Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan X-Trail 2005 2006 Approved 2005 MTC
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MANUAL AIR CONDITIONER
J AIR CONDITIONER
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SECTION
MANUAL AIR CONDITIONER
MTC B
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CONTENTS
PRECAUTIONS ......................................................... 4
. DESCRIPTION ................................................... 18. F
Precautions for Supplemental Restraint System Component Layout ................................................ 21.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- LUBRICANT ............................................................. 22
.
SIONER" ................................................................. 4
. Maintenance of Lubricant Quantity in Compressor 22 ... G
Precautions for Working with HFC-134a (R-134a) 4 ..... LUBRICANT ....................................................... 22
.
CONTAMINATED REFRIGERANT ...................... 5 . LUBRICANT RETURN OPERATION ................. 22 .
General Refrigerant Precautions ............................. 5 . LUBRICANT ADJUSTING PROCEDURE FOR
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Lubricant Precautions ............................................. 5
. COMPONENTS REPLACEMENT EXCEPT
Precautions for Refrigerant Connection .................. 6 . COMPRESSOR ................................................. 23 .
FEATURES OF NEW TYPE REFRIGERANT LUBRICANT ADJUSTING PROCEDURE FOR
CONNECTION ..................................................... 6. COMPRESSOR REPLACEMENT ...................... 23 . I
O-RING AND REFRIGERANT CONNECTION..... 7 AIR CONDITIONER CONTROL .............................. 25 .
Precautions for Servicing Compressor .................... 9 . Control Operation .................................................. 25
.
Precautions for Service Equipment ......................... 9 . FAN CONTROL DIAL ......................................... 25 . MTC
RECOVERY/RECYCLING EQUIPMENT ............. 9 . TEMPERATURE CONTROL DIAL ..................... 25 .
ELECTRONIC LEAK DETECTOR ....................... 9 . MODE CONTROL DIAL ..................................... 25 .
VACUUM PUMP .................................................. 9 . RECIRCULATION (REC) SWITCH .................... 25 .
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MANIFOLD GAUGE SET ..................................... 9 . A/C SWITCH ...................................................... 25
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SERVICE HOSES .............................................. 10 . Discharge Air Flow ................................................ 26
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SERVICE COUPLERS ....................................... 10 . System Description ................................................ 27
.
REFRIGERANT WEIGHT SCALE ..................... 10 . SWITCHES AND THEIR CONTROL FUNCTION 27 ... L
CHARGING CYLINDER ..................................... 10 . TROUBLE DIAGNOSIS ........................................... 28 .
Precautions for Leak Detection Dye ...................... 10 . How to Perform Trouble Diagnoses for Quick and
IDENTIFICATION ................................................11 . Accurate Repair ..................................................... 28
. M
IDENTIFICATION LABEL FOR VEHICLE ...........11 . WORK FLOW ..................................................... 28.
Wiring Diagrams and Trouble Diagnosis ................11 . SYMPTOM TABLE ............................................. 28 .
PREPARATION ........................................................ 12
. Component Parts and Harness Connector Location 29 ...
Special Service Tools ............................................ 12
. ENGINE COMPARTMENT ................................. 29 .
HFC-134a (R-134a) Service Tools and Equipment 13 ... PASSENGER COMPARTMENT ........................ 30 .
Commercial Service Tools ..................................... 15 . Schematic --A/C, M-- ........................................... 31 .
REFRIGERATION SYSTEM .................................... 16 . Wiring Diagram -- A/C, M -- ................................. 32 .
Refrigerant Cycle .................................................. 16
. Operational Check ................................................. 36
.
REFRIGERANT FLOW ...................................... 16 . CHECKING BLOWER ........................................ 36 .
FREEZE PROTECTION .................................... 16 . CHECKING DISCHARGE AIR ........................... 36 .
Refrigerant System Protection .............................. 16 . CHECKING RECIRCULATION .......................... 36 .
REFRIGERANT PRESSURE SENSOR ............ 16 . CHECKING TEMPERATURE DECREASE ........ 37 .
PRESSURE RELIEF VALVE .............................. 16 . CHECKING TEMPERATURE INCREASE ......... 37 .
V-6 Variable Displacement Compressor ................ 17 . CHECKING A/C SWITCH .................................. 37 .
GENERAL INFORMATION ................................ 17 . Mode Door ............................................................. 38
.
INSPECTION FLOW ........................................
Revision: 2005 March MTC-1 2005 X-Trail
Air Mix Door ........................................................... 39
. MODE DOOR ...........................................................73 .
INSPECTION FLOW .......................................... 39 . Control Linkage Adjustment ...................................73 .
Intake Door Motor Circuit ....................................... 40 . MODE DOOR CONTROL CABLE ......................73 .
INSPECTION FLOW .......................................... 40 . AIR MIX DOOR .........................................................74 .
COMPONENT DESCRIPTION ........................... 40 . Control Linkage Adjustment ...................................74 .
DIAGNOSTIC PROCEDURE FOR INTAKE AIR MIX DOOR CONTROL CABLE ...................74 .
DOOR MOTOR .................................................. 41 . HEATER CORE ........................................................75 .
Blower Motor Circuit .............................................. 43 . Removal and Installation ........................................75 .
INSPECTION FLOW .......................................... 43 . REMOVAL ...........................................................75 .
DIAGNOSTIC PROCEDURE FOR BLOWER INSTALLATION ...................................................75 .
