Nissan Murano Z50 (2004 year). Manual - part 2

ADJUSTABLE PEDAL SYSTEM

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4. 

CHECK BCM OUTPUT POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check voltage between BCM connector M35 terminal 54 (W/R)
and ground.

OK or NG

OK

>> BCM power supply and ground circuit are OK.

NG

>> Replace BCM.

PEDAL ADJUSTING CONTROL UNIT IGNITION SIGNAL INSPECTION

1. 

CHECK FUSE

1.

Turn ignition switch OFF.

2.

Check 10A fuse [No. 12, located in fuse block (J/B)]

NOTE:
Refer to 

AP-4, "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION"

  .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

  .

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT IGNITION POWER SUPPLY CIRCUIT

1.

Disconnect pedal adjusting control unit connector.

2.

Turn ignition switch ON.

3.

Check voltage between pedal adjusting control unit connector
and ground.

OK or NG

OK

>> Pedal adjusting control unit ignition signal is OK.

NG

>> Repair or replace the harness between pedal adjusting control unit and fuse block (J/B).

54 (W/R) - Ground

: Battery voltage

PIIB0883E

Connector

Terminal (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(-)

M88

4(G)

Ground

Turn ignition switch ON

Battery voltage

Turn ignition switch OFF

0

PIIA7660E

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PEDAL ADJUSTING CONTROL UNIT POWER SUPPLY AND GROUND INSPECTION

1. 

CHECK PEDAL ADJUSTING CONTROL UNIT POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect pedal adjusting control unit connector.

3.

Check voltage between pedal adjusting control unit connector
M88 terminal 5 (W/R) and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace the harness between pedal adjusting

control unit and BCM.

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT GROUND CIRCUIT

Check continuity between pedal adjusting control unit connector
M88 terminal 1 (B) and ground.

OK or NG

OK >> GO 

TO 

2.

NG

>> Repair or replace harness between pedal adjusting con-

trol unit and ground.

3. 

CHECK PEDAL ADJUSTING CONTROL UNIT OUTPUT POWER SUPPLY

1.

Connect pedal adjusting control unit connector.

2.

Check voltage between pedal adjusting control unit connector
M88 terminal 7 (R) and ground.

OK or NG

OK

>> Pedal adjusting control unit power supply and ground is

OK.

NG

>> Replace pedal adjusting control unit.

5 (W/R) - Ground

: Battery voltage

PIIA7662E

1 (B) - Ground

: Continuity should exist.

PIIA7663E

7 (R) - Ground

: Battery voltage

PIIA7661E

ADJUSTABLE PEDAL SYSTEM

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KEY SWITCH AND CVT DEVICE CIRCUIT INSPECTION

1. 

CHECK FUSE

Check 10A fuse [No. 21, located in fuse block (J/B)]

NOTE:
Refer to 

AP-4, "COMPONENT PARTS AND HARNESS CONNECTOR LOCATION"

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OK or NG

OK

>> GO TO 2.

NG 

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

  .

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT INPUT SIGNAL

1.

Disconnect pedal adjusting control unit connector.

2.

Key is inserted in ignition key cylinder.

3.

Check voltage between pedal adjusting control unit connector
and ground.

OK or NG

OK

>> Key switch and CVT device circuit is OK.

NG

>> GO TO 3.

3. 

CHECK KEY SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Key is removed from ignition key cylinder.

3.

Check voltage between key switch and key lock solenoid con-
nector M28 terminal 3 (Y/R) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between key switch and key

lock solenoid and fuse.

4. 

CHECK KEY SWITCH

Check continuity between key switch and key lock solenoid (key
switch) as follows.

OK or NG

OK

>> GO TO 5.

NG

>> Replace key switch and key lock solenoid.

Connector

Terminal (Wire color)

Condition

Voltage (V) (Approx.)

(+)

(-)

M88

3 (L)

Ground

P-position

0

Other than P-position.

Battery voltage

PIIA7664E

3 (Y/R) - Ground

: Battery voltage.

PIIA3286E

Terminals

Condition

Continuity

3

4

Key is inserted in ignition key cylinder.

Yes

Key is removed from ignition key cylinder.

No

PIIA3044E

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5. 

CHECK CVT DEVICE POWER SUPPLY CIRCUIT

1.

Disconnect CVT device connector.

2.

Connect key switch and key lock solenoid connector.

3.

