Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Murano 2003-2007.2009 Approved Nissan Murano 2009 Z51 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
WITHOUT 7 INCH DISPLAY System Description .................................................32
. F
BASIC INSPECTION ................................... 5
. BLOWER MOTOR CONTROL SYSTEM .......... 34
System Diagram .....................................................34
.
G
DIAGNOSIS AND REPAIR WORKFLOW ......... 5
. System Description .................................................34
.
Work Flow ................................................................ 5
.
MAGNET CLUTCH CONTROL SYSTEM ......... 36
INSPECTION AND ADJUSTMENT .................... 7
. System Diagram .....................................................36
. H
Description & Inspection .......................................... 7
. System Description .................................................36
.
Temperature Setting Trimmer .................................. 9
.
Foot Position Setting Trimmer .................................. 9
. CAN COMMUNICATION SYSTEM ................... 37
HAC
Inlet Port Memory Function (FRE) ......................... 10. System Description .................................................37
.
Inlet Port Memory Function (REC) ......................... 10.
DIAGNOSIS SYSTEM (HVAC) ......................... 38
FUNCTION DIAGNOSIS ............................. 11
. CONSULT-III Function ...........................................38
. J
COMPRESSOR CONTROL FUNCTION ...........11
. COMPONENT DIAGNOSIS ........................ 42
.
Description ............................................................. 11
. K
U1000 CAN COMM CIRCUIT ........................... 42
Component Part Location ...................................... 12 .
Description ..............................................................42
.
Component's Role .................................................. 14
.
DTC Logic ...............................................................42
.
AUTOMATIC AIR CONDITIONER SYSTEM ....15 Diagnosis Procedure .............................................42 . L
System Diagram ..................................................... 15
.
U1010 CONTROL UNIT (CAN) ......................... 43
System Description ................................................ 15
.
Description ..............................................................43
.
Component Part Location ...................................... 22
. M
DTC Logic ...............................................................43
.
Component Description .......................................... 25
.
Diagnosis Procedure ..............................................43 .
MODE DOOR CONTROL SYSTEM ..................26
.
B257B, B257C AMBIENT SENSOR ................. 44 N
System Diagram ..................................................... 26
.
Description ..............................................................44
.
System Description ................................................ 26
.
DTC Logic ...............................................................44
.
UPPER VENTILATOR DOOR CONTROL Diagnosis Procedure ..............................................45 .
Component Inspection ............................................46 . O
SYSTEM ............................................................28
.
System Diagram ..................................................... 28
. B2578, B2579 IN-VEHICLE SENSOR .............. 47
System Description ................................................ 28
.
Description ..............................................................47
. P
AIR MIX DOOR CONTROL SYSTEM ...............30
. DTC Logic ...............................................................47
.
System Diagram ..................................................... 30
. Diagnosis Procedure ..............................................48 .
System Description ................................................ 30
. Component Inspection ............................................49 .
INTAKE DOOR CONTROL SYSTEM ...............32
. B2581, B2582 INTAKE SENSOR ..................... 50
System Diagram ..................................................... 32
. Description ..............................................................50
.
DTC Logic ...............................................................50
.
Revision: 2008 October HAC-1 2009 Murano
Diagnosis Procedure ............................................. 50
. A/C CONTROL : Diagnosis Procedure .................. 76
.
Component Inspection ........................................... 51
.
A/C DISPLAY ........................................................... 77
.
B2630, B2631 SUNLOAD SENSOR ................ 53
. A/C DISPLAY : Diagnosis Procedure .................... 77 .
Description ............................................................. 53
.
DTC Logic .............................................................. 53
. ECU DIAGNOSIS ....................................... 78
Diagnosis Procedure ............................................. 54 .
ECM .................................................................. 78
.
Component Inspection ........................................... 55 .
Reference Value .................................................... 78
.
B2632, B2633 AIR MIX DOOR MOTOR
A/C AUTO AMP. ............................................... 93
.
(DRIVER SIDE) ................................................. 56
. Reference Value .................................................... 93 .
Description ............................................................. 56
. Wiring Diagram - AIR CONDITIONER CONTROL
DTC Logic .............................................................. 56
. SYSTEM - .............................................................. 95
.
Diagnosis Procedure ............................................. 57 . Fail-Safe ............................................................... 102
.
B2634, B2635 AIR MIX DOOR MOTOR (PAS- DTC Inspection Priority Chart ............................ 103 .
SENGER SIDE) ................................................. 58
. DTC Index ............................................................ 103
.
Description ............................................................. 58
. SYMPTOM DIAGNOSIS ........................... 105
DTC Logic .............................................................. 58
.
Diagnosis Procedure ............................................. 59 . AIR CONDITIONER CONTROL ...................... 105
.
Diagnosis Chart By Symptom .............................. 105
.
B2636, B2637, B2638, B2639, B2654, B2655
MODE DOOR MOTOR ..................................... 60
. INSUFFICIENT COOLING ............................... 106
.
Description ............................................................. 60
. Description ........................................................... 106
.
DTC Logic .............................................................. 60
. Inspection procedure ........................................... 106 .
Diagnosis Procedure ............................................. 61 .
INSUFFICIENT HEATING ............................... 109
.
B263D, B263E, B263F INTAKE DOOR MO- Description ........................................................... 109
.
TOR ................................................................... 63
. Inspection procedure ........................................... 109 .
Description ............................................................. 63
.
DTC Logic .............................................................. 63
. NOISE .............................................................. 112
.
Diagnosis Procedure ............................................. 64 . Description ........................................................... 112
.
Inspection procedure ........................................... 112 .
B2661, B2662, B2663 UPPER VENTILATOR
DOOR MOTOR ................................................. 65
. MEMORY FUNCTION DOES NOT OPERATE.. 114
Description ............................................................. 65
. Description ........................................................... 114
.
DTC Logic .............................................................. 65
. Inspection procedure ........................................... 114 .
Diagnosis Procedure ............................................. 66 .
PRECAUTION ........................................... 115
BLOWER MOTOR ............................................ 68
.
PRECAUTIONS ............................................... 115
.
Description ............................................................. 68
.
Component Function Check ................................ 68 . FOR USA AND CANADA ...................................... 115
.
Diagnosis Procedure ............................................. 68 . FOR USA AND CANADA : Precaution for Supple-
Component Inspection ........................................... 71 . mental Restraint System (SRS) "AIR BAG" and
"SEAT BELT PRE-TENSIONER" ........................ 115 .
MAGNET CLUTCH ........................................... 72
.
Description ............................................................. 72
. FOR MEXICO ......................................................... 115
.
Component Function Check .................................. 72 . FOR MEXICO : Precaution for Supplemental Re-
Diagnosis Procedure ............................................. 72 . straint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" .............................................. 115 .
A/C CONTROL SIGNAL CIRCUIT ................... 74
. Precaution Necessary for Steering Wheel Rota-
Diagnosis Procedure ............................................. 74
. tion after Battery Disconnect ................................ 116.
POWER SUPPLY AND GROUND CIRCUIT .... 75
. Precaution for Procedure without Cowl Top Cover. 116
Precautions For Xenon Headlamp Service .......... 116 .
A/C AUTO AMP. ...................................................... 75
. Working with HFC-134a (R-134a) ........................ 117 .
A/C AUTO AMP. : Description ............................... 75 . General Refrigerant Precaution ........................... 117 .
A/C AUTO AMP. : Component Function Check .... 75 . Refrigerant Connection ........................................ 118
.
A/C AUTO AMP. : Diagnosis Procedure ............... 75 . Service Equipment ............................................... 120
.
A/C CONTROL ......................................................... 76
. COMPRESSOR ............................................... 122
.
Revision: 2008 October HAC-2 2009 Murano
General Precautions ............................................ 122
. COMPONENT DIAGNOSIS ...................... 161
.
A
FLUORESCENT LEAK DETECTOR .............. 123
. U1000 CAN COMM CIRCUIT ......................... 161
General Precautions ............................................ 123
. Description ............................................................ 161
.
WITH 7 INCH DISPLAY DTC Logic ............................................................. 161
.
B
Diagnosis Procedure ........................................... 161 .
BASIC INSPECTION ................................ 124
.
U1010 CONTROL UNIT (CAN) ....................... 162
DIAGNOSIS AND REPAIR WORKFLOW ...... 124
. Description ............................................................ 162
. C
Work Flow ............................................................ 124
. DTC Logic ............................................................. 162
.
Diagnosis Procedure ............................................ 162 .
INSPECTION AND ADJUSTMENT ................. 126
.
Description & Inspection ...................................... 126
. B257B, B257C AMBIENT SENSOR ............... 163 D
Temperature Setting Trimmer .............................. 128
. Description ............................................................ 163
.
Foot Position Setting Trimmer .............................. 128
. DTC Logic ............................................................. 163
.
Inlet Port Memory Function (FRE) ....................... 129 . Diagnosis Procedure ............................................ 164 . E
Inlet Port Memory Function (REC) ....................... 129 . Component Inspection .......................................... 165 .
FUNCTION DIAGNOSIS ........................... 130
. B2578, B2579 IN-VEHICLE SENSOR ............ 166
F
Description ............................................................ 166
.
COMPRESSOR CONTROL FUNCTION ......... 130
. DTC Logic ............................................................. 166
.
Description ........................................................... 130
. Diagnosis Procedure ............................................ 167 .
Fail-Safe ............................................................... 131
. Component Inspection .......................................... 168 . G
Component Part Location .................................... 131 .
Component's Role ................................................ 134 . B2581, B2582 INTAKE SENSOR ................... 169
Description ............................................................ 169
. H
AUTOMATIC AIR CONDITIONER SYSTEM .. 135 DTC Logic ............................................................. 169
.
System Diagram ................................................... 135
. Diagnosis Procedure ............................................ 169 .
System Description .............................................. 135
. Component Inspection .......................................... 170 .
Component Part Location .................................... 141. HAC
Component Description ........................................ 144
. B2630, B2631 SUNLOAD SENSOR ............... 172
Description ............................................................ 172
.
MODE DOOR CONTROL SYSTEM ................ 145
. DTC Logic ............................................................. 172
. J
System Diagram ................................................... 145
. Diagnosis Procedure ............................................ 173 .
System Description .............................................. 145
. Component Inspection .......................................... 174 .
UPPER VENTILATOR DOOR CONTROL B2632, B2633 AIR MIX DOOR MOTOR K
SYSTEM .......................................................... 147
. (DRIVER SIDE) ............................................... 175
System Diagram ................................................... 147
. Description ............................................................ 175
.
System Description .............................................. 147
. DTC Logic ............................................................. 175
. L
AIR MIX DOOR CONTROL SYSTEM ............. 149
. Diagnosis Procedure ............................................ 176 .
System Diagram ................................................... 149
. B2634, B2635 AIR MIX DOOR MOTOR (PAS-
System Description .............................................. 149
. M
SENGER SIDE) ............................................... 177
INTAKE DOOR CONTROL SYSTEM ............. 151
. Description ............................................................ 177
.
System Diagram ................................................... 151
. DTC Logic ............................................................. 177
.
Diagnosis Procedure ............................................ 178 . N
System Description .............................................. 151
.
BLOWER MOTOR CONTROL SYSTEM ........ 153
. B2636, B2637, B2638, B2639, B2654, B2655
System Diagram ................................................... 153
. MODE DOOR MOTOR .................................... 179 O
System Description .............................................. 153
. Description ............................................................ 179
.
DTC Logic ............................................................. 179
.
MAGNET CLUTCH CONTROL SYSTEM ....... 155
. Diagnosis Procedure ............................................ 180 .
P
System Diagram ................................................... 155
.
System Description .............................................. 155
. B263D, B263E, B263F INTAKE DOOR MO-
TOR ................................................................. 182
CAN COMMUNICATION SYSTEM ................. 156
. Description ............................................................ 182
.
System Description .............................................. 156
. DTC Logic ............................................................. 182
.
Diagnosis Procedure ............................................ 183 .
DIAGNOSIS SYSTEM (HVAC) ....................... 157
.
CONSULT-III Function ......................................... 157
.
Revision: 2008 October HAC-3 2009 Murano
B2661, B2662, B2663 UPPER VENTILATOR Description ........................................................... 223
.
DOOR MOTOR ............................................... 184
. Inspection procedure ........................................... 223 .
Description ............................................................184
.
DTC Logic .............................................................184
.
INSUFFICIENT HEATING ............................... 226
.
Description ........................................................... 226
.
Diagnosis Procedure ............................................185 .
Inspection procedure ........................................... 226 .
BLOWER MOTOR .......................................... 187
.
Description ............................................................187
.
NOISE .............................................................. 229
.
Description ........................................................... 229
.
Component Function Check ...............................187 .
Inspection procedure ........................................... 229 .
Diagnosis Procedure ............................................187 .
Component Inspection ..........................................190 . MEMORY FUNCTION DOES NOT OPERATE.. 231
MAGNET CLUTCH ......................................... 191
. Description ........................................................... 231
.
Inspection procedure ........................................... 231 .
Description ............................................................191
.
Component Function Check .................................191 . PRECAUTION ........................................... 232
Diagnosis Procedure ............................................191 .
PRECAUTIONS ............................................... 232
.
POWER SUPPLY AND GROUND CIRCUIT .. 193
.
FOR USA AND CANADA ...................................... 232
.
A/C AUTO AMP. .....................................................193
.
FOR USA AND CANADA : Precaution for Supple-
A/C AUTO AMP. : Description ..............................193 . mental Restraint System (SRS) "AIR BAG" and
A/C AUTO AMP. : Component Function Check ...193 . "SEAT BELT PRE-TENSIONER" ........................ 232 .
A/C AUTO AMP. : Diagnosis Procedure ..............193 .
FOR MEXICO ......................................................... 232
.
ECU DIAGNOSIS ...................................... 195
. FOR MEXICO : Precaution for Supplemental Re-
straint System (SRS) "AIR BAG" and "SEAT BELT
ECM ................................................................ 195
.
PRE-TENSIONER" .............................................. 232 .
Reference Value ...................................................195
.
Precaution Necessary for Steering Wheel Rota-
A/C AUTO AMP. ............................................. 210
. tion after Battery Disconnect ................................ 233.
Reference Value ...................................................210 . Precaution for Procedure without Cowl Top Cover. 233
Wiring Diagram - AIR CONDITIONER CONTROL Precautions For Xenon Headlamp Service .......... 233 .
SYSTEM - .............................................................212
. Working with HFC-134a (R-134a) ........................ 234 .
Fail-Safe ...............................................................219
. General Refrigerant Precaution ........................... 234 .
DTC Inspection Priority Chart ............................220 . Refrigerant Connection ........................................ 235
.
DTC Index ............................................................220
. Service Equipment ............................................... 237
.
SYMPTOM DIAGNOSIS ........................... 222
. COMPRESSOR ............................................... 239
.
General Precautions ............................................ 239
.
AIR CONDITIONER CONTROL ..................... 222
.
Diagnosis Chart By Symptom ...............................222
. FLUORESCENT LEAK DETECTOR ............... 240
.
General Precautions ............................................ 240
.
INSUFFICIENT COOLING .............................. 223
.
Revision: 2008 October HAC-4 2009 Murano
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [WITHOUT 7 INCH DISPLAY]
BASIC INSPECTION A
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000003073006
B
OVERALL SEQUENCE
C
D
E
F
G
H
HAC
J
K
L
JSIIA0943GB M
*1: Refer to HAC-103, "DTC Index".
*2: Refer to HAC-105, "Diagnosis Chart By Symptom".
DETAILED FLOW N
1.OBTAIN INFORMATION ABOUT SYMPTOM
Interview the customer to obtain as much information as possible about the conditions and environment under O
which the malfunction occurred.
>> GO TO 2. P
2.VERIFY SYMPTOM
Verify the symptom with operational check based on the information obtained from the customer. Refer to
HAC-7, "Description & Inspection".
>> GO TO 3.
Revision: 2008 October HAC-5 2009 Murano
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION > [WITHOUT 7 INCH DISPLAY]
3.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III
Using CONSULT-III, perform "SELF-DIAGNOSIS RESULTS" of HVAC. Refer to HAC-103, "DTC Index".
Are self-diagnosis results normal?
YES >> GO TO 4.
NO >> GO TO 5.
4.NARROW DOWN THE MALFUNCTIONING PARTS BY SYMPTOM DIAGNOSIS
Perform symptom diagnosis and narrow down the malfunctioning parts. Refer to HAC-105, "Diagnosis Chart
By Symptom".
>> GO TO 5.
5.REPAIR OR REPLACE
Repair or replace malfunctioning parts.
NOTE:
If DTC is displayed, erase DTC after repairing or replacing malfunctioning parts.
>> GO TO 6.
6.FINAL CHECK
Check that the A/C system operates normally.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 3.
Revision: 2008 October HAC-6 2009 Murano
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [WITHOUT 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
A
Description & Inspection INFOID:0000000003073011
DESCRIPTION B
The purpose of the operational check is to check that the individual system operates normally.
Conditions : Engine running at normal operating temperature C
INSPECTION PROCEDURE
1.CHECK MEMORY FUNCTION D
1. Start the engine.
2. Operate the temperature control switch (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