Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Primera 2000.2005 Approved Nissan Note 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 ............................................................. 17
. F
Precautions for Supplemental Restraint System Maintenance of Lubricant Quantity in Compressor.. 17 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- LUBRICANT ....................................................... 17
.
SIONER" ................................................................. 4
. LUBRICANT RETURN OPERATION ................. 17 . G
PrecautionsforProcedureswithoutCowlTopCover 4 ..... LUBRICANT ADJUSTING PROCEDURE FOR
Precautions for Working with HFC-134a (R-134a).... 4 . COMPONENTS REPLACEMENT EXCEPT
General Refrigerant Precautions ............................. 4 . COMPRESSOR ................................................. 18 .
H
Lubricant Precautions ............................................. 5
. LUBRICANT ADJUSTING PROCEDURE FOR
Precautions for Refrigerant Connection .................. 5 . COMPRESSOR REPLACEMENT ...................... 18 .
FEATURES OF NEW TYPE REFRIGERANT AIR CONDITIONER CONTROL .............................. 20 .
CONNECTION ..................................................... 5. Control Operation .................................................. 20
. I
O-RING AND REFRIGERANT CONNECTION..... 6 FAN CONTROL DIAL ......................................... 20 .
Precautions for Servicing Compressor .................... 8 . TEMPERATURE CONTROL DIAL ..................... 20 .
Precautions for Service Equipment ......................... 8 . MODE CONTROL DIAL ..................................... 20 . MTC
RECOVERY/RECYCLING EQUIPMENT ............. 8 . INTAKE DOOR LEVER ...................................... 20 .
ELECTRONIC LEAK DETECTOR ....................... 8 . REAR WINDOW DEFOGGER SWITCH ............ 20 .
VACUUM PUMP .................................................. 9 . A/C SWITCH ...................................................... 20
.
K
MANIFOLD GAUGE SET ..................................... 9 . Discharge Air Flow ................................................ 21
.
SERVICE HOSES ................................................ 9 . System Description ................................................ 22
.
SERVICE COUPLERS ....................................... 10 . SWITCHES AND THEIR CONTROL FUNCTION 22 ...
REFRIGERANT WEIGHT SCALE ..................... 10 . CAN Communication System Description ............. 22 . L
CALIBRATING ACR4 WEIGHT SCALE ............. 10 . TROUBLE DIAGNOSIS ........................................... 23 .
CHARGING CYLINDER ..................................... 10 . CONSULT-II Function (BCM) ................................ 23 .
Precautions for Leak Detection Dye .......................11 . CONSULT-II BASIC OPERATION ...................... 23 . M
IDENTIFICATION ................................................11 . DATA MONITOR ................................................ 23 .
IDENTIFICATION LABEL FOR VEHICLE ...........11 . How to Perform Trouble Diagnosis for Quick and
PREPARATION ........................................................ 12
. Accurate Repair ..................................................... 24
.
HFC-134a (R-134a) Service Tools and Equipment.. 12 . WORK FLOW ..................................................... 24
.
Commercial Service Tools ..................................... 14 . SYMPTOM TABLE ............................................. 24 .
REFRIGERATION SYSTEM .................................... 15 . Component Parts and Harness Connector Location 25 ...
Refrigerant Cycle .................................................. 15
. Wiring Diagram -- HEATER -- ............................. 26 .
REFRIGERANT FLOW ...................................... 15 . Wiring Diagram -- A/C -- CR Engine Models ....... 27 .
FREEZE PROTECTION .................................... 15 . Wiring Diagram -- A/C -- HR Engine Models ....... 29 .
Refrigerant System Protection .............................. 15 . Wiring Diagram -- A/C -- K9K Engine Models ..... 31 .
REFRIGERANT PRESSURE SENSOR ............ 15 . Wiring Diagram -- PTC/H -- ................................. 33 .
PRESSURE RELIEF VALVE .............................. 15 . Operational Check ................................................. 34
.
Component Layout ................................................ 16. CHECKING BLOWER ........................................ 34 .
CHECKING DISCHARGE AIR ........................... 34 .
CHECKING RECIRCULATION .......................... 34 .
CHECKING TEMPERATURE DECREASE ........ 35 .
MTC-1
CHECKING TEMPERATURE INCREASE ......... 35 . HEATER CORE ........................................................74 .
CHECKING A/C SWITCH .................................. 35 . Removal and Installation ...................................... ..74 .
Mode Door ............................................................. 36
. REMOVAL ...........................................................74 .
INSPECTION FLOW .......................................... 36 . INSTALLATION ...................................................74 .
Air Mix Door ........................................................... 37
. AIR CONDITIONER FILTER ....................................75 .
INSPECTION FLOW .......................................... 37 . Removal and Installation ...................................... ..75 .
Intake Door ............................................................ 38
. FUNCTION .........................................................75 .
INSPECTION FLOW .......................................... 38 . REPLACEMENT TIMING ...................................75 .
Blower Motor Circuit .............................................. 39 . REPLACEMENT PROCEDURES .......................75 .
INSPECTION FLOW .......................................... 39 . DUCTS AND GRILLES ............................................76 .
