ABCDEFGHIJKMLQUICK REFERENCE INDEX AGENERAL INFORMATIONGIGeneral InformationBENGINEEMEngine MechanicalLUEngine Lubrication SystemCOEngine Cooling SystemECEngine Control SystemFLFuel SystemEXExhaust SystemACCAccelerator Control SystemCTRANSMISSION/
TRANSAXLEATAutomatic TransmissionDDRIVELINE/AXLETFTransferPRPropeller ShaftFFDFront Final DriveRFDRear Final DriveFAXFront AxleRAXRear AxleESUSPENSIONFSUFront SuspensionRSURear SuspensionWTRoad Wheels & TiresFBRAKESBRBrake SystemPBParking Brake SystemBRCBrake Control SystemGSTEERINGPSPower Steering SystemHRESTRAINTSSBSeat BeltsSRSSupplemental Restraint System
(SRS)IBODYBLBody, Lock & Security SystemGWGlasses, Window System & Mir-
rorsRFRoofEIExterior & InteriorIPInstrument PanelSESeatJAIR CONDITIONERATCAutomatic Air ConditionerKELECTRICALSCStarting & Charging SystemLTLighting SystemDIDriver Information SystemWWWiper, Washer & HornBCSBody Control SystemLANLAN SystemAVAudio Visual, Navigation & Tele-
phone SystemACSAuto Cruise Control SystemPGPower Supply, Ground & Circuit Ele-
mentsLMAINTENANCEMAMaintenanceMINDEXIDXAlphabetical IndexEdition: July 2003
Revision: November 2004
LASER BEAM AIMING ADJUSTMENT
ACS-13
[ICC]
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2. Adjust the height of the target stand so that the point of the trian-
gle aims the center of the ICC sensor.
ADJUSTING THE RIGHT-LEFT POSITION OF THE TARGET
1. Attach a scale (at least 350 mm [14 in] or longer) or stick as
shown in the figure.
2. Suspend a thread with weight on the tip of the thread to 310 mm
(12.2 in) left side of the target board from the center of the tar-
get board on top.
SETTING THE TARGET
1. Suspend a thread with weight on tip to splice the center of the front and back bumpers. Then, mark the
center point on the ground as each weight points.
2. Link the front and back bumpers center points marked on the ground, and mark a point 5 m ahead of the
sensor, on the extended line of the previous link line of the bumper center points. Then, adjust the position
of the target board so that the weight come on the top of the marked point (5 m ahead of the sensor) and
face to the vehicle.
3. Adjust the position of the target board so that the extended line
that links the center of the rear window (the center of the rear
window defogger pattern) and the center of the front windshield
(the setting part of the room mirror) align with the weight sus-
pended from the board.
4. Remove the thread suspended to the left side of board and suspend a thread with weight on tip on the
center of the target board.Then mark the point of weight on the ground.
SKIA6180E
SKIA1211E
SKIA5975E
SKIA1213E
ATC-1
AUTOMATIC AIR CONDITIONER
J AIR CONDITIONER
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AUTOMATIC AIR CONDITIONER
PRECAUTIONS .......................................................... 5
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 5
Precautions for Working with HFC-134a (R-134a) ..... 5
CONTAMINATED REFRIGERANT ....................... 5
General Refrigerant Precautions .............................. 7
Lubricant Precautions .............................................. 7
Precautions for Refrigerant Connection ................... 8
ABOUT ONE-TOUCH JOINT ................................ 8
FEATURES OF NEW TYPE REFRIGERANT
CONNECTION .................................................... 10
O-RING AND REFRIGERANT CONNECTION .... 11
Precautions for Servicing Compressor ................... 13
Precautions for Service Equipment ........................ 13
RECOVERY/RECYCLING EQUIPMENT ............ 13
ELECTRONIC LEAK DETECTOR ...................... 13
VACUUM PUMP ................................................. 14
MANIFOLD GAUGE SET .................................... 14
SERVICE HOSES ............................................... 14
SERVICE COUPLERS ........................................ 15
REFRIGERANT WEIGHT SCALE ...................... 15
CHARGING CYLINDER ...................................... 15
Precautions for Leak Detection Dye ....................... 16
IDENTIFICATION ................................................ 16
IDENTIFICATION LABEL FOR VEHICLE ........... 16
Wiring Diagrams and Trouble Diagnosis ................ 16
PREPARATION ......................................................... 17
