Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2006-2007 Approved G35-V35-Sedan-2007 hac

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hac


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VENTILATION, HEATER & AIR CONDITIONER

                                                                                                                                                                   A




HEATER & AIR CONDITIONING CONTROL SYSTEM
                                                                                 SECTION                   HAC                                                     B



                                                                                                                                                                   C


                                                                                                                                                                   D


                                                                                                                                                                   E
                                                                 CONTENTS
         AUTOMATIC AIR CONDITIONER                                                 WITH LEFT AND RIGHT VENTILATION TEM-                                            F
                                                                                   PERATURE SEPARATELY CONTROL SYSTEM
BASIC INSPECTION ................................... 4
                                                .                                  : Description ............................................................18
                                                                                                                                                          .
                                                                                   WITH LEFT AND RIGHT VENTILATION TEM-                                            G
DIAGNOSIS AND REPAIR WORKFLOW ......... 4
                                  .                                                PERATURE SEPARATELY CONTROL SYSTEM
  Work Flow ................................................................ 4
                                                                      .            : Fail-Safe ...............................................................19
                                                                                                                                                          .
                                                                                   WITH LEFT AND RIGHT VENTILATION TEM-
INSPECTION AND ADJUSTMENT .................... 5
                                         .                                                                                                                         H
                                                                                   PERATURE SEPARATELY CONTROL SYSTEM
WITHOUT LEFT AND RIGHT VENTILATION TEM-                                            : Component Part Location .....................................19      .
PERATURE SEPARATELY CONTROL SYSTEM ...... 5                                        WITH LEFT AND RIGHT VENTILATION TEM-
 WITHOUT LEFT AND RIGHT VENTILATION                                                PERATURE SEPARATELY CONTROL SYSTEM                                              HAC
 TEMPERATURE SEPARATELY CONTROL                                                    : Component's role .................................................21 .
 SYSTEM : Description & Inspection ......................... 5
                                                      .
                                                                                 AUTOMATIC AIR CONDITIONER SYSTEM .... 23                                          J
WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM ............ 9                .                  WITHOUT LEFT AND RIGHT VENTILATION TEM-
                                                                                 PERATURE SEPARATELY CONTROL SYSTEM ....23
 WITH LEFT AND RIGHT VENTILATION TEM-
 PERATURE SEPARATELY CONTROL SYSTEM                                               WITHOUT LEFT AND RIGHT VENTILATION                                               K
 : Description & Inspection ........................................ 9
                                                              .                   TEMPERATURE SEPARATELY CONTROL
                                                                                  SYSTEM : System Diagram ...................................23
                                                                                                                                         .
FUNCTION DIAGNOSIS ............................. 14
                                             .                                    WITHOUT LEFT AND RIGHT VENTILATION                                               L
                                                                                  TEMPERATURE SEPARATELY CONTROL
COMPRESSOR CONTROL FUNCTION ...........14
                                   .                                              SYSTEM : System Description ...............................23
                                                                                                                                         .
                                                                                  WITHOUT LEFT AND RIGHT VENTILATION
WITHOUT LEFT AND RIGHT VENTILATION TEM-                                           TEMPERATURE SEPARATELY CONTROL                                                   M
PERATURE SEPARATELY CONTROL SYSTEM .... 14                                        SYSTEM : Component Part Location .....................29
                                                                                                                                         .
 WITHOUT LEFT AND RIGHT VENTILATION                                               WITHOUT LEFT AND RIGHT VENTILATION
 TEMPERATURE SEPARATELY CONTROL                                                   TEMPERATURE SEPARATELY CONTROL                                                   N
 SYSTEM : Description ........................................... 14
                                                               .                  SYSTEM : Component Description ........................31
                                                                                                                                         .
 WITHOUT LEFT AND RIGHT VENTILATION
 TEMPERATURE SEPARATELY CONTROL                                                  WITH LEFT AND RIGHT VENTILATION TEMPER-
 SYSTEM : Fail-Safe ............................................... 14
                                                               .                 ATURE SEPARATELY CONTROL SYSTEM ..........32                     .                O
 WITHOUT LEFT AND RIGHT VENTILATION                                               WITH LEFT AND RIGHT VENTILATION TEM-
 TEMPERATURE SEPARATELY CONTROL                                                   PERATURE SEPARATELY CONTROL SYSTEM
 SYSTEM : Component Part Location ..................... 15     .                  : System Diagram ...................................................32
                                                                                                                                                  .                P
 WITHOUT LEFT AND RIGHT VENTILATION                                               WITH LEFT AND RIGHT VENTILATION TEM-
 TEMPERATURE SEPARATELY CONTROL                                                   PERATURE SEPARATELY CONTROL SYSTEM
 SYSTEM : Component's role ................................. 17.                  : System Description ...............................................32
                                                                                                                                                  .
                                                                                  WITH LEFT AND RIGHT VENTILATION TEM-
WITH LEFT AND RIGHT VENTILATION TEMPER-                                           PERATURE SEPARATELY CONTROL SYSTEM
ATURE SEPARATELY CONTROL SYSTEM .......... 18
                                      .                                           : Component Part Location .....................................39
                                                                                                                                                  .


