Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Titan 2004-2009 Approved Nissan Titan 2009 HAC
<< Back | HomeMost 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
>> Download HAC documenatation <<
Text preview - extract from the document
VENTILATION, HEATER & AIR CONDITIONER
HAC
A
B
SECTION
HEATER & AIR CONDITIONING CONTROL SYSTEM C
D
E
CONTENTS
AUTOMATIC AIR CONDITIONER Mode Door Motor Component Function Check ......23. F
Mode Door Motor Diagnosis Procedure .................24
.
BASIC INSPECTION ................................... 5
.
AIR MIX DOOR MOTOR ................................... 28
G
DIAGNOSIS AND REPAIR WORKFLOW ......... 5
. System Description .................................................28 .
How to Perform Trouble Diagnosis For Quick And Air Mix Door Motor Component Function Check ....29
Accurate Repair ....................................................... 5
. Air Mix Door Motor (Driver) Diagnosis Procedure....30
Air Mix Door Motor (Passenger) Diagnosis Proce- H
INSPECTION AND ADJUSTMENT .................... 6
. dure ........................................................................33
.
Operational Check ................................................... 6
.
INTAKE DOOR MOTOR ................................... 37 HAC
FUNCTION DIAGNOSIS .............................. 8
. System Description .................................................37
.
Intake Door Motor Component Function Check .....38 .
FUNCTION INFORMATION ............................... 8
. Intake Door Motor Diagnosis Procedure ................39 .
Component Part Location ........................................ 8
. J
Symptom Table ...................................................... 10
. DEFROSTER DOOR MOTOR CIRCUIT ........... 41
System Description .................................................41
.
REFRIGERATION SYSTEM .............................11
. Defroster Door Motor Component Function Check
Refrigerant Cycle ................................................... 11
. K
....41
Refrigerant System Protection ............................... 11 . Defroster Door Motor Diagnosis Procedure ...........42 .
AUTOMATIC AIR CONDITIONER SYSTEM ....13 BLOWER MOTOR CONTROL SYSTEM .......... 46 L
Control System Diagram ........................................ 13
. System Description .................................................46
.
Control System Description .................................... 13
. Front Blower Motor Component Function Check ....47
Discharge Air Flow ................................................. 15
. Front Blower Motor Diagnosis Procedure ...............48 . M
Switches And Their Control Function ..................... 16 . Front Blower Motor Component Inspection ............51 .
DIAGNOSIS SYSTEM (HVAC) .........................17
. MAGNET CLUTCH ........................................... 53
CONSULT-III Function (HVAC) .............................. 17
. N
System Description .................................................53
.
DIAGNOSIS SYSTEM (BCM) ...........................19
. Magnet Clutch Component Function Check ...........53 .
CONSULT-III Function (BCM - COMMON ITEM).... 19 Magnet Clutch Diagnosis Procedure ......................54 .
CONSULT-III Function (BCM - AUTO AIR CON- O
WATER VALVE CIRCUIT ................................. 58
DITIONER) ............................................................. 19
.
Description ..............................................................58
.
SELF-DIAGNOSIS FUNCTION .........................21
. Water Valve Diagnosis Procedure ..........................58 .
P
Front Air Control Self-Diagnosis ............................. 21
. AMBIENT SENSOR .......................................... 60
Front Air Control Self-Diagnosis Code Chart ......... 21 . Component Description ..........................................60
.
COMPONENT DIAGNOSIS ........................ 22
. Ambient Sensor Diagnosis Procedure ....................60 .
Ambient Sensor Component Inspection .................61 .
MODE DOOR MOTOR ......................................22
.
System Description ................................................ 22
.
IN-VEHICLE SENSOR ...................................... 63
Revision: November 2008 HAC-1 2009 Titan
Component Description ......................................... 63
. How to Perform Trouble Diagnosis For Quick And
In-Vehicle Sensor Diagnosis Procedure ................ 63 . Accurate Repair ..................................................... 99
.
In-Vehicle Sensor Component Inspection ............. 65 .
INSPECTION AND ADJUSTMENT ................. 100
.
OPTICAL SENSOR .......................................... 66
. Operational Check ............................................... 100
.
Component Description ......................................... 66
.
Optical Sensor Diagnosis Procedure ..................... 66 . FUNCTION DIAGNOSIS ........................... 102
INTAKE SENSOR ............................................. 68
. MANUAL A/C IDENTIFICATION TABLE ........ 102
.