Key is inserted in ignition key cylinder.

4.

Check voltage between CVT device connector M57 terminal 5
(B/R) and ground.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6. 

CHECK CVT DEVICE HARNESS

1.

Key is removed from ignition key cylinder.

2.

 Disconnect key switch and key lock solenoid connector.

3.

Check continuity between CVT device connector M57 terminal 5
(B/R) and key switch and key lock solenoid (key switch) connec-
tor M28 terminal 4 (B/R).

4.

Check continuity between CVT device connector M57 terminal 5
(B/R) and ground.

OK or NG

OK 

>> Check the condition the harness and connector.

NG

>> Repair or replace harness between key switch and key lock solenoid and CVT device connector.

7. 

CHECK CVT DEVICE

Check continuity between CVT device as follows.

OK or NG

OK

>> GO TO 8.

NG

>> Replace CVT device.

5 (B/R) - Ground

: Battery voltage.

PIIA8451E

5 (B/R) - 4 (B/R)

: Continuity should exist.

5 (B/R) - Ground

: Continuity should not exist.

PIIA4565E

Terminals

Condition

Continuity

5

6

P-position.

Continuity should not exist.

Other than P-position.

Continuity should exist.

PIIA4566E

ADJUSTABLE PEDAL SYSTEM

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8. 

CHECK PEDAL ADJUSTING CONTROL UNIT HARNESS 

1.

Disconnect pedal adjusting control unit connector.

2.

Connect key switch and key lock solenoid connector.

3.

Check voltage between CVT device connector M57 terminal 6
(L) and pedal adjusting control unit connector M88 terminal 3
(L).

4.

Check voltage between CVT device connector M57 terminal 6
(L) and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between CVT device and pedal adjusting control unit.

6 (L) - 3 (L)

: Continuity should exist.

6 (L) - Ground

: Continuity should not exist.

PIIA8452E

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ADJUSTABLE PEDAL SYSTEM

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PEDAL ADJUSTING SWITCH POWER SUPPLY AND GROUND INSPECTION

1. 

CHECK PEDAL ADJUSTING SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect pedal adjusting switch connector.

3.

Check voltage between pedal adjusting switch connector B306
terminal 64 (GY) and ground.

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

CHECK PEDAL ADJUSTING SWITCH HARNESS

1.

Disconnect pedal adjusting control unit connector.

2.

Check continuity between pedal adjusting control unit connector
M88 terminal 7 (R) and pedal adjusting switch connector B306
terminal 64 (GY).

3.

Check continuity between pedal adjusting control unit connector
M88 terminal 7 (R) and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between pedal adjusting control unit and pedal adjusting switch.

3. 

CHECK PEDAL ADJUSTING SWITCH GROUND CIRCUIT INSPECTION

Check continuity pedal adjusting switch connector B306 terminal
48C (B) and ground.

OK or NG

OK

>> Pedal adjusting switch power supply and ground circuit

is OK.

NG

>> Repair or replace the harness between pedal adjusting

switch and ground.

64 (GY) - Ground

: Battery voltage.

PIIA7666E

7 (R) - 64 (GY)

: Continuity should exist.

7 (R) - Ground

: Continuity should not exist.

PIIA7667E

48C (B) - Ground

: Continuity should exist.

PIIA7668E

ADJUSTABLE PEDAL SYSTEM

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PEDAL ADJUSTING MOTOR CIRCUIT INSPECTION

1. 

CHECK PEDAL ADJUSTING SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect pedal adjusting switch connector.

3.

Check continuity between pedal adjusting switch as follows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace pedal adjusting switch.

2. 

CHECK PEDAL ADJUSTING MOTOR HARNESS

1.

Disconnect pedal adjusting motor connector.

2.

Check continuity between pedal adjusting switch connector
B306 terminal 15 (G/W), 30 (L/W) and pedal adjusting motor
connector E113 terminal 1 (L/Y), 2 (L/R).

3.

Check continuity between pedal adjusting switch connector
B306 terminal 15 (G/W), 30 (L/W) and ground.

OK or NG

OK

>> Pedal adjusting motor circuit is OK.

NG

>> Repair or replace harness between pedal adjusting switch and pedal adjusting motor.

Terminals

Condition

Continuity

30

64

pedal adjusting switch forward.

Continuity should exist.

pedal adjusting switch neutral.

Continuity should not exist.

48C

pedal adjusting switch backward.

Continuity should exist.

pedal adjusting switch neutral.

Continuity should not exist

15

64

pedal adjusting switch backward.

Continuity should exist.

pedal adjusting switch neutral.

Continuity should not exist.

48C

pedal adjusting switch forward.

Continuity should exist.

pedal adjusting switch neutral.

Continuity should not exist.

PIIA7669E

15 (G/W) - 1 (L/Y)

: Continuity should exist.

30 (L/W) - 2 (L/R)

: Continuity should exist.

15 (G/W) - Ground

: Continuity should not exist.

30 (L/W) - Ground

: Continuity should not exist.

PIIA7670E

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ADJUSTABLE PEDAL SYSTEM

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CVT DEVICE CIRCUIT INSPECTION

1. 

CHECK CVT DEVICE

1.

Turn ignition switch OFF.

2.

Disconnect CVT device connector.

3.

Check continuity between CVT device as follows.

OK or NG

OK

>> GO TO 2.

NG

>> Replace CVT device.

2. 

CHECK PEDAL ADJUSTING CONTROL UNIT HARNESS

1.

Disconnect pedal adjusting control unit connector.

2.

Connect key switch connector and key lock solenoid connector.

3.

Check voltage between CVT device connector M57 terminal 6
(L) and ground.

OK or NG

OK

>> Replace pedal adjusting control unit.

NG

>> Repair or replace harness between CVT device and

pedal adjusting control unit.

Removal and Installation

AIS004VZ

Refer to 

BR-8, "Removal and Installation"

 .

Terminals

Condition

Continuity

5

6

P-position.

Continuity should not exist.

Other than P-position.

Continuity should exist.

PIIA4566E

6 (L) - Ground

: Continuity should not exist.

PIIA7671E

ATC-1

AUTOMATIC AIR CONDITIONER

J  AIR CONDITIONER

CONTENTS

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AUTOMATIC AIR CONDITIONER

PRECAUTIONS .......................................................... 5

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions for Working with HFC-134a (R-134a) 

..... 6

CONTAMINATED REFRIGERANT  ....................... 6

General Refrigerant Precautions .............................. 7
Lubricant Precautions  .............................................. 7
Precautions for Refrigerant Connection  ................... 8

ABOUT ONE-TOUCH JOINT ................................ 8
FEATURES OF NEW TYPE REFRIGERANT 
CONNECTION .................................................... 10
O-RING AND REFRIGERANT CONNECTION ....11

Precautions for Servicing Compressor ................... 13
Precautions for Service Equipment  ........................ 13

RECOVERY / RECYCLING EQUIPMENT .......... 13
ELECTRONIC LEAK DETECTOR  ...................... 13
VACUUM PUMP  ................................................. 13
MANIFOLD GAUGE SET .................................... 13
SERVICE HOSES  ............................................... 14
SERVICE COUPLERS ........................................ 14
REFRIGERANT WEIGHT SCALE  ...................... 14
CHARGING CYLINDER ...................................... 14

Precautions for Leak Detection Dye ....................... 15

IDENTIFICATION ................................................ 15
IDENTIFICATION LABEL FOR VEHICLE ........... 15

Wiring Diagrams and Trouble Diagnosis ................ 15

PREPARATION ......................................................... 16

Special Service Tools  ............................................. 16
HFC-134a (R-134a) Service Tools and Equipment 

... 17

Commercial Service Tools ...................................... 19

REFRIGERATION SYSTEM  ..................................... 20

Refrigerant Cycle  ................................................... 20

REFRIGERANT FLOW  ....................................... 20
FREEZE PROTECTION  ..................................... 20

Refrigerant System Protection  ............................... 20

REFRIGERANT PRESSURE SENSOR  ............. 20
PRESSURE RELIEF VALVE ............................... 20

Component Layout ................................................. 21

LUBRICANT .............................................................. 22

Maintenance of Lubricant Quantity in Compressor ... 22

LUBRICANT ........................................................ 22
LUBRICANT RETURN OPERATION  .................. 22
LUBRICANT ADJUSTING PROCEDURE FOR 
COMPONENTS REPLACEMENT EXCEPT 
COMPRESSOR .................................................. 23
LUBRICANT ADJUSTING PROCEDURE FOR 
COMPRESSOR REPLACEMENT ....................... 23

AIR CONDITIONER CONTROL  ............................... 25

Description of Air Conditioner LAN Control System ... 25
System Construction  .............................................. 25

