engine spec INFINITI FX35 2004 Service Manual

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Revision: 2004 November 2004 FX35/FX45
Concept of Auto Active Test

IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu-
nication line. Therefore, when auto active test mode is activated successfully, CAN communication
between IPDM E/R and BCM is normal.

If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed
using auto active test.
Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause
Any of front wipers, tail
and parking lamps, front
fog lamps, and head
lamps (Hi, Lo) do not
operate.Perform auto active
test. Does system in
question operate?YES

BCM signal input system
NO

Lamp/wiper motor malfunction

Lamp/wiper motor ground circuit malfunction

Harness/connector malfunction between IPDM E/R and system in question

IPDM E/R (integrated relay) malfunction
Rear window defogger
does not operate.Perform auto active
test. Does rear win-
dow defogger oper-
ate?YES

BCM signal input circuit
NO

Rear window defogger relay circuit

Open circuit of rear window defogger

IPDM E/R malfunction
A/C compressor does
not operate.Perform auto active
test. Does mag-
netic clutch oper-
ate?YES

BCM signal input circuit

CAN communication signal between BCM and ECM.

CAN communication signal between ECM and IPDM E/R
NO

Magnetic clutch malfunction

Harness/connector malfunction between IPDM E/R and magnetic clutch

IPDM E/R (integrated relay) malfunction
Cooling fan does not
operate.Perform auto active
test. Does cooling
fan operate?YES

ECM signal input circuit

CAN communication signal between ECM and IPDM E/R
NO

Cooling fan motor malfunction

Harness/connector malfunction between IPDM E/R and cooling fan motor

IPDM E/R (integrated relay) malfunction
Oil pressure warning
lamp does not operate.Perform auto active
test. Does oil pres-
sure warning lamp
blink?YES

Harness/connector malfunction between IPDM E/R and oil pressure switch

Oil pressure switch malfunction

IPDM E/R malfunction
NO

CAN communication signal between BCM and Unified Meter and A/C Amp

Combination meter

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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Revision: 2004 November 2004 FX35/FX45
IPDM E/R Power/Ground Circuit InspectionAKS007NW
1. CHECK FUSE AND FUSIBLE LINK

Make sure the following fusible links or IPDM E/R fuses are not blown.
OK or NG
OK >> GO TO 2.
NG >> Replace fuse or fusible link.
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E3.
3. Check voltage between IPDM E/R harness connector E3 termi-
nals 1 (W/R), 2 (W/L) and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace IPDM E/R power supply circuit harness.
3. CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors E8 and E9.
2. Check continuity between IPDM E/R harness connectors E8 ter-
minal 38 (B), E9 terminal 50 (B), 60 (B) and ground.
OK or NG
OK >> INSPECTION END
NG >> Replace ground circuit harness of IPDM E/R.
Terminal No. Signal name Fuse, fusible link No.
1, 2, 16 Battery power F/L–C, F/L–E, F/L–G, Fuse No. 82, 90
Battery voltage should exist.
SKIA6183E
Continuity should exist.
SKIA6184E

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Inspection With CONSULT-II (Self-Diagnosis)AKS005SG
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. CHECK SELF DIAGNOSTIC RESULT
1. Connect CONSULT-II and select “IPDM E/R” on the Diagnosis System Selection screen.
2. Select “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
3. Check display content in self diagnostic results.
NOTE:
The Details for Display of the Period Are as Follows:

CRNT: Error currently detected with IPDM E/R.

PAST: Error detected in the past and memorized with IPDM E/R.
Contents displayed
NO DTC IS DETECTED.FURTHER TESTING MAY BE REQUIRED.>>INSPECTION END
CAN COMM CIRC>>After print-out of the monitor items, refer to LAN-4, "
Precautions When Using CON-
SULT-II" .
CONSULT-II displayCONSULT-II
display codeTIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.- - - No malfunction
CAN COMM CIRC U1000××Any of or several items below have errors.

TRANSMIT DIAG

ECM

BCM/SEC

PR-4
FRONT PROPELLER SHAFT
Revision: 2004 November 2004 FX35/FX45
FRONT PROPELLER SHAFTPFP:37200
On-Vehicle ServiceADS000KL
PROPELLER SHAFT VIBRATION
If vibration is present at high speed, inspect propeller shaft runout first.
1. Measure propeller shaft runout at several points by rotating final
drive companion flange with your hands.
2. If runout still exceeds specifications, disconnect propeller shaft
at the final drive companion flange; then rotate companion
flange 90, 180, 270 degrees and reconnect propeller shaft.
3. Check runout again. If runout still exceeds specifications,
replace propeller shaft assembly.
4. Check the vibration by driving the vehicle.
APPEARANCE CHECKING

