2006 INFINITI M35 fuel

RSU-2
PRECAUTIONS
Revision: 2006 January2006 M35/M45
PRECAUTIONSPFP:00001
PrecautionsNES000J2
When installing rubber bushings, final tightening must be carried out under unladen conditions with tires
on ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
–Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
After servicing suspension parts, be sure to check wheel alignment.
Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are pre-
oiled, tighten as they are.

REAR SUSPENSION ASSEMBLY
RSU-5
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RSU
Revision: 2006 January2006 M35/M45
REAR SUSPENSION ASSEMBLYPFP:55020
On-Vehicle Inspection and ServiceNES000J6
Make sure the mounting conditions (looseness, back lash) of each component and component conditions
(wear, damage) are normal.
SUSPENSION ARM BALL JOINT AXIAL END PLAY INSPECTION
Measure axial end play by placing and moving up/down with an iron pry bar or something similar between sus-
pension arm and axle.
CAUTION:
Be careful not to damage ball joint boot.
SHOCK ABSORBER INSPECTION
Check shock absorber for oil leakage, damage and replace if malfunction is detected.
Wheel Alignment InspectionNES000J7
DESCRIPTION
Measure wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats in designated positions.
PRELIMINARY INSPECTION
Check the following:
1. Tires for improper air pressure and wear.
2. Road wheels for runout. Refer to WT-6, "
ROAD WHEEL" .
3. Wheel bearing axial end play. Refer to RAX-5, "
WHEEL BEARING INSPECTION" .
4. Ball joint axial end play of suspension arm. Refer to RSU-5, "
SUSPENSION ARM BALL JOINT AXIAL
END PLAY INSPECTION" .
5. Shock absorber operation.
6. Each mounting point of axle and suspension for looseness and deformation.
7. Each of front lower link, rear lower link, radius rod, rear suspension member, suspension arm and shock
absorber for cracks, deformation, and other damage.
8. Vehicle height (posture).
GENERAL INFORMATION AND RECOMMENDATIONS
A four-wheel thrust alignment should be performed.
–This type of alignment is recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
–The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
–The rack should be checked to ensure that it is level.
Make sure the machine is properly calibrated.
–Your alignment equipment should be regularly calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule.Standard value
Axial end play : 0 mm (0 in)

RSU-18
SERVICE DATA
Revision: 2006 January2006 M35/M45
SERVICE DATAPFP:00030
Wheel Alignment (Unladen)*NES000JH
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Ball JointNES000JI
Wheelarch Height (Unladen*)NES000JJ
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions. Axle2WD AWD
Tire 245/45R18 245/40R19 245/45R18
Camber
Degree minute (Decimal degree)Minimum – 1
10 (– 1.17)– 1 20 (– 1.33)– 0 40 (– 0.67)
Nominal – 0
40 (– 0.67)– 0 50 (– 0.83)– 0 10 (– 0.17)
Maximum – 0
10 (– 0.17)– 0 20 (– 0.33)0 20 (0.33)
Total toe-inDistanceMinimum 0.1 mm (0.004 in)
Nominal 2.8 mm (0.110 in)
Maximum 5.5 mm (0.217 in)
Angle (left plus right)
Degree minute (Decimal degree)Minimum 0
(0)
Nominal 7
(0.12)
Maximum 14
(0.23)
Axial end play0 mm (0 in)
Swing torque 0.5 - 3.4 Nꞏm (0.06 - 0.34 kg-m, 5 - 30 in-lb)
Measurement on spring balance (cotter pinhole position) 8.1 - 54.8 N (0.83 - 5.5 kg, 1.82 - 12.32 lb)
Rotating torque 0.5 - 3.4 Nꞏm (0.06 - 0.34 kg-m, 5 - 30 in-lb)
Applied model2WD AWD
245/45R18 245/40R19 245/45R18
Front (Hf)USA 717 mm (28.23 in)
721 mm (28.39 in)731 mm (28.78 in)
CANADA 718 mm (28.27 in) 732 mm (28.82 in)
Rear (Hr)USA 710 mm (27.95 in)
711 mm (27.99 in)725 mm (28.54 in)
CANADA 711 mm (27.99 in) 726 mm (28.58 in)
SFA818A