Revision: October 2006                                                    HAC-1                                                         2007 G35 Sedan
  WITH LEFT AND RIGHT VENTILATION TEM-                                           MAGNET CLUTCH CONTROL SYSTEM ........ 68
                                                                                                                   .
  PERATURE SEPARATELY CONTROL SYSTEM                                               Description ............................................................. 68
                                                                                                                                                         .
  : Component Description ....................................... 41
                                                              .
                                                                                 COMPONENT DIAGNOSIS ....................... 69
CAN COMMUNICATION SYSTEM .................. 43
                                        .
  System Description ................................................ 43
                                                                  .              MODE DOOR MOTOR ..................................... 69
                                                                                                                                   .
                                                                                   Description ............................................................. 69
                                                                                                                                                         .
DIAGNOSIS SYSTEM (AUTO AMP.) ............... 44
                                         .                                         Component Function Check ................................. 69         .
                                                                                   Diagnosis Procedure .............................................. 69 .
WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ... 44                                        AIR MIX DOOR MOTOR .................................. 72
                                                                                                                                   .
 WITHOUT LEFT AND RIGHT VENTILATION
 TEMPERATURE SEPARATELY CONTROL                                                  WITHOUT LEFT AND RIGHT VENTILATION TEM-
 SYSTEM : Diagnosis Description .......................... 44
                                                       .                         PERATURE SEPARATELY CONTROL SYSTEM ... 72
 WITHOUT LEFT AND RIGHT VENTILATION                                               WITHOUT LEFT AND RIGHT VENTILATION
 TEMPERATURE SEPARATELY CONTROL                                                   TEMPERATURE SEPARATELY CONTROL
 SYSTEM : CONSULT-III Function ......................... 49
                                                       .                          SYSTEM : Description ........................................... 72
                                                                                                                                               .
                                                                                  WITHOUT LEFT AND RIGHT VENTILATION
WITH LEFT AND RIGHT VENTILATION TEMPER-                                           TEMPERATURE SEPARATELY CONTROL
ATURE SEPARATELY CONTROL SYSTEM .......... 50                   .                 SYSTEM : Component Function Check ............... 72         .
 WITH LEFT AND RIGHT VENTILATION TEM-                                             WITHOUT LEFT AND RIGHT VENTILATION
 PERATURE SEPARATELY CONTROL SYSTEM                                               TEMPERATURE SEPARATELY CONTROL
 : Diagnosis Description .......................................... 50
                                                                .                 SYSTEM : Diagnosis Procedure ............................ 72 .
 WITH LEFT AND RIGHT VENTILATION TEM-
 PERATURE SEPARATELY CONTROL SYSTEM                                              WITH LEFT AND RIGHT VENTILATION TEMPER-
 : CONSULT-III Function ........................................ 55
                                                                .                ATURE SEPARATELY CONTROL SYSTEM .......... 74                          .
                                                                                  WITH LEFT AND RIGHT VENTILATION TEM-
MODE DOOR CONTROL SYSTEM ................. 57
                                       .                                          PERATURE SEPARATELY CONTROL SYSTEM
  Description ............................................................. 57
                                                                        .         : Description ........................................................... 74
                                                                                                                                                        .
                                                                                  WITH LEFT AND RIGHT VENTILATION TEM-
AIR MIX DOOR CONTROL SYSTEM .............. 59
                                       .                                          PERATURE SEPARATELY CONTROL SYSTEM
WITHOUT LEFT AND RIGHT VENTILATION TEM-                                           : Component Function Check ............................... 75         .
PERATURE SEPARATELY CONTROL SYSTEM ... 59                                         WITH LEFT AND RIGHT VENTILATION TEM-
 WITHOUT LEFT AND RIGHT VENTILATION                                               PERATURE SEPARATELY CONTROL SYSTEM
 TEMPERATURE SEPARATELY CONTROL                                                   : Diagnosis Procedure ............................................ 75 .
 SYSTEM : Description ........................................... 59
                                                              .
                                                                                 INTAKE DOOR MOTOR ................................... 80
                                                                                                                                   .
WITH LEFT AND RIGHT VENTILATION TEMPER-                                            Description ............................................................. 80
                                                                                                                                                         .
ATURE SEPARATELY CONTROL SYSTEM .......... 60                          .           Component Function Check ................................. 80         .
 WITH LEFT AND RIGHT VENTILATION TEM-                                              Diagnosis Procedure .............................................. 80 .
 PERATURE SEPARATELY CONTROL SYSTEM
 : Description ........................................................... 60
                                                                       .
                                                                                 BLOWER MOTOR ............................................ 83
                                                                                                                                       .
                                                                                 WITHOUT LEFT AND RIGHT VENTILATION TEM-
INTAKE DOOR CONTROL SYSTEM ............... 62
                                       .
                                                                                 PERATURE SEPARATELY CONTROL SYSTEM ... 83
  Description ............................................................. 62
                                                                        .
                                                                                  WITHOUT LEFT AND RIGHT VENTILATION
BLOWER MOTOR CONTROL SYSTEM ......... 64
                                  .                                               TEMPERATURE SEPARATELY CONTROL
                                                                                  SYSTEM : Description ........................................... 83
                                                                                                                                               .
WITHOUT LEFT AND RIGHT VENTILATION TEM-                                           WITHOUT LEFT AND RIGHT VENTILATION
PERATURE SEPARATELY CONTROL SYSTEM ... 64                                         TEMPERATURE SEPARATELY CONTROL
 WITHOUT LEFT AND RIGHT VENTILATION                                               SYSTEM : Component Function Check ............... 83         .
 TEMPERATURE SEPARATELY CONTROL                                                   WITHOUT LEFT AND RIGHT VENTILATION
 SYSTEM : Description ........................................... 64
                                                              .                   TEMPERATURE SEPARATELY CONTROL
                                                                                  SYSTEM : Diagnosis Procedure ............................ 83 .
WITH LEFT AND RIGHT VENTILATION TEMPER-
                                                                                  WITHOUT LEFT AND RIGHT VENTILATION
ATURE SEPARATELY CONTROL SYSTEM .......... 65                          .
                                                                                  TEMPERATURE SEPARATELY CONTROL
 WITH LEFT AND RIGHT VENTILATION TEM-
                                                                                  SYSTEM : Component Inspection ......................... 86   .
 PERATURE SEPARATELY CONTROL SYSTEM
 : Description ........................................................... 65
                                                                       .         WITH LEFT AND RIGHT VENTILATION TEMPER-
                                                                                 ATURE SEPARATELY CONTROL SYSTEM .......... 86
                                                                                                                        .