Inspect propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.
Removal and InstallationADS000KM
REMOVAL
1. Remove the front and rear engine undercover with power tool.
2. Remove the front cross bar with power tool. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
3. Remove the exhaust front tube bracket with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Disconnect the heated oxygen sensor harness connector.
5. Remove the exhaust front tube mounting nuts with power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove the right bank catalytic converter with power tool. Refer to EM-26, "
Removal and Installation"
(VQ35DE) or EM-178, "Removal and Installation" (VK45DE).
7. Remove the power steering piping mounting bolts. Refer to PS-
41, "HYDRAULIC LINE" .
8. Remove the power steering gear box fixing bolts to secure work-
ing area for removal of propeller shaft. Refer to PS-19, "
POWER
STEERING GEAR AND LINKAGE" .
CAUTION:
Be careful not to damage the steering gear box piping dur-
ing removal.Propeller shaft runout limit : 0.6 mm (0.024 in) or less
SDIA1759E
SDIA1515E
1. Propeller shaft assembly 2. O-ring
SDIA1516E

FRONT PROPELLER SHAFT
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9. Put matching marks on propeller shaft flange and companion
flange on the front drive as shown.
CAUTION:
For matching mark, use paint. Never damage the propeller
shaft flange and companion flange on the front drive.
10. Set the transmission jack at the transfer, remove the mounting
bolts and rear engine mounting bracket. On the VK45DE engine,
lower the transmission jack about 40 - 50 mm (0.16 - 0.20 in).
11. Remove the bolts and then remove the propeller shaft from the
front final drive and transfer.
INSPECTION
1. As shown in the figure, while fixing yoke on one side, check axial
play of joint. If outside the standard, replace propeller shaft
assembly.
2. Check propeller shaft for bend and damage. If damage is
detected, replace propeller shaft assembly.
INSTALLATION
Note the following, install in the reverse order of removal.

Install the propeller shaft into the transfer.

Install the propeller shaft onto the front final drive flange while
matching marks that are marked during removal.

Tighten the drive flange bolts to specified torque.
CAUTION:
Do not reuse the bolts and nuts. Always replace it with a
new one.

After installation, check the vibration by driving the vehicle. If the
vibration is present, remove the propeller shaft from the final
drive companion flange and turn the propeller shaft 90, 180 or
270 degrees and reinstall the propeller shaft to the companion
flange.
Recheck the vibration by driving the vehicle.
SDIA1517E
SDIA1518E
Journal axial play : 0 mm (0 in)
PDA0005D
SDIA1517E

PS-10
STEERING WHEEL
Revision: 2004 November 2004 FX35/FX45
STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceAGS000GW
CHECKING CONDITION OF INSTALLATION

Check installation condition of steering gear assembly, front suspension, axle and steering column.

Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.

Check if the mounting bolts for steering gear assembly are loose
or not. Refer to PS-19, "
POWER STEERING GEAR AND LINK-
AGE" .
CHECKING STEERING WHEEL PLAY
1. Set tires to the straight ahead, start engine, then turn steering wheel to the left and right lightly, and mea-
sure steering wheel movement on the outer circumference when steering wheel is turned up to the point
where tires start moving.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
Check neutral position on steering wheel after confirming that front wheel alignment is correct. Refer to FSU-
6, "Wheel Alignment Inspection" .
1. Set vehicle to the straight direction, check if steering wheel is in the neutral position.
2. If it is not in the neutral position, remove steering wheel and reinstall it correctly.
3. If the neutral position cannot adjust in the two teeth of steering gear assembly, loosen outer socket lock
nuts of steering outer sockets, then adjust outer socket by the same amount in the opposite direction.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Remove driver air bag module from steering wheel. Refer to SRS-36, "
DRIVER AIR BAG MODULE" .
3. Start engine at idle, make steering fluid reach to normal operat-
ing temperature [50 to 80°C (122 to 176°F)], then check steering
wheel turning torque with pre-load gauge (SST).
4. If steering wheel turning force is out of the specification, check
relief hydraulic pressure of oil pump. Refer to PS-31, "
POWER
STEERING OIL PUMP" . End play of the axle direction for steering wheel : 0 mm (0 in)
SGIA0546E
Steering wheel play on the outer circumference : 0 − 35 mm (0 − 1.38 in)
Turning torque : 7.45 N·m (0.76 kg-m, 66 in-lb) or less
SGIA0459E

STEERING WHEEL
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Revision: 2004 November 2004 FX35/FX45
CHECKING FRONT WHEEL TURNING ANGLE

Check front wheel turning angle after the toe-in inspection.
Place front wheels on turning radius gauges and rear wheels on
stands so that vehicle can be level. Check the maximum inner
and outer wheel turning angles for LH and RH road wheels.

Start engine and run at idle, turn steering wheel all the way right
and left, measure the turning angle.

Any turning angles are not adjustable. If any of steering angles
are out of the specification, check if the following parts are wear
or damaged.
–Steering gear
–St ee rin g c o lum n
–Front suspension components
If found that they are worn or damaged, replace them with new ones respectively.
Removal and InstallationAGS000GX
Refer to PS-12, "STEERING COLUMN" .
FAA0016D
Tire Size 18 inch and 20 inch
Inner wheel (Angle: A)Minimum 32°00’ (32.0°)
Nominal 35°00’ (35.0°)
Maximum 36°00’ (36.0°)
Outer wheel (Angle: B) Nominal 30°00’ (30.0°)
SGIA0055E

POWER STEERING OIL PUMP
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Revision: 2004 November 2004 FX35/FX45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceAGS000H2
CHECKING RELIEF OIL PRESSURE (VQ35DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
1. Connect oil pressure gauge (SST) and oil pressure gauge
adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches
50 to 80°C (122 to 176°F).
CAUTION:

Warm up engine with shut-off valve fully opened. If
engine is started with shut-off valve closed, fluid pres-
sure in power steering pump increases to maximum. This
will raise fluid temperature excessively.

