2003 NISSAN X-TRAIL Service Repair Manual

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NISSAN X-TRAIL 2003 Service Repair Manual REAR SEAT
SE-33
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Removal and InstallationEIS000NS
SEAT CUSHION
1. Lift to fold seat cushion up.
2. Pivot pin on rear seat striker downward. Slide it to left of vehicle.
3. S

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NISSAN X-TRAIL 2003 Service Repair Manual SE-34
REAR SEAT

REAR SEAT STRIKER (SIDE)
1. Remove luggage side lower finisher. Refer to EI-35, "Removal
and Installation" .
2. Remove bolts.
REAR SEAT CENTER BRACKET
1. Remove rear seatback.
2. Rem

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NISSAN X-TRAIL 2003 Service Repair Manual REAR SEAT
SE-35
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3. Slide armrest and lid to the right and remove from the seatback pin.
SIIA0334E

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NISSAN X-TRAIL 2003 Service Repair Manual SE-36
REAR SEAT

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NISSAN X-TRAIL 2003 Service Repair Manual ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION
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AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 4
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ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION
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AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Working with HFC-134a (R-134a) ..... 4
General Refrigerant Precautions .............................. 5
Lubricant Precautions .............................................. 5
Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 6
O-RING AND REFRIGERANT CONNECTION ..... 7
Precautions for Servicing Compressor ................... 10
Precautions for Service Equipment ........................ 10
RECOVERY/RECYCLING EQUIPMENT ............ 10
ELECTRONIC LEAK DETECTOR ...................... 10
VACUUM PUMP ................................................. 10
MANIFOLD GAUGE SET .................................... 10
SERVICE HOSES ................................................ 11
SERVICE COUPLERS ......................................... 11
REFRIGERANT WEIGHT SCALE ....................... 11
CALIBRATING ACR4 WEIGHT SCALE ............... 11
CHARGING CYLINDER ...................................... 12
Precautions for Leak Detection Dye ....................... 12
IDENTIFICATION ................................................ 13
IDENTIFICATION LABEL FOR VEHICLE ........... 13
Wiring Diagrams and Trouble Diagnosis ................ 13
PREPARATION ......................................................... 14
Special Service Tools ............................................. 14
WITH GASOLINE ENGINE (CWV-615M COM-
PRESSOR) ......................................................... 14
WITH DIESEL ENGINE (DKV-11G COMPRES-
SOR) ................................................................... 14
HFC-134a (R-134a) Service Tools and Equipment ... 15
REFRIGERATION SYSTEM ..................................... 18
Refrigerant Cycle ................................................... 18
REFRIGERANT FLOW ....................................... 18
FREEZE PROTECTION (WITH GASOLINE
ENGINE: CWV-615M COMPRESSOR) .............. 18
Refrigerant System Protection ............................... 18
REFRIGERANT PRESSURE SENSOR (WITH GASOLINE ENGINE: CWV-615M COMPRES-
SOR) ................................................................... 18
DUAL-PRESSURE SWITCH (WITH DIESEL
ENGINE: DKV-11G COMPRESSOR) .................. 18
PRESSURE RELIEF VALVE (WITH GASOLINE
ENGINE: CWV-615M COMPRESSOR) .............. 18
V-6 Variable Displacement Compressor (With Gas-
oline Engine: CWV-615M Compressor) .................. 19
GENERAL INFORMATION ................................. 19
DESCRIPTION .................................................... 20
Component Layout ................................................. 23
LUBRICANT .............................................................. 24
Maintenance of Lubricant Quantity in Compressor ... 24
LUBRICANT ........................................................ 24
LUBRICANT RETURN OPERATION .................. 24
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR .................................................. 25
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT ....................... 25
AIR CONDITIONER CONTROL ............................... 27
Description of Air Conditioner LAN Control System ... 27
System Construction .............................................. 27
OPERATION ........................................................ 27
TRANSMISSION DATA AND TRANSMISSION
ORDER ............................................................... 28
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) ..................................... 29
FAN SPEED CONTROL ...................................... 29
INTAKE DOOR CONTROL ................................. 29
OUTLET DOOR CONTROL ................................ 29
MAGNET CLUTCH CONTROL ........................... 29
SELF-DIAGNOSTIC SYSTEM ............................ 29
Description of Control System ................................ 30
Control Operation ................................................... 31
MODE CONTROL DIAL ...................................... 31
TEMPERATURE CONTROL DIAL (POTENTIO
TEMPERATURE CONTROL) .............................. 31
FAN CONTROL DIAL .......................................... 31
REAR WINDOW DEFOGGER SWITCH ............. 31