MOTOR .............................................................. 43
. DUCTS AND GRILLES ............................................76 .
COMPONENT INSPECTION ............................. 46 . Removal and Installation ........................................76 .
Magnet Clutch Circuit ............................................ 47 . REMOVAL ...........................................................76 .
INSPECTION FLOW .......................................... 47 . INSTALLATION ...................................................79 .
DIAGNOSTIC PROCEDURE FOR MAGNET REFRIGERANT LINES ............................................80 .
CLUTCH ............................................................. 48
. HFC-134a (R-134a) Service Procedure .................80 .
ELECTRICAL COMPONENT INSPECTION ...... 52 . SETTING OF SERVICE TOOLS AND EQUIP-
Insufficient Cooling ................................................ 54. MENT ..................................................................80
.
INSPECTION FLOW .......................................... 54 . Components ...........................................................82 .
PERFORMANCE TEST DIAGNOSIS ................ 55 . Removal and Installation of Compressor ...............82 .
PERFORMANCE CHART .................................. 57 . REMOVAL ...........................................................82 .
TROUBLE DIAGNOSIS FOR UNUSUAL PRES- INSTALLATION ...................................................83 .
SURE .................................................................. 58
. Removal and Installation of Compressor Clutch ....84 .
Insufficient Heating ................................................ 61. REMOVAL ...........................................................84 .
INSPECTION FLOW .......................................... 61 . INSTALLATION ...................................................86 .
Noise ..................................................................... 62
. Removal and Installation of Low-Pressure Flexible
INSPECTION FLOW .......................................... 62 . Hose .......................................................................87
.
CONTROLLER ......................................................... 63 . REMOVAL ...........................................................87 .
Removal and Installation ....................................... 63 . INSTALLATION ...................................................87 .
REMOVAL .......................................................... 63 . Removal and Installation of High-Pressure Flexible
INSTALLATION ................................................... 63 . Hose .......................................................................88
.
Disassembly and Assembly ................................... 63 . REMOVAL ...........................................................88 .
BLOWER UNIT ........................................................ 64 . INSTALLATION ...................................................88 .
Removal and Installation ....................................... 64 . Removal and Installation of High-Pressure Pipe ...88
REMOVAL .......................................................... 64 . REMOVAL ...........................................................88 .
INSTALLATION ................................................... 64 . INSTALLATION ...................................................89 .
Disassembly and Assembly ................................... 65 . Removal and Installation of Condenser .................89 .
BLOWER MOTOR ................................................... 66 . REMOVAL ...........................................................89 .
Removal and Installation ....................................... 66 . INSTALLATION ...................................................90 .
REMOVAL .......................................................... 66 . Removal and Installation of Liquid Tank ................90 .
INSTALLATION ................................................... 66 . REMOVAL ...........................................................90 .
INTAKE DOOR MOTOR .......................................... 67 . INSTALLATION ...................................................90 .
Removal and Installation ....................................... 67 . Removal and Installation for Refrigerant Pressure
REMOVAL .......................................................... 67 . Sensor ....................................................................91
.
INSTALLATION ................................................... 67 . REMOVAL ...........................................................91 .
BLOWER FAN RESISTOR ...................................... 68 . INSTALLATION ...................................................91 .
Removal and Installation ....................................... 68 . Removal and Installation of Evaporator .................91 .
REMOVAL .......................................................... 68 . REMOVAL ...........................................................91 .
INSTALLATION ................................................... 68 . INSTALLATION ...................................................92 .
IN-CABIN MICROFILTER ........................................ 69 . Removal and Installation of Expansion Valve ........92 .
Removal and Installation ....................................... 69 . REMOVAL ...........................................................92 .
FUNCTION ......................................................... 69 . INSTALLATION ...................................................92 .
REPLACEMENT TIMING ................................... 69 . Checking for Refrigerant Leaks .............................92 .
REPLACEMENT PROCEDURES ...................... 69 . Checking System for Leaks Using the Fluorescent
HEATER & COOLING UNIT ASSEMBLY ................ 70 . Leak Detector .........................................................93.
Removal and Installation ....................................... 70 . Dye Injection ..........................................................93
.
REMOVAL .......................................................... 70 . Electronic Refrigerant Leak Detector .....................93 .
INSTALLATION ................................................... 71 . PRECAUTIONS FOR HANDLING LEAK
Disassembly and Assembly ................................... 72 .
Revision: 2005 March MTC-2 2005 X-Trail
DETECTOR ....................................................... 93
. Lubricant ................................................................ 96
.
CHECKING PROCEDURE ................................ 94 . Refrigerant ............................................................. 96
. A
SERVICE DATA AND SPECIFICATIONS (SDS) ..... 96 . Engine Idling Speed .............................................. 96 .
Compressor ........................................................... 96
. Belt Tension ........................................................... 96
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MTC
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Revision: 2005 March MTC-3 2005 X-Trail
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" AJS001M5
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:
q 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.
q 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.
q 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) AJS001OH
WARNING:
q CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants
are mixed and compressor malfunction is likely to occur, refer to "CONTAMINATED REFRIGER-
ANT" below. To determine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use
Refrigerant Recovery/Recycling Recharging equipment and Refrigerant identifier.
q 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.
q The specified HFC-134a (R-134a) lubricant rapidly absorbs moisture from the atmosphere. The fol-
lowing handling precautions must be observed:
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