Be careful not to contact hose with belt when engine is
started.
3. With engine at idle, close shut-off valve and read the relief oil
pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.
If relief oil pressure is outside the specification, disassemble and repair oil pump. Refer to PS-33, "
Disas-
sembly and Assembly (VQ35DE models)" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly.
Refer to PS-8, "
Air Bleeding Hydraulic System" .
CHECKING RELIEF OIL PRESSURE (VK45DE MODELS)
CAUTION:
Before starting work, confirm belt tension is proper.
SGIA0570E
SST
Pressure gaugeKV48103500
(J26357&J26357-10)
Oil pump sideEye joint KV48102500-01 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
High pressure
piping sideFlare joint KV48102500-02 ( — )
Washer KV48102500-04 ( — )
Bolt KV48102500-03 ( — )
Relief oil pressure:
9,900 - 10,700 kPa (101 - 109 kg/cm
2 , 1449 - 1564 psi)
SGIA0522E

PS-32
POWER STEERING OIL PUMP
Revision: 2004 November 2004 FX35/FX45
1. Connect oil pressure gauge (SST) and oil pressure gauge
adapter (SST) between oil pump discharge connector and high
pressure hose and then bleed air from the hydraulic circuit.
2. Start engine. Allow engine to run until tank temperature reaches 50 to 80°C (122 to 176°F).
CAUTION:

Warm up engine with shut-off valve fully opened. If engine is started with shut-off valve closed,
fluid pressure in power steering pump increases to maximum. This will raise fluid temperature
excessively.

Be careful not to contact hose with belt when engine is started.
3. With engine at idle, close shut-off valve and read the relief oil pressure.
CAUTION:
Do not close shut-off valve of pressure gauge for more than 10 seconds.
4. After measurement, open shut-off valve slowly.
If relief oil pressure is outside the specification, disassemble and repair oil pump. Refer to PS-37, "
Disas-
sembly and Assembly (VK45DE models)" .
5. After inspection, disconnect oil pressure gauge (SST) and oil pressure gauge adapter (SST) from hydrau-
lic circuit, connect oil pump discharge connector and high pressure hose. Add fluid and bleed air from
hydraulic circuit thoroughly. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and Installation (VQ35DE models)AGS000HI
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Loosen belt tensioner adjust screw, then remove belt from oil pump pulley. Refer to EM-15, "
DRIVE
BELTS" .
3. Drain power steering fluid from reservoir tank.
SGIA0570E
SST
Pressure gauge and shut-off valveKV48103500
(J26357 and
J26357-10)
Oil pump sideConnector A and
O-ringKV48105300-4
and 5295262U10
(—)
Eye-bolt and O-
ringKV48105300-3
and 5295262U00
(—)
High pressure
piping sideConnector B and
O-ringKV48105300-1
and 5295262U00
(—)
Nut KV48105300-2
( — )
SGIA0572E
Relief oil pressure:
9,900 - 10,700 kPa (101 - 109 kg/cm
2 , 1449 - 1564 psi)

POWER STEERING OIL PUMP
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Revision: 2004 November 2004 FX35/FX45
4. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-41,
"HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.

After installation, adjust belt tension. Refer to EM-15, "DRIVE BELTS" .

After installation, bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" .
Removal and Installation (VK45DE models)AGS000HJ
REMOVAL
1. Remove undercover from vehicle with power tool.
2. Remove power steering oil pump belt from auto tensioner. Refer to EM-169, "
DRIVE BELTS" .
3. Drain power steering fluid from reservoir tank.
4. Remove piping of high pressure and low pressure from power steering oil pump (drain fluid from their pip-
ings). Refer to PS-41, "
HYDRAULIC LINE" .
5. Remove mounting bolts, then remove power steering pump.
INSTALLATION
Refer to PS-41, "HYDRAULIC LINE" for tightening torque. Install in the reverse order removal.
After installation, bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
NOTE:
Adjustment of belt tension is no necessary because engine of this model equips auto tensioner.
Disassembly and Assembly (VQ35DE models)AGS000HE
INSPECTION BEFORE DISASSEMBLY
Disassemble power steering oil pump only if the following items are found.

Oil leakage from oil pump

Deformed or damaged pulley
1. Rear cover 2. Teflon ring 3. O-ring
4. Rear side plate 5. Rotor snap ring 6. Dowel pin
7. Cam ring 8. Rotor 9. Vane
10. Cartridge 11. Front side plate 12. O-ring
13. Flow control valve A 14. Spring 15. Flow control valve B assembly
16. Body assembly 17. Oil seal 18. Pulley
19. O-ring 20. Suction pipe 21. Bracket
SGIA0622E