System Description ................................................ 68
. Application Table ................................................. 102
.
Intake Sensor Diagnosis Procedure ...................... 68 .
Intake Sensor Component Inspection ................... 69 .
FUNCTION INFORMATION ............................ 103
.
Component Part Location .................................... 103 .
POWER SUPPLY AND GROUND CIRCUIT Symptom Table .................................................... 105
.
FOR CONTROLLER ......................................... 70
.
REFRIGERATION SYSTEM ............................ 106
.
Component Description ......................................... 70 .
Refrigerant Cycle ................................................. 106
.
Front Air Control Component Function Check ....... 70 .
Refrigerant System Protection ............................. 106 .
Front Air Control Power and Ground Diagnosis
Procedure .............................................................. 71
. MANUAL AIR CONDITIONER SYSTEM ........ 108
.
Control System Diagram ...................................... 108.
ECU DIAGNOSIS ....................................... 72
. Control System Description ................................. 108 .
AIR CONDITIONER CONTROL ....................... 72
. Discharge Air Flow ............................................... 110
.
Front Air Control Terminals Reference Values ...... 72 . Switches And Their Control Function ................... 110 .
Wiring Diagram ...................................................... 74
. DIAGNOSIS SYSTEM (HVAC) ........................ 112
.
SYMPTOM DIAGNOSIS ............................ 83
. CONSULT-III Function (HVAC) ........................... 112
.
AIR CONDITIONER CONTROL ....................... 83
. DIAGNOSIS SYSTEM (BCM) .......................... 113
.
Symptom Matrix Chart ......................................... 83
. CONSULT-III Function (BCM - COMMON ITEM) . 113
CONSULT-III Function (BCM - AUTO AIR CON-
INSUFFICIENT COOLING ................................ 84
. DITIONER) ........................................................... 113
.
Component Function Check .................................. 84 .
Diagnostic Work Flow ............................................ 85
.
SELF-DIAGNOSIS FUNCTION ....................... 115
.
Performance Chart ................................................ 87
. Front Air Control Self-Diagnosis .......................... 115
.
Trouble Diagnoses for Abnormal Pressure ........... 88 . Front Air Control Self-Diagnosis Code Chart ....... 115 .
INSUFFICIENT HEATING ................................ 92
. COMPONENT DIAGNOSIS ...................... 116
Component Function Check .................................. 92
. MANUAL A/C IDENTIFICATION TABLE ........ 116
.
NOISE ............................................................... 94
. Application Table ................................................. 116
.
Component Function Check .................................. 94
. MODE DOOR MOTOR .................................... 117
.
MEMORY FUNCTION DOES NOT OPERATE... 95 System Description .............................................. 117
.
Memory Function Check ........................................ 95
. Mode Door Motor Component Function Check ... 117 .
Mode Door Motor Diagnosis Procedure ............... 118 .
PRECAUTION ............................................ 96
.
AIR MIX DOOR MOTOR ................................. 122
.
PRECAUTIONS ................................................ 96
. System Description .............................................. 122
.
Supplemental Restraint System (SRS) "AIR BAG" Air Mix Door Motor Component Function Check . 122
and "SEAT BELT PRE-TENSIONER" ................... 96 . Air Mix Door Motor Diagnosis Procedure ............. 123 .
Working with HFC-134a (R-134a) ......................... 96
.
Precaution for Service Equipment ......................... 97
.
INTAKE DOOR MOTOR .................................. 127
.
System Description .............................................. 127
.
MANUAL A/C (TYPE 1) Intake Door Motor Component Function Check ... 127 .
BASIC INSPECTION .................................. 98
. Intake Door Motor Diagnosis Procedure .............. 128 .
MANUAL A/C IDENTIFICATION TABLE ......... 98
. DEFROSTER DOOR MOTOR CIRCUIT ......... 130
.
Application Table ................................................... 98
. System Description .............................................. 130
.
Defroster Door Motor Component Function Check
DIAGNOSIS AND REPAIR WORKFLOW ........ 99
. . 130
Defroster Door Motor Diagnosis Procedure ......... 131 .