 Revision: October 2006                                                   HAC-2                                                        2007 G35 Sedan
  WITH LEFT AND RIGHT VENTILATION TEM-                                           AUTO AMP. ..................................................... 107
  PERATURE SEPARATELY CONTROL SYSTEM                                               Reference Value ................................................... 107.        A
  : Description ........................................................... 86
                                                                       .           Wiring Diagram -- AIR CONDITIONER CON-
  WITH LEFT AND RIGHT VENTILATION TEM-                                             TROL SYSTEM -- ................................................ 109    .
  PERATURE SEPARATELY CONTROL SYSTEM                                               Fail-Safe ............................................................... 115
                                                                                                                                                          .        B
  : Component Function Check ............................... 86        .
  WITH LEFT AND RIGHT VENTILATION TEM-                                           SYMPTOM DIAGNOSIS ........................... 117
                                                                                                                             .
  PERATURE SEPARATELY CONTROL SYSTEM
  : Diagnosis Procedure ............................................ 86.         AIR CONDITIONER CONTROL ...................... 117                                C
  WITH LEFT AND RIGHT VENTILATION TEM-                                             Diagnosis Chart By Symptom ............................... 117
                                                                                                                                           .
  PERATURE SEPARATELY CONTROL SYSTEM                                             INSUFFICIENT COOLING .............................. 119
  : Component Inspection ......................................... 89  .                                                                                           D
                                                                                   Description ............................................................ 119
                                                                                                                                                         .
MAGNET CLUTCH ............................................90
                                                      .                            Inspection procedure ............................................ 119 .
  Description ............................................................. 90
                                                                       .         INSUFFICIENT HEATING ............................... 122                          E
  Component Function Check ................................... 90      .
                                                                                   Description ............................................................ 122
                                                                                                                                                         .
  Diagnosis Procedure .............................................. 90.
                                                                                   Inspection procedure ............................................ 122 .
  Component Inspection ........................................... 92  .
                                                                                 NOISE .............................................................. 124          F
AMBIENT SENSOR ..........................................93
                                                     .                             Description ............................................................ 124
                                                                                                                                                         .
  Description ............................................................. 93
                                                                       .
                                                                                   Inspection procedure ............................................ 124 .
  Component Function Check ................................. 93        .
                                                                                                                                                                   G
  Diagnosis Procedure .............................................. 93.         SELF-DIAGNOSIS CANNOT BE PER-
  Component Inspection ........................................... 94  .         FORMED ......................................................... 126
                                                                                   Description ............................................................ 126
                                                                                                                                                         .
IN-VEHICLE SENSOR ......................................96
                                                    .                                                                                                              H
                                                                                   Inspection procedure ............................................ 126 .
  Description ............................................................. 96
                                                                       .
  Component Function Check ................................. 96        .         MEMORY FUNCTION DOES NOT OPERATE. 127
  Diagnosis Procedure .............................................. 97.           Description ............................................................ 127
                                                                                                                                                         .         HAC
  Component Inspection ........................................... 98  .           Inspection procedure ............................................ 127 .
SUNLOAD SENSOR .........................................99
                                                    .                            PRECAUTION ........................................... 128
                                                                                                                                      .
  Description ............................................................. 99
                                                                       .                                                                                           J
  Component Function Check ................................. 99        .         PRECAUTIONS ............................................... 128
  Diagnosis Procedure .............................................. 99.           Precaution for Supplemental Restraint System
  Component Inspection ......................................... 100   .           (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-                                         K
                                                                                   SIONER" .............................................................. 128
                                                                                                                                                       .
INTAKE SENSOR ........................................... 102
                                                       .                           Precaution Necessary for Steering Wheel Rota-
  Description ........................................................... 102
                                                                       .           tion after Battery Disconnect ................................ 128  .
  Component Function Check ............................... 102         .                                                                                           L
                                                                                   Precaution for Procedure without Cowl Top Cover 128                 ..
  Diagnosis Procedure ............................................ 102 .           Precautions For Xenon Headlamp Service .......... 129               .
  Component Inspection ......................................... 103   .           Working with HFC-134a (R-134a) ........................ 129         .
                                                                                   General Refrigerant Precaution ............................ 130     .           M
POWER SUPPLY AND GROUND CIRCUIT
                                                                                   Refrigerant Connection ......................................... 130.
FOR AUTO AMP. ............................................ 105
                                                        .
                                                                                   Service Equipment ............................................... 134
                                                                                                                                                       .
  Description ........................................................... 105
                                                                       .
                                                                                                                                                                   N
  Component Function Check ................................. 105       .         COMPRESSOR ............................................... 137
  Diagnosis Procedure ............................................ 106 .           General Precautions ............................................. 137
                                                                                                                                                  .
ECU DIAGNOSIS ...................................... 107
                                                   .                             FLUORESCENT LEAK DETECTOR .............. 138                                      O
                                                                                   General Precautions ............................................. 138
                                                                                                                                                  .

