check engine INFINITI FX35 2008 Service Manual

CHASSIS AND BODY MAINTENANCEMA-33
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PA D
 Check for wear or damage.
Checking Steering Ge ar and LinkageINFOID:0000000001328932
STEERING GEAR
 Check gear housing and boots for looseness, damage and grease
leakage.
 Check connection with steering column for looseness.
STEERING LINKAGE
Check ball joint, dust cover and other component parts for looseness, wear, damage and grease leakage.
Checking Power Steering Fluid and LineINFOID:0000000001328933
Check fluid level in reservoir tank with engine off.
Use “HOT” range at fluid temperatures of 50 to 80 °C (122 to 176 °F)
or “COLD” range at fluid temperatures of 0 to 30 °C (32 to 86 °F).
CAUTION:
 Do not overfill.
 Recommended fluid is Genuin e NISSAN PSF or equivalent.
Refer to MA-9

SMA922A
Front Rear
Standard thickness 11.0 mm (0.433 in) 8.5 mm (0.335 in)
Repair limit thickness 2.0 mm (0.079 in) 2.0 mm (0.079 in)
BRA0010D
SLIA0014E
SST850C
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SERVICE DATA AND SPECIFICATIONS (SDS)
MA-37
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001328938
BELT DEFLECTION AND TENSION (VQ35DE)
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
BELT DEFLECTION AND TENSION (VK45DE)
ENGINE COOLANT CAPACITY (APPROXIMATE) (VQ35DE)
Unit: (US qt, lmp qt)
ENGINE COOLANT CAPACITY (APPROXIMATE) (VK45DE)
Unit: (US qt, lmp qt)
RADIATOR
Unit: kPa (kg/cm2, psi)
ENGINE OIL CAPACITY (APPROXIMATE) (VQ35DE)
Deflection 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 pump belt 12 (0.47)
7 - 8
(0.28 - 0.31) 6 - 7
(0.24 - 0.28) 294 (30, 66) 730 - 818
(74.5 - 83.5, 164 - 184) 838 - 926
(85.5 - 94.5, 188 - 208)
A/C compressor
belt 12 (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
(48 - 57,
106 - 126)
Applied pushing
force 98 N (10 kg, 22 lb) —
PBIC5323E
Tension of drive belts Auto-adjustment by auto tensioner
Engine coolant capacity (With reservoir tank at “MAX” level) 8.6 (9-1/8, 7-5/8)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (7/8, 3/4)
Engine coolant capacity (With reservoir tank at “MAX” level) 10.0 (10-5/8, 8-3/4)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (7/8, 3/4)
Cap relief pressure Standard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Leakage testing pressure 157 (1.6, 23)
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PG-18
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
 All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communica-
tion with other control units is st opped, mode switches to sleep status.
3. Sleep status  IPDM E/R operates in low power mode.
 CAN communication is stopped.
 When a change in CAN communication line is detected, mode switches to CAN communication status.
 When a change hood switch or ignition switch signal is detected, mode switches to CAN communication
status.
CAN Communication System DescriptionINFOID:0000000001328871
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent ). In CAN communication, control units are con-
nected with 2 communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
CAN Communication UnitINFOID:0000000001328872
Refer to LAN-43, "CAN System Specification Chart".
Function of Detecting I gnition Relay MalfunctionINFOID:0000000001328873
 When contact point of integrated ignition relay is st uck and cannot be turned OFF, IPDM E/R turns ON park-
ing, license plate, side marker and tail lamps for 10 minutes to indicate ignition relay malfunction.
 When a state of ignition relay having built-in does not agr ee with a state of ignition switch signal input by a
CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
CONSULT-III Function (IPDM E/R)INFOID:0000000001328874
CONSULT-III can display each diagnostic item using the diagnostic test mode shown following.
Self Diagnostic Result
Display Item List
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF — ON OFF —
OFF ON ON (10 minutes)
Inspection Item, Diagnosis Mode Description
Self Diagnostic Result The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis.
