Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 2008-2009 Approved Nissan Pathfinder 2009 HA

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VENTILATION, HEATER & AIR CONDITIONER

HEATER & AIR CONDITIONING SYSTEM
SECTION HA B

E
CONTENTS
PRECAUTION .............................................. 3
. FLUORESCENT LEAK DETECTOR ................ 29 F
Checking of Refrigerant Leaks ...............................29 .
PRECAUTIONS .................................................. 3
. Checking System for Leaks Using the Fluorescent
Precaution for Supplemental Restraint System Dye Leak Detector ..................................................29
. G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Dye Injection ...........................................................29
.
SIONER" .................................................................. 3
.
Precaution Necessary for Steering Wheel Rota- ELECTRICAL LEAK DETECTOR .................... 31
Checking of Refrigerant Leaks ...............................31
. H
tion After Battery Disconnect .................................... 3.
Precaution for Working with HFC-134a (R-134a)...... 3 Electronic Refrigerant Leak Detector ......................31
.
Contaminated Refrigerant ........................................ 4 .
General Refrigerant Precaution ............................... 4 . ON-VEHICLE REPAIR ................................ 34 HA
.
Precaution for Leak Detection Dye .......................... 4 .
REFRIGERATION SYSTEM ............................. 34
A/C Identification Label ............................................ 5
.
Component .............................................................34
.
Precaution for Refrigerant Connection ..................... 5 . J
HFC-134a (R-134a) Service Procedure .................37 .
Precaution for Service of Compressor ................... 10 .
Precaution for Service Equipment .......................... 10 . COMPRESSOR ................................................. 40
Removal and Installation for Compressor ..............40
. K
PREPARATION .......................................... 13
. Removal and Installation for Compressor Clutch ....41
PREPARATION .................................................13
. HIGH-PRESSURE FLEXIBLE HOSE ............... 46
Special Service Tool .............................................. 13
. L
Removal and Installation for Front High-pressure
HFC-134a (R-134a) Service Tool and Equipment 13 ....
Flexible A/C Hose ...................................................46
.
Commercial Service Tool ....................................... 15
.
HIGH-PRESSURE PIPE .................................... 47 M
FUNCTION DIAGNOSIS ............................. 17
. Removal and Installation for Front High-pressure
REFRIGERATION SYSTEM .............................17
. A/C Pipe .................................................................47
.
Removal and Installation for Rear High- and Low-
Component ............................................................. 17
. N
Pressure A/C Pipes ................................................47 .
Refrigerant Cycle ................................................... 21
.
Removal and Installation for Underfloor Rear
Refrigerant System Protection ............................... 21 .
High- and Low-Pressure A/C and Heater Core
OIL .....................................................................23
. Pipes .......................................................................47
. O
Maintenance of Oil Quantity in Compressor .......... 23
.
LOW-PRESSURE FLEXIBLE HOSE ................ 50
ON-VEHICLE MAINTENANCE ................... 25
. Removal and Installation for Front Low-Pressure
Flexible A/C Hose ...................................................50
. P
REFRIGERATION SYSTEM .............................25
.
HFC-134a (R-134a) Service Procedure ................. 25
. LOW-PRESSURE PIPE .................................... 51
Removal and Installation for Front Low-Pressure
OIL .....................................................................27
. A/C Pipe .................................................................51
.
Maintenance of Oil Quantity in Compressor .......... 27
. Removal and Installation for Rear High- and Low-
Pressure A/C Pipes ................................................51 .

Revision: October 2008 HA-1 2009 Pathfinder
Removal and Installation for Underfloor Rear AMBIENT SENSOR .......................................... 57
.
High- and Low-Pressure A/C and Heater Core Removal and Installation ........................................ 57
.
Pipes ...................................................................... 51
.
HEATER PUMP ................................................ 58
.
CONDENSER ................................................... 54
. Removal and Installation ........................................ 58
.
Removal and Installation for Condenser ............... 54
.
SERVICE DATA AND SPECIFICATIONS
REFRIGERANT PRESSURE SENSOR ........... 55
. (SDS) .......................................................... 59
Removal and Installation for Refrigerant Pressure
Sensor ................................................................... 55
. SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................ 59
.
EXPANSION VALVE ........................................ 56
. Service Data and Specification (SDS) ................... 59
.
Removal and Installation for Front Expansion
Valve ...................................................................... 56
.

Revision: October 2008 HA-2 2009 Pathfinder
PRECAUTIONS
< PRECAUTION >
PRECAUTION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT B
PRE-TENSIONER" INFOID:0000000003935690

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along C
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. D
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING: E

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