STARTING SYSTEM
SC-15
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Revision: 2006 January2006 M35/M45
DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1. CHECK “B” TERMINAL CIRCUIT
1. Turn ignition switch OFF.
2. Make sure that starter motor “B” terminal connection is clean
and tight.
3. Check voltage between starter motor “B” terminal and ground.
OK or NG
OK >> GO TO 2.
NG >> Check harness between battery and starter motor for open circuit.
2. CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)
Check voltage between starter motor battery positive terminal and
starter motor “B” terminal.
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter motor for poor continuity.
3. CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
Check voltage between starter motor case and battery negative ter-
minal.
OK or NG
OK >> “B” terminal circuit is OK. Further inspection necessary.
Refer to SC-14, "
WORK FLOW" .
NG >> Check the starter motor case and ground for poor conti-
nuity.
Terminals
Voltage (Approx.) (+)
(–)
Starter motor
“B” terminalTerminal
E203 2 Ground Battery voltage
PKIB8793E
Terminals
ConditionVoltage
(Approx.)
(+)(–)
Starter motor
“B” terminalTerminal
Battery positive
terminalE203 2 When the ignition
switch is in
START positionLess than
0.5 V
PKIB8794E
Terminals
Condition Voltage (Approx.)
(+) (–)
Starter motor
caseBattery negative
terminalWhen the ignition
switch is in START
positionLess than 0.2 V
PKIB8795E

SC-16
STARTING SYSTEM
Revision: 2006 January2006 M35/M45
DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1. CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Check voltage between starter motor harness connector and
ground.
OK or NG
OK >> “S” connector circuit is OK. Further inspection necessary. Refer to SC-14, "WORK FLOW" .
NG >> Check the following.
Ignition switch and PDU
IPDM E/R
Harness between starter motor and IPDM E/R
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
Te r m i n a l s
ConditionVoltage
(Approx.) (+)
(–)
Starter motor
connectorTe r m i n a l
F9 (VQ35DE)
E210 (VK45DE)1 GroundWhen the ignition
switch is in
START positionBattery voltage
PKIB8796E
Engine coolant temperature [C (F)] Voltage [V]
30 to 20 (22 to 4) 8.6
19 to 10 (2 to 14) 9.1
9 to 0 (16 to 32) 9.5
More than 1 (More than 34) 9.9

SC-24
CHARGING SYSTEM
Revision: 2006 January2006 M35/M45
POWER GENERATION VOLTAGE VARIABLE CONTROL SYSTEM
Power generation voltage variable control system that controls the power generation voltage of the alternator
has been adopted. By performing the power generation voltage variable control, the engine load due to the
power generation of the alternator is reduced and fuel consumption is decreased.
Operation Description
The battery current sensor detects the charging/discharging current of the battery. ECM judges the battery
condition based on this signal.
ECM judges whether to perform the power generation voltage variable control according to the battery
condition.
When performing the power generation voltage variable control, ECM calculates the target power genera-
tion voltage according to the battery condition and sends the calculated value as the power generation
command value to IPDM E/R.
IPDM E/R converts the received power generation command value into the power generation command
signal (PWM signal) and sends it to the IC regulator.
The IC regulator controls the power generation voltage by the target power generation voltage based on
the received power generation command signal.
When there is no power generation command signal, the alternator performs the normal power generation
according to the characteristic of the IC regulator.
NOTE:
When any malfunction is detected in the power generation voltage variable control system, the power genera-
tion is performed according to the characteristic of the IC regulator of the alternator.
Main Component Part
BATTERY CURRENT SENSOR
Battery current sensor (1) is installed to the battery cable at the
negative terminal, and it detects the charging/discharging cur-
rent of the battery and sends the voltage signal to ECM accord-
ing to the current value.
SKIB5009E
PKIB8806E

TF-10
AWD SYSTEM
Revision: 2006 January2006 M35/M45
AWD SYSTEMPFP:41650
Power Transfer DiagramNDS000DB
System DescriptionNDS000DC
DESCRIPTION
Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
Makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.
On roads which do not require AWD, it contributes to improved fuel economy by driving in conditions close
to rear-wheel drive.
Sensor inputs determine the vehicle's turning condition, and in response tight cornering/braking are con-
trolled by distributing optimum torque to front wheels.
NOTE:
When driving, if there is a large difference between front and rear wheel speed which continues for a long
time, fluid temperature of drive system parts becomes too high and AWD warning lamp flashes rapidly.
(When AWD warning lamp flashes, vehicle changes to rear-wheel drive conditions.) Also, optional distri-
bution of torque sometimes becomes rigid before lamp flashes rapidly, but it is not malfunction.
If AWD warning lamp is flashing rapidly, stop vehicle and allow it to idle for some time. Flashing will stop
and AWD system will be restored.
When driving, AWD warning lamp may flash slowly if there is a significant difference in diameter of the
tires. At this time, vehicle performance is not fully available and cautious driving is required. (Continues
until engine is turned OFF.)
If the warning lamp flashes slowly during driving but remains OFF after engine is restarted, the system is
normal. If it again flashes slowly after driving for some time, vehicle must be inspected.
When the difference of revolution speed between the front and rear wheel the shift occasionally changes
to direct 4-wheel driving conditions automatically. This is not malfunction.
SDIA1611E