Revision: November 2008 HAC-2 2009 Titan
BLOWER MOTOR CONTROL SYSTEM ........ 135
. PRECAUTIONS ............................................... 180
System Description .............................................. 135
. Supplemental Restraint System (SRS) "AIR BAG" A
Front Blower Motor Component Function Check .. 135 and "SEAT BELT PRE-TENSIONER" .................. 180 .
Front Blower Motor Diagnosis Procedure ............ 136 . Working with HFC-134a (R-134a) ........................ 180
.
Front Blower Motor Component Inspection .......... 139 . Precaution for Service Equipment ........................ 181
. B
MANUAL A/C (TYPE 2)
MAGNET CLUTCH .......................................... 141
.
System Description .............................................. 141
. BASIC INSPECTION ................................ 182
.
Magnet Clutch Component Function Check ........ 141 . C
Magnet Clutch Diagnosis Procedure .................... 142 . MANUAL A/C IDENTIFICATION TABLE ....... 182
Application Table .................................................. 182
.
WATER VALVE CIRCUIT ............................... 146
. D
Description ........................................................... 146
. DIAGNOSIS AND REPAIR WORKFLOW ...... 183
Water Valve Diagnosis Procedure ....................... 146 . How to Perform Trouble Diagnosis For Quick And
Accurate Repair .................................................... 183
.
AMBIENT SENSOR ........................................ 148
. E
Component Description ........................................ 148
. INSPECTION AND ADJUSTMENT ................ 184
Ambient Sensor Diagnosis Procedure ................. 148 . Operational Check ................................................ 184
.
Ambient Sensor Component Inspection ............... 149 . F
FUNCTION DIAGNOSIS ........................... 186
.
INTAKE SENSOR ........................................... 151
.
System Description .............................................. 151
. MANUAL A/C IDENTIFICATION TABLE ....... 186
Intake Sensor Diagnosis Procedure ..................... 151 . Application Table .................................................. 186
. G
Intake Sensor Component Inspection .................. 152 .
FUNCTION INFORMATION ............................ 187
POWER SUPPLY AND GROUND CIRCUIT Component Part Location ..................................... 187
.
H
FOR CONTROLLER ....................................... 153
. Symptom Table .................................................... 189
.
Component Description ........................................ 153 .
REFRIGERATION SYSTEM ........................... 190
Front Air Control Component Function Check ..... 153 .
Refrigerant Cycle .................................................. 190
. HAC
Front Air Control Power and Ground Diagnosis
Refrigerant System Protection .............................. 190 .
Procedure ............................................................. 154
.
MANUAL AIR CONDITIONER SYSTEM ........ 192
ECU DIAGNOSIS ...................................... 155
. Control System Diagram ...................................... 192
. J
MANUAL A/C IDENTIFICATION TABLE ....... 155
. Control System Description .................................. 192
.
Application Table .................................................. 155
. Discharge Air Flow ............................................... 193
.
Switches And Their Control Function ................... 194 . K
AIR CONDITIONER CONTROL ...................... 156
.
Front Air Control Terminals Reference Values .... 156 . DIAGNOSIS SYSTEM (BCM) ......................... 196
Wiring Diagram .................................................... 158
. CONSULT-III Function (BCM - COMMON ITEM).. 196
L
CONSULT-III Function (BCM - AUTO AIR CON-
SYMPTOM DIAGNOSIS ........................... 166
. DITIONER) ........................................................... 196
.
MANUAL A/C IDENTIFICATION TABLE ....... 166
. COMPONENT DIAGNOSIS ...................... 198
. M
Application Table .................................................. 166
.
MANUAL A/C IDENTIFICATION TABLE ....... 198
AIR CONDITIONER CONTROL ...................... 167
. Application Table .................................................. 198
.
N
Symptom Matrix Chart ........................................ 167
.
MODE DOOR MOTOR .................................... 199
INSUFFICIENT COOLING .............................. 168
. System Description ............................................... 199
.
Component Function Check ................................. 168 . Mode Door Motor Component Function Check .... 199 . O
Diagnostic Work Flow .......................................... 169
. Mode Door Motor Diagnosis Procedure ............... 200 .
Performance Chart ............................................... 171
.
Trouble Diagnoses for Abnormal Pressure .......... 172 . AIR MIX DOOR MOTOR ................................. 204
System Description ............................................... 204
. P
INSUFFICIENT HEATING ............................... 176
. Air Mix Door Motor Component Function Check .. 204
Component Function Check ................................. 176
. Air Mix Door Motor Diagnosis Procedure ............. 205 .
NOISE .............................................................. 178
. INTAKE DOOR MOTOR ................................. 209
Component Function Check ................................. 178
. System Description ............................................... 209
.
Intake Door Motor Component Function Check ... 209 .
PRECAUTION ........................................... 180
. Intake Door Motor Diagnosis Procedure .............. 210 .
Revision: November 2008 HAC-3 2009 Titan
DEFROSTER DOOR MOTOR CIRCUIT ........ 212
. MANUAL A/C IDENTIFICATION TABLE ........ 234
.
System Description ...............................................212
. Application Table ................................................. 234
.
Defroster Door Motor Component Function Check
..212 AIR CONDITIONER CONTROL ...................... 235
.
Defroster Door Motor Diagnosis Procedure ..........213 . Front Air Control Terminals Reference Values .... 235 .
Wiring Diagram .................................................... 237
.
BLOWER MOTOR CONTROL SYSTEM ....... 217
.
System Description ...............................................217
. SYMPTOM DIAGNOSIS ........................... 245
Front Blower Motor Component Function Check ..217
Front Blower Motor Diagnosis Procedure .............218 .
MANUAL A/C IDENTIFICATION TABLE ........ 245
.
Application Table ................................................. 245
.
Front Blower Motor Component Inspection ..........221 .
MAGNET CLUTCH ......................................... 223
. AIR CONDITIONER CONTROL ...................... 246
.
Symptom Matrix Chart ........................................ 246
.
System Description ...............................................223
.
Magnet Clutch Component Function Check .........223 . INSUFFICIENT COOLING ............................... 247
.
Magnet Clutch Diagnosis Procedure ....................223 . Component Function Check ................................ 247 .
WATER VALVE CIRCUIT ............................... 228
. Diagnostic Work Flow .......................................... 248
.
Performance Chart ............................................... 250
.
Description ............................................................228
.
Trouble Diagnoses for Abnormal Pressure .......... 251 .
Water Valve Diagnosis Procedure ........................228 .
INTAKE SENSOR ........................................... 230
. INSUFFICIENT HEATING ............................... 255
.
Component Function Check ................................ 255
.
System Description ...............................................230
.
Intake Sensor Diagnosis Procedure .....................230 . NOISE .............................................................. 257
.
Intake Sensor Component Inspection ..................231 . Component Function Check ................................ 257
.
POWER SUPPLY AND GROUND CIRCUIT PRECAUTION ........................................... 258
FOR CONTROLLER ....................................... 232
.
Component Description ........................................232 . PRECAUTIONS ............................................... 258
.
Front Air Control Component Function Check ......232 . Supplemental Restraint System (SRS) "AIR BAG"
Front Air Control Power and Ground Diagnosis and "SEAT BELT PRE-TENSIONER" ................. 258 .
Procedure .............................................................233
. Working with HFC-134a (R-134a) ........................ 258
.
Precaution for Service Equipment ....................... 259
.
ECU DIAGNOSIS ...................................... 234
.
Revision: November 2008 HAC-4 2009 Titan
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
BASIC INSPECTION A
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick And Accurate Repair INFOID:0000000003790016
B
WORK 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.CHECK FOR SERVICE BULLETINS E
Check for any service bulletins.
>> GO TO 3. F
3.VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to HAC-6, "Operational Check". G
Can a symptom be duplicated?
YES >> GO TO 4
NO >> GO TO 5 H
4.GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to HAC-83, "Symptom Matrix Chart".
HAC
Can a symptom be duplicated?
>> GO TO 5.
5.PERFORM THE FRONT AIR CONTROL SELF-DIAGNOSIS J
Perform front air control self-diagnosis. Refer to HAC-21, "Front Air Control Self-Diagnosis".
K
>> If any diagnostic trouble codes set. Refer to HAC-21, "Front Air Control Self-Diagnosis Code
Chart".
>> Confirm the repair by performing operational check. Refer to HAC-6, "Operational Check".
L
M
N
O
P
Revision: November 2008 HAC-5 2009 Titan
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
Operational Check INFOID:0000000003790017
The purpose of the operational check is to confirm that the system operates properly.
Conditions : Engine running and at normal operating temperature
CHECKING MEMORY FUNCTION
1. Set the temperature to 32◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo