Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2006-2009 Approved Nissan Maxima 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
A
HEATER & AIR CONDITIONING CONTROL SYSTEM
SECTION HAC B
C
D
E
CONTENTS
WITH COLOR DISPLAY CAN COMMUNICATION SYSTEM ................... 26 F
System Description .................................................26
.
BASIC INSPECTION ................................... 5
.
DIAGNOSIS SYSTEM (HVAC) ......................... 27 G
INSPECTION AND ADJUSTMENT .................... 5
. CONSULT-III Function ...........................................27
.
Operational Check (Front) ........................................ 5
.
Operational Check (Rear) ........................................ 6
. COMPONENT DIAGNOSIS ........................ 31
.
Temperature Setting Trimmer .................................. 7
. H
Foot Position Setting Trimmer .................................. 8
. U1000 CAN COMM CIRCUIT ........................... 31
Inlet Port Memory Function (FRE) ........................... 8
. Description ..............................................................31
.
Inlet Port Memory Function (REC) ........................... 8
. DTC Logic ...............................................................31
. HAC
Diagnosis Procedure .............................................31 .
FUNCTION DIAGNOSIS ............................. 10
.
U1010 CONTROL UNIT (CAN) ......................... 32
COMPRESSOR CONTROL FUNCTION ...........10
. Description ..............................................................32
. J
Description ............................................................. 10
. DTC Logic ...............................................................32
.
Fail-Safe ................................................................. 10
. Diagnosis Procedure ..............................................32 .
K
AUTOMATIC AIR CONDITIONER SYSTEM ....12 B257B, B257C AMBIENT SENSOR ................. 33
System Diagram ..................................................... 12
. Description ..............................................................33
.
System Description ................................................ 12
. DTC Logic ...............................................................33
.
Air Conditioner LAN Control System ...................... 14 . Diagnosis Procedure ..............................................34 . L
Component Inspection ............................................35 .
MODE DOOR CONTROL SYSTEM ..................17
.
System Diagram ..................................................... 17
. B2578, B2579 IN-VEHICLE SENSOR .............. 36 M
System Description ................................................ 17
. Description ..............................................................36
.
DTC Logic ...............................................................36
.
AIR MIX DOOR CONTROL SYSTEM ...............19
. Diagnosis Procedure ..............................................37 .
System Diagram ..................................................... 19
. Component Inspection ............................................38 . N
System Description ................................................ 19
.
B2581, B2582 INTAKE SENSOR ..................... 39
INTAKE DOOR CONTROL SYSTEM ...............21
. Description ..............................................................39
. O
System Diagram ..................................................... 21
. DTC Logic ...............................................................39
.
System Description ................................................ 21
. Diagnosis Procedure ..............................................39 .
Component Inspection ............................................40 .
BLOWER MOTOR CONTROL SYSTEM ..........23
. P
System Diagram ..................................................... 23
. B2630, B2631 SUNLOAD SENSOR ................. 42
System Description ................................................ 23
. Description ..............................................................42
.
DTC Logic ...............................................................42
.
MAGNET CLUTCH CONTROL SYSTEM .........25
. Diagnosis Procedure ..............................................43 .
System Diagram ..................................................... 25
. Component Inspection ............................................44 .
System Description ................................................ 25
.
Revision: October 2008 HAC-1 2009 Maxima
B2632, B2633 AIR MIX DOOR MOTOR DTC Index .............................................................. 96
.
(DRIVER SIDE) ................................................. 45
.
Description ............................................................. 45
. SYMPTOM DIAGNOSIS ............................ 98
DTC Logic .............................................................. 45
. INSUFFICIENT COOLING ................................ 98
.
Diagnosis Procedure ............................................. 46 . Component Function Check .................................. 98 .
B2634, B2635 AIR MIX DOOR MOTOR (PAS- Diagnostic Work Flow .......................................... 100
.
SENGER SIDE) ................................................. 47
. Performance Chart ............................................... 102
.
Description ............................................................. 47
. INSUFFICIENT HEATING ............................... 104
.
DTC Logic .............................................................. 47
. Component Function Check ................................ 104
.
Diagnosis Procedure ............................................. 48 .
NOISE .............................................................. 107
.
B2636, B2637, B2638, B2639, B2654, B2655 Component Function Check ................................ 107
.
MODE DOOR MOTOR ..................................... 49
.
Description ............................................................. 49
. MEMORY FUNCTION DOES NOT OPERATE.. 109
DTC Logic .............................................................. 49
. Component Function Check ................................ 109
.
Diagnosis Procedure ............................................. 50 .
PRECAUTION ........................................... 110
B263D, B263E, B263F INTAKE DOOR MO-
TOR ................................................................... 51
. PRECAUTIONS ............................................... 110
.
Description ............................................................. 51
. Precaution for Supplemental Restraint System
DTC Logic .............................................................. 51
. (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
Diagnosis Procedure ............................................. 52 . SIONER" .............................................................. 110
.
Precautions Necessary for Steering Wheel Rota-
BLOWER MOTOR ............................................ 53
. tion after Battery Disconnect ................................ 110 .
Description ............................................................. 53
. Precaution for Procedure without Cowl Top Cover. 111
Component Function Check ................................ 53 . Precautions For Xenon Headlamp Service .......... 111 .
Diagnosis Procedure ............................................. 53 . Working with HFC-134a (R-134a) ........................ 111 .
General Refrigerant Precaution ........................... 112 .
REAR AIR CONTROL CIRCUIT ....................... 57
. Refrigerant Connection ........................................ 112 .
Description ............................................................. 57
. Service Equipment ............................................... 115.
Diagnosis Procedure ............................................. 57 .
COMPRESSOR ............................................... 117
.
MAGNET CLUTCH ........................................... 60
. General Precautions ............................................ 117
.
Description ............................................................. 60
.
Component Function Check .................................. 60 . LEAK DETECTION DYE ................................. 118
.
Diagnosis Procedure ............................................. 61 . General Precautions ............................................ 118
.
POWER SUPPLY AND GROUND CIRCUIT .... 63
. PREPARATION ......................................... 119
A/C AUTO AMP. ...................................................... 63
. PREPARATION ............................................... 119
.
A/C AUTO AMP. : Description ............................... 63 . Special Service Tool ............................................ 119
.
A/C AUTO AMP. : Component Function Check .... 63 . Commercial Service Tool ..................................... 121 .
A/C AUTO AMP. : Diagnosis Procedure ............... 63 . Sealant or/and Oil ................................................ 121
.
A/C AND AV SWITCH ASSEMBLY ......................... 64 . ON-VEHICLE REPAIR .............................. 123
A/C AND AV SWITCH ASSEMBLY : Component
Function Check ...................................................... 64
. CONTROL UNIT .............................................. 123
.
A/C AND AV SWITCH ASSEMBLY : Diagnosis Removal and Installation ...................................... 123
.
Procedure .............................................................. 64
.
AMBIENT SENSOR ......................................... 124
.
ECU DIAGNOSIS ....................................... 66
. Removal and Installation ...................................... 124
.
A/C AUTO AMP. ............................................... 66
. IN-VEHICLE SENSOR ..................................... 125
.
Reference Value .................................................... 66 . Removal and Installation ...................................... 125
.
Wiring Diagram - Air Conditioner Control - With
NAVI ...................................................................... 68
. SUNLOAD SENSOR ....................................... 126
.
Wiring Diagram - Air Conditioner Control - Without Removal and Installation ...................................... 126
.
NAVI ...................................................................... 82
.
INTAKE SENSOR ............................................ 127
.
Fail-Safe ................................................................ 95
.
Removal and Installation ...................................... 127
.
DTC Inspection Priority Chart ............................. 96 .
Revision: October 2008 HAC-2 2009 Maxima
REFRIGERANT PRESSURE SENSOR .......... 128
. COMPONENT DIAGNOSIS ...................... 156
.
Removal and Installation for Refrigerant Pressure A
Sensor .................................................................. 128
. U1000 CAN COMM CIRCUIT ......................... 156
Description ............................................................ 156
.
DOOR MOTOR ................................................ 129
. DTC Logic ............................................................. 156
.
B
Diagnosis Procedure ........................................... 156 .
INTAKE DOOR MOTOR ......................................... 129 .
INTAKE DOOR MOTOR : Removal and Installa- U1010 CONTROL UNIT (CAN) ....................... 157
tion ....................................................................... 129
. Description ............................................................ 157
. C
DTC Logic ............................................................. 157
.
MODE DOOR MOTOR ........................................... 129
.
Diagnosis Procedure ............................................ 157 .
MODE DOOR MOTOR : Removal and Installation 129 ..
B257B, B257C AMBIENT SENSOR ............... 158 D
AIR MIX DOOR MOTOR ........................................ 129 .
Description ............................................................ 158
.
AIR MIX DOOR MOTOR : Removal and Installa-
DTC Logic ............................................................. 158
.
tion ....................................................................... 129
.
Diagnosis Procedure ............................................ 159 . E
WITH MONOCHROME DISPLAY Component Inspection .......................................... 160 .
BASIC INSPECTION ................................ 131
. B2578, B2579 IN-VEHICLE SENSOR ............ 161
F
INSPECTION AND ADJUSTMENT ................. 131
. Description ............................................................ 161
.
DTC Logic ............................................................. 161
.
Operational Check ............................................... 131
.
Diagnosis Procedure ............................................ 162 .
Temperature Setting Trimmer .............................. 132 . G
Component Inspection .......................................... 163 .
Foot Position Setting Trimmer .............................. 133
.
Inlet Port Memory Function (FRE) ....................... 133 . B2581, B2582 INTAKE SENSOR ................... 164
Inlet Port Memory Function (REC) ....................... 134 . Description ............................................................ 164
. H
DTC Logic ............................................................. 164
.
FUNCTION DIAGNOSIS ........................... 135
.
Diagnosis Procedure ............................................ 164 .
COMPRESSOR CONTROL FUNCTION ......... 135
. Component Inspection .......................................... 165 .
HAC
Description ........................................................... 135
.
B2630, B2631 SUNLOAD SENSOR ............... 167
Fail-Safe ............................................................... 135
.
Description ............................................................ 167
.
AUTOMATIC AIR CONDITIONER SYSTEM .. 137 DTC Logic ............................................................. 167
. J
System Diagram ................................................... 137
. Diagnosis Procedure ............................................ 168 .
System Description .............................................. 137
. Component Inspection .......................................... 169 .
Air Conditioner LAN Control System .................... 139 . K
B2632, B2633 AIR MIX DOOR MOTOR
MODE DOOR CONTROL SYSTEM ................ 142
. (DRIVER SIDE) ............................................... 170
System Diagram ................................................... 142
. Description ............................................................ 170
.
System Description .............................................. 142
. DTC Logic ............................................................. 170
. L
Diagnosis Procedure ............................................ 171 .
AIR MIX DOOR CONTROL SYSTEM ............. 144
.
System Diagram ................................................... 144
. B2634, B2635 AIR MIX DOOR MOTOR (PAS-
M
System Description .............................................. 144
. SENGER SIDE) ............................................... 172
Description ............................................................ 172
.
INTAKE DOOR CONTROL SYSTEM ............. 146
. DTC Logic ............................................................. 172
.
System Diagram ................................................... 146
. Diagnosis Procedure ............................................ 173 . N
System Description .............................................. 146
.
B2636, B2637, B2638, B2639, B2654, B2655
BLOWER MOTOR CONTROL SYSTEM ........ 148
. MODE DOOR MOTOR .................................... 174 O
System Diagram ................................................... 148
. Description ............................................................ 174
.
System Description .............................................. 148
. DTC Logic ............................................................. 174
.
Diagnosis Procedure ............................................ 175 .
MAGNET CLUTCH CONTROL SYSTEM ....... 150
. P
System Diagram ................................................... 150
. B263D, B263E, B263F INTAKE DOOR MO-
System Description .............................................. 150
. TOR ................................................................. 176
CAN COMMUNICATION SYSTEM ................. 151
. Description ............................................................ 176
.
DTC Logic ............................................................. 176
.
System Description .............................................. 151
.
Diagnosis Procedure ............................................ 177 .
DIAGNOSIS SYSTEM (HVAC) ....................... 152
.
CONSULT-III Function ......................................... 152
.
BLOWER MOTOR .......................................... 178
Revision: October 2008 HAC-3 2009 Maxima
Description ............................................................178
. Precautions Necessary for Steering Wheel Rota-
Component Function Check ...............................178 . tion after Battery Disconnect ................................ 218
.
