transmission level INFINITI FX35 2004 User Guide

ON-VEHICLE SERVICE
AT-259
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Revision: 2004 November 2004 FX35/FX45
Rear Oil SealACS007H1
REMOVAL
1. Remove center muffler with power tool. Refer to EX-3, "Removal
and Installation" .
2. Remove rear propeller shaft. Refer to PR-7, "
Removal and
Installation" .
3. Remove transfer assembly from transmission assembly (AWD
models). Refer to TF-43, "
Removal and Installation" .
4. Remove rear oil seal using a flat-bladed screwdriver.
CAUTION:
Be careful not to scratch rear extension assembly (2WD
models) or adapter case assembly (AWD models).
INSTALLATION
CAUTION:
After completing installation, check A/T fluid leakage and fluid level. Refer to AT- 1 2 , "
Changing A/T
Fluid" , AT- 1 2 , "Checking A/T Fluid" .
1. As shown in the right figure illustration, use the drift to drive rear
oil seal into rear extension assembly (2WD models) or adapter
case assembly (AWD models) until it is flush.
CAUTION:

Apply ATF to rear oil seal.

Do not reuse rear oil seal.
2. Install transfer assembly to transmission assembly (AWD mod-
els). Refer to TF-43, "
Removal and Installation" .
3. Install rear propeller shaft. Refer to PR-7, "
Removal and Installa-
tion" .
4. Install center muffler. Refer to EX-3, "
Removal and Installation" .
SCIA5410E
SCIA5411E

AT-262
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
CAUTION:
After completing installation, check A/T fluid leakage and fluid level. Refer to AT- 1 2 , "
Changing A/T
Fluid" , AT- 1 2 , "Checking A/T Fluid" .
1. Install revolution sensor in transmission case.
CAUTION:

Do not subject it to impact by dropping or hitting it.

Do not disassemble.

Do not allow metal filings, etc. to get on the sensor's front
edge magnetic area.

Do not place in an area affected by magnetism.
2. Connect revolution sensor connector.
3. Securely fasten revolution sensor harness with clips.
4. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-48, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown in
the figure.
CAUTION:
Completely remove all moisture, oil and old sealant, etc.
from transmission case and rear extension assembly
mounting surfaces.
5. Install rear extension assembly to transmission case. (With nee-
dle bearing.): 5.8 N·m (0.59 kg-m, 51 in-lb)
SCIA3997E
SCIA3969E
SCIA5212E
SCIA3431E

AT-266
TRANSMISSION ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
TRANSMISSION ASSEMBLYPFP:31020
Removal and Installation (2WD Models)ACS002S1
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the battery cable from the negative terminal.
2. Remove engine cover.
3. Remove A/T fluid level gauge.
4. Remove engine under cover with power tool.
5. Remove front cross bar. Refer to FSU-8, "
Components" .
6. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Removal and Installation" .
7. Remove three way catalyst. Refer to EM-26, "
Removal and Installation" .
8. Remove rear propeller shaft. Refer to PR-7, "
Removal and Installation" .
9. Remove control rod. Refer to AT- 2 3 3 , "
Control Device Removal and Installation" .
1. Transmission assembly 2. A/T fluid charging pipe 3. O-ring
4. Fluid cooler tube 5. Copper washer 6. A/T fluid level gauge
7. Engine rear member 8. Insulator
SCIA5050E

AT-268
TRANSMISSION ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
INSTALLATION
Install the removed parts in the reverse order of the removal, while paying attention to the following work.

When installing transmission assembly to the engine, attach the
fixing bolts in accordance with the following standard.

Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque.
CAUTION:

When turning crankshaft, turn it clockwise as viewed
from the front of the engine.

When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts.

After converter is installed to drive plate, rotate crankshaft several turns and check to be sure
that transmission rotates freely without binding.

Install crankshaft position sensor (POS). Refer to EM-30, "Removal and Installation" .

