Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Armada 2004-2009 Approved Nissan Armada 2009 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 COMPONENT DIAGNOSIS ........................ 25
. F
BASIC INSPECTION ................................... 3
. MODE DOOR MOTOR ...................................... 25
System Description .................................................25 . G
DIAGNOSIS AND REPAIR WORKFLOW ......... 3
. Mode Door Motor (Front) Component Function
How to Perform Trouble Diagnosis For Quick And Check .....................................................................26
.
Accurate Repair ....................................................... 3
. Mode Door Motor (Front) Diagnosis Procedure .....27 .
H
INSPECTION AND ADJUSTMENT .................... 4
. AIR MIX DOOR MOTOR ................................... 31
Operational Check (Front) ........................................ 4
. System Description .................................................31 .
Operational Check (Rear) ........................................ 5
. Air Mix Door Motor Component Function Check ....32 HAC
Air Mix Door Motor (Driver) Diagnosis Procedure....33
FUNCTION DIAGNOSIS .............................. 7
. Air Mix Door Motor (Passenger) Diagnosis Proce-
FUNCTION INFORMATION ............................... 7
. dure ........................................................................36
.
J
Component Part Location ........................................ 7
. INTAKE DOOR MOTOR ................................... 41
Symptom Table ........................................................ 9
. System Description .................................................41
.
REFRIGERATION SYSTEM .............................11
. Intake Door Motor Component Function Check .....42 . K
Refrigerant Cycle ................................................... 11
. Intake Door Motor Diagnosis Procedure ................43 .
Refrigerant System Protection ............................... 11 . DEFROSTER DOOR MOTOR CIRCUIT ........... 45
L
AUTOMATIC AIR CONDITIONER SYSTEM ....13 System Description .................................................45
.
Defroster Door Motor Component Function Check
Control System Diagram ........................................ 13
.
....46
Control System Description .................................... 13
.
Defroster Door Motor Diagnosis Procedure ...........46 . M
Discharge Air Flow (Front) ..................................... 16
.
Discharge Air Flow (Rear) ...................................... 16
. BLOWER MOTOR CONTROL SYSTEM .......... 50
Switches And Their Control Function (Front) ......... 18 . System Description .................................................50
.
Switches And Their Control Function (Rear) .......... 19 . N
Front Blower Motor Component Function Check ....51
DIAGNOSIS SYSTEM (HVAC) .........................20
. Front Blower Motor Diagnosis Procedure ...............52 .
Front Blower Motor Component Inspection ............55 .
CONSULT-III Function (HVAC) .............................. 20
. O
Rear Blower Motor Description ...............................56 .
DIAGNOSIS SYSTEM (BCM) ...........................21
. Rear Blower Motor Component Function Check ....57
CONSULT-III Function (BCM - COMMON ITEM).... 21 Rear Air Control (Front) Diagnosis Procedure #1....58
CONSULT-III Function (BCM - AUTO AIR CON- Rear Air Control (Rear) Diagnosis Procedure #2 ....59 P
DITIONER) ............................................................. 21
. Rear Blower Motor Component Inspection .............60 .
SELF-DIAGNOSIS FUNCTION .........................23
. REAR AIR CONTROL SYSTEM ....................... 62
A/C Auto Amp. Self-Diagnosis ............................... 23
. Rear Air Control System Description ......................62
.
A/C and AV Switch Assembly Self-Diagnosis ........ 23 . Rear Air Control Component Function Check ........62 .
A/C System Self-Diagnosis Code Chart ................. 24
. Air Mix Door Motor (Rear) Diagnosis Procedure ....63
Mode Door Motor (Rear) Diagnosis Procedure ......67 .
Revision: October 2008 HAC-1 2009 Armada
MAGNET CLUTCH ........................................... 72
. ECU DIAGNOSIS ....................................... 91
System Description ................................................ 72
.
Magnet Clutch Component Function Check .......... 72 . AIR CONDITIONER CONTROL ....................... 91
.
Magnet Clutch Diagnosis Procedure ..................... 73 . A/C Auto Amp. Terminals Reference Values ......... 91 .
Wiring Diagram ...................................................... 93
.
WATER VALVE CIRCUIT ................................. 77
.
Description ............................................................. 77
. SYMPTOM DIAGNOSIS ........................... 109
Water Valve Diagnosis Procedure ......................... 77 .
AIR CONDITIONER CONTROL ...................... 109
.
AMBIENT SENSOR .......................................... 79
. Symptom Matrix Chart ........................................ 109
.
Component Description ......................................... 79
.
Ambient Sensor Diagnosis Procedure ................... 79 . INSUFFICIENT COOLING ............................... 110
.
Ambient Sensor Component Inspection ................ 80 . Component Function Check ................................ 110 .
Diagnostic Work Flow .......................................... 111
.
IN-VEHICLE SENSOR ...................................... 82
. Performance Chart ............................................... 114
.
Component Description ......................................... 82
. Trouble Diagnoses for Abnormal Pressure .......... 115 .
In-Vehicle Sensor Diagnosis Procedure ................ 82 .
In-Vehicle Sensor Component Inspection ............. 84 . INSUFFICIENT HEATING ............................... 118
.
Component Function Check ................................ 118
.
OPTICAL SENSOR .......................................... 85
.
Component Description ......................................... 85
. NOISE .............................................................. 120
.
Optical Sensor Diagnosis Procedure ..................... 85 . Component Function Check ................................ 120
.
INTAKE SENSOR ............................................. 87
. MEMORY FUNCTION DOES NOT OPERATE.. 122
System Description ................................................ 87
. Memory Function Check ...................................... 122
.
Intake Sensor Diagnosis Procedure ...................... 87 .
PRECAUTION ........................................... 123
Intake Sensor Component Inspection ................... 88 .
PRECAUTIONS ............................................... 123
.
POWER SUPPLY AND GROUND CIRCUIT
Supplemental Restraint System (SRS) "AIR BAG"
FOR CONTROLLER ......................................... 89
. and "SEAT BELT PRE-TENSIONER" ................. 123 .
Component Description ......................................... 89 .
Working with HFC-134a (R-134a) ........................ 123
.
A/C Auto Amp. Component Function Check ......... 89 .
Precaution for Service Equipment ....................... 124
.
A/C Auto Amp Power and Ground Diagnosis Pro-
cedure .................................................................... 90
.
Revision: October 2008 HAC-2 2009 Armada
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:0000000003710312
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-4, "Operational Check (Front)". 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-109, "Symptom Matrix Chart".
HAC
Can a symptom be duplicated?
>> GO TO 5.
5.PERFORM THE A/C AUTO AMP SELF-DIAGNOSIS J
Perform A/C auto amp. self-diagnosis. Refer to HAC-23, "A/C Auto Amp. Self-Diagnosis".
K
>> If any diagnostic trouble codes set. Refer to HAC-24, "A/C System Self-Diagnosis Code Chart".
>> Confirm the repair by performing operational check. Refer to HAC-4, "Operational Check (Front)".
L
M
N
O
P
Revision: October 2008 HAC-3 2009 Armada
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
Operational Check (Front) INFOID:0000000003710313
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