Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 1999-2003 Approved Nissan Pathfinder 2002 ha
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HEATER & GI
AIR CONDITIONER
MA
SECTION HA EM
LC
EC
FE
CONTENTS CL
AUTO Operational Check .....................................................67
MT
A/C System................................................................72
PRECAUTIONS ...............................................................3
Mode Door Motor.......................................................76
Supplemental Restraint System (SRS) AIR
BAG and SEAT BELT PRE-TENSIONER...............3
Air Mix Door Motor ....................................................83 AT
Intake Door Motor......................................................87
Precautions for Working with HFC-134a (R-134a) .....3
Blower Motor..............................................................95
General Refrigerant Precautions .................................4 TF
Magnet Clutch..........................................................104
Precautions for Leak Detection Dye............................4
Insufficient Cooling ..................................................112
Precaution for Identification Label on Vehicle .............5
Insufficient Heating ..................................................121
Precautions for Refrigerant Connection ......................5
Noise........................................................................123
PD
Precautions for Servicing Compressor........................7
Self-diagnosis ..........................................................124
Precautions for Service Equipment .............................8
Memory Function .....................................................126 AX
Wiring Diagrams and Trouble Diagnoses..................10
ECON (ECONOMY) Mode ......................................128
PREPARATION .............................................................11
Ambient Sensor Circuit............................................129
Special Service Tools ................................................11
In-vehicle Sensor Circuit..........................................132 SU
HFC-134a (R-134a) Service Tools and
Sunload Sensor Circuit............................................135
Equipment..................................................................12
Intake Sensor Circuit ...............................................138
DESCRIPTION ...............................................................15
Air Mix Door Motor PBR Circuit ..............................140 BR
Refrigeration System .................................................15
Multiplex Communication Circuit .............................141
V-6 Variable Displacement Compressor....................16
SERVICE PROCEDURE..............................................143 ST
Component Layout ....................................................20
HFC-134a (R-134a) Service Procedure ..................143
Introduction ................................................................21
Maintenance of Lubricant Quantity in
Features.....................................................................21
Overview of Control System......................................24
Compressor .............................................................145 RS
Compressor .............................................................148
Control Operation ......................................................25
Compressor Clutch ..................................................148
Discharge Air Flow.....................................................27 BT
Refrigerant Lines .....................................................152
System Description....................................................28
Checking for Refrigerant Leaks...............................153
TROUBLE DIAGNOSES................................................29
Electronic Refrigerant Leak Detector ......................153
Component Location..................................................29
Fluorescent Dye Leak Detector...............................156
Circuit Diagram (Without Navigation System)...........32
Belt...........................................................................157
Wiring Diagram - A/C, A - (Without Navigation
System)......................................................................33
SERVICE DATA AND SPECIFICATIONS (SDS) .......158 SC
Auto..........................................................................158
Circuit Diagram (With Navigation System)................37
Wiring Diagram - A/C, A - (With Navigation EL
MANUAL
System)......................................................................38
Auto Amp. Terminals and Reference Value...............42 PRECAUTIONS ...........................................................159
Self-diagnosis ............................................................45 Supplemental Restraint System (SRS) AIR IDX
How to Perform Trouble Diagnoses for Quick BAG and SEAT BELT PRE-TENSIONER...........159
and Accurate Repair ..................................................66
CONTENTS (Cont'd)
Precautions for Working with HFC-134a How to Perform Trouble Diagnoses for Quick
(R-134a)...................................................................159 and Accurate Repair ................................................187
General Refrigerant Precautions .............................160 Operational Check ...................................................188
Precautions for Leak Detection Dye........................160 Intake Door ..............................................................190
Precaution for Identification Label on Vehicle .........161 Blower Motor............................................................197
Precautions for Refrigerant Connection ..................161 Insufficient Cooling ..................................................204
Precautions for Servicing Compressor....................163 Insufficient Heating ..................................................212
Precautions for Service Equipment .........................164 Air Outlet..................................................................214
Wiring Diagrams and Trouble Diagnoses................166 Magnet Clutch..........................................................216
PREPARATION ...........................................................167 Noise........................................................................223
Special Service Tools ..............................................167 SERVICE PROCEDURE..............................................224
HFC-134a (R-134a) Service Tools and HFC-134a (R-134a) Service Procedure ..................224
Equipment................................................................168 Maintenance of Lubricant Quantity in
DESCRIPTION .............................................................171 Compressor .............................................................226
Refrigeration System ...............................................171 Compressor .............................................................229
V-6 Variable Displacement Compressor..................172 Compressor Clutch ..................................................229
Component Layout ..................................................176 Refrigerant Lines .....................................................233
Control Operation ....................................................177 Checking for Refrigerant Leaks...............................234
Discharge Air Flow...................................................178 Electronic Refrigerant Leak Detector ......................234
System Description..................................................179 Fluorescent Dye Leak Detector...............................237
TROUBLE DIAGNOSES..............................................180 Belt...........................................................................238
Component Location................................................180 SERVICE DATA AND SPECIFICATIONS (SDS) .......239
Wiring Diagram - HEATER -....................................182 Manual .....................................................................239
Circuit Diagram - Air Conditioner.............................183
Wiring Diagram - A/C, M - .......................................184
HA-2
PRECAUTIONS AUTO
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR GI
BAG" and "SEAT BELT PRE-TENSIONER" NAHA0153
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
MA
collision. The SRS system composition which is available to NISSAN MODEL R50 is as follows:
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