After completing installation, check fluid leakage, fluid level, and the A/T positions of A/T. Refer to AT- 1 2 ,
"Changing A/T Fluid" , AT- 2 3 4 , "Adjustment of A/T Position" , AT- 2 3 4 , "Checking of A/T Position" .
Bolt No. 1 2 3 4
Number of bolts 1 5 2 2
Bolt length
“ ”mm (in)55 (2.17) 65 (2.56) 65 (2.56) 35 (1.38)
Tightening torque
N·m (kg-m, ft-lb)75
(7.7, 55)55
(5.6, 41)47
(4.8, 35)
: 51 N·m (5.2 kg-m, 38 ft-lb)
SCIA3949E
SCIA2288E

TRANSMISSION ASSEMBLY
AT-269
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Revision: 2004 November 2004 FX35/FX45
Removal and Installation (AWD models) ACS0033A
COMPONENTS (FOR VQ35DE)
1. A/T fluid charging pipe 2. O-ring 3. Insulator
4. Heat insulator 5. Engine rear member 6. Copper washer
7. Fluid cooler tube 8. Transmission assembly 9. A/T fluid level gauge
SCIA5193E

AT-270
TRANSMISSION ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
COMPONENTS (FOR VK45DE)
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the battery cable from the negative terminal.
2. Remove engine cover.
3. Remove A/T fluid level gauge.
4. Remove engine under cover with power tool.
5. Remove front cross bar. Refer to FSU-8, "
Components" .
6. Remove exhaust front tube and center muffler with power tool. Refer to EX-3, "
Removal and Installation" .
7. Remove three way catalyst. Refer to EM-26, "
Removal and Installation" (for VQ35DE models), EM-178,
"Removal and Installation" (for VK45DE models).
8. Remove front propeller shaft. Refer to PR-4, "
Removal and Installation" .
9. Remove rear propeller shaft. Refer to PR-7, "
Removal and Installation" .
10. Remove control rod. Refer to AT- 2 3 3 , "
Control Device Removal and Installation" .
1. A/T fluid charging pipe 2. O-ring 3. Insulator
4. Engine rear member 5. Heat insulator 6. Copper washer
7. Fluid cooler tube 8. Transmission assembly 9. A/T fluid level gauge
SCIA5194E

TRANSMISSION ASSEMBLY
AT-273
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Revision: 2004 November 2004 FX35/FX45

Align the positions of tightening bolts for drive plate with those of
the torque converter, and temporarily tighten the bolts. Then,
tighten the bolts with the specified torque.
CAUTION:

When turning crankshaft, turn it clockwise as viewed
from the front of the engine.

When tightening the tightening bolts for the torque con-
verter after fixing the crankshaft pulley bolts, be sure to
confirm the tightening torque of the crankshaft pulley
mounting bolts.

After converter is installed to drive plate, rotate crankshaft several turns and check to be sure
that transmission rotates freely without binding.

Install crankshaft position sensor (POS). Refer to EM-30, "Removal and Installation" , EM-181, "Removal
and Installation" .

After completing installation, check fluid leakage, fluid level, and the positions of A/T. Refer to AT- 1 2 ,
"Changing A/T Fluid" , AT- 2 3 4 , "Checking of A/T Position" , AT- 2 3 4 , "Adjustment of A/T Position" . : 51 N·m (5.2 kg-m, 38 ft-lb)
SCIA2010E

AIR CONDITIONER CONTROL
ATC-31
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Revision: 2004 November 2004 FX35/FX45
TRANSMISSION DATA AND TRANSMISSION ORDER
Unified meter and A/C amp. data is transmitted consecutively to each of the door motors following the form
shown in figure below.
Start:
Initial compulsory signal sent to each of the door motors.
Address:
Data sent from the unified meter and A/C amp. is selected according to data-based decisions made by the air
mix door motor, mode door motor and intake door motor.
If the addresses are identical, the opening angle data and error check signals are received by the door motor
LCUs. The LCUs then make the appropriate error decision. If the opening angle data is usual, door control
begins.
If an error exists, the received data is rejected and corrected data received. Finally, door control is based upon
the corrected opening angle data.
Opening Angle:
Data that shows the indicated door opening angle of each door motor.
Error Check:
Procedure by which sent and received data is checked for errors. Error data is then compiled. The error check
prevents corrupted data from being used by the air mix door motor, mode door motor and intake door motor.
Error data can be related to the following symptoms.

