Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan X-Trail 2005 2006 Approved 2006 MTC
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MANUAL AIR CONDITIONER
J AIR CONDITIONER
A
SECTION
MANUAL AIR CONDITIONER
MTC B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 4
. LUBRICANT ............................................................. 22
. F
Precautions for Supplemental Restraint System Maintenance of Lubricant Quantity in Compressor 22 ...
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- LUBRICANT ....................................................... 22
.
SIONER" ................................................................. 4
. LUBRICANT RETURN OPERATION ................. 22 . G
Precautions for Working with HFC-134a (R-134a) 4 ..... LUBRICANT ADJUSTING PROCEDURE FOR
CONTAMINATED REFRIGERANT ...................... 5 . COMPONENTS REPLACEMENT EXCEPT
General Refrigerant Precautions ............................. 5 . COMPRESSOR ................................................. 23 .
H
Precautions for Refrigerant Connection .................. 6 . LUBRICANT ADJUSTING PROCEDURE FOR
FEATURES OF NEW TYPE REFRIGERANT COMPRESSOR REPLACEMENT ...................... 23 .
CONNECTION ..................................................... 6. AIR CONDITIONER CONTROL .............................. 25 .
O-RING AND REFRIGERANT CONNECTION..... 7 Control Operation .................................................. 25
. I
Precautions for Servicing Compressor .................... 9 . FAN CONTROL DIAL ......................................... 25 .
Precautions for Service Equipment ......................... 9 . TEMPERATURE CONTROL DIAL ..................... 25 .
RECOVERY/RECYCLING EQUIPMENT ............. 9 . MODE CONTROL DIAL ..................................... 25 . MTC
ELECTRICAL LEAK DETECTOR ........................ 9 . RECIRCULATION (REC) SWITCH .................... 25 .
VACUUM PUMP .................................................. 9 . A/C SWITCH ...................................................... 25
.
MANIFOLD GAUGE SET ..................................... 9 . Discharge Air Flow ................................................ 26
.
K
SERVICE HOSES .............................................. 10 . System Description ................................................ 27
.
SERVICE COUPLERS ....................................... 10 . SWITCHES AND THEIR CONTROL FUNCTION 27 ...
REFRIGERANT WEIGHT SCALE ..................... 10 . TROUBLE DIAGNOSIS ........................................... 28 .
CHARGING CYLINDER ..................................... 10 . How to Perform Trouble Diagnoses for Quick and L
Precautions for Leak Detection Dye ...................... 10 . Accurate Repair ..................................................... 28
.
IDENTIFICATION ................................................11 . WORK FLOW ..................................................... 28 .
IDENTIFICATION LABEL FOR VEHICLE ...........11 . SYMPTOM TABLE ............................................. 28 . M
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 INTAKE AIR .................................... 36 .
REFRIGERANT PRESSURE SENSOR ............ 16 . CHECKING TEMPERATURE DECREASE ........ 36 .
PRESSURE RELIEF VALVE .............................. 16 . CHECKING TEMPERATURE INCREASE ......... 36 .
V-6 Variable Displacement Compressor ................ 17 . CHECKING A/C SWITCH .................................. 36 .
GENERAL INFORMATION ................................ 17 . Mode Door ............................................................. 37
.
DESCRIPTION ................................................... 18. INSPECTION FLOW .......................................... 37 .
Component Layout ................................................ 21. Air Mix Door ........................................................... 38
.
INSPECTION FLOW ........................................
Revision: 2006 July MTC-1 2006 X-Trail
Intake Door Motor Circuit ....................................... 39 . AIR MIX DOOR .........................................................73 .
INSPECTION FLOW .......................................... 39 . Air Mix Door Cable Adjustment ..............................73 .
COMPONENT DESCRIPTION ........................... 39 . HEATER CORE ........................................................74 .
DIAGNOSIS PROCEDURE FOR INTAKE DOOR Removal and Installation ........................................74 .
MOTOR .............................................................. 40
. REMOVAL ...........................................................74 .
Blower Motor Circuit .............................................. 42 . INSTALLATION ...................................................74 .
INSPECTION FLOW .......................................... 42 . DUCTS AND GRILLES ............................................75 .
DIAGNOSIS PROCEDURE FOR BLOWER Removal and Installation ........................................75 .
MOTOR .............................................................. 42
. REMOVAL ...........................................................75 .
COMPONENT INSPECTION ............................. 45 . INSTALLATION ...................................................78 .
Magnet Clutch Circuit ............................................ 46 . REFRIGERANT LINES ............................................79 .
INSPECTION FLOW .......................................... 46 . HFC-134a (R-134a) Service Procedure .................79 .
DIAGNOSIS PROCEDURE FOR MAGNET SETTING OF SERVICE TOOLS AND EQUIP-
CLUTCH ............................................................. 47
. MENT ..................................................................79
.
ELECTRICAL COMPONENT INSPECTION ...... 51 . Components ...........................................................81 .
Insufficient Cooling ................................................ 52. Removal and Installation of Compressor ...............81 .
INSPECTION FLOW .......................................... 52 . REMOVAL ...........................................................81 .
PERFORMANCE TEST DIAGNOSIS ................ 54 . INSTALLATION ...................................................82 .
PERFORMANCE CHART .................................. 56 . Removal and Installation of Compressor Clutch ....83 .
TROUBLE DIAGNOSIS FOR UNUSUAL PRES- REMOVAL ...........................................................83 .
SURE .................................................................. 57
. INSTALLATION ...................................................85 .
Insufficient Heating ................................................ 60. Removal and Installation of Low-pressure Flexible
INSPECTION FLOW .......................................... 60 . Hose .......................................................................86
.
Noise ..................................................................... 61
. REMOVAL ...........................................................86 .
INSPECTION FLOW .......................................... 61 . INSTALLATION ...................................................86 .
CONTROLLER ......................................................... 62 . Removal and Installation of High-pressure Flexible
Removal and Installation of Heater Control Panel... 62 Hose .......................................................................87
.
REMOVAL .......................................................... 62 . REMOVAL ...........................................................87 .
INSTALLATION ................................................... 62 . INSTALLATION ...................................................87 .
Disassembly and Assembly ................................... 62 . Removal and Installation of High-pressure Pipe ....87 .
BLOWER UNIT ........................................................ 63 . REMOVAL ...........................................................87 .
Removal and Installation ....................................... 63 . INSTALLATION ...................................................88 .
REMOVAL .......................................................... 63 . Removal and Installation of Condenser .................88 .
INSTALLATION ................................................... 63 . REMOVAL ...........................................................88 .
Disassembly and Assembly ................................... 64 . INSTALLATION ...................................................89 .
BLOWER MOTOR ................................................... 65 . Removal and Installation of Liquid Tank ................89 .
Removal and Installation ....................................... 65 . REMOVAL ...........................................................89 .
REMOVAL .......................................................... 65 . INSTALLATION ...................................................89 .
INSTALLATION ................................................... 65 . Removal and Installation for Refrigerant Pressure
INTAKE DOOR MOTOR .......................................... 66 . Sensor ....................................................................90
.
Removal and Installation ....................................... 66 . REMOVAL ...........................................................90 .
REMOVAL .......................................................... 66 . INSTALLATION ...................................................90 .
INSTALLATION ................................................... 66 . Removal and Installation of Evaporator .................90 .
BLOWER FAN RESISTOR ...................................... 67 . REMOVAL ...........................................................90 .
Removal and Installation ....................................... 67 . INSTALLATION ...................................................91 .
REMOVAL .......................................................... 67 . Removal and Installation of Expansion Valve ........91 .
INSTALLATION ................................................... 67 . REMOVAL ...........................................................91 .
IN-CABIN MICROFILTER ........................................ 68 . INSTALLATION ...................................................91 .
Removal and Installation ....................................... 68 . Checking for Refrigerant Leaks .............................91 .
FUNCTION ......................................................... 68 . Checking System for Leaks Using the Fluorescent
REPLACEMENT TIMING ................................... 68 . Leak Detector .........................................................92.
REPLACEMENT PROCEDURES ...................... 68 . Dye Injection ..........................................................92
.
HEATER & COOLING UNIT ASSEMBLY ................ 69 . Electrical Leak Detector .........................................92 .
Removal and Installation ....................................... 69 . PRECAUTIONS FOR HANDLING LEAK
REMOVAL .......................................................... 69 . DETECTOR ........................................................92 .
INSTALLATION ................................................... 70 . CHECKING PROCEDURE .................................93 .
Disassembly and Assembly ................................... 71 . SERVICE DATA AND SPECIFICATIONS (SDS) .....95 .
MODE DOOR ........................................................... 72 . Compressor ...........................................................95 .
Mode Door Cable Adjustment ............................... 72 . Lubricant ................................................................95
.
Revision: 2006 July MTC-2 2006 X-Trail
Refrigerant ............................................................ 95
. Engine Idling Speed .............................................. 95.
Belt Tension ........................................................... 95
. A
B
C
D
E
F
G
H
I
MTC
K
L
M
Revision: 2006 July MTC-3 2006 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
CAUTION:
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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