                                                                                                                                                                   P




Revision: October 2006                                                    HAC-3                                                         2007 G35 Sedan
                            DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >                                                 [AUTOMATIC AIR CONDITIONER]

BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow                                                                                     INFOID:0000000000959897




DETAILED FLOW
1.LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. (Get detailed information about the conditions and environment when the symp-
tom occurs.)

         >> GO TO 2.
2.VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to HAC-5, "WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL SYSTEM : Description & Inspection" (Without left and right venti-
lation temperature separately control system) or HAC-9, "WITH LEFT AND RIGHT VENTILATION TEMPERA-
TURE SEPARATELY CONTROL SYSTEM : Description & Inspection" (With left and right ventilation
temperature separately control system).

         >> GO TO 3.
3.GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis (Refer to HAC-117, "Diagnosis Chart By Symptom" below).

         >> GO TO 4.
4.REPAIR OR REPLACE
Repair or replace the specific parts

         >> GO TO 5.
5.FINAL CHECK
Final check.
Is the inspection result normal?
  YES >> CHECK OUT
  NO      >> GO TO 3.




Revision: October 2006                           HAC-4                                     2007 G35 Sedan
                                INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >                                                    [AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
                                                                                                                           A
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY
CONTROL SYSTEM
                                                                                                                           B
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM : Description & Inspection                                                           INFOID:0000000000959898


                                                                                                                           C
DESCRIPTION
The purpose of the operational check is to check if the individual system operates properly.
                                                                                                                           D
         Conditions        : Engine running at normal operating temperature

INSPECTION PROCEDURE
                                                                                                                           E
Memory Function
1. Turn temperature control dial clockwise until 32



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