Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti EX35 2008 Approved files 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 WITHOUT LEFT AND RIGHT VENTILATION TEM- F
PERATURE SEPARATELY CONTROL SYSTEM ....17
BASIC INSPECTION ................................... 5
. WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL G
DIAGNOSIS AND REPAIR WORKFLOW ......... 5
. SYSTEM : Description ............................................17
.
Work Flow ................................................................ 5
. WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL
INSPECTION AND ADJUSTMENT .................... 6
. H
SYSTEM : Fail-Safe ...............................................17
.
WITHOUT LEFT AND RIGHT VENTILATION TEM- WITHOUT LEFT AND RIGHT VENTILATION
PERATURE SEPARATELY CONTROL SYSTEM ...... 6 TEMPERATURE SEPARATELY CONTROL
WITHOUT LEFT AND RIGHT VENTILATION SYSTEM : Component Part Location .....................18 . HAC
TEMPERATURE SEPARATELY CONTROL WITHOUT LEFT AND RIGHT VENTILATION
SYSTEM : Description & Inspection ......................... 6
. TEMPERATURE SEPARATELY CONTROL
WITHOUT LEFT AND RIGHT VENTILATION SYSTEM : Component's role ..................................20. J
TEMPERATURE SEPARATELY CONTROL
WITH LEFT AND RIGHT VENTILATION TEMPER-
SYSTEM : Temperature Setting Trimmer ................ 8
.
ATURE SEPARATELY CONTROL SYSTEM ..........21 .
WITHOUT LEFT AND RIGHT VENTILATION K
WITH LEFT AND RIGHT VENTILATION TEM-
TEMPERATURE SEPARATELY CONTROL
PERATURE SEPARATELY CONTROL SYSTEM
SYSTEM : Foot Position Setting Trimmer ................ 9
.
: Description ............................................................21
.
WITHOUT LEFT AND RIGHT VENTILATION
WITH LEFT AND RIGHT VENTILATION TEM- L
TEMPERATURE SEPARATELY CONTROL
PERATURE SEPARATELY CONTROL SYSTEM
SYSTEM : Inlet Port Memory Function .................. 10
.
: Fail-Safe ...............................................................22
.
WITH LEFT AND RIGHT VENTILATION TEMPER- WITH LEFT AND RIGHT VENTILATION TEM- M
ATURE SEPARATELY CONTROL SYSTEM .......... 11 . PERATURE SEPARATELY CONTROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEM- : Component Part Location .....................................22 .
PERATURE SEPARATELY CONTROL SYSTEM WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM N
: Description & Inspection ...................................... 11
.
WITH LEFT AND RIGHT VENTILATION TEM- : Component's role .................................................24 .
PERATURE SEPARATELY CONTROL SYSTEM
: Temperature Setting Trimmer .............................. 13
.
AUTOMATIC AIR CONDITIONER SYSTEM .... 26 O
WITH LEFT AND RIGHT VENTILATION TEM- WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM PERATURE SEPARATELY CONTROL SYSTEM ....26
: Foot Position Setting Trimmer .............................. 14
. WITHOUT LEFT AND RIGHT VENTILATION P
WITH LEFT AND RIGHT VENTILATION TEM- TEMPERATURE SEPARATELY CONTROL
PERATURE SEPARATELY CONTROL SYSTEM SYSTEM : System Diagram ...................................26
.
: Inlet Port Memory Function .................................. 15
. WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL
FUNCTION DIAGNOSIS ............................. 17
. SYSTEM : System Description ...............................26
.
COMPRESSOR CONTROL FUNCTION ...........17
.
Revision: 2007 November HAC-1 2008 EX35
WITHOUT LEFT AND RIGHT VENTILATION WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL TEMPERATURE SEPARATELY CONTROL
SYSTEM : Component Part Location .................... 31
. SYSTEM : System Description .............................. 52
.
WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL WITH LEFT AND RIGHT VENTILATION TEMPER-
SYSTEM : Component Description ....................... 33
. ATURE SEPARATELY CONTROL SYSTEM .......... 53 .
WITH LEFT AND RIGHT VENTILATION TEM-
WITH LEFT AND RIGHT VENTILATION TEMPER- PERATURE SEPARATELY CONTROL SYSTEM
ATURE SEPARATELY CONTROL SYSTEM .......... 34 . : System Diagram .................................................. 53
.
WITH LEFT AND RIGHT VENTILATION TEM- WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM PERATURE SEPARATELY CONTROL SYSTEM
: System Diagram .................................................. 34
. : System Description .............................................. 53
.
WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM MAGNET CLUTCH CONTROL SYSTEM ........ 55
.
: System Description .............................................. 35
. System Diagram .................................................... 55
.
WITH LEFT AND RIGHT VENTILATION TEM- System Description ................................................ 55
.
PERATURE SEPARATELY CONTROL SYSTEM
DIAGNOSIS SYSTEM (UNIFIED METER & A/
: Component Part Location .................................... 40
.
WITH LEFT AND RIGHT VENTILATION TEM-
C AMP.) ............................................................ 57
.
PERATURE SEPARATELY CONTROL SYSTEM WITHOUT LEFT AND RIGHT VENTILATION TEM-
: Component Description ....................................... 42
. PERATURE SEPARATELY CONTROL SYSTEM ... 57
WITHOUT LEFT AND RIGHT VENTILATION
CAN COMMUNICATION SYSTEM .................. 44
.
TEMPERATURE SEPARATELY CONTROL
System Description ................................................ 44
.
SYSTEM : Diagnosis Description .......................... 57
.
MODE DOOR CONTROL SYSTEM ................. 45
. WITHOUT LEFT AND RIGHT VENTILATION
System Diagram .................................................... 45
. TEMPERATURE SEPARATELY CONTROL
System Description ................................................ 45
. SYSTEM : CONSULT-III Function ......................... 62
.
AIR MIX DOOR CONTROL SYSTEM .............. 47
. WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM .......... 63 .
WITHOUT LEFT AND RIGHT VENTILATION TEM- WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ... 47 PERATURE SEPARATELY CONTROL SYSTEM
WITHOUT LEFT AND RIGHT VENTILATION : Diagnosis Description .......................................... 63
.
TEMPERATURE SEPARATELY CONTROL WITH LEFT AND RIGHT VENTILATION TEM-
SYSTEM : System Diagram .................................. 47
. PERATURE SEPARATELY CONTROL SYSTEM
WITHOUT LEFT AND RIGHT VENTILATION : CONSULT-III Function ......................................... 68
.
TEMPERATURE SEPARATELY CONTROL
SYSTEM : System Description .............................. 47
. COMPONENT DIAGNOSIS ....................... 70
WITH LEFT AND RIGHT VENTILATION TEMPER- MODE DOOR MOTOR ..................................... 70
.
ATURE SEPARATELY CONTROL SYSTEM .......... 48 . Description ............................................................. 70
.
WITH LEFT AND RIGHT VENTILATION TEM- Component Function Check ................................. 70 .
PERATURE SEPARATELY CONTROL SYSTEM Diagnosis Procedure .............................................. 70 .
: System Diagram .................................................. 48
.
WITH LEFT AND RIGHT VENTILATION TEM- AIR MIX DOOR MOTOR .................................. 73
.
PERATURE SEPARATELY CONTROL SYSTEM WITHOUT LEFT AND RIGHT VENTILATION TEM-
: System Description .............................................. 48
. PERATURE SEPARATELY CONTROL SYSTEM ... 73
INTAKE DOOR CONTROL SYSTEM ............... 50
. WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL
System Diagram .................................................... 50
.
SYSTEM : Description ........................................... 73
.
System Description ................................................ 50
.