Special Service Tools ............................................. 17
HFC-134a (R-134a) Service Tools and Equipment ... 18
Commercial Service Tools ...................................... 20
REFRIGERATION SYSTEM ..................................... 21
Refrigerant Cycle ................................................... 21
REFRIGERANT FLOW ....................................... 21
FREEZE PROTECTION ..................................... 21
Refrigerant System Protection ............................... 21
REFRIGERANT PRESSURE SENSOR ............. 21
PRESSURE RELIEF VALVE ............................... 21
V-6 Variable Displacement Compressor ................. 22
GENERAL INFORMATION ................................. 22DESCRIPTION .................................................... 23
Component Layout ................................................. 26
LUBRICANT .............................................................. 27
Maintenance of Lubricant Quantity in Compressor ... 27
LUBRICANT ........................................................ 27
LUBRICANT RETURN OPERATION .................. 27
LUBRICANT ADJUSTING PROCEDURE FOR
COMPONENTS REPLACEMENT EXCEPT
COMPRESSOR .................................................. 28
LUBRICANT ADJUSTING PROCEDURE FOR
COMPRESSOR REPLACEMENT ....................... 29
AIR CONDITIONER CONTROL ............................... 30
Description of Air Conditioner LAN Control System ... 30
System Construction .............................................. 30
OPERATION ........................................................ 30
TRANSMISSION DATA AND TRANSMISSION
ORDER ............................................................... 31
AIR MIX DOOR CONTROL (AUTOMATIC TEM-
PERATURE CONTROL) ..................................... 32
FAN SPEED CONTROL ...................................... 32
INTAKE DOOR CONTROL ................................. 32
OUTLET DOOR CONTROL ................................ 32
MAGNET CLUTCH CONTROL ........................... 33
SELF-DIAGNOSTIC SYSTEM ............................ 33
Description of Control System ................................ 34
Control Operation ................................................... 34
DISPLAY SCREEN .............................................. 35
AUTO SWITCH ................................................... 35
TEMPERATURE SWITCH (POTENTIO TEM-
PERATURE CONTROL) (DRIVER SIDE) ........... 35
TEMPERATURE SWITCH (POTENTIO TEM-
PERATURE CONTROL) (PASSENGER SIDE) ... 35
RECIRCULATION (REC) SWITCH ..................... 35
FRESH (FRE) SWITCH ...................................... 35
DEFROSTER (DEF) SWITCH ............................. 35
REAR WINDOW DEFOGGER SWITCH ............. 35
OFF SWITCH ...................................................... 35
A/C SWITCH ....................................................... 35
MODE SWITCH .................................................. 35
FAN SWITCH ...................................................... 35
AIR CONDITIONER CONTROL
ATC-35
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DISPLAY SCREEN
Displays the operational status of the system.
AUTO SWITCH
The compressor, intake doors, air mix doors, outlet doors and blower speed are automatically controlled
so that the in-vehicle temperature will reach, and be maintained at the set temperature selected by the
operator.
When pressing AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automati-
cally controlled.
TEMPERATURE SWITCH (POTENTIO TEMPERATURE CONTROL) (DRIVER SIDE)
Increases or decreases the set temperature.
TEMPERATURE SWITCH (POTENTIO TEMPERATURE CONTROL) (PASSENGER SIDE)
Increases or decreases the set temperature.
When the temperature switch is pressed, the dual switch indicator will automatically illuminate.
RECIRCULATION (REC) SWITCH
When REC switch is ON, REC switch indicator turns ON, and air inlet is fixed to REC.
When REC switch is ON and is pressed for approximately 1.5 seconds or longer, REC and FRE switch
indicators blink twice. Then, automatic control mode is entered. Inlet status is displayed even during auto-
matically controlled.
When FRE switch is turned ON, or when compressor is turned from ON to OFF, REC switch is automati-
cally turned OFF (fixed to FRE mode). REC mode can be re-entered by pressing REC switch again.
