Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Altima 2006-2009 Approved TB Nissan Altima 2007 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
. : Component Description ........................................20
.
G
DIAGNOSIS AND REPAIR WORKFLOW ......... 4
. CAN COMMUNICATION SYSTEM ................... 21
Work Flow ................................................................ 4
. System Description .................................................21
.
INSPECTION AND ADJUSTMENT .................... 5
. DIAGNOSIS SYSTEM (ECM) ........................... 22 H
Description & Inspection .......................................... 5
. CONSULT-III Function ...........................................22
.
FUNCTION DIAGNOSIS .............................. 8
. SELF-DIAGNOSIS FUNCTION ......................... 23
HAC
FUNCTION INFORMATION ............................... 8
. WITH LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM ..........23 .
WITH LEFT AND RIGHT VENTILATION TEMPER- WITH LEFT AND RIGHT VENTILATION TEM- J
ATURE SEPARATELY CONTROL SYSTEM ............ 8 . PERATURE SEPARATELY CONTROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEM- : Diagnosis Description ...........................................23
.
PERATURE SEPARATELY CONTROL SYSTEM
: Component Part Location ...................................... 8
. COMPONENT DIAGNOSIS ........................ 29
. K
WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM LAN SYSTEM CIRCUIT .................................... 29
: Component's role ................................................. 11
. Description ..............................................................29
. L
Diagnosis Procedure ..............................................29 .
REFRIGERATION SYSTEM .............................13
.
Refrigerant Cycle ................................................... 13
. MODE DOOR MOTOR ...................................... 32
Description ..............................................................32
. M
Refrigerant System Protection ............................... 13 .
Diagnosis Procedure ..............................................33 .
AUTOMATIC AIR CONDITIONER SYSTEM ....14
AIR MIX DOOR MOTOR ................................... 35 N
WITH LEFT AND RIGHT VENTILATION TEMPER- Description ..............................................................35
.
ATURE SEPARATELY CONTROL SYSTEM .......... 14 . Diagnosis Procedure ..............................................36 .
WITH LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM INTAKE DOOR MOTOR ................................... 38 O
: System Diagram ................................................... 14
. Description ..............................................................38
.
WITH LEFT AND RIGHT VENTILATION TEM- Diagnosis Procedure ..............................................39 .
PERATURE SEPARATELY CONTROL SYSTEM P
: System Description .............................................. 14
.
BLOWER MOTOR ............................................ 41
Description ..............................................................41
.
WITH LEFT AND RIGHT VENTILATION TEM-
Component Function Check ...................................42 .
PERATURE SEPARATELY CONTROL SYSTEM
Diagnosis Procedure ..............................................43 .
: Component Part Location .................................... 20
.
MAGNET CLUTCH ........................................... 47
Description ..............................................................47
.
Revision: October 2006 HAC-1 2007 Altima
Component Function Check .................................. 47. MEMORY FUNCTION DOES NOT OPERATE... 88
Diagnosis Procedure ............................................. 48
. Description ............................................................. 88
.
Diagnosis Procedure .............................................. 88 .
AMBIENT SENSOR .......................................... 51
.
Description ............................................................. 51
. PRECAUTION ............................................ 89
Diagnosis Procedure ............................................. 51 .
Component Inspection & Special Repair Require- PRECAUTIONS ................................................ 89
.
ment ....................................................................... 52
. Supplemental Restraint System (SRS) "AIR BAG"
and "SEAT BELT PRE-TENSIONER" ................... 89 .
IN-VEHICLE SENSOR ...................................... 54
. Precaution Necessary for Steering Wheel Rota-
Component Description ......................................... 54 . tion after Battery Disconnect .................................. 89
.
Diagnosis Procedure ............................................. 54 . Working with HFC-134a (R-134a) .......................... 89 .
Component Inspection & Special Repair Require- Precaution for Service Equipment ......................... 90.
ment ....................................................................... 55
. MANUAL AIR CONDITIONER
SUNLOAD SENSOR ........................................ 57
. BASIC INSPECTION .................................. 92
Description ............................................................. 57
.
Diagnosis Procedure ............................................. 57 . DIAGNOSIS AND REPAIR WORKFLOW ........ 92
.
Component Inspection & Special Repair Require- Work Flow .............................................................. 92
.
ment ....................................................................... 58
.
INSPECTION AND ADJUSTMENT .................. 93
.
INTAKE SENSOR ............................................. 60
. Description & Inspection ........................................ 93
.
Description ............................................................. 60
.
Component Function Check .................................. 60 . FUNCTION DIAGNOSIS ............................ 95
Diagnosis Procedure ............................................. 60 .
FUNCTION INFORMATION ............................. 95
.
POWER SUPPLY AND GROUND CIRCUIT
FOR AUTO AMP. .............................................. 62
. WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM ... 95
Description ............................................................. 62
.
WITHOUT LEFT AND RIGHT VENTILATION
Component Function Check .................................. 62 .
TEMPERATURE SEPARATELY CONTROL
Diagnosis Procedure ............................................. 62 .
SYSTEM : Component Part Location .................... 95.
ECU DIAGNOSIS ....................................... 64
. WITHOUT LEFT AND RIGHT VENTILATION
TEMPERATURE SEPARATELY CONTROL
AIR CONDITIONER CONTROL ....................... 64
. SYSTEM : Component's role ................................. 98
.
Reference Value .................................................... 64
.
Wiring Diagram ...................................................... 65
. AIR CONDITIONER CONTROL ...................... 100
.
SYMPTOM DIAGNOSIS ............................ 74
. WITHOUT LEFT AND RIGHT VENTILATION TEM-
PERATURE SEPARATELY CONTROL SYSTEM . 100
AIR CONDITIONER CONTROL ....................... 74
. WITHOUT LEFT AND RIGHT VENTILATION
Symptom Matrix Chart ......................................... 74
. TEMPERATURE SEPARATELY CONTROL
SYSTEM : System Diagram ................................. 100
.
INSUFFICIENT COOLING ................................ 75
. WITHOUT LEFT AND RIGHT VENTILATION
Description ............................................................. 75
. TEMPERATURE SEPARATELY CONTROL
Component Function Check .................................. 75 . SYSTEM : System Description ............................ 100
.
Diagnostic Work Sheet .......................................... 76 . WITHOUT LEFT AND RIGHT VENTILATION
Inspection Procedure ............................................. 79 . TEMPERATURE SEPARATELY CONTROL
SYSTEM : Component Part Location .................. 106 .
INSUFFICIENT HEATING ................................ 83
. WITHOUT LEFT AND RIGHT VENTILATION
Description ............................................................. 83
. TEMPERATURE SEPARATELY CONTROL
Component Function Check .................................. 83 . SYSTEM : Component Description ...................... 106
.
NOISE ............................................................... 85
. CAN COMMUNICATION SYSTEM ................. 107
.
Description ............................................................. 85
. System Description .............................................. 107
.
Component Function Check .................................. 85 .
DIAGNOSIS SYSTEM (ECM) .......................... 108
.
SELF-DIAGNOSIS CANNOT BE PER- CONSULT-III Function ......................................... 108
.
FORMED ........................................................... 87
.
Description ............................................................. 87
. COMPONENT DIAGNOSIS ...................... 109
Diagnosis Procedure ............................................. 87 .
LAN SYSTEM CIRCUIT .................................. 109
.
Revision: October 2006 HAC-2 2007 Altima
Description ........................................................... 109
. AIR CONDITIONER CONTROL ...................... 129
Diagnosis Procedure ............................................ 109 . Reference Value ................................................... 129
. A
Wiring Diagram ..................................................... 130
.
MODE DOOR MOTOR .................................... 112
.
Description ........................................................... 112
. SYMPTOM DIAGNOSIS ........................... 143
.
Diagnosis Procedure ............................................ 113 . B
AIR CONDITIONER CONTROL ...................... 143
AIR MIX DOOR MOTOR ................................. 115
. Symptom Matrix Chart ........................................ 143
.
Description ........................................................... 115
. C
Diagnosis Procedure ............................................ 116 . INSUFFICIENT COOLING .............................. 144
Description ............................................................ 144
.
INTAKE DOOR MOTOR ................................. 118
. Component Function Check ................................. 144 .
Description ........................................................... 118
. D
Diagnostic Work Sheet ......................................... 145 .
Diagnosis Procedure ............................................ 118 . Inspection Procedure ............................................ 148 .
BLOWER MOTOR ........................................... 120
. INSUFFICIENT HEATING ............................... 152 E
Description ........................................................... 120
. Description ............................................................ 152
.
Component Function Check ................................. 120 . Component Function Check ................................. 152 .
Diagnosis Procedure ............................................ 121 .
NOISE .............................................................. 154 F
MAGNET CLUTCH .......................................... 124
. Description ............................................................ 154
.
Component Function Check ................................. 124. Component Function Check ................................. 154 .
Diagnosis Procedure ............................................ 124
. G
PRECAUTION ........................................... 156
.
POWER SUPPLY AND GROUND CIRCUIT
FOR AUTO AMP. ............................................ 127
. PRECAUTIONS ............................................... 156
Description ........................................................... 127
. Supplemental Restraint System (SRS) "AIR BAG" H
Component Function Check ................................. 127 . and "SEAT BELT PRE-TENSIONER" .................. 156 .
Diagnosis Procedure ............................................ 127 . Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ................................ 156
. HAC
ECU DIAGNOSIS ...................................... 129
. Working with HFC-134a (R-134a) ........................ 156 .
Precaution for Service Equipment ........................ 157
.
J
K
L
M
N
O
P
Revision: October 2006 HAC-3 2007 Altima
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000000993137
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, "Description & Inspection".
>> GO TO 3..
3.GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to HAC-74, "Symptom Matrix Chart" 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 Altima
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
A
Description & Inspection INFOID:0000000000993138
DESCRIPTION B
The purpose of the operational check is to confirm that the system operates properly.
CONDITIONS:
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