Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2006_Q45 atc

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.




Image preview - the first page of the document
atc


>> Download atc documenatation <<

Text preview - extract from the document
AUTOMATIC AIR CONDITIONER


J AIR CONDITIONER

                                                                                                                                                            A




                                                                                  SECTION
                                                            AUTOMATIC AIR CONDITIONER
                                                                                                            ATC                                             B



                                                                                                                                                            C


                                                                                                                                                            D


                                                                                                                                                            E
                                                               CONTENTS
PRECAUTIONS ......................................................... 5
                                                                     .         LUBRICANT ............................................................. 23
                                                                                                                                                   .        F
 Precautions for Supplemental Restraint System                                  Maintenance of Lubricant Quantity in Compressor 23                 ...
 (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                          LUBRICANT ....................................................... 23
                                                                                                                                                   .
 SIONER" ................................................................. 5
                                                                     .            LUBRICANT RETURN OPERATION ................. 23                  .        G
 Precautions for Working with HFC-134a (R-134a) 5                    .....        LUBRICANT ADJUSTING PROCEDURE FOR
   CONTAMINATED REFRIGERANT ...................... 6                 .            COMPONENTS REPLACEMENT EXCEPT
 General Refrigerant Precautions ............................. 6     .            COMPRESSOR ................................................. 24  .
                                                                                                                                                            H
 Precautions for Refrigerant Connection .................. 6         .            LUBRICANT ADJUSTING PROCEDURE FOR
   FEATURES OF NEW TYPE REFRIGERANT                                               COMPRESSOR REPLACEMENT ...................... 24                 .
   CONNECTION ..................................................... 6.         AIR CONDITIONER CONTROL .............................. 26           .
   O-RING AND REFRIGERANT CONNECTION..... 7                                     Description of Air Conditioner LAN Control System 26               ...       I
 Precautions for Servicing Compressor .................... 9         .          System Construction ............................................. 26
                                                                                                                                                   .
 Precautions for Service Equipment ......................... 9       .            OPERATION ....................................................... 27
                                                                                                                                                   .
   RECOVERY/RECYCLING EQUIPMENT ............. 9                      .            TRANSMISSION DATA AND TRANSMISSION                                        ATC
   ELECTRONIC LEAK DETECTOR ....................... 9                .            ORDER .............................................................. 27
                                                                                                                                                   .
   VACUUM PUMP ................................................ 10   .            AIR MIX DOOR CONTROL (AUTOMATIC TEM-
   MANIFOLD GAUGE SET ................................... 10         .            PERATURE CONTROL) .................................... 28        .
                                                                                                                                                            K
   SERVICE HOSES .............................................. 10   .            FAN SPEED CONTROL ..................................... 28       .
   SERVICE COUPLERS ........................................11       .            INTAKE DOOR CONTROL ................................ 28          .
   REFRIGERANT WEIGHT SCALE ......................11                 .            MODE DOOR CONTROL .................................. 28          .
   CHARGING CYLINDER ......................................11        .            MAGNET CLUTCH CONTROL .......................... 29              .         L
 Precautions for Leak Detection Dye ...................... 12        .            SELF-DIAGNOSIS SYSTEM ............................. 29           .
   IDENTIFICATION ............................................... 12 .          Description of Control System ............................... 30   .
   IDENTIFICATION LABEL FOR VEHICLE .......... 12                    .          Control Operation .................................................. 31
                                                                                                                                                   .        M
PREPARATION ........................................................ 13
                                                                     .            DISPLAY SCREEN ............................................. 31  .
 Special Service Tools ............................................ 13
                                                                     .            AUTO SWITCH (DRIVER SIDE) ........................ 31            .
 HFC-134a (R-134a) Service Tools and Equipment 14                    ...          AUTO SWITCH (PASSENGER SIDE) ............... 31                  .
 Commercial Service Tools ..................................... 16   .            TEMPERATURE DIAL (POTENTIO TEMPERA-
REFRIGERATION SYSTEM .................................... 17         .            TURE CONTROL) (DRIVER SIDE) .................... 31              .
 Refrigerant Cycle .................................................. 17
                                                                     .            TEMPERATURE DIAL (POTENTIO TEMPERA-
   REFRIGERANT FLOW ...................................... 17        .            TURE CONTROL) (PASSENGER SIDE) ........... 31                    .
   FREEZE PROTECTION .................................... 17         .            INTAKE SWITCH ................................................ 32.
 Refrigerant System Protection .............................. 17     .            DEFROSTER (DEF) SWITCH ............................ 32           .
   REFRIGERANT PRESSURE SENSOR ............ 17                       .            OFF SWITCH ..................................................... 32
                                                                                                                                                   .
   PRESSURE RELIEF VALVE .............................. 17           .            MODE SWITCH (DRIVER SIDE) ....................... 32             .
 V-6 Variable Displacement Compressor ................ 18            .            MODE SWITCH (PASSENGER SIDE) ............... 32                  .
   GENERAL INFORMATION ................................ 18           .            ECON (ECONOMY) SWITCH ............................ 32            .
   DESCRIPTION ................................................... 19.            FAN SWITCH ..................................................... 32
                                                                                                                                                   .
 Component Layout ................................................ 22.            DUAL SWITCH ................................................... 32
                                                                                                                                                   .
                                                                                  REAR CONTROL SWITCH ................................ 32          .


Revision: 2005 November                                                 ATC-1                                                               2006 Q45
 Fail-Safe Function ................................................. 32
                                                                      .        Rear Ventilator Door Motor Circuit .........................79           .
 Discharge Air Flow ................................................ 33
                                                                      .          COMPONENT DESCRIPTION ...........................79                    .
 System Description ................................................ 34
                                                                      .          DIAGNOSIS PROCEDURE FOR REAR VENTI-
   SWITCHES AND THEIR CONTROL FUNCTION 34                             ...        LATOR DOOR MOTOR ......................................79              .
TROUBLE DIAGNOSIS ........................................... 35      .        Rear Control Switch Circuit ....................................80       .
 How to Perform Trouble Diagnosis for Quick and                                  DIAGNOSIS PROCEDURE FOR REAR CON-
 Accurate Repair ..................................................... 35
                                                                      .          TROL SWITCH ...................................................80      .
   WORK FLOW ..................................................... 35 .        Rear Control Cancel Switch ...................................80         .
   SYMPTOM TABLE ............................................. 35     .          DIAGNOSIS PROCEDURE FOR REAR CON-
 Component Parts and Harness Connector Location 37                    ...        TROL CANCEL SWITCH ....................................80              .
   ENGINE COMPARTMENT ................................. 37            .        Blower Motor Circuit ...............................................81   .
   PASSENGER COMPARTMENT ......................... 38                 .          INSPECTION FLOW ...........................................81          .
 Schematic .............................................................. 39
                                                                      .          SYSTEM DESCRIPTION ....................................81              .
 Wiring Diagram -- A/C -- ...................................... 40   .          COMPONENT DESCRIPTION ...........................83                    .
 Auto Amp. Terminals and Reference Value ........... 50               .          DIAGNOSIS PROCEDURE FOR BLOWER
   PIN CONNECTOR TERMINAL LAYOUT ........... 50                       .          MOTOR ...............................................................83.
   TERMINALS AND REFERENCE VALUE FOR                                             COMPONENT INSPECTION ..............................85                  .
   AUTO AMP. ........................................................ 50
                                                                      .        Magnet Clutch Circuit .............................................86    .
 Self-diagnosis Function ......................................... 53 .          INSPECTION FLOW ...........................................86          .
   DESCRIPTION ................................................... 53 .          SYSTEM DESCRIPTION ....................................87              .
   FUNCTION CONFIRMATION PROCEDURE ..... 54                           .          DIAGNOSIS PROCEDURE FOR MAGNET
   AUXILIARY MECHANISM: TEMPERATURE                                              CLUTCH .............................................................87 .
   SETTING TRIMMER .......................................... 61      .          COMPONENT INSPECTION ..............................92                  .
 Operational Check ................................................. 62
                                                                      .        Insufficient Cooling .................................................93 .
   CHECKING MEMORY FUNCTION .................... 62                   .          INSPECTION FLOW ...........................................93          .
   CHECKING BLOWER ........................................ 62        .          PERFORMANCE TEST DIAGNOSIS .................95                         .
   CHECKING DISCHARGE AIR ........................... 62              .          PERFORMANCE CHART ...................................97                .
   CHECKING INTAKE AIR (INTAKE SWITCH) ..... 63                       .          TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
   CHECKING TEMPERATURE DECREASE ........ 63                          .          SURE ..................................................................98
                                                                                                                                                        .
   CHECKING TEMPERATURE INCREASE ......... 63                         .          DIAGNOSIS PROCEDURE FOR INSUFFI-
   CHECK ECON (ECONOMY) MODE .................. 63                    .          CIENT COOLING .............................................. 100       .
   CHECKING AUTO MODE .................................. 63           .        Insufficient Heating .............................................. 102  .
 Power Supply and Ground Circuit for Auto Amp. ... 64                            INSPECTION FLOW ......................................... 102          .
   INSPECTION FLOW .......................................... 64      .        Noise .................................................................... 103
                                                                                                                                                        .
   COMPONENT DESCRIPTION ........................... 64               .          INSPECTION FLOW ......................................... 103          .
   DIAGNOSIS PROCEDURE FOR A/C SYSTEM... 65                                    Self-Diagnosis ...................................................... 104.
 LAN System Circuit ............................................... 66.          INSPECTION FLOW ......................................... 104          .
   DIAGNOSIS PROCEDURE FOR LAN CIRCUIT 66                             ...      Memory Function ................................................. 105    .
 Mode Door Motor Circuit ....................................... 70   .          INSPECTION FLOW ......................................... 105          .
   INSPECTION FLOW .......................................... 70      .        ECON (ECONOMY) MODE ................................. 106                .
   SYSTEM DESCRIPTION ................................... 71          .          INSPECTION FLOW ......................................... 106          .
   COMPONENT DESCRIPTION ........................... 72               .        A/C Display is Malfunctioning .............................. 107         .
   DIAGNOSIS PROCEDURE FOR MODE DOOR                                             DIAGNOSIS PROCEDURE .............................. 107                 .
   MOTOR .............................................................. 72
                                                                      .        A/C Operation is Malfunctioning .......................... 108           .
 Air Mix Door Motor Circuit ..................................... 73  .          DIAGNOSIS PROCEDURE .............................. 108                 .
   INSPECTION FLOW .......................................... 73      .        Ambient Sensor Circuit ........................................ 110      .
   SYSTEM DESCRIPTION ................................... 74          .          COMPONENT DESCRIPTION ......................... 110                    .
   COMPONENT DESCRIPTION ........................... 75               .          AMBIENT TEMPERATURE INPUT PROCESS . 110
   DIAGNOSIS PROCEDURE FOR AIR MIX DOOR                                          DIAGNOSIS PROCEDURE FOR AMBIENT
   MOTOR .............................................................. 75
                                                                      .          SENSOR ........................................................... 110 .
 Air Mix Door Motor PBR Circuit ............................. 75      .          COMPONENT INSPECTION ............................ 112                  .
   DIAGNOSIS PROCEDURE FOR AIR MIX DOOR                                        In-Vehicle Sensor Circuit ...................................... 112     .
   MOTOR PBR ...................................................... 75.          COMPONENT DESCRIPTION ......................... 112                    .
 Intake Door Motor Circuit ....................................... 76 .          DIAGNOSIS PROCEDURE FOR IN-VEHICLE
   INSPECTION FLOW .......................................... 76      .          SENSOR ........................................................... 113 .
   SYSTEM DESCRIPTION ................................... 77          .          COMPONENT INSPECTION ............................ 114                  .
   COMPONENT DESCRIPTION ........................... 78               .        Sunload Sensor Circuit ........................................ 115      .
   DIAGNOSIS PROCEDURE FOR INTAKE DOOR                                           COMPONENT DESCRIPTION ......................... 115                    .
   MOTOR .............................................................. 78
                                                                      .          SUNLOAD INPUT PROCESS .......................... 115                   .

Revision: 2005 November                                                 ATC-2                                                                  2006 Q45
    DIAGNOSIS PROCEDURE FOR SUNLOAD                                               IN-CABIN MICROFILTER ...................................... 134           .
    SENSOR ...........................................................115 .         Removal and Installation ..................................... 134      .       A
    COMPONENT INSPECTION ............................117                  .           FUNCTION ....................................................... 134  .
  Intake Sensor Circuit ............................................118   .           REPLACEMENT TIMING ................................. 134              .
    COMPONENT DESCRIPTION .........................118                    .           REPLACEMENT PROCEDURES .................... 134                       .       B
    DIAGNOSIS PROCEDURE FOR INTAKE SEN-                                           HEATER & COOLING UNIT ASSEMBLY .............. 135                         .
    SOR ..................................................................118
                                                                          .         Removal and Installation ..................................... 135      .
    COMPONENT INSPECTION ............................119                  .           REMOVAL ........................................................ 135  .
  Multiplex Communication Circuit ......................... 120           .           INSTALLATION ................................................ 136     .       C
    DIAGNOSIS PROCEDURE FOR MULTIPLEX                                               Disassembly and Assembly ................................. 137          .
    COMMUNICATION CIRCUIT (FRONT CON-                                             HEATER CORE ...................................................... 139    .
    TROLLER) ....................................................... 120  .         Removal and Installation ..................................... 139      .       D
    DIAGNOSIS PROCEDURE FOR MULTIPLEX                                                 REMOVAL ........................................................ 139  .
    COMMUNICATION CIRCUIT (REAR CONTROL                                               INSTALLATION ................................................ 139     .
    SWITCH) .......................................................... 123.       MODE DOOR MOTOR ........................................... 140           .       E
CONTROLLER ...................................................... 125     .         Removal and Installation ..................................... 140      .
  Removal and Installation of Multifunction Switch . 125                              REMOVAL ........................................................ 140  .
    REMOVAL ........................................................ 125  .           INSTALLATION ................................................ 140     .
    INSTALLATION ................................................ 125     .       AIR MIX DOOR MOTOR ........................................ 141           .       F
  Removal and Installation of Rear Control Switch . 125                             Removal and Installation ..................................... 141      .
    REMOVAL ........................................................ 125  .           REMOVAL ........................................................ 141  .
    INSTALLATION ................................................ 125     .           INSTALLATION ................................................ 141     .       G
  Removal and Installation of Rear Control Cancel                                 REAR VENTILATOR DOOR MOTOR .................... 142                       .
  Switch .................................................................. 125
                                                                          .         Removal and Installation ..................................... 142      .
    REMOVAL ........................................................ 125  .           REMOVAL ........................................................ 142  .       H
    INSTALLATION ................................................ 125     .           INSTALLATION ................................................ 142     .
AMBIENT SENSOR ............................................... 126        .       DUCTS AND GRILLES .......................................... 143          .
  Removal and Installation ..................................... 126      .         Removal and Installation ..................................... 143      .
                                                                                                                                                                     I
    REMOVAL ........................................................ 126  .           REMOVAL ........................................................ 143  .
    INSTALLATION ................................................ 126     .           INSTALLATION ................................................ 145     .
IN-VEHICLE SENSOR ........................................... 127         .       REFRIGERANT LINES .......................................... 146          .
  Removal and Installation ..................................... 127      .         HFC-134a (R-134a) Service Procedure .............. 146                  .       ATC
    REMOVAL ........................................................ 127  .           SETTING OF SERVICE TOOLS AND EQUIP-
    INSTALLATION ................................................ 127     .           MENT ............................................................... 146
                                                                                                                                                            .
SUNLOAD SENSOR ............................................. 128          .         Components ........................................................ 148 .       K
  Removal and Installation ..................................... 128      .         Removal and Installation of Compressor ............. 149                .
    REMOVAL ........................................................ 128  .           REMOVAL ........................................................ 149  .
    INSTALLATION ................................................ 128     .           INSTALLATION ................................................ 150     .        L
INTAKE SENSOR .................................................. 129      .         Removal and Installation of Compressor Clutch . 150
  Removal and Installation ..................................... 129      .           REMOVAL ........................................................ 150  .
    REMOVAL ........................................................ 129  .           INSTALLATION ................................................ 152     .
    INSTALLATION ................................................ 129     .         Removal and Installation of Low-Pressure Flexible                               M
BLOWER UNIT ...................................................... 130    .         Hose and Pipe ..................................................... 153 .
  Removal and Installation ..................................... 130      .           REMOVAL ........................................................ 153  .
    REMOVAL ........................................................ 130  .           INSTALLATION ................................................ 154     .
    INSTALLATION ................................................ 130     .         Removal and Installation of High-Pressure Flexible
  Disassembly and Assembly ................................ 131           .         Hose .................................................................... 154
                                                                                                                                                            .
BLOWER MOTOR ................................................. 132        .           REMOVAL ........................................................ 154  .
  Removal and Installation ..................................... 132      .           INSTALLATION ................................................ 155     .
    REMOVAL ........................................................ 132  .         Removal and Installation of High-Pressure Pipe . 155
    INSTALLATION ................................................ 132     .           REMOVAL ........................................................ 155  .
INTAKE DOOR MOTOR ........................................ 133            .           INSTALLATION ................................................ 156     .
  Removal and Installation ..................................... 133      .         Removal and Installation of Refrigerant Pressure
    REMOVAL ........................................................ 133  .         Sensor ................................................................. 156
                                                                                                                                                            .
    INSTALLATION ................................................ 133     .           REMOVAL ........................................................ 156  .
                                                                                      INSTALLATION ................................................ 156     .
                                                                                    Removal and Installation of Condenser ............... 157               .
                                                                                      REMOVAL ........................................................ 157  .
                                                                                      INSTALLATION ................................................ 157     .

Revision: 2005 November                                                    ATC-3                                                                   2006 Q45
 Removal and Installation of Liquid Tank .............. 158         .        Dye Injection ........................................................ 161
                                                                                                                                                    .
   REMOVAL ........................................................ 158
                                                                    .        Electronic Refrigerant Leak Detector ................... 162           .
   INSTALLATION ................................................. 158
                                                                    .          PRECAUTIONS FOR HANDLING LEAK
 Removal and Installation of Evaporator ............... 159         .          DETECTOR ...................................................... 162  .
   REMOVAL ........................................................ 159
                                                                    .          CHECKING PROCEDURE ............................... 163               .
   INSTALLATION ................................................. 159
                                                                    .       SERVICE DATA AND SPECIFICATIONS (SDS) ... 165                           .
 Removal and Installation of Expansion Valve ...... 159             .        Compressor ......................................................... 165
                                                                                                                                                    .
   REMOVAL ........................................................ 159
                                                                    .        Lubricant .............................................................. 165
                                                                                                                                                    .
   INSTALLATION ................................................. 160
                                                                    .        Refrigerant ........................................................... 165
                                                                                                                                                    .
 Checking for Refrigerant Leaks ........................... 161     .        Engine Idling Speed ............................................. 165  .
 Checking System for Leaks Using the Fluorescent                             Belt Tension ......................................................... 165
                                                                                                                                                    .
 Leak Detector ...................................................... 161
                                                                    .




Revision: 2005 November                                              ATC-4                                                                  2006 Q45
                                              PRECAUTIONS

PRECAUTIONS                                                         PFP:00001
                                                                                                                         A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER"                                                                                           NJS0007I


The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along                            B
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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front              C
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:                                                                                                                 D
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.                                                                     E
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.                                                                                    F
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.
                                                                                                                         G
Precautions for Working with HFC-134a (R-134a)                                                                NJS0007J


CAUTION:
q  CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refrigerant are not compatible. If the refrigerants H
   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.                     I
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- ATC
   lowing handling precautions must be observed:



◦ Jabse Service Manual Search 2024 ◦ Jabse PravopisonTap.bg ◦ Other service manual resources online : FixyaeServiceinfo