REC switch is not operated when DEF switch is turned ON, or at the D/F position.
FRESH (FRE) SWITCH
When FRE switch is ON, FRE switch indicator turns ON, and air inlet is fixed to FRE.
When FRE switch is ON and is pressed for approximately 1.5 seconds or longer, REC and FRE switch
indicators blink twice. Then, automatic control mode is entered. Inlet status is displayed even during auto-
matically controlled.
When REC switch is turned ON, FRE switch is automatically turned OFF (fixed to REC mode). FRE mode
can be re-entered by pressing FRE switch again.
DEFROSTER (DEF) SWITCH
Positions the air outlet doors to the defrost position. Also positions the intake doors to the fresh air position.
REAR WINDOW DEFOGGER SWITCH
When illumination is ON, rear window is defogged.
OFF SWITCH
The compressor and blower are OFF, the intake doors are set to the fresh air position, and the air outlet doors
are set to the foot (75% foot and 25% defrost) position.
A/C SWITCH
The compressor is ON or OFF.
(Pressing the A/C switch when the AUTO switch is ON will turn off the A/C switch and compressor.)
MODE SWITCH
Controls the air discharge outlets.
FAN SWITCH
Manually control the blower speed. Seven speeds are available for manual control (as shown on the display
screen).
DUAL SWITCH (WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM)
When the DUAL switch indicator is not illuminated and the DUAL switch is pressed, the driver-side setting
temperature and passenger-side setting temperature can each be set independently.
When the DUAL switch indicator is illuminated and the DUAL switch is pressed, the driver-side setting
temperature are applied to both sides.
AV-38
AUDIO
Revision: 2004 November 2004 FX35/FX45
Noise InspectionAKS00BMR
The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunction.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and opera-
tion of each piece of electrical equipment, and determine the cause.
NOTE:
The source of the noise can be found easily by listening to the noise while removing the fuses of electrical
components, one by one.
TYPE OF NOISE AND POSSIBLE CAUSE
Occurrence condition Possible cause
Occurs only when engine is
ON.A continuous growling noise occurs. The speed
of the noise varies with changes in the engine
speed.
Ignition condenser
A whistling noise occurs while the engine speed
is high. A booming noise occurs while the engine
is running and the lighting switch is ON.
Alternator
The occurrence of the noise is linked with the operation of the fuel pump.
Fuel pump condenser
Noise only occurs when various
electrical components are oper-
ating.A cracking or snapping sound occurs with the
operation of various switches.
Relay malfunction, radio malfunction
The noise occurs when various motors are oper-
ating.
Motor case ground
Motor
The noise occurs constantly, not just under certain conditions.
Rear window defogger coil malfunction
Open circuit in printed heater
Poor ground of antenna amplifier or
antenna feeder line
Mirror type film is attached on the rear win-
dow glass
After-market TV antenna and/or electrical
accessories such as radio are attached on
the rear window glass.
A cracking or snapping sound occurs while the vehicle is being driven, especially
when it is vibrating excessively.
Ground wire of body parts.
Ground due to incorrectinstallation of
parts.
Wiring connections or ashort circuit.
AV-144
NAVIGATION SYSTEM
Revision: 2004 November 2004 FX35/FX45
A/C and AV Switch Self-Diagnosis FunctionAKS00BN6
DESCRIPTION
It can check ON/OFF operation of each switch in the A/C and AV switch and diagnose the input signals to the
steering switch (audio).
Starting the SELF-DIAGNOSIS MODE
1. Turn ignition switch from OFF to ACC.
2. Within 10 seconds press and hold the witches “MUTE/II ” and
“PREV” simultaneously for 3 seconds.
Diagnosis Function
It can illuminate all the indicators (LED) in the A/C and AV switch.
It can check for continuity of the switches by sounding the buzzer when the A/C and AV switch is pressed.
It can check for continuity of harness between A/C and AV switch and steering switch (audio).
NOTE:
Indicators (LED) of REC/FRE switch change to “FRE” → “REC” → “FRE” every time the REC/FRE switch
is pushed. (These two do not turn on at a time.)
