Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti I35 A33 2002-2004 Approved Infiniti I35 2002 ha
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>> Download ha documenatation <<Text preview - extract from the document HEATER &
AIR CONDITIONER
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SECTION HA MA
EM
LC
EC
CONTENTS
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PRECAUTIONS ...............................................................2 Mode Door Motor.......................................................53
Supplemental Restraint System (SRS) AIR Air Mix Door Motor ....................................................60 AT
BAG and SEAT BELT PRE-TENSIONER...............2 Intake Door Motor......................................................63
Precautions for Working with HFC-134a (R-134a) .....2 Blower Motor..............................................................66
General Refrigerant Precautions .................................3 Magnet Clutch............................................................75 AX
Precautions for Leak Detection Dye............................3 Insufficient Cooling ....................................................81
Identification.................................................................4 Insufficient Heating ....................................................89
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Precautions for Refrigerant Connection ......................4 Noise..........................................................................90
Precautions for Servicing Compressor........................7 Self-diagnosis ............................................................91
Precautions for Service Equipment .............................7 Memory Function .......................................................92 BR
Wiring Diagrams and Trouble Diagnosis.....................9 ECON (ECONOMY) Mode ........................................93
PREPARATION .............................................................10 Ambient Sensor Circuit..............................................93
Special Service Tools ................................................10 In-vehicle Sensor Circuit............................................97 ST
HFC-134a (R-134a) Service Tools and Sunload Sensor Circuit............................................100
Equipment..................................................................11 Intake Sensor Circuit ...............................................104
DESCRIPTION ...............................................................14 Air Mix Door Motor PBR Circuit ..............................106
RS
Refrigeration System .................................................14 SERVICE PROCEDURE..............................................107
V-6 Variable Displacement Compressor....................15 HFC-134a (R-134a) Service Procedure ..................107 BT
Component Layout ....................................................19 Maintenance of Lubricant Quantity in
Introduction ................................................................20 Compressor .............................................................109
Features.....................................................................20 Compressor .............................................................112
Overview of Control System......................................23 Compressor Clutch ..................................................112
Control Operation ......................................................23 Heater Unit (Heater Core) .......................................116
Discharge Air Flow.....................................................25 Blower and Cooling Unit (A/C Evaporator) .............117 SC
System Description....................................................26 Refrigerant Lines .....................................................118
TROUBLE DIAGNOSES................................................27 Fluorescent Dye Leak Detector...............................122 EL
Component Location..................................................27 Belt...........................................................................123
Circuit Diagram ..........................................................29 Ventilation Air Filter..................................................123
Wiring Diagram - A/C, A - ..........................................30 SERVICE DATA AND SPECIFICATIONS (SDS) .......124 IDX
Auto Amp. Terminals and Reference Value...............34 Compressor .............................................................124
Self-diagnosis ............................................................36 Lubricant ..................................................................124
How to Perform Trouble Diagnoses for Quick Refrigerant ...............................................................124
and Accurate Repair ..................................................46 Engine Idling Speed (When A/C is ON) ..................124
Operational Check .....................................................47 Belt Tension .............................................................124
A/C System................................................................50
PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER" NHHA0153
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
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
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 INFINITI I35 is as follows:
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