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NISSAN X-TRAIL 2003 Service Repair Manual ATC-2 INTAKE SWITCH ................................................. 31
A/C SWITCH ....................................................... 31
Discharge Air Flow ....................................

ATC-2 INTAKE SWITCH ................................................. 31
A/C SWITCH ....................................................... 31
Discharge Air Flow ................................................. 32
System Description ................................................. 33
SWITCHES AND THEIR CONTROL FUNCTION ... 33
TROUBLE DIAGNOSIS ............................................ 34
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ...................................................... 34
WORK FLOW ...................................................... 34
SYMPTOM TABLE .............................................. 34
Component Parts and Harness Connector Location ... 35
ENGINE COMPARTMENT .................................. 35
PASSENGER COMPARTMENT .......................... 36
Schematic ............................................................... 37
WITH GASOLINE ENGINE ................................. 37
WITH DIESEL ENGINE ....................................... 38
Wiring Diagram —A/C— ......................................... 39
WITH GASOLINE ENGINE / LHD MODELS ....... 39
WITH GASOLINE ENGINE / RHD MODELS ...... 43
WITH DIESEL ENGINE / LHD MODELS ............ 47
WITH DIESEL ENGINE / RHD MODELS ............ 51
Auto Amp. Terminals and Reference Value ............ 55
PIN CONNECTOR TERMINAL LAYOUT ............ 55
TERMINALS AND REFERENCE VALUE FOR
AUTO AMP. ......................................................... 55
Self-diagnosis Function .......................................... 57
DESCRIPTION .................................................... 57
FUNCTION CONFIRMATION PROCEDURE ...... 59
AUXILIARY MECHANISM: TEMPERATURE
SETTING TRIMMER ........................................... 63
AUXILIARY MECHANISM: FOOT POSITION
SETTING TRIMMER ........................................... 63
AUXILIARY MECHANISM: INLET PORT MEM-
ORY FUNCTION ................................................. 64
Operational Check .................................................. 65
CHECKING BLOWER ......................................... 65
CHECKING DISCHARGE AIR ............................ 65
CHECKING INTAKE DOOR ................................ 65
CHECKING TEMPERATURE DECREASE ......... 66
CHECKING TEMPERATURE INCREASE .......... 66
CHECKING A/C SWITCH ................................... 66
Power Supply and Ground Circuit for Auto Amp. ... 67
INSPECTION FLOW ........................................... 67
COMPONENT DESCRIPTION ............................ 67
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM ... 68
LAN System Circuit ................................................ 69
DIAGNOSTIC PROCEDURE FOR LAN CIR-
CUIT .................................................................... 69
Mode Door Motor Circuit ........................................ 73
INSPECTION FLOW ........................................... 73
SYSTEM DESCRIPTION .................................... 74
COMPONENT DESCRIPTION ............................ 75
DIAGNOSTIC PROCEDURE FOR MODE
DOOR MOTOR ................................................... 75
Air Mix Door Motor Circuit ...................................... 76
INSPECTION FLOW ........................................... 76
SYSTEM DESCRIPTION .................................... 77
COMPONENT DESCRIPTION ............................ 78
DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR .................................................... 78
Intake Door Motor Circuit ........................................ 79
INSPECTION FLOW ............................................ 79
SYSTEM DESCRIPTION ..................................... 80
COMPONENT DESCRIPTION ............................ 81
DIAGNOSTIC PROCEDURE FOR INTAKE
DOOR MOTOR .................................................... 81
Blower Motor Circuit ................................................ 82
INSPECTION FLOW ............................................ 82
SYSTEM DESCRIPTION ..................................... 83
COMPONENT DESCRIPTION ............................ 84
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ................................................................ 84
COMPONENT INSPECTION ............................... 87
Magnet Clutch Circuit .............................................. 88
INSPECTION FLOW ............................................ 88
SYSTEM DESCRIPTION ..................................... 89
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 89
COMPONENT INSPECTION ............................... 94
Insufficient Cooling .................................................. 96
INSPECTION FLOW ............................................ 96
PERFORMANCE TEST DIAGNOSIS .................. 98
PERFORMANCE CHART ..................................100
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE .................................................................102
Insufficient Heating ...............................................105
INSPECTION FLOW ..........................................105
Noise .....................................................................107
INSPECTION FLOW ..........................................107
Self-diagnosis .......................................................108
INSPECTION FLOW ..........................................108
Ambient Sensor Circuit .........................................109
COMPONENT DESCRIPTION ..........................109
AMBIENT TEMPERATURE INPUT PROCESS .109
DIAGNOSTIC PROCEDURE FOR AMBIENT
SENSOR ............................................................109
COMPONENT INSPECTION ............................. 111
In-vehicle Sensor Circuit ....................................... 111
COMPONENT DESCRIPTION .......................... 111
DIAGNOSTIC PROCEDURE FOR IN-VEHICLE
SENSOR ............................................................112
COMPONENT INSPECTION .............................113
Sunload Sensor Circuit .........................................114
COMPONENT DESCRIPTION ..........................114
SUNLOAD INPUT PROCESS ...........................114
DIAGNOSTIC PROCEDURE FOR SUNLOAD
SENSOR ............................................................114
COMPONENT INSPECTION .............................116
Intake Sensor Circuit .............................................117
COMPONENT DESCRIPTION ..........................117
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ...................................................................117
COMPONENT INSPECTION .............................119
CONTROLLER ........................................................120
Removal and Installation .......................................120
REMOVAL ..........................................................120
INSTALLATION ..................................................120

