2004 INFINITI FX35 Timing

QUICK REFERENCE CHART FX35/FX45
QUICK REFERENCE CHART FX35/FX45PFP:00000
ENGINE TUNE-UP DATA (VQ35DE)ELS0003W
Engine modelVQ35DE
Firing order1-2-3-4-5-6
Idle speed
A/T (In “P” or “N” position)rpm
650±50
Ignition timing (BTDC at idle speed)
A/T (In “P” or “N” position)15°± 5°
CO% at idle 0.7 - 9.9 % and engine runs smoothly
Drive BeltDeflection adjustment Unit: mm (in) Tension adjustment Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and power
steering oil pump7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)294 (30, 66)730 - 818
(74.5 - 83.5,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208)
Air conditioner com-
pressor belt12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31 - 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
( 4 8 - 5 7 ,
106 - 126)
Applied pushing force 98N (10kg, 22lb) —
Radiater cap relief pressure
kPa (kg/cm
2 , psi)
Standard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Cooling system leakage testing pres-
surekPa (kg/cm
2 , psi)157(1.6, 23)
Compression pressure
kPa (kg/cm
2 , psi)/rpm
Standard 1,275 (13.0, 185) /300
Minimum 981 (10.0, 142)/300
Spark plug Standard type PLFR5A - 11
Hot type PLFR4A - 11
Cold type PLFR6A - 11
2004

QUICK REFERENCE CHART FX35/FX45
ENGINE TUNE-UP DATA (VK45DE)
FRONT WHEEL ALIGNMENT (Unladen* )
ELS0003X
* : Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.Engine modelVK45DE
Firing order1-8-7-3-6-5-4-2
Idle speed
A/T (In “P” or “N” position) rpm650±50
Ignition timing
(BTDC at idle speed)12°±5°
CO% at idle 0.7 - 9.9 % and engine runs smoothly
Tensions of drive belts Auto adjustment by auto tensioner
Radiater cap relief pressure
kPa (kg/cm
2 , psi)
Standard 78 - 98 (0.8 - 1.0 , 11 - 14 )
Limit 59 (0.6, 9)
Cooling system leakage testing pressure
157(1.6, 23)
kPa (kg/cm
2 , psi)
Compression pressure
kPa (kg/cm
2 , psi)/rpm
Standard 1,320 (13.5, 191) /300
Minimum 1,130 (11.5, 164)/300
Spark plug Standard type PLFR5A - 11
Hot type PLFR4A - 11
Cold type PLFR6A - 11
Camber Degree minute (Decimal degree) Minimum – 1° 29′ ( – 1.48° )
Nominal – 0° 44′ ( – 0.73° )
Maximum 0° 01′ ( 0.02° )
Left and right difference 45′ ( 0.75° ) or less
Caster Degree minute (Decimal degree) Minimum 3° 02′ ( 3.03° )
Nominal 3° 47′ ( 3.78° )
Maximum 4° 32′ ( 4.53° )
Left and right difference 45′ ( 0.75° ) or less
Kingpin inclination Degree minute (Decimal degree) Minimum 12° 20′ ( 12.33° )
Nominal 13° 05′ ( 13.08° )
Maximum 13 50′ ( 13.83° )
Total toe-in Distance (A – B) Minimum 0.6 mm ( 0.024 in )
Nominal 1.6 mm ( 0.063 in )
Maximum 2.6 mm ( 0.102 in )
Angle (left plus right)
Degree minute (Degree)Minimum –
Nominal 6′ ( 0.1° )
Maximum –
Wheel turning angle (Full turn) Inside MInimum 32° 00′ ( 32.0° )
Degree minute (Decimal degree) Nominal 35° 00′ ( 35.0° )
Maximum 36° 00′ ( 36.0° )
Outside
Nominal 30° 00′ ( 30.0° )
Degree minute (Decimal degree)
2004

AT-30
A/T CONTROL SYSTEM
Revision: 2004 November 2004 FX35/FX45
TCM FunctionACS002LF
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transmission senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SENSORS (or SIGNALS)

TCM

ACTUATORS
PNP switch
Accelerator pedal position sensor
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Vehicle speed signal
Manual mode switch signal
Stop lamp switch signal
Turbine revolution sensor
ATF pressure switchShift control
Line pressure control
Lock-up control
Engine brake control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
Duet-EA control
CAN systemInput clutch solenoid valve
Direct clutch solenoid valve
Front brake solenoid valve
High and low reverse clutch
solenoid valve
Low coast brake solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
A/T CHECK indicator lamp
Starter relay
Back-up lamp relay
SCIA5325E

