Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti Q45 FY33 F50 2001-2006 Approved 2001_Q45 ha
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HEATER &
AIR CONDITIONER
HA
GI
SECTION MA
EM
LC
CONTENTS
EC
PRECAUTIONS AND PREPARATION............................3 Wiring Diagram - A/C, A -/With Navigation
Supplemental Restraint System (SRS) AIR System .......................................................................78
BAG and SEAT BELT PRE-TENSIONER...............3 Auto Amp. Terminals and Reference Value...............83 FE
Precautions for Working with HFC-134a (R-134a) .....3 Main Power Supply and Ground Circuit Check ........86
General Refrigerant Precautions .................................4 Self-diagnosis Circuit .................................................88
Precautions for Leak Detection Dye............................4 Multiplex Communication Circuit ...............................89
AT
A/C Identification Label................................................5 Ambient Sensor Circuit..............................................90
Precautions for Refrigerant Connection ......................5 In-vehicle Sensor Circuit............................................93 PD
Precautions for Servicing Compressor........................8 Intake Sensor Circuit .................................................96
Special Service Tools ..................................................9 Sunload Sensor Circuit..............................................97
HFC-134a (R-134a) Service Tools and Mode Door Motor Circuit (LAN)...............................100 FA
Equipment..................................................................10 Air Mix Door Motor Circuit (LAN) ............................102
Precautions for Service Equipment ...........................14 Bi-level Door Motor Circuit (LAN)............................104
DESCRIPTION ...............................................................16 LAN System Circuit .................................................106 RA
Refrigeration Cycle ....................................................16 Intake Door Motor Circuit ........................................109
V-6 Variable Displacement Compressor....................17 Blower Motor Circuit ................................................113
BR
Component Layout ....................................................20 Magnet Clutch Circuit ..............................................118
Air Conditioner LAN System......................................21 Rear Vent Door Motor Circuit ..................................122
Automatic Temperature Control (ATC) System .........23 Control Linkage Adjustment.....................................123 ST
Overview of Control System......................................24 SERVICE PROCEDURES ...........................................125
Control Operation ......................................................24 HFC-134a (R-134a) Service Procedure ..................125
Discharge Air Flow.....................................................27 Maintenance of Lubricant Quantity in RS
TROUBLE DIAGNOSES ...............................................29 Compressor .............................................................128
How to Perform Trouble Diagnoses for Quick Refrigerant Lines .....................................................130
and Accurate Repair ..................................................29 Checking Refrigerant Leaks ....................................131
BT
Operational Check .....................................................30 Electronic Refrigerant Leak Detector ......................131
Symptom Chart..........................................................36 Fluorescent Dye Leak Detector...............................134
Self-diagnosis ............................................................37 Compressor Mounting .............................................135
Preliminary Check......................................................55 Belt Tension .............................................................135
Performance Test Diagnoses ....................................63 Fast Idle Control Device (FICD) ..............................135 EL
Performance Chart ....................................................65 Compressor .............................................................136
Trouble Diagnoses for Abnormal Pressure ...............66 Compressor Clutch ..................................................136
Component Location..................................................69 Ventilation Air Filter..................................................139
IDX
Circuit Diagram/Without Navigation System .............71 SERVICE DATA AND SPECIFICATIONS (SDS) ........140
Wiring Diagram - A/C -/Without Navigation General Specifications.............................................140
System .......................................................................72 Inspection and Adjustment ......................................140
Circuit Diagram/With Navigation System ..................77
CONTENTS (Cont'd)
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