Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 1999-2003 Approved Nissan Pathfinder 2003 ha
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HEATER & GI
AIR CONDITIONER
MA
SECTION HA EM
LC
EC
FE
CONTENTS CL
AUTO Operational Check .....................................................80
MT
A/C System................................................................88
PRECAUTIONS ...............................................................3
Mode Door Motor.......................................................92
Supplemental Restraint System (SRS) AIR
BAG and SEAT BELT PRE-TENSIONER...............3
Air Mix Door Motor ..................................................100 AT
Intake Door Motor....................................................105
Precautions for Working with HFC-134a (R-134a) .....3
Blower Motor............................................................114
General Refrigerant Precautions .................................4 TF
Magnet Clutch..........................................................125
Precautions for Leak Detection Dye............................4
Insufficient Cooling ..................................................133
Precaution for Identification Label on Vehicle .............5
Insufficient Heating ..................................................143
Precautions for Refrigerant Connection ......................5
Noise........................................................................146
PD
Precautions for Servicing Compressor........................7
Self-diagnosis ..........................................................147
Precautions for Service Equipment .............................8
Memory Function .....................................................150 AX
Wiring Diagrams and Trouble Diagnoses..................10
ECON (ECONOMY) Mode ......................................153
PREPARATION .............................................................11
Ambient Sensor Circuit............................................155
Special Service Tools ................................................11
In-vehicle Sensor Circuit..........................................158 SU
HFC-134a (R-134a) Service Tools and
Sunload Sensor Circuit............................................162
Equipment..................................................................12
Intake Sensor Circuit ...............................................165
DESCRIPTION ...............................................................16
Air Mix Door Motor PBR Circuit ..............................167 BR
Refrigeration System .................................................16
Multiplex Communication Circuit .............................168
V-6 Variable Displacement Compressor....................17
SERVICE PROCEDURE..............................................170 ST
Component Layout ....................................................21
HFC-134a (R-134a) Service Procedure ..................170
Introduction ................................................................22
Maintenance of Lubricant Quantity in
Features.....................................................................22
Overview of Control System......................................25
Compressor .............................................................172 RS
Compressor .............................................................175
Control Operation ......................................................26
Compressor Clutch ..................................................175
Discharge Air Flow.....................................................29 BT
Refrigerant Lines .....................................................179
System Description....................................................30
Checking for Refrigerant Leaks...............................180
TROUBLE DIAGNOSES................................................31
Electronic Refrigerant Leak Detector ......................180
Component Location..................................................31
Fluorescent Dye Leak Detector...............................183
Circuit Diagram (Without Navigation System)...........34
Belt...........................................................................184
Wiring Diagram - A/C, A - (Without Navigation
System)......................................................................35
In-cabin Microfilter ...................................................184 SC
SERVICE DATA AND SPECIFICATIONS (SDS) .......186
Circuit Diagram (With Navigation System)................39
Auto..........................................................................186
Wiring Diagram - A/C, A - (With Navigation EL
System)......................................................................40
MANUAL
Auto Amp. Terminals and Reference Value...............44
Self-diagnosis ............................................................48 PRECAUTIONS ...........................................................187 IDX
How to Perform Trouble Diagnoses for Quick Supplemental Restraint System (SRS) AIR
and Accurate Repair ..................................................79 BAG and SEAT BELT PRE-TENSIONER...........187
CONTENTS (Cont'd)
Precautions for Working with HFC-134a (R-134a) .187 Operational Check ...................................................217
General Refrigerant Precautions .............................188 Intake Door ..............................................................219
Precautions for Leak Detection Dye........................188 Blower Motor............................................................226
Precaution for Identification Label on Vehicle .........189 Insufficient Cooling ..................................................233
Precautions for Refrigerant Connection ..................189 Insufficient Heating ..................................................241
Precautions for Servicing Compressor....................191 Air Outlet..................................................................243
Precautions for Service Equipment .........................192 Magnet Clutch..........................................................245
Wiring Diagrams and Trouble Diagnoses................194 Noise........................................................................252
PREPARATION ...........................................................195 SERVICE PROCEDURE..............................................253
Special Service Tools ..............................................195 HFC-134a (R-134a) Service Procedure ..................253
HFC-134a (R-134a) Service Tools and Maintenance of Lubricant Quantity in
Equipment................................................................196 Compressor .............................................................255
DESCRIPTION .............................................................200 Compressor .............................................................258
Refrigeration System ...............................................200 Compressor Clutch ..................................................258
V-6 Variable Displacement Compressor..................201 Refrigerant Lines .....................................................262
Component Layout ..................................................205 Checking for Refrigerant Leaks...............................263
Control Operation ....................................................206 Electronic Refrigerant Leak Detector ......................263
Discharge Air Flow...................................................207 Fluorescent Dye Leak Detector...............................266
System Description..................................................208 Belt...........................................................................267
TROUBLE DIAGNOSES..............................................209 In-cabin Microfilter ...................................................267
Component Location................................................209 SERVICE DATA AND SPECIFICATIONS (SDS) .......269
Wiring Diagram - HEATER -....................................211 Manual .....................................................................269
Circuit Diagram - Air Conditioner.............................212
Wiring Diagram - A/C, M - .......................................213
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ................................................216
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 composition which is available to NISSAN MODEL R50 is as follows:
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