A/T CONTROL SYSTEM
AT-33
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Revision: 2004 November 2004 FX35/FX45
During Shift Change
The necessary and adequate line pressure for shift change is set.
For this reason, line pressure pattern setting corresponds to input
torque and gearshift selection. Also, line pressure characteristic is
set according to engine speed, during engine brake operation.
At Low Fluid Temperature
When the A/T fluid temperature drops below the prescribed tempera-
ture, in order to speed up the action of each friction element, the line
pressure is set higher than the normal line pressure characteristic.
Shift ControlACS002LJ
The clutch pressure control solenoid is controlled by the signals from the switches and sensors. Thus, the
clutch pressure is adjusted to be appropriate to the engine load state and vehicle driving state. It becomes
possible to finely control the clutch hydraulic pressure with high precision and a smoother shift change charac-
teristic is attained.
SHIFT CHANGE
The clutch is controlled with the optimum timing and oil pressure by the engine speed, engine torque informa-
tion, etc.
PCIA0010E
PCIA0011E
PCIA0012E

TROUBLE DIAGNOSIS
AT-91
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Revision: 2004 November 2004 FX35/FX45
CONSULT-IIACS007AI
After performing AT- 1 0 3 , "Diagnostic Procedure Without CONSULT-II" , place check marks for results on the
AT- 4 6 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
FUNCTION
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 9 4
Data monitor Input/Output data in the ECU can be read.AT- 9 7
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read. —
Function testConducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.AT-100
ECU part number ECU part number can be read. —
Item name Condition Display value (Approx.)
ATF TEMP SE 1
0°C (32° F) - 20°C (68°F) - 80°C (176°F)2.2 - 1.8 - 0.6 V
ATF TEMP SE 22.2 - 1.7 - 0.45 V
TCC SOLENOIDWhen perform slip lock-up 0.2 - 0.4 A
When perform lock-up 0.4 - 0.6 A
SLCT LVR POSISelector lever in “N”,“P” position. N/P
Selector lever in “R” position. R
Selector lever in “D” position. D
VHCL/S SE·A/T During drivingApproximately matches the speedome-
ter reading.
ENGINE SPEED Engine runningClosely matches the tachometer read-
ing.
LINE PRES SOL During driving 0.2 - 0.6 A
TURBINE REV During driving (lock-up ON)Approximately matches the engine
speed.
VHCL/S SE·MTR During drivingApproximately matches the speedome-
ter reading.
ATF PRES SW 1Front brake engaged. Refer to AT- 2 0
.ON
Front brake disengaged. Refer to AT- 2 0
.OFF

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-195
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Revision: 2004 November 2004 FX35/FX45
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 4 2 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
OK or NG
OK >> GO TO 5.
NG >> Check the malfunction items. If any items are damaged,
repair or replace damaged parts. Refer to AT- 6 5 , "
Symp-
tom Chart" (Symptom No.67).
5. CHECK SYMPTOM
Check again. Refer to AT- 5 5 , "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 9 0 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Large Shock (“N” to “D” Position)ACS007GH
SYMPTOM:
A noticeable shock occurs when the selector lever is shifted from the “N” to “D” position.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate A/T fluid temperature sensor, engine speed signal, accelerator pedal
position sensor, ATF pressure switch 1, front brake solenoid valve, CAN communication line?
YES >> Check the malfunctioning system. Refer to AT- 1 3 9 , "DTC P1710 A/T FLUID TEMPERATURE
SENSOR CIRCUIT" , AT- 1 2 1 , "DTC P0725 ENGINE SPEED SIGNAL" , EC-555, "DTC P2122,
P2123 APP SENSOR" (for VQ35DE) or EC-1225, "DTC P2122, P2123 APP SENSOR" (for
VK45DE), EC-562, "
DTC P2127, P2128 APP SENSOR" (for VQ35DE) or EC-1232, "DTC P2127,
P2128 APP SENSOR" (for VK45DE), EC-576, "DTC P2138 APP SENSOR" (for VQ35DE) or
EC-1246, "
DTC P2138 APP SENSOR" (for VK45DE), AT- 1 3 6 , "DTC P1705 THROTTLE POSI-
TION SENSOR" , AT- 1 7 8 , "DTC P1841 ATF PRESSURE SWITCH 1" , AT- 1 5 6 , "DTC P1757
FRONT BRAKE SOLENOID VALVE" , AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. ENGINE IDLE SPEED
Check the engine idle speed. Refer to EC-37, "
Idle Speed and Ignition Timing Check" (for VQ35DE) or EC-
685, "Idle Speed and Ignition Timing Check" (for VK45DE).
OK or NG
OK >> GO TO 3.
NG >> Repair.
SCIA5199E