Data Monitor The input/output data of the IPDM E/R is displayed in real time.
CAN Diag Support Monitor The result of transmit/receive diagnosis of CAN communication can be read.
Active test The IPDM E/R sends a drive signal to electronic components to check their operation.
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PG-20
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
NOTE:
This item is displayed, but cannot be tested.
Auto Active TestINFOID:0000000001328875
DESCRIPTION
In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to the
following systems:
 Rear window defogger
 Front wipers
 Parking, license plate, side marker and tail lamps
 Front fog lamps
 Headlamps (Hi, Lo)
 A/C compressor (magnetic clutch)
 Cooling fan
OPERATION PROCEDURE
1. Close hood and front door (passenger side), and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON, and within 20 seconds, pre ss drivers door switch 10 times (close other doors).
Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chir ps once oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed. NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
Be sure to inspect BL-38, "
Check Door Switch" when the auto active t est cannot be performed.
INSPECTION IN AUTO ACTIVE TEST MODE
When auto active test mode is actuated, the following eight steps are repeated three times.
Front wiper (HI, LO) operation FRONT WIPER With a certain operation (Off, Hi, Lo),
the front wiper relay (Lo, Hi) can
be operated.
Cooling fan operation MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Lamp (HI, LO, FOG) opera-
tion LAMPSWith a certain operation (Off, Hi, Lo, Fog), the lamp relay (Lo, Hi, Fog)
can be operated.
Cornering lamp operation CORNERING LAMP
NOTE—
Horn operation HORN With a certain On-Off operation, the horn relay can be operated. Test item CONSULT-III screen display Description
PKIB6583E
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PG-23
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IPDM E/R Terminal ArrangementINFOID:0000000001328877
IPDM E/R Power/Ground Circuit InspectionINFOID:0000000001370717
1.CHECK FUSE AND FUSIBLE LINK
Make sure the following fusible links or IPDM E/R fuses are not blown.
CKIM0237E
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PG-24
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link blown, be sure to e liminate cause of malfunction before installing new one.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector.
3. Check voltage between IPDM E/R harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors.
2. Check continuity between IPDM E/R harness connectors and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.
U1000 CAN COMM CIRCUITINFOID:0000000001366489
1.PERFORM SELF DIAGNOSTIC
1. Turn ignition switch ON and wait for 2 seconds or more.
2. Check “Self Diagnostic Result” of IPDM E/R.
Is
“CAN COMM CIRCUIT” displayed?
YES >> Refer to LAN-43, "CAN System Specification Chart".
NO >> Refer to GI-25, "
How to Perform Efficient Diagnosis for an Electrical Incident".
Removal and Installation of IPDM E/RINFOID:0000000001328880
REMOVAL
1. Remove battery. Refer to SC-6, "Removal and Installation".
Terminal No. Power source Fuse and fusible link No.
1
Battery power E
2 C
— 71
78
Te r m i n a l s
Voltage (Ap-
prox.)
(+) (-)
IPDM E/R connector Terminal Ground
E3 1
Battery voltage
2
PKIB6562E
IPDM E/R connector Terminal
GroundContinuity
E8 38
E9 50
Ye s
60
SKIA6184E
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PR-4
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FRONT PROPELLER SHAFT
FRONT PROPELLER SHAFT
On-Vehicle InspectionINFOID:0000000001327466
APPEARANCE AND NOISE INSPECTION
Check the propeller shaft tube surface for dents or cracks. If damaged, replace propeller shaft assembly.
PROPELLER SHAFT VIBRATION
If vibration is present at high speed, inspect propeller shaft runout first.
1. Measure propeller shaft runout at runout measuring point by rotating final drive companion flange with hands. For measuring
point, refer to "Propeller Shaft Runout Measuring Point".
2. If runout still exceeds specifications, separate propeller shaft at final drive companion flange; then rotate companion flange 90,
180, 270 degrees and install propeller shaft.
