000000010433388

Left side of A/C unit assembly

Right side of A/C unit assembly

JMIIA3543ZZ

HAC-238

< SYSTEM DESCRIPTION >

[MANUAL HEATER ]

COMPONENT PARTS

PTC HEATER CONTROL SYSTEM

No.

Component

Function

Ambient sensor

HAC-243, "Ambient Sensor"

ECM

ECM transmits engine coolant temperature signal to A/C amp. via CAN com-
munication line.
Refer to 

ECH-13, "Component Parts Location"

 (HR engine models), 

ECK-

12, "Component Parts Location"

 (K9K engine models) or 

EC9-14, "Compo-

nent Parts Location"

 (R9M engine models) for detailed installation location.

Combination meter

Combination meter transmits ambient temperate signal and vehicle speed 
signal to A/C amp. via CAN communication line.

Heater control (A/C amp.)

HAC-242, "Heater Control (A/C Amp.)"

Fan control amp.

HAC-242, "A/C UNIT ASSEMBLY : Fan Control Amp."

Air mix door motor

HAC-240, "A/C UNIT ASSEMBLY : Air Mix Door Motor"

Intake door motor

HAC-241, "A/C UNIT ASSEMBLY : Intake Door Motor"

Mode door motor

HAC-240, "A/C UNIT ASSEMBLY : Mode Door Motor"

Blower motor

HAC-241, "A/C UNIT ASSEMBLY : Blower Motor"

COMPONENT PARTS

HAC-239

< SYSTEM DESCRIPTION >

[MANUAL HEATER ]

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PTC HEATER CONTROL SYSTEM : Component Parts Location

INFOID:0000000010499401

Right side of A/C unit assembly

JMIIA3547ZZ

No.

Component

Function

Ambient sensor

HAC-243, "Ambient Sensor"

PTC relay-1/2/3

PTC relay is controlled by BCM, and supplies power supply to PTC heater.

HAC-240

< SYSTEM DESCRIPTION >

[MANUAL HEATER ]

COMPONENT PARTS

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Air Mix Door Motor

INFOID:0000000010499402

DESCRIPTION

• The step motor system is adopted for air mix door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates

according to the drive signal, and then stops at the target door position.

• Rotation of motor is transmitted to air mix door by link and lever, then air flow temperature is switched.

AIR MIX DOOR MOTOR DRIVE METHOD

• The 4 drive coils are excited in sequence in order to drive the motor.
• Direction of rotation is changeable by recomposing pattern of excitation.

A/C UNIT ASSEMBLY : Mode Door Motor

INFOID:0000000010499403

DESCRIPTION

• The step motor system is adopted for mode door motor.
• When a drive signal is input from A/C amp. to door motor, a step motor built into the door motor rotates

according to the drive signal, and then stops at the target door position.

• Rotation of motor is transmitted to mode door (center ventilator and defroster door, sub defroster door, side

ventilator door, and foot door) by link, rod, and lever, then air outlet is switched.

MODE DOOR MOTOR DRIVE METHOD

• The 4 drive coils are excited in sequence in order to drive the motor.

ECM

ECM transmits engine speed signal, engine coolant temperature signal, 
cooling fan speed request signal, and electrical power cut freeze signal to 
BCM via CAN communication line.
Refer to 

ECH-13, "Component Parts Location"

 (HR engine models), 

ECK-12, 

"Component Parts Location"

 (K9K engine models) or 

EC9-14, "Component 

Parts Location"

 (R9M engine models) for detailed installation location.

Combination meter

Combination meter transmits ambient temperature signal to BCM via CAN 
communication line.

BCM

BCM receives each signals, and controls PTC relay.
BCM transmits idle up signal to ECM according to electrical load condition.
Refer to 

BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"

 

for detailed installation location.

PTC heater

HAC-242, "A/C UNIT ASSEMBLY : PTC Heater"

Blower motor

HAC-241, "A/C UNIT ASSEMBLY : Blower Motor"

No.

Component

Function

JMIIA3574GB

 

 

 

 

 

 

 

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