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NISSAN X-TRAIL 2003 Service Repair Manual ATC-3
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AMBIENT SENSOR ................................................ 121
Removal and Installation ...................................... 121
REMOVAL ....................

ATC-3
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AMBIENT SENSOR ................................................ 121
Removal and Installation ...................................... 121
REMOVAL ......................................................... 121
INSTALLATION ................................................. 121
IN-VEHICLE SENSOR ............................................ 122
Removal and Installation ...................................... 122
REMOVAL ......................................................... 122
INSTALLATION ................................................. 122
SUNLOAD SENSOR .............................................. 123
Removal and Installation ...................................... 123
REMOVAL ......................................................... 123
INSTALLATION ................................................. 123
INTAKE SENSOR ................................................... 124
Removal and Installation ...................................... 124
REMOVAL ......................................................... 124
INSTALLATION ................................................. 124
BLOWER UNIT ....................................................... 125
Removal and Installation ...................................... 125
REMOVAL ......................................................... 125
INSTALLATION ................................................. 125
Disassembly and Assembly ................................. 126
BLOWER MOTOR .................................................. 127
Removal and Installation ...................................... 127
REMOVAL ......................................................... 127
INSTALLATION ................................................. 127
INTAKE DOOR MOTOR ......................................... 128
Removal and Installation ...................................... 128
REMOVAL ......................................................... 128
INSTALLATION ................................................. 128
FAN CONTROL AMPLIFIER .................................. 129
Removal and Installation ...................................... 129
REMOVAL ......................................................... 129
INSTALLATION ................................................. 129
VENTILATION AIR FILTER .................................... 130
Removal and Installation ...................................... 130
FUNCTION ........................................................ 130
REPLACEMENT TIMING .................................. 130
REPLACEMENT PROCEDURES ..................... 130
HEATER & COOLING UNIT ASSEMBLY .............. 131
Removal and Installation ...................................... 131
REMOVAL ......................................................... 131
INSTALLATION ................................................. 132
Disassembly and Assembly ................................. 132
MODE DOOR MOTOR ........................................... 134
Removal and Installation ...................................... 134
REMOVAL ......................................................... 134
INSTALLATION ................................................. 134
AIR MIX DOOR MOTOR ......................................... 135
Removal and Installation ...................................... 135
REMOVAL ......................................................... 135
INSTALLATION ................................................. 135
HEATER CORE ...................................................... 136
Removal and Installation ...................................... 136
REMOVAL ......................................................... 136
INSTALLATION ................................................. 136
DUCTS AND GRILLES .......................................... 137
Removal and Installation ...................................... 137
REMOVAL ......................................................... 137
INSTALLATION ................................................. 140REFRIGERANT LINES ...........................................141
HFC-134a (R-134a) Service Procedure ...............141
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ................................................................141
Components .........................................................143
WITH GASOLINE ENGINE ...............................143
WITH DIESEL ENGINE .....................................144
Removal and Installation of Compressor ..............144
REMOVAL .........................................................144
INSTALLATION .................................................146
Removal and Installation of Compressor Clutch ..146
REMOVAL .........................................................146
INSTALLATION .................................................150
Removal and Installation of Low-pressure Flexible
Hose .....................................................................153
REMOVAL .........................................................153
INSTALLATION .................................................154
Removal and Installation of High-pressure Flexible
Hose .....................................................................154
REMOVAL .........................................................154
INSTALLATION .................................................155
Removal and Installation of High-pressure Pipe ..155
REMOVAL .........................................................155
INSTALLATION .................................................155
Removal and Installation of Condenser ................155
REMOVAL .........................................................155
INSTALLATION .................................................156
Removal and Installation of Liquid Tank ...............156
REMOVAL .........................................................156
INSTALLATION .................................................157
Removal and Installation of Refrigerant Pressure
Sensor ..................................................................157
REMOVAL .........................................................157
INSTALLATION .................................................157
Removal and Installation of Dual-pressure Switch .158
REMOVAL .........................................................158
INSTALLATION .................................................158
Removal and Installation of Evaporator ................158
REMOVAL .........................................................158
INSTALLATION .................................................159
Removal and Installation of Expansion Valve .......159
REMOVAL .........................................................159
INSTALLATION .................................................159
Checking for Refrigerant Leaks ............................160
Checking System for Leaks Using the Fluorescent
Leak Detector .......................................................160
Dye Injection .........................................................160
Electronic Refrigerant Leak Detector ....................161
PRECAUTIONS FOR HANDLING LEAK
DETECTOR .......................................................161
CHECKING PROCEDURE ...............................161
SERVICE DATA AND SPECIFICATIONS (SDS) ....164
Compressor ..........................................................164
Lubricant ...............................................................164
Refrigerant ............................................................164
Engine Idling Speed .............................................164
Belt Tension ..........................................................164

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NISSAN X-TRAIL 2003 Service Repair Manual ATC-4
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EJS004YA
The Supplemental Restraint System such as “AIR

ATC-4
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EJS004YA
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 and SB section of
this Service Manual.
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.
Precautions for Working with HFC-134a (R-134a)EJS000T1
WARNING:
CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. These refrigerants
must never be mixed, even in the smallest amount. If the refrigerants are mixed and compressor
malfunction is likely to occur.
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. Use only approved recovery/recycling equipment to discharge HFC-134a (R-134a) refriger-
ant. If accidental system discharge occurs, ventilate work area before resuming service. Addi-
tional health and safety information may be obtained from refrigerant and lubricant
manufacturers.
Do not allow lubricant (Nissan A/C System Oil Type S or R) to come in contact with styrofoam
parts. Damage may result.

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