OPERATION ........................................................ 25
TRANSMISSION DATA AND TRANSMISSION 
ORDER ............................................................... 26
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL)  ..................................... 27
FAN SPEED CONTROL ...................................... 27
INTAKE DOOR CONTROL  ................................. 27
OUTLET DOOR CONTROL  ................................ 27
MAGNET CLUTCH CONTROL  ........................... 27
SELF-DIAGNOSTIC SYSTEM  ............................ 27

Description of Control System  ................................ 28
Control Operation  ................................................... 28

DISPLAY SCREEN .............................................. 29
AUTO SWITCH  ................................................... 29
TEMPERATURE DIAL (POTENTIO TEMPERA-
TURE CONTROL) (DRIVER SIDE) ..................... 29
TEMPERATURE DIAL (POTENTIO TEMPERA-
TURE CONTROL) (PASSENGER SIDE)  ............ 29
RECIRCULATION (REC) SWITCH  ..................... 29
FRESH (FRE) SWITCH  ...................................... 29
DEFROSTER (DEF) SWITCH ............................. 29
REAR WINDOW DEFOGGER SWITCH  ............. 29
OFF SWITCH  ...................................................... 29
A/C SWITCH  ....................................................... 29
MODE SWITCH  .................................................. 29
FAN CONTROL DIAL  .......................................... 29
DUAL SWITCH (WITH LEFT AND RIGHT VEN-
TILATION TEMPERATURE SEPARATELY 

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CONTROL SYSTEM)  .......................................... 29

Fail-Safe Function  .................................................. 30
Discharge Air Flow  ................................................. 31
System Description ................................................. 32

SWITCHES AND THEIR CONTROL FUNCTION ... 32

CAN Communication System Description  .............. 33

TROUBLE DIAGNOSIS  ............................................ 34

CONSULT-II ............................................................ 34

CONSULT-II BASIC OPERATION  ....................... 34
DATA MONITOR .................................................. 35

How to Perform Trouble Diagnosis for Quick and 
Accurate Repair  ...................................................... 36

WORK FLOW  ...................................................... 36
SYMPTOM TABLE  .............................................. 36

Component Parts and Harness Connector Location ... 37

ENGINE COMPARTMENT  .................................. 37
PASSENGER COMPARTMENT .......................... 38

Schematic ............................................................... 39
Wiring Diagram —A/C— ......................................... 40
Auto Amp. Terminals and Reference Value  ............ 45

PIN CONNECTOR TERMINAL LAYOUT  ............ 45
TERMINALS AND REFERENCE VALUE FOR 
UNIFIED METER AND A/C AMP. ........................ 45

Self-Diagnosis Function .......................................... 47

DESCRIPTION .................................................... 47
FUNCTION CONFIRMATION PROCEDURE ...... 48
AUXILIARY MECHANISM: TEMPERATURE 
SETTING TRIMMER  ........................................... 53
AUXILIARY MECHANISM: FOOT POSITION 
SETTING TRIMMER  ........................................... 54
AUXILIARY MECHANISM: INLET PORT MEM-
ORY FUNCTION  ................................................. 54

Operational Check  .................................................. 55

CHECKING MEMORY FUNCTION  ..................... 55
CHECKING BLOWER  ......................................... 55
CHECKING DISCHARGE AIR  ............................ 55
CHECKING RECIRCULATION ............................ 56
CHECKING TEMPERATURE DECREASE  ......... 56
CHECKING TEMPERATURE INCREASE  .......... 56
CHECK A/C SWITCH  .......................................... 56
CHECKING AUTO MODE  ................................... 57

Power Supply and Ground Circuit for Auto Amp. ... 57

INSPECTION FLOW  ........................................... 57
COMPONENT DESCRIPTION ............................ 58
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM ... 58

LAN System Circuit  ................................................ 60

DIAGNOSTIC PROCEDURE FOR LAN CIR-
CUIT .................................................................... 60

Mode Door Motor Circuit  ........................................ 64

INSPECTION FLOW  ........................................... 64
SYSTEM DESCRIPTION  .................................... 65
COMPONENT DESCRIPTION ............................ 66
DIAGNOSTIC PROCEDURE FOR MODE 
DOOR MOTOR  ................................................... 66

