Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2000-2005 Approved Nissan Maxima 2003 ha
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HEATER &
AIR CONDITIONER GI
SECTION HA MA
EM
LC
EC
CONTENTS FE
AUTO Operational Check .....................................................65
CL
A/C System................................................................70
PRECAUTIONS ...............................................................3
Mode Door Motor.......................................................75 MT
Supplemental Restraint System (SRS) AIR
Air Mix Door Motor ....................................................83
BAG and SEAT BELT PRE-TENSIONER...............3
Intake Door Motor......................................................87
Precautions for Working with HFC-134a (R-134a) .....3
Blower Motor..............................................................91 AT
General Refrigerant Precautions .................................4
Magnet Clutch..........................................................101
Precautions for Leak Detection Dye............................4
Insufficient Cooling ..................................................108
Precaution for Identification Label on Vehicle .............5
Insufficient Heating ..................................................117
AX
Precautions for Refrigerant Connection ......................5
Noise........................................................................119
Precautions for Servicing Compressor........................8
Self-diagnosis ..........................................................121 SU
Precautions for Service Equipment .............................8
Memory Function .....................................................122
Wiring Diagrams and Trouble Diagnosis...................10
ECON (ECONOMY) Mode ......................................123
PREPARATION .............................................................11
Special Service Tools ................................................11
Ambient Sensor Circuit............................................124 BR
In-vehicle Sensor Circuit..........................................127
HFC-134a (R-134a) Service Tools and
Sunload Sensor Circuit............................................130
Equipment..................................................................12 ST
Intake Sensor Circuit ...............................................134
DESCRIPTION ...............................................................15
Air Mix Door Motor PBR Circuit ..............................136
Refrigeration System .................................................15
Multiplex Communication Circuit .............................137
V-6 Variable Displacement Compressor....................16 RS
SERVICE PROCEDURE..............................................139
Component Layout ....................................................20
HFC-134a (R-134a) Service Procedure ..................139
Introduction ................................................................21
Features.....................................................................21
Maintenance of Lubricant Quantity in BT
Compressor .............................................................141
Overview of Control System......................................24
Compressor .............................................................144
Control Operation ......................................................24
Compressor Clutch ..................................................144
Discharge Air Flow.....................................................26
Heater Unit (Heater Core) .......................................148
System Description....................................................27
Blower and Cooling Unit (A/C Evaporator) .............149
TROUBLE DIAGNOSES................................................28
Refrigerant Lines .....................................................150
SC
Component Location..................................................28
Fluorescent Dye Leak Detector...............................154
Circuit Diagram (Without Navigation System)...........30
Belt...........................................................................155 EL
Wiring Diagram - A/C, A -/Without Navigation
In-cabin Microfilter ...................................................155
System .......................................................................31
SERVICE DATA AND SPECIFICATIONS (SDS) .......156
Circuit Diagram (With Navigation System)................34
Auto..........................................................................156 IDX
Wiring Diagram - A/C, A -/With Navigation
System .......................................................................35
MANUAL
Auto Amp. Terminals and Reference Value...............39
Self-diagnosis ............................................................43 PRECAUTIONS ...........................................................157
How to Perform Trouble Diagnoses for Quick Supplemental Restraint System (SRS) AIR
and Accurate Repair ..................................................64 BAG and SEAT BELT PRE-TENSIONER...........157
CONTENTS (Cont'd)
Precautions for Working with HFC-134a Operational Check ...................................................186
(R-134a)...................................................................157 A/C System..............................................................188
General Refrigerant Precautions .............................158 Intake Door ..............................................................191
Precautions for Leak Detection Dye........................158 Blower Motor............................................................195
Precaution for Identification Label on Vehicle .........159 Air Mix Door.............................................................201
Precautions for Refrigerant Connection ..................159 Mode Door ...............................................................205
Precautions for Servicing Compressor....................162 Magnet Clutch..........................................................208
Precautions for Service Equipment .........................162 Insufficient Cooling ..................................................215
Wiring Diagrams and Trouble Diagnosis.................164 Insufficient Heating ..................................................223
PREPARATION ...........................................................165 Noise........................................................................224
Special Service Tools ..............................................165 SERVICE PROCEDURE..............................................225
HFC-134a (R-134a) Service Tools and HFC-134a (R-134a) Service Procedure ..................225
Equipment................................................................166 Maintenance of Lubricant Quantity in
DESCRIPTION .............................................................169 Compressor .............................................................227
Refrigeration System ...............................................169 Compressor .............................................................231
V-6 Variable Displacement Compressor..................170 Compressor Clutch ..................................................231
Component Layout ..................................................174 Heater Unit (Heater Core) .......................................235
Control Operation ....................................................175 Blower and Cooling Unit (A/C Evaporator) .............236
Discharge Air Flow...................................................176 Refrigerant Lines .....................................................237
System Description..................................................177 Fluorescent Dye Leak Detector...............................241
TROUBLE DIAGNOSES..............................................178 Belt...........................................................................242
Component Location................................................178 In-cabin Microfilter ...................................................242
Circuit Diagram - Air Conditioner.............................180 SERVICE DATA AND SPECIFICATIONS (SDS) .......243
Wiring Diagram - A/C, M - .......................................181 Manual .....................................................................243
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ................................................185
HA-2
PRECAUTIONS AUTO
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
NFHA0153
GI
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system MA
uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag,
depending on the severity of a collision and whether the front occupants are belted or unbelted. The SRS
system composition which is available to NISSAN MODEL A33 is as follows: EM
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