Diagnosis Procedure ............................................178 . Precaution for Procedure without Cowl Top Cover. 219
Precautions For Xenon Headlamp Service .......... 219 .
MAGNET CLUTCH ......................................... 182
. Working with HFC-134a (R-134a) ........................ 219 .
Description ............................................................182
. General Refrigerant Precaution ........................... 220 .
Component Function Check .................................182 . Refrigerant Connection ........................................ 220
.
Diagnosis Procedure ............................................183 . Service Equipment ............................................... 223
.
A/C SWITCH ASSEMBLY SIGNAL CIRCUIT . 185 COMPRESSOR ............................................... 225
.
Diagnosis Procedure ............................................185
. General Precautions ............................................ 225
.
POWER SUPPLY AND GROUND CIRCUIT .. 186
. LEAK DETECTION DYE ................................. 226
.
General Precautions ............................................ 226
.
A/C AUTO AMP. .....................................................186
.
A/C AUTO AMP. : Description ..............................186 . PREPARATION ......................................... 227
A/C AUTO AMP. : Component Function Check ...186 .
A/C AUTO AMP. : Diagnosis Procedure ..............186 . PREPARATION ............................................... 227
.
Special Service Tool ............................................ 227
.
A/C SWITCH ASSEMBLY ......................................187 .
Commercial Service Tool ..................................... 229 .
A/C SWITCH ASSEMBLY : Component Function
Sealant or/and Oil ................................................ 229
.
Check ...................................................................187
.
A/C SWITCH ASSEMBLY : Diagnosis Procedure..187 ON-VEHICLE REPAIR .............................. 231
A/C DISPLAY UNIT .................................................188
. CONTROL UNIT .............................................. 231
.
A/C DISPLAY UNIT : Diagnosis Procedure ..........188 .
Removal and Installation ...................................... 231
.
ECU DIAGNOSIS ...................................... 190
. AMBIENT SENSOR ......................................... 232
.
A/C AUTO AMP. ............................................. 190
. Removal and Installation ...................................... 232
.
Reference Value ...................................................190
. IN-VEHICLE SENSOR ..................................... 233
.
Wiring Diagram - Air Conditioner Control - With Removal and Installation ...................................... 233
.
Monochrome Display ............................................192 .
DTC Inspection Priority Chart ............................203 . SUNLOAD SENSOR ....................................... 234
.
DTC Index ............................................................204
. Removal and Installation ...................................... 234
.
SYMPTOM DIAGNOSIS ........................... 206
. INTAKE SENSOR ............................................ 235
.
Removal and Installation ...................................... 235
.
INSUFFICIENT COOLING .............................. 206
.
Component Function Check .................................206 . REFRIGERANT PRESSURE SENSOR .......... 236
.
Diagnostic Work Flow ...........................................208
. Removal and Installation for Refrigerant Pressure
Performance Chart ...............................................210
. Sensor .................................................................. 236
.
INSUFFICIENT HEATING .............................. 212
. DOOR MOTOR ................................................ 237
.
Component Function Check .................................212
.
INTAKE DOOR MOTOR ........................................ 237 .
NOISE ............................................................. 215
. INTAKE DOOR MOTOR : Removal and Installa-
Component Function Check .................................215
. tion ....................................................................... 237
.
MEMORY FUNCTION DOES NOT OPERATE. 217 MODE DOOR MOTOR ........................................... 237
.
Component Function Check .................................217
. MODE DOOR MOTOR : Removal and Installation. 237
PRECAUTION ........................................... 218
. AIR MIX DOOR MOTOR ........................................ 237 .
AIR MIX DOOR MOTOR : Removal and Installa-
PRECAUTIONS .............................................. 218
. tion ....................................................................... 237
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................218
.
Revision: October 2008 HAC-4 2009 Maxima
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [WITH COLOR DISPLAY]
BASIC INSPECTION A
INSPECTION AND ADJUSTMENT
Operational Check (Front) INFOID:0000000004199382
B
DESCRIPTION
The purpose of the operational check is to check that the individual system operates normally. C
Conditions : Engine running at normal operating temperature
INSPECTION PROCEDURE D
1.CHECK MEMORY FUNCTION
1. Start the engine. E
2. Operate the temperature control dial (driver side) and raise the temperature setting to 32◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo