Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Primera 2000.2005 Approved Nissan Note 2006 ATC
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AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
A
SECTION
AUTOMATIC AIR CONDITIONER
ATC 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. System Construction ............................................. 20
. I
O-RING AND REFRIGERANT CONNECTION..... 6 AIR MIX DOOR CONTROL (AUTOMATIC TEM-
Precautions for Servicing Compressor .................... 8 . PERATURE CONTROL) .................................... 20 .
Precautions for Service Equipment ......................... 8 . FAN SPEED CONTROL ..................................... 20 . ATC
RECOVERY/RECYCLING EQUIPMENT ............. 8 . INTAKE DOOR CONTROL ................................ 20 .
ELECTRONIC LEAK DETECTOR ....................... 8 . OUTLET DOOR CONTROL ............................... 20 .
VACUUM PUMP .................................................. 9 . MAGNET CLUTCH CONTROL .......................... 21 .
K
MANIFOLD GAUGE SET ..................................... 9 . SELF-DIAGNOSTIC SYSTEM ........................... 21 .
SERVICE HOSES ................................................ 9 . Description of Control System ............................... 22 .
SERVICE COUPLERS ....................................... 10 . Control Operation .................................................. 22
.
REFRIGERANT WEIGHT SCALE ..................... 10 . DISPLAY SCREEN ............................................. 23 . L
CALIBRATING ACR4 WEIGHT SCALE ............. 10 . AUTO SWITCH .................................................. 23.
CHARGING CYLINDER ..................................... 10 . TEMPERATURE CONTROL SWITCH (POTEN-
Precautions for Leak Detection Dye .......................11 . TIO TEMPERATURE CONTROL) ...................... 23 . M
IDENTIFICATION ................................................11 . RECIRCULATION (REC) SWITCH .................... 23 .
IDENTIFICATION LABEL FOR VEHICLE ...........11 . FRESH (FRE) SWITCH ..................................... 23 .
PREPARATION ........................................................ 12
. DEFROSTER (DEF) SWITCH ............................ 23 .
HFC-134a (R-134a) Service Tools and Equipment.. 12 . REAR WINDOW DEFOGGER SWITCH ............ 23 .
Commercial Service Tools ..................................... 14 . OFF SWITCH ..................................................... 23
.
REFRIGERATION SYSTEM .................................... 15 . A/C SWITCH ...................................................... 23
.
Refrigerant Cycle .................................................. 15
. MODE SWITCH ................................................. 23 .
REFRIGERANT FLOW ...................................... 15 . FAN SWITCH ..................................................... 23
.
FREEZE PROTECTION .................................... 15 . Discharge Air Flow ................................................ 24
.
Refrigerant System Protection .............................. 15 . System Description ................................................ 25
.
REFRIGERANT PRESSURE SENSOR ............ 15 . SWITCHES AND THEIR CONTROL FUNCTION 25 ...
PRESSURE RELIEF VALVE .............................. 15 . CAN Communication System Description ............. 25 .
Component Layout ................................................ 16. TROUBLE DIAGNOSIS ........................................... 26 .
CONSULT-II Function (BCM) ................................ 26 .
CONSULT-II BASIC OPERATION ...................... 26 .
DATA MONITOR ................................................ 26 .
ATC-1
How to Perform Trouble Diagnosis for Quick and Magnet Clutch Circuit .............................................78 .
Accurate Repair ..................................................... 27 . INSPECTION FLOW ...........................................78 .
WORK FLOW ..................................................... 27 . SYSTEM DESCRIPTION ....................................79 .
SYMPTOM TABLE ............................................. 27 . DIAGNOSTIC PROCEDURE FOR MAGNET
ComponentParts and Harness Connector Location 28 ... CLUTCH .............................................................79 .
ENGINE COMPARTMENT ................................. 28 . COMPONENT INSPECTION ..............................85 .
PASSENGER COMPARTMENT ......................... 29 . Insufficient Cooling .................................................86 .
Circuit Diagram ...................................................... 30 . INSPECTION FLOW ...........................................86 .
Wiring Diagram --A/C-- CR Engine Models ......... 31 . PERFORMANCE TEST DIAGNOSIS .................88 .
Wiring Diagram --A/C--HR Engine Models .......... 35 . PERFORMANCE CHART ...................................90 .
Wiring Diagram --A/C-- K9K Engine Models ....... 39 . TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
Wiring Diagram --PTC/H-- K9K Engine LHD Mod- SURE ..................................................................91
.
els .......................................................................... 43
. Insufficient Heating ................................................94 .
Auto Amp. Terminals and Reference Value ........... 44 . INSPECTION FLOW ...........................................94 .
PIN CONNECTOR TERMINAL LAYOUT ........... 44 . Noise ......................................................................96
.
TERMINALS AND REFERENCE VALUE FOR INSPECTION FLOW ...........................................96 .
AUTO AMP. ........................................................ 44 . Self-diagnosis ........................................................97.
Self-diagnosis Function ....................................... .. 46 . INSPECTION FLOW ...........................................97 .
DESCRIPTION ................................................... 46 . Memory Function ...................................................98 .
FUNCTION CONFIRMATION PROCEDURE ..... 48 . INSPECTION FLOW ...........................................98 .
AUXILIARY MECHANISM: TEMPERATURE Ambient Sensor Circuit ..........................................99 .
SETTING TRIMMER .......................................... 54 . COMPONENT DESCRIPTION ...........................99 .
Operational Check ................................................. 55 . AMBIENT TEMPERATURE INPUT PROCESS...99
CHECKING MEMORY FUNCTION .................... 55 . DIAGNOSTIC PROCEDURE FOR AMBIENT
CHECKING BLOWER ........................................ 55 . SENSOR .............................................................99 .
CHECKING DISCHARGE AIR ........................... 55 . COMPONENT INSPECTION ............................ 101 .
CHECKING RECIRCULATION ........................... 56 . In-vehicle Sensor Circuit ...................................... 102 .
CHECKING TEMPERATURE INCREASE ......... 56 . COMPONENT DESCRIPTION ......................... 102 .
CHECKING TEMPERATURE DECREASE ........ 56 . DIAGNOSTIC PROCEDURE FOR IN-VEHICLE
CHECK A/C SWITCH ......................................... 56 . SENSOR ........................................................... 102 .
CHECKING AUTO MODE .................................. 57 . COMPONENT INSPECTION ............................ 104 .
Power Supply and Ground Circuit for Auto Amp. ... 57 Sunload Sensor Circuit ........................................ 105 .
INSPECTION FLOW .......................................... 57 . COMPONENT DESCRIPTION ......................... 105 .
COMPONENT DESCRIPTION ........................... 58 . SUNLOAD INPUT PROCESS .......................... 105 .
DIAGNOSTIC PROCEDURE FORA/C SYSTEM 58 ... DIAGNOSTIC PROCEDURE FOR SUNLOAD
Mode Door Motor Circuit ....................................... 60 . SENSOR ........................................................... 105 .
INSPECTION FLOW .......................................... 60 . COMPONENT INSPECTION ............................ 107 .
SYSTEM DESCRIPTION ................................... 61 . Intake Sensor Circuit ............................................ 108 .
COMPONENT DESCRIPTION ........................... 62 . COMPONENT DESCRIPTION ......................... 108 .
DIAGNOSTIC PROCEDURE FOR MODE DIAGNOSTICPROCEDUREFORINTAKESEN-
DOOR MOTOR .................................................. 63 . SOR .................................................................. 108
.
Air Mix Door Motor Circuit ..................................... 64 . COMPONENT INSPECTION ............................ 110 .
INSPECTION FLOW .......................................... 64 . Engine Coolant Temperature Circuit .................... 111 .
SYSTEM DESCRIPTION ................................... 65 . CONTROLLER ....................................................... 112 .
COMPONENT DESCRIPTION ........................... 66 . Removal and Installation of Controller ................. 112 .
DIAGNOSTIC PROCEDURE FOR AIR MIX REMOVAL ......................................................... 112 .
DOOR MOTOR .................................................. 67 . INSTALLATION ................................................. 112 .
Intake Door Motor Circuit ....................................... 68 . Disassembly and Assembly of Controller ............ 112 .
INSPECTION FLOW .......................................... 68 . DISASSEMBLY ................................................. 112 .
SYSTEM DESCRIPTION ................................... 69 . ASSEMBLY ....................................................... 113 .
COMPONENT DESCRIPTION ........................... 70 . AMBIENT SENSOR ............................................... 114 .
DIAGNOSTIC PROCEDURE FOR INTAKE Removal and Installation ...................................... 114 .
DOOR MOTOR .................................................. 70 . REMOVAL ......................................................... 114 .
Blower Motor Circuit .............................................. 71 . INSTALLATION ................................................. 114 .
INSPECTION FLOW .......................................... 71 . IN-VEHICLE SENSOR ........................................... 115 .
SYSTEM DESCRIPTION ................................... 72 . Removal and Installation ...................................... 115 .
DIAGNOSTIC PROCEDURE FOR BLOWER REMOVAL ......................................................... 115 .
MOTOR .............................................................. 73 . INSTALLATION ................................................. 115 .
COMPONENT INSPECTION ............................. 77 .
ATC-2
SUNLOAD SENSOR ..............................................116 . Components ........................................................ 137.