WITHOUT LEFT AND RIGHT VENTILATION
BLOWER MOTOR CONTROL SYSTEM ......... 52
. TEMPERATURE SEPARATELY CONTROL
SYSTEM : Component Function Check ............... 73 .
WITHOUT LEFT AND RIGHT VENTILATION TEM- WITHOUT LEFT AND RIGHT VENTILATION
PERATURE SEPARATELY CONTROL SYSTEM ... 52 TEMPERATURE SEPARATELY CONTROL
WITHOUT LEFT AND RIGHT VENTILATION SYSTEM : Diagnosis Procedure ............................ 73 .
TEMPERATURE SEPARATELY CONTROL
SYSTEM : System Diagram .................................. 52
. WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM .......... 74
.
Revision: 2007 November HAC-2 2008 EX35
WITH LEFT AND RIGHT VENTILATION TEM- Diagnosis Procedure ..............................................95
.
PERATURE SEPARATELY CONTROL SYSTEM Component Inspection ............................................96
. A
: Description ........................................................... 74
.
WITH LEFT AND RIGHT VENTILATION TEM- SUNLOAD SENSOR ......................................... 97
PERATURE SEPARATELY CONTROL SYSTEM Description ..............................................................97
.
Component Function Check .................................97 . B
: Component Function Check ............................... 75 .
WITH LEFT AND RIGHT VENTILATION TEM- Diagnosis Procedure ..............................................97 .
PERATURE SEPARATELY CONTROL SYSTEM Component Inspection ............................................98 .
: Diagnosis Procedure ............................................ 75. C
INTAKE SENSOR ........................................... 100
INTAKE DOOR MOTOR ...................................78
. Description ............................................................ 100
.
Description ............................................................. 78
. Component Function Check ............................... 100 .
D
Component Function Check ................................. 78 . Diagnosis Procedure ............................................ 100 .
Diagnosis Procedure .............................................. 78. Component Inspection .......................................... 101 .
BLOWER MOTOR .............................................80
. POWER SUPPLY AND GROUND CIRCUIT E
FOR AUTO AMP. ............................................ 103
WITHOUT LEFT AND RIGHT VENTILATION TEM- Description ............................................................ 103
.
PERATURE SEPARATELY CONTROL SYSTEM .... 80 Component Function Check ................................. 104 . F
WITHOUT LEFT AND RIGHT VENTILATION Diagnosis Procedure ............................................ 104 .
TEMPERATURE SEPARATELY CONTROL
SYSTEM : Description ........................................... 80
. ECU DIAGNOSIS ...................................... 105
.
WITHOUT LEFT AND RIGHT VENTILATION G
TEMPERATURE SEPARATELY CONTROL ECM ................................................................. 105
SYSTEM : Component Function Check ............... 80 . Reference Value ................................................... 105
.
WITHOUT LEFT AND RIGHT VENTILATION H
AUTO AMP. ..................................................... 122
TEMPERATURE SEPARATELY CONTROL
Reference Value ................................................... 122.
SYSTEM : Diagnosis Procedure ............................ 81.
Wiring Diagram - AIR CONDITIONER CONTROL
WITHOUT LEFT AND RIGHT VENTILATION HAC
SYSTEM - ............................................................. 124
.
TEMPERATURE SEPARATELY CONTROL
Fail-Safe ............................................................... 130
.
SYSTEM : Component Inspection ......................... 83 .
WITH LEFT AND RIGHT VENTILATION TEMPER- SYMPTOM DIAGNOSIS ........................... 132
. J
ATURE SEPARATELY CONTROL SYSTEM .......... 83 . AIR CONDITIONER CONTROL ...................... 132
WITH LEFT AND RIGHT VENTILATION TEM-
Diagnosis Chart By Symptom ............................... 132
.
PERATURE SEPARATELY CONTROL SYSTEM K
: Description ........................................................... 83
. INSUFFICIENT COOLING .............................. 134
WITH LEFT AND RIGHT VENTILATION TEM- Description ............................................................ 134
.
PERATURE SEPARATELY CONTROL SYSTEM Inspection procedure ............................................ 134 .
L
: Component Function Check ............................... 84 .
WITH LEFT AND RIGHT VENTILATION TEM- INSUFFICIENT HEATING ............................... 137
PERATURE SEPARATELY CONTROL SYSTEM Description ............................................................ 137
.
: Diagnosis Procedure ............................................ 84. Inspection procedure ............................................ 137 . M
WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM NOISE .............................................................. 139
: Component Inspection ......................................... 86 . Description ............................................................ 139
.
N
Inspection procedure ............................................ 139 .
MAGNET CLUTCH ............................................88
.
Description ............................................................. 88
. SELF-DIAGNOSIS CANNOT BE PER-
Component Function Check ................................... 88 . FORMED ......................................................... 141 O
Diagnosis Procedure .............................................. 88. Description ............................................................ 141
.
Inspection procedure ............................................ 141 .
AMBIENT SENSOR ..........................................91
. P
Description ............................................................. 91
. MEMORY FUNCTION DOES NOT OPERATE. 142
Component Function Check ................................. 91 . Description ............................................................ 142
.
Diagnosis Procedure .............................................. 91. Inspection procedure ............................................ 142 .
Component Inspection ........................................... 92 .
PRECAUTION ........................................... 143
.
IN-VEHICLE SENSOR ......................................94
.
Description ............................................................. 94
.
PRECAUTIONS ............................................... 143
Component Function Check ................................. 94 .
Revision: 2007 November HAC-3 2008 EX35
Precaution for Supplemental Restraint System Refrigerant Connection ........................................ 145
.
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Service Equipment ............................................... 149
.
SIONER" ...............................................................143
.
Precaution Necessary for Steering Wheel Rota- COMPRESSOR ............................................... 152
.
tion after Battery Disconnect ................................143 . General Precautions ............................................ 152
.
Precaution for Procedure without Cowl Top Cover 144 ..
LEAK DETECTION DYE ................................. 153
.
Precautions For Xenon Headlamp Service ..........144 .
General Precautions ............................................ 153
.
Working with HFC-134a (R-134a) ........................144 .
General Refrigerant Precaution ............................145 .
Revision: 2007 November HAC-4 2008 EX35
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
BASIC INSPECTION A
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000003545559
B
DETAILED FLOW
1.LISTEN TO CUSTOMER COMPLAINT C
Listen to customer complaint. (Get detailed information about the conditions and environment when the symp-
tom occurs.)
D
>> GO TO 2.
2.VERIFY THE SYMPTOM WITH OPERATIONAL CHECK E
Verify the symptom with operational check. Refer to HAC-6, "WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL SYSTEM : Description & Inspection" (Without left and right venti-
lation temperature separately control system) or HAC-11, "WITH LEFT AND RIGHT VENTILATION TEMPER- F
ATURE SEPARATELY CONTROL SYSTEM : Description & Inspection" (With left and right ventilation
temperature separately control system).
G
>> GO TO 3.
3.GO TO APPROPRIATE TROUBLE DIAGNOSIS
H
Go to appropriate trouble diagnosis (Refer to HAC-132, "Diagnosis Chart By Symptom" below).
>> GO TO 4.
HAC
4.REPAIR OR REPLACE
Repair or replace the specific parts.
J
>> GO TO 5.
5.FINAL CHECK K
Final check.
Is the inspection result normal?
YES >> CHECK OUT L
NO >> GO TO 3.
M
N
O
P
Revision: 2007 November HAC-5 2008 EX35
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY
CONTROL SYSTEM
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM : Description & Inspection INFOID:0000000003545560
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally.
Conditions : Engine running at normal operating temperature
INSPECTION PROCEDURE
Memory Function
1. Turn temperature control dial clockwise until 32◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo