Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2006-2009 Approved Nissan Maxima 2008 atc
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AIR CONDITIONER
A
SECTION
AUTOMATIC AIR CONDITIONER
ATC B
C
D
E
CONTENTS
SERVICE INFORMATION ........................... 3
. How to Perform Trouble Diagnosis for Quick and F
Accurate Repair ......................................................25 .
PRECAUTIONS .................................................. 3
. Component Parts and Harness Connector Loca-
Precaution for Supplemental Restraint System tion ..........................................................................26
. G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- Schematic ...............................................................29.
SIONER" .................................................................. 3
. Wiring Diagram - A/C,A - ........................................30 .
Precaution for Working with HFC-134a (R-134a)...... 3 Unified Meter and A/C Amp. Terminal and Refer-
H
Contaminated Refrigerant ........................................ 3 . ence Value ..............................................................34.
General Refrigerant Precaution ............................... 4 . A/C System Self-Diagnosis Function ......................34 .
Precaution for Leak Detection Dye .......................... 4 . Operational Check ..................................................40 .
A/C Identification Label ............................................ 4
. Power Supply and Ground Circuit for Front Air I
Precaution for Refrigerant Connection ..................... 4 . Control and Unified Meter and A/C Amp ................42 .
Precaution for Service of Compressor ..................... 8 . LAN System Circuit ................................................45 .
Precaution for Service Equipment ............................ 8 . Mode Door Motor Circuit ........................................47 . ATC
Air Mix Door Motor Circuit ......................................50 .
PREPARATION .................................................10
. Air Mix Door Motor PBR Circuit ..............................53 .
Special Service Tool .............................................. 10
. Intake Door Motor Circuit ........................................53 .
HFC-134a (R-134a) Service Tool and Equipment 10 .... K
Blower Motor Circuit ...............................................55 .
Commercial Service Tool ....................................... 12
. Magnet Clutch Circuit .............................................61 .
REFRIGERATION SYSTEM .............................14
. Insufficient Cooling .................................................65 .
Insufficient Heating .................................................73 . L
Refrigerant Cycle ................................................... 14
.
Noise ......................................................................74
.
Refrigerant System Protection ............................... 14 .
Self-Diagnosis ........................................................75 .
Component Part Location ...................................... 15.
Memory Function ....................................................77 . M
OIL .....................................................................16
. Ambient Sensor Circuit ...........................................77 .
Maintenance of Oil Quantity in Compressor .......... 16
. In-vehicle Sensor Circuit .........................................80 .
Sunload Sensor Circuit ...........................................82 . N
AIR CONDITIONER CONTROL ........................18
. Intake Sensor Circuit ..............................................85 .
Description of Air Conditioner LAN Control Sys- Multiplex Communication Circuit ............................87 .
tem ......................................................................... 18
. A/C Display (without NAVI) .....................................89 .
System Construction .............................................. 18 . Front Air Control Self - Diagnosis ...........................90 . O
Description of Control System ................................ 20 .
Control Operation ................................................... 21 . UNIFIED METER AND A/C AMP. ..................... 92
Fail-Safe Function .................................................. 22 . Removal and Installation ........................................92
. P
Discharge Air Flow ................................................. 22 .
System Description ................................................ 23 .
AMBIENT SENSOR .......................................... 93
Removal and Installation ........................................93
.
CAN Communication System Description .............. 24 .
TROUBLE DIAGNOSIS ....................................25
. IN-VEHICLE SENSOR ...................................... 94
CONSULT-III Function (BCM) ................................ 25
. Removal and Installation ........................................94
.
Revision: July 2007 ATC-1 2008 Maxima
SUNLOAD SENSOR ........................................ 95
. Removal and Installation ...................................... 105
.
Removal and Installation ....................................... 95
.
DUCTS AND GRILLES ................................... 106
.
INTAKE SENSOR ............................................. 96
. Removal and Installation ...................................... 106
.
Removal and Installation ....................................... 96
.
REFRIGERANT LINES .................................... 109
.
BLOWER UNIT ................................................. 97
. HFC-134a (R-134a) Service Procedure ............... 109 .
Removal and Installation ....................................... 97
. Component .......................................................... 111.
Removal and Installation for Compressor ............ 112 .
BLOWER MOTOR ............................................ 98
. Removal and Installation for Compressor Clutch . 112
Removal and Installation ....................................... 98
. Removal and Installation for Low-Pressure Flexi-
ble Hose ............................................................... 115
.
INTAKE DOOR MOTOR ................................... 99
. Removal and Installation for High-pressure Flexi-
Removal and Installation ....................................... 99
. ble Hose ............................................................... 115
.
IN-CABIN MICROFILTER ............................... 100
. Removal and Installation for High-pressure Pipe . 116
Removal and Installation ......................................100
. Removal and Installation for Refrigerant Pressure
Sensor .................................................................. 116
.
HEATER & COOLING UNIT ASSEMBLY ...... 101
. Removal and Installation for Condenser .............. 116 .
Removal and Installation ......................................101
. Removal and Installation for Evaporator .............. 117 .
Removal and Installation for Expansion Valve ..... 118 .
HEATER CORE .............................................. 102
. Checking of Refrigerant Leaks ............................. 119 .
Removal and Installation ......................................102
. Checking System for Leaks Using the Fluorescent
Leak Detector ....................................................... 119
.
MODE DOOR MOTOR ................................... 103
. Dye Injection ........................................................ 120
.
Removal and Installation ......................................103
. Electronic Refrigerant Leak Detector ................... 120 .
AIR MIX DOOR MOTOR ................................. 104
. SERVICE DATA AND SPECIFICATIONS
Removal and Installation ......................................104
.
(SDS) ............................................................... 123
.
FAN CONTROL AMPLIFIER .......................... 105
. Service Data and Specification (SDS) ................. 123
.
Revision: July 2007 ATC-2 2008 Maxima
PRECAUTIONS
< SERVICE INFORMATION >
SERVICE INFORMATION A
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT B
PRE-TENSIONER" INFOID:0000000001721274
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along C
with a front 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 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. D
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING: E
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