Removal and Installation ......................................116 . CR ENGINE MODELS ..................................... 137 . A
REMOVAL .........................................................116
. HR ENGINE MODELS ..................................... 138 .
INSTALLATION .................................................116 . K9K ENGINE MODELS .................................... 139 .
INTAKE SENSOR ...................................................117 . Removal and Installation of Compressor ............. 140 . B
Removal and Installation ......................................117 . REMOVAL ........................................................ 140 .
REMOVAL .........................................................117
. INSTALLATION ................................................ 140 .
INSTALLATION .................................................117 . CHECK DISC TO PULLEY CLEARANCE ........ 141 .
A/C UNIT ASSEMBLY ............................................118 . Removal and Installation for Pipe and Hose ....... 141 . C
Removal and Installation ......................................118 . REMOVAL ........................................................ 141 .
REMOVAL .........................................................118
. INSTALLATION ................................................ 141 .
INSTALLATION ................................................ 120 . Removal and Installation for Refrigerant Pressure D
Disassembly and Assembly ................................ 121 . Sensor ................................................................. 142
.
BLOWER MOTOR ................................................. 123 . REMOVAL AND INSTALLATION ..................... 142 .
Removal and Installation ..................................... 123 . Removal and Installation for Condenser (Models E
REMOVAL ........................................................ 123
. without Integrated Condenser) ............................ 142 .
INSTALLATION ................................................ 123 . REMOVAL ........................................................ 142 .
INTAKE DOOR MOTOR ........................................ 124 . INSTALLATION ................................................ 143 .
Removal and Installation ..................................... 124 . Removal and Installation for Condenser (Models F
REMOVAL ........................................................ 124
. with Integrated Condenser) ................................. 143 .
INSTALLATION ................................................ 124 . REMOVAL ........................................................ 143 .
AIR MIX DOOR MOTOR ........................................ 125 . INSTALLATION ................................................ 143 . G
Removal and Installation ..................................... 125 . RemovalandInstallationforLiquidTank(HREngine
REMOVAL ........................................................ 125
. with A/T Models) .................................................. 144.
INSTALLATION ................................................ 125 . REMOVAL ........................................................ 144 . H
MODE DOOR MOTOR .......................................... 126 . INSTALLATION ................................................ 144 .
Removal and Installation ..................................... 126 . RemovalandInstallationfor LiquidTank (ExceptHR
REMOVAL ........................................................ 126
. Engine with A/T Models) ...................................... 144 .
I
INSTALLATION ................................................ 126 . REMOVAL ........................................................ 144 .
POWER TRANSISTOR ......................................... 127 . INSTALLATION ................................................ 145 .
Removal and Installation ..................................... 127 . Removal and Installation for Evaporator ............. 145 .
REMOVAL ........................................................ 127
. REMOVAL ........................................................ 145 . ATC
INSTALLATION ................................................ 127 . INSTALLATION ................................................ 145 .
HEATER CORE ..................................................... 128 . Removal and Installation for Expansion Valve ..... 145 .
Removal and Installation ..................................... 128 . REMOVAL ........................................................ 145 . K
REMOVAL ........................................................ 128
. INSTALLATION ................................................ 146 .
INSTALLATION ................................................ 128 . Checking for Refrigerant Leaks ........................... 147 .
AIR CONDITIONER FILTER .................................. 129 . Checking System for Leaks Using the Fluorescent L
Removal and Installation ..................................... 129 . Leak Detector ...................................................... 147
.
FUNCTION ....................................................... 129
. Dye Injection ........................................................ 147
.
REPLACEMENT TIMING ................................. 129 . Electronic Refrigerant Leak Detector ................... 148 .
REPLACEMENT PROCEDURES .................... 129 . PRECAUTIONS FOR HANDLING LEAK M
DUCTS AND GRILLES ......................................... 130 . DETECTOR ...................................................... 148 .
Removal and Installation ..................................... 130 . CHECKING PROCEDURE .............................. 149 .
REMOVAL ........................................................ 130
. SERVICE DATA AND SPECIFICATIONS (SDS) ... 151 .
INSTALLATION ................................................ 134 . COMPRESSOR ................................................... 151 .
REFRIGERANT LINES .......................................... 135 . LUBRICANT ........................................................ 151 .
HFC-134a (R-134a) Service Procedure .............. 135 . REFRIGERANT ................................................... 151 .
SETTING OF SERVICE TOOLS AND EQUIP- ENGINE IDLING SPEED ..................................... 151 .
MENT ............................................................... 135
. BELT TENSION ................................................... 151 .
ATC-3
PRECAUTIONS
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" BJS000AI
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 BJS000AJ
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) BJS000AK
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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