Air Mix Door Motor Circuit  ...................................... 67

INSPECTION FLOW  ........................................... 67
SYSTEM DESCRIPTION  .................................... 68
COMPONENT DESCRIPTION ............................ 69
DIAGNOSTIC PROCEDURE FOR AIR MIX 

DOOR ..................................................................69

Air Mix Door Motor PBR Circuit  ..............................69

DIAGNOSTIC PROCEDURE FOR AIR MIX 
DOOR PBR ..........................................................69

Intake Door Motor Circuit  ........................................70

INSPECTION FLOW ............................................70
SYSTEM DESCRIPTION .....................................71
COMPONENT DESCRIPTION  ............................72
DIAGNOSTIC PROCEDURE FOR INTAKE 
DOOR MOTOR ....................................................72

Blower Motor Circuit ................................................73

INSPECTION FLOW ............................................73
SYSTEM DESCRIPTION .....................................74
COMPONENT DESCRIPTION  ............................75
DIAGNOSTIC PROCEDURE FOR BLOWER 
MOTOR ................................................................75
COMPONENT INSPECTION ...............................77

Magnet Clutch Circuit ..............................................78

INSPECTION FLOW ............................................78
SYSTEM DESCRIPTION .....................................79
DIAGNOSTIC PROCEDURE FOR MAGNET 
CLUTCH ..............................................................79
COMPONENT INSPECTION ...............................83

Insufficient Cooling ..................................................84

INSPECTION FLOW ............................................84
PERFORMANCE TEST DIAGNOSIS ..................86
PERFORMANCE CHART ....................................88
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE ...................................................................89

Insufficient Heating  .................................................92

INSPECTION FLOW ............................................92

Noise .......................................................................93

INSPECTION FLOW ............................................93

Self-diagnosis .........................................................94

INSPECTION FLOW ............................................94

Memory Function  ....................................................95

INSPECTION FLOW ............................................95

Ambient Sensor Circuit  ...........................................96

COMPONENT DESCRIPTION  ............................96
AMBIENT TEMPERATURE INPUT PROCESS ...96
DIAGNOSTIC PROCEDURE FOR AMBIENT 
SENSOR ..............................................................96
COMPONENT INSPECTION ...............................98

In-Vehicle Sensor Circuit .........................................99

COMPONENT DESCRIPTION  ............................99
DIAGNOSTIC PROCEDURE FOR IN-VEHICLE 
SENSOR ............................................................100
COMPONENT INSPECTION .............................101

Sunload Sensor Circuit  .........................................102

COMPONENT DESCRIPTION  ..........................102
SUNLOAD INPUT PROCESS  ...........................102
DIAGNOSTIC PROCEDURE FOR SUNLOAD 
SENSOR ............................................................102
COMPONENT INSPECTION .............................104

Intake Sensor Circuit .............................................105

COMPONENT DESCRIPTION  ..........................105
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ...................................................................105
COMPONENT INSPECTION .............................106

ATC-3

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CONTROLLER ....................................................... 107

Removal and Installation of A/C and AV Switch ... 107

REMOVAL ......................................................... 107
INSTALLATION ................................................. 107

AUTO AMP  ............................................................. 108

Removal and Installation of Unified Meter and A/C 
Amp. ..................................................................... 108

REMOVAL ......................................................... 108
INSTALLATION ................................................. 108

AMBIENT SENSOR ................................................ 109

Removal and Installation  ...................................... 109

REMOVAL ......................................................... 109
INSTALLATION ................................................. 109

IN-VEHICLE SENSOR .............................................110

Removal and Installation  .......................................110

REMOVAL ..........................................................110
INSTALLATION ..................................................110

SUNLOAD SENSOR  ............................................... 111

Removal and Installation  ....................................... 111

REMOVAL .......................................................... 111
INSTALLATION .................................................. 111

INTAKE SENSOR  ....................................................112

Removal and Installation  .......................................112

REMOVAL ..........................................................112
INSTALLATION ..................................................112

BLOWER UNIT  ........................................................113

Removal and Installation  .......................................113

REMOVAL ..........................................................113
INSTALLATION ..................................................113

Disassembly and Assembly  ..................................114

BLOWER MOTOR  ...................................................115

Removal and Installation  .......................................115

REMOVAL ..........................................................115
INSTALLATION ..................................................115

INTAKE DOOR MOTOR  ..........................................116

Removal and Installation  .......................................116

REMOVAL ..........................................................116
INSTALLATION ..................................................116

IN-CABIN MICROFILTER ........................................117

Removal and Installation  .......................................117

FUNCTION .........................................................117
REPLACEMENT TIMING ...................................117
REPLACEMENT PROCEDURES ......................117

HEATER & COOLING UNIT ASSEMBLY  ...............118

Removal and Installation  .......................................118

REMOVAL ..........................................................118
INSTALLATION ..................................................119

Disassembly and Assembly  ................................. 120

MODE DOOR MOTOR  ........................................... 122

Removal and Installation  ...................................... 122

REMOVAL ......................................................... 122
INSTALLATION ................................................. 122

AIR MIX DOOR MOTOR ......................................... 123

Removal and Installation  ...................................... 123

REMOVAL ......................................................... 123
INSTALLATION ................................................. 123

HEATER CORE ....................................................... 124

Removal and Installation  ...................................... 124

REMOVAL ......................................................... 124
INSTALLATION ................................................. 124

DUCTS AND GRILLES ........................................... 125

Removal and Installation  ...................................... 125

REMOVAL ......................................................... 125
INSTALLATION ................................................. 128

REFRIGERANT LINES  ........................................... 129

HFC-134a (R-134a) Service Procedure  ............... 129

SETTING OF SERVICE TOOLS AND EQUIP-
MENT ................................................................ 129

Components ......................................................... 131
Removal and Installation of Compressor .............. 132

REMOVAL ......................................................... 132
INSTALLATION ................................................. 133

Removal and Installation of Compressor Clutch  .. 133

REMOVAL ......................................................... 133
INSTALLATION ................................................. 134

Removal and Installation of Low-Pressure Flexible 
Hose ..................................................................... 136

REMOVAL ......................................................... 136
INSTALLATION ................................................. 136

Removal and Installation of High-Pressure Flexible 
Hose ..................................................................... 137

REMOVAL ......................................................... 137
INSTALLATION ................................................. 137

Removal and Installation of Low-Pressure Pipe 1 
(Engine Compartment)  ......................................... 138

REMOVAL ......................................................... 138
INSTALLATION ................................................. 138

Removal and Installation of High-Pressure Pipe 1 
(Engine Compartment)  ......................................... 139

REMOVAL ......................................................... 139
INSTALLATION ................................................. 140

Removal and Installation of Low-Pressure Pipe 2 
and High-Pressure Pipe 2  .................................... 140

REMOVAL ......................................................... 140
INSTALLATION ................................................. 141

Removal and Installation of Liquid Tank  ............... 142

REMOVAL ......................................................... 142
INSTALLATION ................................................. 142

Removal and Installation of Condenser ................ 143

REMOVAL ......................................................... 143
INSTALLATION ................................................. 143

Removal and Installation of Refrigerant Pressure 
Sensor .................................................................. 144

REMOVAL ......................................................... 144
INSTALLATION ................................................. 144

Removal and Installation of Evaporator ................ 144

REMOVAL ......................................................... 144
INSTALLATION ................................................. 145

Removal and Installation of Expansion Valve ....... 145

REMOVAL ......................................................... 145
INSTALLATION ................................................. 145

Checking for Refrigerant Leaks  ............................ 146
Checking System for Leaks Using the Fluorescent 
Leak Detector  ....................................................... 146

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Dye Injection  ......................................................... 146
Electronic Refrigerant Leak Detector .................... 147

PRECAUTIONS FOR HANDLING LEAK 
DETECTOR ....................................................... 147
CHECKING PROCEDURE ................................ 148

SERVICE DATA AND SPECIFICATIONS (SDS)  .... 150

Compressor ..........................................................150
Lubricant ...............................................................150
Refrigerant ............................................................150
Engine Idling Speed ..............................................150
Belt Tension  ..........................................................150

PRECAUTIONS

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PRECAUTIONS

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Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

AJS001BL

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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

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Precautions for Working with HFC-134a (R-134a)

AJS000Y8

WARNING:

●

CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants
are mixed and compressor malfunction is likely to occur, refer to “CONTAMINATED REFRIGER-
ANT” below. To determine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use
Refrigerant Recovery/Recycling Recharging equipment and Refrigerant Identifier.

●

Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) compo-
nents. If lubricant other than that specified is used, compressor malfunction is likely to occur.

●

The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:

–

When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.

–

When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just
before connecting the components. Connect all refrigerant loop components as quickly as possi-
ble to minimize the entry of moisture into system.

–

Only use the specified lubricant from a sealed container. Immediately reseal containers of lubri-
cant. Without proper sealing, lubricant will become moisture saturated and should not be used.

–

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and
throat. Remove HFC-134a (R-134a) from the A/C system, using certified service equipment meet-
ing requirements of SAE J2210 HFC-134a (R-134a) recycling equipment, or J2209 HFC-134a (R-
134a) recovery equipment. If accidental system discharge occurs, ventilate work area before
resuming service. Additional health and safety information may be obtained from refrigerant and
lubricant manufacturers.

–

Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts.
Damage may result.

CONTAMINATED REFRIGERANT

If a refrigerant other than pure HFC-134a ( R-134a) is identified in a vehicle, your options are:

●

Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant
into the atmosphere.

●

Explain that recovery of the contaminated refrigerant could damage your service equipment and refriger-
ant supply.

●

Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.

●

If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contaminated refrigerant into your existing service equipment.   If your facility
does not have dedicated recovery equipment, you may contact a local refrigerant product retailer for avail-
able service. This refrigerant must be disposed of in accordance with all federal and local regulations. In
addition, replacement of all refrigerant system components on the vehicle is recommended.

●

If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact Nissan Cus-
tomer Affairs for further assistance.

PRECAUTIONS

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General Refrigerant Precautions

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WARNING:

●

Do not release refrigerant into the air. Use approved recovery/recycling equipment to capture the
refrigerant every time an air conditioning system is discharged.

●

Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or
air conditioning system.

●

Do not store or heat refrigerant containers above 52

°

C (125

°

F).

●

Do not heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.

●

Do not intentionally drop, puncture, or incinerate refrigerant containers.

●

Keep refrigerant away from open flames: poisonous gas will be produced if refrigerant burns.

●

Refrigerant will displace oxygen, therefore be certain to work in well ventilated areas to prevent
suffocation.

●

Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condi-
tioning systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a)
have been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause
injury or property damage. Additional health and safety information may be obtained from refriger-
ant manufacturers.

Lubricant Precautions

AJS000YA

●

Use only specified lubricant for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components.
If lubricant other than that specified is used, compressor malfunction is likely to occur.

●

The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:

–

When removing refrigerant components from a vehicle, immediately cap (seal) the component to minimize
the entry of moisture from the atmosphere.

–

When installing refrigerant components to a vehicle, do not remove the caps (unseal) until just before con-
necting the components. Connect all refrigerant loop components as quickly as possible to minimize the
entry of moisture into system.

–

Only use the specified lubricant from a sealed container. Immediately reseal containers of lubricant. With-
out proper sealing, lubricant will become moisture saturated and should not be used.

●

Avoid breathing A/C refrigerant and lubricant vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) from the A/C system, using certified service equipment meeting require-
ments of SAE J2210 HFC-134a (R-134a) recycling equipment, or J2209 HFC-134a (R-134a) recovery
equipment. If accidental system discharge occurs, ventilate work area before resuming service. Additional
health and safety information may be obtained from refrigerant and lubricant manufacturers.

●

Do not allow lubricant (Nissan A/C System Oil Type S) to come in contact with styrofoam parts. Damage
may result.

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Precautions for Refrigerant Connection

AJS000YB

A new type refrigerant connection has been introduced to all refrigerant lines except the following location.

●

Expansion valve to evaporator

●

Refrigerant pressure sensor to condenser

ABOUT ONE-TOUCH JOINT
Description

●

One-touch joints are pipe joints which do not require tools during piping connection.

●

Unlike conventional connection methods using union nuts and flanges, controlling tightening torque at
connection point is not necessary.

●

When removing a pipe joint, use a disconnector.

COMPONENT PARTS

FUNCTIONS OF COMPONENT PARTS

NOTE:

●

Garter spring cannot be removed from cage of male-side piping.

●

Indicator ring remains near piping connection point, however, this is not a malfunction. (This is to check
piping connection during factory assembly.)

RJIA0970E

Pipe (Male side)

●

Retains O-rings.

●

Retains garter spring in cage.

Garter spring

Anchors female side piping.

Indicator ring

When connection is made properly, this is ejected from male-side piping. (This part is no longer neces-
sary after connection.)

O-ring

Seals connection point. (Not reusable)

Pipe (Female side)

●

Seals connection by compressing O-rings.

●

Anchors piping connection using flare and garter spring.