3. Check runout again. If runout still exceeds specifications, replace propeller shaft assembly.
4. Check the vibration by driving vehicle.
Propeller Shaft Runout Measuring Point
Propeller shaft runout measuring point (Point “ ”)
ComponentINFOID:0000000001327467
Removal and InstallationINFOID:0000000001327468
REMOVAL
1. Remove the front and rear engine undercover with a power tool.
2. Remove the front cross bar with a power tool. Refer to FSU-5
.
3. Remove the exhaust front tube bracket with a power tool. Refer to EX-3
.
4. Disconnect the heated oxygen sensor harness connector. Propeller shaft runout limit : 0.8 mm (0.031 in)
SDIA1759E
Dimension A: 381.5 mm (15.01 in)
PDIA0768J
1. Propeller shaft assembly 2. O-ring
Refer to
GI-8, "
Component", for the symbols in the figure.
PDIA1215E
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POWER STEERING FLUIDPS-7
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POWER STEERING FLUID
Checking Fluid LevelINFOID:0000000001327709
 Stop engine before performing a fluid level check.
 Ensure that fluid level is between the MAX range and MIN level.
 Because fluid level differs within the HOT range and the COLD range, check it carefully.
CAUTION:
 Do not overfill the Max level.
 Do not reuse any used power steering fluid.
 For recommended fluid, refer to MA-9, "
Fluids and Lubricants".
Checking Fluid LeakageINFOID:0000000001327710
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connections, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 to 80 ° C (122 to
176 °F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loos en flare nut and then retighten. Do not over tighten con-
nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-27
.
6. Check steering gear boots for accumulation of fluid indicating a from steering gear.
Air Bleeding Hydraulic SystemINFOID:0000000001327711
Incomplete air bleeding causes the following. When this happens, bleed air again.
 Generation of air bubbles in reservoir tank.
 Generation of clicking noise in oil pump.
 Excessive buzzing in oil pump. NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from oil
pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the low-level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully to the right and then fully to the left, and keep for about
three seconds. Then check whether a fluid leakage has occurred.
3. Repeat the 2nd procedure several times at about three seconds intervals. CAUTION:
Do not hold steering wheel in the locked position more than 10 seconds. (There is the possibility
that oil pump may be damaged.)
4. Check generation of air bubbles and cloud in fluid.
5. If air bubbles and the cloud don't fade, stop engine, hold air bleeding until air bubbles and the cloud fade.
Perform the 2nd and the 3rd procedures again. HOT : Fluid temperatures from 50 to 80
°C (122 to
176 °F)
COLD : Fluid temperatures from 0 to 30 °C (32 to 86 °F)
SGIA0232J
SGIA0506E
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PS-8
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POWER STEERING FLUID
6. Stop engine, check fluid level.
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STEERING WHEELPS-9
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STEERING WHEEL
On-Vehicle Inspection and ServiceINFOID:0000000001327712
CHECKING CONDITION OF INSTALLATION
 Check installation condition of steering gear assemb ly, front suspension, axle and steering column.
 Check if movement exists when steering wheel is mo ved 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-17
.
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 circumfe rence 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-5,
"Wheel Alignment Inspection".
1. Set vehicle to the straight direction, chec k if steering wheel is in the neutral position.
2. If it is not in the neutral position, remo ve 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 so cket 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. Start engine.
3. Bring power steering fluid up to adequate operating te mperature. [Make sure temperature of fluid is
approximately 50 to 80 °C (122 to 176 °F).]
NOTE:
Tires need to be inflated normal pressure.
4. Check steering wheel turning force when steering wheel has been turned 360 ° from neutral position.
NOTE:
Multiply the distance L from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
5. If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump.
Regarding relief hydraulic pressure of oil pump, refer to PS-27, "
On-Vehicle Inspection and Service".
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)
Steering wheel turning force : Less than 7.45 N·m (0.76 kg-m, 66 in-lb)
SGIA1136E
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