Nissan Pathfinder (2006) Manual de Usario
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MTC-1
MANUAL AIR CONDITIONER
J AIR CONDITIONER
CONTENTS
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SECTION
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MTC
Revision: September 2005 2006 Pathfinder
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
Contaminated Refrigerant ........................................ 4
General Refrigerant Precautions .............................. 5
Precautions for Leak Detection Dye ......................... 5
A/C Identification Label ............................................ 5
Precautions for Refrigerant Connection ................... 5
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION ...................................................... 6
O-RING AND REFRIGERANT CONNECTION ..... 7
Precautions for Servicing Compressor ..................... 9
Precautions for Service Equipment .......................... 9
RECOVERY/RECYCLING EQUIPMENT .............. 9
ELECTRONIC LEAK DETECTOR ........................ 9
VACUUM PUMP ................................................. 10
MANIFOLD GAUGE SET .................................... 10
SERVICE HOSES ............................................... 10
SERVICE COUPLERS .........................................11
REFRIGERANT WEIGHT SCALE .......................11
CHARGING CYLINDER .......................................11
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12
HFC-134a (R-134a) Service Tools and Equipment ... 12
Commercial Service Tools ...................................... 15
REFRIGERATION SYSTEM ..................................... 16
Components ........................................................... 16
REFRIGERATION SYSTEM ............................... 16
Refrigerant Cycle ................................................... 17
REFRIGERANT FLOW ....................................... 17
FREEZE PROTECTION ..................................... 17
Refrigerant System Protection ............................... 17
REFRIGERANT PRESSURE SENSOR ............. 17
PRESSURE RELIEF VALVE ............................... 18
OIL ............................................................................ 19
Maintenance of Oil Quantity in Compressor .......... 19
OIL ...................................................................... 19
CHECKING AND ADJUSTING ........................... 19
AIR CONDITIONER CONTROL ............................... 22
Description .............................................................. 22
Operation ................................................................ 22
AIR MIX DOOR CONTROL ................................. 22
BLOWER SPEED CONTROL ............................. 22
INTAKE DOORS CONTROL ............................... 22
MODE DOOR CONTROL ................................... 22
DEFROSTER DOOR CONTROL ........................ 22
MAGNET CLUTCH CONTROL ........................... 22
Description of Control System ................................ 24
Control Operation ................................................... 25
TEMPERATURE CONTROL DIAL (TEMPERA-
TURE CONTROL) ............................................... 25
RECIRCULATION () SWITCH ............................. 25
DEFROSTER () SWITCH .................................... 25
REAR WINDOW DEFOGGER SWITCH ............. 25
OFF SWITCH (BLOWER SPEED SET TO 0) ..... 25
A/C SWITCH ....................................................... 25
MODE DIAL ......................................................... 25
FRONT BLOWER CONTROL DIAL .................... 25
Discharge Air Flow ................................................. 26
FRONT ................................................................ 26
System Description ................................................. 27
SWITCHES AND THEIR CONTROL FUNCTION ... 27
CAN Communication System Description .............. 28
TROUBLE DIAGNOSIS ............................................ 29
CONSULT-II Function (BCM) ................................. 29
CONSULT-II BASIC OPERATION ....................... 29
DATA MONITOR ................................................. 30
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 31
WORK FLOW ...................................................... 31
SYMPTOM TABLE .............................................. 31
Component Parts and Harness Connector Location ... 32
ENGINE COMPARTMENT .................................. 32
PASSENGER COMPARTMENT ......................... 33
Schematic ............................................................... 34
Wiring Diagram — A/C,M — ................................... 35
Front Air Control Terminals and Reference Value ... 39
PIN CONNECTOR TERMINAL LAYOUT ............ 39
MTC-2
Revision: September 2005 2006 Pathfinder
TERMINALS AND REFERENCE VALUE FOR
FRONT AIR CONTROL ....................................... 39
Operational Check .................................................. 40
CHECKING BLOWER ......................................... 40
CHECKING DISCHARGE AIR ............................ 40
DISCHARGE AIR FLOW ..................................... 40
CHECKING RECIRCULATION ............................ 40
CHECKING TEMPERATURE DECREASE ......... 40
CHECKING TEMPERATURE INCREASE .......... 40
CHECK A/C SWITCH .......................................... 41
Power Supply and Ground Circuit for Front Air Con-
trol ........................................................................... 42
INSPECTION FLOW ........................................... 42
COMPONENT DESCRIPTION ............................ 43
DIAGNOSTIC PROCEDURE FOR A/C SYSTEM ... 43
Mode Door Motor Circuit ........................................ 45
INSPECTION FLOW ........................................... 45
SYSTEM DESCRIPTION .................................... 45
COMPONENT DESCRIPTION ............................ 46
DIAGNOSTIC PROCEDURE FOR MODE
DOOR MOTOR ................................................... 47
Air Mix Door Motor Circuit ...................................... 49
INSPECTION FLOW ........................................... 49
SYSTEM DESCRIPTION .................................... 50
COMPONENT DESCRIPTION ............................ 50
DIAGNOSTIC PROCEDURE FOR AIR MIX
DOOR MOTOR (FRONT) .................................... 51
Intake Door Motor Circuit ........................................ 53
INSPECTION FLOW ........................................... 53
SYSTEM DESCRIPTION .................................... 54
COMPONENT DESCRIPTION ............................ 54
DIAGNOSTIC PROCEDURE FOR INTAKE
DOOR MOTOR ................................................... 55
Front Blower Motor Circuit ...................................... 57
INSPECTION FLOW ........................................... 57
SYSTEM DESCRIPTION .................................... 58
COMPONENT DESCRIPTION ............................ 58
DIAGNOSTIC PROCEDURE FOR BLOWER
MOTOR ............................................................... 59
COMPONENT INSPECTION .............................. 63
Magnet Clutch Circuit ............................................. 65
INSPECTION FLOW ........................................... 65
SYSTEM DESCRIPTION .................................... 66
DIAGNOSTIC PROCEDURE FOR MAGNET
CLUTCH .............................................................. 66
Insufficient Cooling ................................................. 70
INSPECTION FLOW ........................................... 70
PERFORMANCE TEST DIAGNOSES ................ 71
PERFORMANCE CHART ................................... 73
TROUBLE DIAGNOSES FOR UNUSUAL PRES-
SURE ................................................................... 74
Insufficient Heating ................................................. 77
INSPECTION FLOW ........................................... 77
Noise ...................................................................... 78