Unusual electrical frequency

Poor electrical connections

Signal leakage from transmission lines

Signal level fluctuation
RJIA1748E

ENGINE CONTROL SYSTEM
EC-31
[VQ35DE]
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EC
Revision: 2004 November 2004 FX35/FX45
System ChartABS006K6
*1: This sensor is not used to control the engine system. This is used only for the on board diagnosis.
*2: This sensor is not used to control the engine system under normal conditions.
*3: This input signal is sent to the ECM through CAN communication line.
*4: This output signal is sent from the ECM through CAN communication line.Input (Sensor) ECM Function Output (Actuator)

Camshaft position sensor (PHASE)

Crankshaft position sensor (POS)

Mass air flow sensor

Engine coolant temperature sensor

Heated oxygen sensor 1

Throttle position sensor

Accelerator pedal position sensor

Park/neutral position (PNP) switch

Intake air temperature sensor

Power steering pressure sensor

Ignition switch

Battery voltage

Knock sensor

Refrigerant pressure sensor

Stop lamp switch

ICC steering switch

ICC brake switch

ASCD steering switch

ASCD brake switch

Fuel level sensor*1 *3

EVAP control system pressure sensor

Fuel tank temperature sensor*1

Heated oxygen sensor 2*2

TCM (Transmission control module)*3

ABS actuator and electric unit (control unit)*3

ICC unit*3

Air conditioner switch*3

Wheel sensor*3

Electrical load signal*3
Fuel injection & mixture ratio control Fuel injector
Electronic ignition system Power transistor
Fuel pump control Fuel pump relay
ICC vehicle speed control Electric throttle control actuator
ASCD vehicle speed control Electric throttle control actuator
On board diagnostic system
MIL (On the instrument panel)*
4
Heated oxygen sensor 1 heater control Heated oxygen sensor 1 heater
Heated oxygen sensor 2 heater control Heated oxygen sensor 2 heater
EVAP canister purge flow controlEVAP canister purge volume control
solenoid valve
Air conditioning cut control
Air conditioner relay*
4
Cooling fan control
Cooling fan relay*4
ON BOARD DIAGNOSIS for EVAP system EVAP canister vent control valve

EC-38
[VQ35DE]
BASIC SERVICE PROCEDURE
Revision: 2004 November 2004 FX35/FX45
2. Connect No. 1 ignition coil and No. 1 spark plug with suitable
high-tension wire as shown, and attach timing light clamp to this
wire.
3. Check ignition timing.
Idle Speed/Ignition Timing/Idle Mixture Ratio AdjustmentABS006KD
PREPARATION
1. Make sure that the following parts are in good order.

Battery

Ignition system

Engine oil and coolant levels

Fuses

ECM harness connector

Vacuum hoses

Air intake system
(Oil filler cap, oil level gauge, etc.)

Fuel pressure

Engine compression

Throttle valve

Evaporative emission system
2. On air conditioner equipped models, checks should be carried out while the air conditioner is OFF.
3. On automatic transmission equipped models, when checking idle rpm, ignition timing and mixture ratio,
checks should be carried out while shift lever is in N position.
4. When measuring CO percentage, insert probe more than 40 cm (15.7 in) into tail pipe.
5. Turn OFF headlamp, heater blower, rear window defogger.
PBIB1573E
SEF166Y
PBIB1602E