Impossible to check rear window defogger switch operation (No beep sound even under normal status).
Exiting the SELF-DIAGNOSIS MODE
Turn ignition switch OFF.
SKIB0314E
BCM (BODY CONTROL MODULE)
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SYSTEMS CONTROLLED BY BCM DIRECTLY
NOTE:
Power supply only. No system control.
SYSTEMS CONTROLLED BY BCM AND IPDM E/R
SYSTEMS CONTROLLED BY BCM AND COMBINATION METER
SYSTEMS CONTROLLED BY BCM AND INTELLIGENT KEY UNIT
System Reference
Power door lockBL-22, "
POWER DOOR LOCK SYSTEM"
Remote keyless entryBL-56, "REMOTE KEYLESS ENTRY SYSTEM"
Power window NOTEGW-15, "POWER WINDOW SYSTEM"
Sunroof NOTERF-10, "SUNROOF"
Room lamp timerLT-157, "INTERIOR ROOM LAMP"
Warning chimeDI-55, "WARNING CHIME"
Rear wiperWW-35, "REAR WIPER AND WASHER SYSTEM"
System Reference
Panic alarmBL-56, "
REMOTE KEYLESS ENTRY SYSTEM"
Theft warningBL-181, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"
IVIS (NATS)BL-206, "IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-NATS)"
Headlamp, tail lamp, auto light system, battery saver control
LT- 7 , "HEADLAMP - XENON TYPE -"
LT-38, "DAYTIME LIGHT SYSTEM"
LT-54, "AUTO LIGHT SYSTEM"
Fog lampLT-77, "FRONT FOG LAMP"
Front wiperWW-4, "FRONT WIPER AND WASHER SYSTEM"
Rear window defoggerGW-86, "REAR WINDOW DEFOGGER"
System Reference
Warning chimeDI-55, "
WARNING CHIME"
Turn signal and hazard warning lampsLT-89, "TURN SIGNAL AND HAZARD WARNING LAMPS"
System Reference
Intelligent KeyBL-84, "
INTELLIGENT KEY SYSTEM"
BCS-8
BCM (BODY CONTROL MODULE)
Revision: 2004 November 2004 FX35/FX45
MAJOR COMPONENTS AND CONTROL SYSTEM
System Input Output
Remote control entry system key fob
All-door locking actuator
Turn signal lamp (LH, RH)
Power door lock system
Power window main switch
(door lock and unlock switch)
Power window sub switch (passenger side)
(door lock and unlock switch)All-door locking actuator
Power supply (IGN) to power window, sunroof Ignition power supply Power window and sunroof system
Power supply (BAT) to power window, sunroof
and power seatBattery power supplyPower window, sunroof system and
power seat
Panic alarm
Key switch
Key fobIPDM E/R
Theft warning system
All-door switch
Hood switch
Key fob
Power window main switch (door lock and
unlock switch)
IPDM E/R
Security indicator lamp
Auto light system
Optical sensor
Combination switchIPDM E/R
Battery saver control
Ignition switch
Combination switchIPDM E/R
Headlamp Combination switch IPDM E/R
Tail lamp Combination switch IPDM E/R
Fog lamp Combination switch IPDM E/R
Turn signal lamp Combination switch
Turn signal lamp
Combination meter
Hazard lamp Hazard switch
Turn signal lamp
Combination meter
Room lamp timer
Key switch
key fob
Power window main switch (door lock and
unlock switch)
Front door switch driver side
All-door switchInterior room lamp
Key warning chime
Key switch
Front door switch driver sideCombination meter
(warning buzzer)
Light warning chime
Combination switch
Front door switch driver sideCombination meter
(warning buzzer)
Seat belt warning chime
Combination meter (Seat belt buckle
(driver side) switch)
Ignition switchCombination meter
(warning buzzer)
Vehicle-speed-sensing intermittent wiper
Combination switch
Combination meterIPDM E/R
Rear intermittent wiper Combination switch Rear wiper motor
Rear window defogger
Rear window defogger switch
Ignition switchIPDM E/R
A/C switch signal Unified meter and A/C amp. ECM
Blower fan switch signal Unified meter and A/C amp. ECM