ATC-3
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Revision: 2004 November 2004 FX35/FX45COMPONENT INSPECTION ............................. 112
Intake Sensor Circuit ............................................. 113
COMPONENT DESCRIPTION .......................... 113
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ................................................................... 113
COMPONENT INSPECTION ............................. 114
CONTROLLER ........................................................115
Removal and Installation of A/C and AV Switch .... 115
REMOVAL .......................................................... 115
INSTALLATION .................................................. 115
AUTO AMP ..............................................................116
Removal and Installation of Unified Meter and A/C
Amp. ...................................................................... 116
REMOVAL .......................................................... 116
INSTALLATION .................................................. 116
AMBIENT SENSOR .................................................117
Removal and Installation ....................................... 117
REMOVAL .......................................................... 117
INSTALLATION .................................................. 117
IN-VEHICLE SENSOR .............................................118
Removal and Installation ....................................... 118
REMOVAL .......................................................... 118
INSTALLATION .................................................. 118
SUNLOAD SENSOR ...............................................119
Removal and Installation ....................................... 119
REMOVAL .......................................................... 119
INSTALLATION .................................................. 119
INTAKE SENSOR ................................................... 120
Removal and Installation ...................................... 120
REMOVAL ......................................................... 120
INSTALLATION ................................................. 120
BLOWER UNIT ....................................................... 121
Removal and Installation ...................................... 121
REMOVAL ......................................................... 121
INSTALLATION ................................................. 121
Disassembly and Assembly ................................. 122
BLOWER MOTOR .................................................. 123
Removal and Installation ...................................... 123
REMOVAL ......................................................... 123
INSTALLATION ................................................. 123
INTAKE DOOR MOTOR ......................................... 124
Removal and Installation ...................................... 124
REMOVAL ......................................................... 124
INSTALLATION ................................................. 124
IN-CABIN MICROFILTER ....................................... 125
Removal and Installation ...................................... 125
FUNCTION ........................................................ 125
REPLACEMENT TIMING .................................. 125
REPLACEMENT PROCEDURES ..................... 125
HEATER & COOLING UNIT ASSEMBLY .............. 126
Removal and Installation ...................................... 126
REMOVAL ......................................................... 126
INSTALLATION ................................................. 127
Disassembly and Assembly ................................. 128
MODE DOOR MOTOR ........................................... 130
Removal and Installation ...................................... 130
REMOVAL ......................................................... 130
INSTALLATION ................................................. 130AIR MIX DOOR MOTOR .........................................131
Removal and Installation ......................................131
REMOVAL .........................................................131
INSTALLATION .................................................131
HEATER CORE .......................................................132
Removal and Installation ......................................132
REMOVAL .........................................................132
INSTALLATION .................................................132
DUCTS AND GRILLES ...........................................133
Removal and Installation ......................................133
REMOVAL .........................................................133
INSTALLATION .................................................136
REFRIGERANT LINES ...........................................137
HFC-134a (R-134a) Service Procedure ...............137
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ................................................................137
Components .........................................................139
VK45DE .............................................................139
VQ35DE ............................................................140
Removal and Installation of Compressor ..............140
REMOVAL .........................................................140
INSTALLATION .................................................142
Removal and Installation of Compressor Clutch ..143
REMOVAL .........................................................143
INSTALLATION .................................................145
Removal and Installation of Low-pressure Flexible
Hose .....................................................................147
REMOVAL .........................................................147
INSTALLATION .................................................148
Removal and Installation of High-pressure Flexible
Hose .....................................................................148
REMOVAL .........................................................148
INSTALLATION .................................................149
Removal and Installation of Low-pressure Pipe 1
(Engine Compartment) .........................................149
REMOVAL .........................................................149
INSTALLATION .................................................150
Removal and Installation of High-pressure Pipe 1
and 2 (Engine Compartment) ...............................150
REMOVAL .........................................................150
INSTALLATION .................................................151
Removal and Installation of Low-pressure Pipe 2
and High-pressure Pipe 3 .....................................151
REMOVAL .........................................................151
INSTALLATION .................................................152
Removal and Installation of Liquid Tank ...............153
REMOVAL .........................................................153
INSTALLATION .................................................153
Removal and Installation of Condenser ................154
REMOVAL .........................................................154
INSTALLATION .................................................154
Removal and Installation of Refrigerant Pressure
Sensor ..................................................................155
REMOVAL .........................................................155
INSTALLATION .................................................155
Removal and Installation of Evaporator ................155
REMOVAL .........................................................155
INSTALLATION .................................................155
Removal and Installation of Expansion Valve .......156

IN-CABIN MICROFILTER
ATC-125
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Revision: 2004 November 2004 FX35/FX45
IN-CABIN MICROFILTERPFP:27277
Removal and InstallationAJS001FC
FUNCTION
Air inside passenger compartment is kept clean at either recircula-
tion or fresh mode by installing in-cabin microfilter into blower unit.
REPLACEMENT TIMING
Replace in-cabin microfilter.
Refer to MA-9, "
CHASSIS AND BODY MAINTENANCE" in SCHEDULE 1 and MA-11, "CHASSIS AND
BODY MAINTENANCE" in SCHEDULE 2.
Caution label is fixed inside the glove box.
REPLACEMENT PROCEDURES
1. Remove the instrument passenger lower panel. Refer to IP-11, "Removal and Installation" .
2. Remove the filter cover, then remove the in-cabin microfilter.
3. Take out the in-cabin microfilter from blower unit.
4. Replace with new one and reinstall on blower unit.
5. Reinstall the glove box.
RJIA1331E
RJIA2040E