INSPECTION FLOW ........................................... 78
Intake Sensor Circuit .............................................. 80
COMPONENT DESCRIPTION ............................ 80
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR .....................................................................80
COMPONENT INSPECTION ...............................81
CONTROL UNIT ........................................................82
Removal and Installation .........................................82
FRONT AIR CONTROL .......................................82
INTAKE SENSOR ......................................................83
Removal and Installation .........................................83
REMOVAL ............................................................83
INSTALLATION ....................................................83
BLOWER MOTOR .....................................................84
Components ............................................................84
Removal and Installation .........................................84
REMOVAL ............................................................84
INSTALLATION ....................................................84
IN-CABIN MICROFILTER ..........................................85
Removal and Installation .........................................85
FUNCTION ..........................................................85
REPLACEMENT TIMING ....................................85
REPLACEMENT PROCEDURE ..........................85
HEATER & COOLING UNIT ASSEMBLY .................87
Components ............................................................87
Removal and Installation .........................................87
REMOVAL ............................................................87
INSTALLATION ....................................................88
HEATER CORE .........................................................89
Components ............................................................89
Removal and Installation .........................................89
REMOVAL ............................................................89
INSTALLATION ....................................................89
INTAKE DOOR MOTOR ............................................90
Removal and Installation .........................................90
REMOVAL ............................................................90
INSTALLATION ....................................................90
MODE DOOR MOTOR ..............................................91
Removal and Installation .........................................91
REMOVAL ............................................................91
INSTALLATION ....................................................91
AIR MIX DOOR MOTOR ...........................................92
Components ............................................................92
Removal and Installation .........................................92
REMOVAL ............................................................92
INSTALLATION ....................................................92
FRONT BLOWER MOTOR RESISTOR ....................93
Removal and Installation .........................................93
REMOVAL ............................................................93
INSTALLATION ....................................................93
DUCTS AND GRILLES .............................................94
Components ............................................................94
Removal and Installation .........................................95
CONSOLE DUCTS AND CONSOLE GRILLE .....95
DEFROSTER NOZZLE ........................................96
RH AND LH SIDE DEMISTER DUCTS ...............96
RH AND LH VENTILATOR DUCTS .....................96
CENTER VENTILATOR DUCT ............................96
FLOOR CONNECTOR DUCT .............................96
FRONT AND REAR FLOOR DUCTS ..................96
GRILLES ..............................................................97
REFRIGERANT LINES .............................................98
HFC-134a (R-134a) Service Procedure ..................98
MTC-3
C
D
E
F
G
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K
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M
A
B
MTC
Revision: September 2005 2006 Pathfinder
SETTING OF SERVICE TOOLS AND EQUIP-
MENT .................................................................. 98
Components ......................................................... 100
Removal and Installation for Compressor ............ 101
COMPONENTS ................................................ 101
REMOVAL ......................................................... 101
INSTALLATION ................................................. 101
Removal and Installation for Compressor Clutch . 102
REMOVAL ......................................................... 102
INSPECTION .................................................... 103
INSTALLATION ................................................. 103
BREAK-IN OPERATION ................................... 105
Removal and Installation for High-pressure Flexible
A/C Hose .............................................................. 105
REMOVAL ......................................................... 105
INSTALLATION ................................................. 105
Removal and Installation for High-pressure A/C
Pipe ...................................................................... 105
REMOVAL ......................................................... 105
INSTALLATION ................................................. 105
Removal and Installation for Low-pressure Flexible
A/C Hose .............................................................. 105
REMOVAL ......................................................... 105
INSTALLATION ................................................. 105
Removal and Installation for Low-pressure A/C Pipe . 106
REMOVAL ......................................................... 106
INSTALLATION ................................................. 106
Removal and Installation for Refrigerant Pressure
Sensor .................................................................. 106
REMOVAL ......................................................... 106
INSTALLATION ................................................. 106
Removal and Installation for Condenser .............. 106
REMOVAL ......................................................... 106
INSTALLATION ................................................. 107
Removal and Installation for Evaporator .............. 108
REMOVAL ......................................................... 109
INSTALLATION ................................................. 109
Removal and Installation for Expansion Valve ...... 109
REMOVAL ......................................................... 109
INSTALLATION ................................................. 109
Checking for Refrigerant Leaks ............................ 109
Checking System for Leaks Using the Fluorescent
Dye Leak Detector ................................................ 109
Dye Injection ......................................................... 110
Electronic Refrigerant Leak Detector .................... 110
PRECAUTIONS FOR HANDLING LEAK
DETECTOR ....................................................... 110
CHECKING PROCEDURE ................................111
SERVICE DATA AND SPECIFICATIONS (SDS) .... 113
Service Data and Specifications (SDS) ................ 113
COMPRESSOR ................................................ 113
OIL ..................................................................... 113
REFRIGERANT ................................................. 113
ENGINE IDLING SPEED .................................. 113
BELT TENSION ................................................. 113
Especificaciones del producto
| Marca: | Nissan |
| Categoría: | Auto's |
| Modelo: | Pathfinder (2006) |
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