DIAGNOSTIC PROCEDURE FOR BLOWER Removal and Installation ...................................... ..76 .
MOTOR .............................................................. 39
. REMOVAL ...........................................................76 .
COMPONENT INSPECTION ............................. 42 . INSTALLATION ...................................................80 .
Magnet Clutch Circuit ............................................ 43 . REFRIGERANT LINES ............................................81 .
INSPECTION FLOW .......................................... 43 . HFC-134a (R-134a) Service Procedure .................81 .
SYSTEM DESCRIPTION ................................... 44 . SETTING OF SERVICE TOOLS AND EQUIP-
DIAGNOSTIC PROCEDURE FOR MAGNET MENT ..................................................................81
.
CLUTCH ............................................................. 44
. Components ...........................................................83.
COMPONENT INSPECTION ............................. 51 . CR ENGINE MODELS ........................................83 .
Insufficient Cooling ................................................ 52. HR ENGINE MODELS ........................................84 .
INSPECTION FLOW .......................................... 52 . K9K ENGINE MODELS ......................................85 .
PERFORMANCE TEST DIAGNOSIS ................ 53 . Removal and Installation of Compressor ...............86 .
PERFORMANCE CHART .................................. 55 . REMOVAL ...........................................................86 .
TROUBLE DIAGNOSIS FOR UNUSUAL PRES- INSTALLATION ...................................................86 .
SURE .................................................................. 56
. CHECK DISC TO PULLEY CLEARANCE ..........87 .
Insufficient Heating ................................................ 59. Removal and Installation for Pipe and Hose ..........87 .
INSPECTION FLOW .......................................... 59 . REMOVAL ...........................................................87 .
Noise ..................................................................... 60
. INSTALLATION ...................................................87 .
INSPECTION FLOW .......................................... 60 . Removal and Installation for Refrigerant Pressure
CONTROLLER ......................................................... 62 . Sensor ....................................................................88
.
Removal and Installation ....................................... 62 . REMOVAL AND INSTALLATION ........................88 .
REMOVAL .......................................................... 62 . Removal and Installation for Condenser (Models
INSTALLATION ................................................... 62 . without Integrated Condenser) ...............................88 .
Disassembly and Assembly ................................... 63 . REMOVAL ...........................................................88 .
THERMO CONTROL AMPLIFIER ........................... 64 . INSTALLATION ...................................................89 .
Removal and Installation ....................................... 64 . Removal and Installation for Condenser (Models
REMOVAL .......................................................... 64 . with Integrated Condenser) ....................................89 .
INSTALLATION ................................................... 64 . REMOVAL ...........................................................89 .
A/C UNIT ASSEMBLY ............................................. 65 . INSTALLATION ...................................................89 .
Removal and Installation ....................................... 65 . RemovalandInstallationforLiquidTank(HREngine
REMOVAL .......................................................... 65 . with A/T Models) ....................................................90 .
INSTALLATION ................................................... 66 . REMOVAL ...........................................................90 .
Disassembly and Assembly ................................... 67 . INSTALLATION ...................................................90 .
BLOWER MOTOR ................................................... 69 . RemovalandInstallationforLiquidTank(ExceptHR
Removal and Installation ....................................... 69 . Engine with A/T Models) ........................................90 .
REMOVAL .......................................................... 69 . REMOVAL ...........................................................90 .
INSTALLATION ................................................... 69 . INSTALLATION ...................................................91 .
INTAKE DOOR ......................................................... 70 . Removal and Installation for Evaporator ................91 .
Intake Door Cable Adjustment ............................... 70 . REMOVAL ...........................................................91 .
AIR MIX DOOR ........................................................ 71 . INSTALLATION ...................................................91 .
Air Mix Door Cable Adjustment ............................. 71 . Removal and Installation for Expansion Valve .......91 .
MODE DOOR ........................................................... 72 . REMOVAL ...........................................................91 .
Mode Door Cable Adjustment ............................... 72 . INSTALLATION ...................................................92 .
BLOWER FAN RESISTOR ...................................... 73 . Checking for Refrigerant Leaks .............................93 .
Removal and Installation ....................................... 73 . Checking System for Leaks Using the Fluorescent
REMOVAL .......................................................... 73 . Leak Detector .........................................................93
.
INSTALLATION ................................................... 73 . Dye Injection ..........................................................93
.
Electronic Refrigerant Leak Detector .....................94 .
PRECAUTIONS FOR HANDLING LEAK
MTC-2
DETECTOR ....................................................... 94
. LUBRICANT .......................................................... 97
.
CHECKING PROCEDURE ................................ 95 . REFRIGERANT ..................................................... 97
. A
SERVICE DATA AND SPECIFICATIONS (SDS) ..... 97 . ENGINE IDLING SPEED ....................................... 97 .
COMPRESSOR .................................................... 97
. BELT TENSION ..................................................... 97
.
B
C
D
E
F
G
H
I
MTC
K
L
M
MTC-3
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" BJS000CW
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 Procedures without Cowl Top Cover BJS000CX
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
Precautions for Working with HFC-134a (R-134a) BJS000CY
WARNING:
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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