wheel INFINITI FX35 2005 Repair Manual

TROUBLE DIAGNOSIS BRC-53
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
Inspection 14: CAN Communication CircuitAFS001T5
DTC U1000, C1156
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect the ABS actuator and electric unit (control unit) connector, and check the terminal for deformation, disconnection, looseness, and so on. If there is a malfunction, repair or
replace the terminal.
2. Reconnect connector to perform self-diagnosis.
Is
“CAN COMM CIRCUIT” or “ST ANG SEN COM CIR” displayed in the self-diagnosis display items?
YES >> Print out the self-diagnostic results, and refer to LAN-5, "Precautions When Using CONSULT-II" .
NO >> Connector terminal connection is loose, damaged, open, or shorted.
Component InspectionAFS001T6
VDC OFF SWITCH

Turn ignition switch OFF and disconnect VDC OFF switch con-
nector, and check continuity between VDC OFF switch connec-
tor M32 terminals 1 and 2.
Symptom 1: Excessive ABS Function Operation FrequencyAFS001T7
1. CHECK FRONT AND REAR AXLE
Make sure there is no excessive looseness in the front and rear axles.
OK or NG
OK >> GO TO 2.
NG >> Check front or rear axle system.
2. CHECK WHEEL SENSOR
Perform following inspection for wheel sensor:

Sensor mount and damage inspection

Sensor rotor mount and damage inspection

Sensor connector connection inspection

Sensor harness inspection
OK or NG
OK >> GO TO 3.
NG >> Replace sensor or sensor rotor.
3. CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 seconds after the ignition switch is turned ON or when driv-
ing.
OK or NG
OK >> Normal
NG >> Perform self-diagnosis. Refer to BRC-27, "
SELF-DIAGNOSIS" .
1 -2 : Continuity should exist when pushing
switch.
Continuity should not exist when releasing
switch.
SFIA1203E

WHEEL SENSORS BRC-57
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
WHEEL SENSORSPFP:47910
Removal and InstallationAFS001Z3
REMOVAL
1. Disconnect wheel sensor connector.
2. Remove wheel sensor mounting bolts, grommets (front sensor) and clip.
3. Remove wheel sensor.
CAUTION:
Be careful of the following when installing sensor.

As much as possible, avoid rotating sensor when removing it. Pull sensors out without pulling on
sensor harness.

Take care to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before
removing front wheel hub and bearing assembly and rear final drive. This is to avoid damage to
sensor wiring and loss of sensor function.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Be careful of the following when installing sensor. Tighten installation bolts to specified torques.

When installing, make sure there is no foreign material such as iron chips on pick-up and mount-
ing hole of sensor. Make sure no foreign material has been caught in the sensor rotor. Remove
any foreign material and clean the mount.

When installing front sensor, be sure to press rubber grommets in until they lock at the three loca-
tions shown in the figure (2 at shock absorbers and 1 at body panel). When installed, harness
must not be twisted. White line on harness must be visible from front.
PFIA0600E

BRC-58
[VDC/TCS/ABS]
WHEEL SENSORS
Revision: 2005 July 2005 FX

When installing rear sensor, attach harness at rear suspension member securely. Besides, har-
ness must not be twisted when installed.

SENSOR ROTOR BRC-59
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
SENSOR ROTORPFP:47970
Removal and InstallationAFS001Z4
REMOVAL
Front
Sensor rotor cannot be disassembled. To replace sensor rotor, replace wheel hub and bearing assembly.
Refer to FA X - 4 , "
Removal and Installation" (2WD model), FA X - 1 0 , "Removal and Installation" (AWD model).
Rear

Follow procedure below to remove rear sensor rotor.
–Remove side flange. Refer to RFD-12, "Removal and Installation" .
–Using a bearing replacer and puller, remove sensor rotor from side flange.
INSTALLATION
Front
Sensor rotor cannot be disassembled. To replace sensor rotor, replace wheel hub and bearing assembly.
Refer to FA X - 4 , "
Removal and Installation" (2WD model), FA X - 1 0 , "Removal and Installation" (AWD model).
Rear

Follow procedure below to install rear sensor rotor.
–Using a drift (special service tool), press rear sensor rotor onto
side flange.
–Install side flange. Refer to RFD-12, "Removal and Installation" .
BRG1210D

CO-8
[VQ35DE]
OVERHEATING CAUSE ANALYSIS
Revision: 2005 July 2005 FX
Except cool-
ing system
parts mal-
function — Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow Blocked bumper —
—
Blocked radiator grille
Installed car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser Blocked air flow
Installed large fog lamp
Symptom Check items

CO-34
[VK45DE]
OVERHEATING CAUSE ANALYSIS
Revision: 2005 July 2005 FX
Except cool-
ing system
parts mal-
function — Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for
extended time
Driving at extremely high
speed
Powertrain system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow Blocked bumper —
—
Blocked radiator grille
Installed car brassiere
Mud contamination or
paper clogging
Blocked radiator —
Blocked condenser Blocked air flow
Installed large fog lamp
Symptom Check items

DI-88
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
Target Setting
CAUTION:

Perform this operation in a horizontal position where there is a clear view for 5 m (16.4 ft) forward
and 3 m (9.84 ft) wide.

Place the target at a well-lighted location. (Poor lighting may make it hard to adjust.)

The target may not be detected when there is a light source within 1.5 m (4.92 ft) from either side
and within 1 m (3.28 ft) upward/downward from the target.

Make sure location of the sun. (Sunlight should not shine directly on front of the vehicle.)

The target may not be detected when there is the same pattern of black and white as the target
when the pattern is within 1 m (3.28 ft) from either side and upward/downward position from the
target. (It is desirable that the vehicle is positioned on the opposite side of a single-color wall.)
1. Mark a point at the center of lateral surface of each wheels (“A”, “B”, “C” and “D”).
NOTE:
Dangle a string with a cone from the fender so as to pass
through the center of wheel, and then mark a point at the center
of lateral surface of wheels.
2. Draw a line passing through points “A” and “B” on the left side of vehicle (line “LH”).
NOTE:
Approximately 4 m (13.12 ft) or more from the forward end of
vehicle.
3. Mark points on the line “LH”, at the positions 3850 mm (151.57 in) from the point “A” (“E”).
4. Draw a line passing through the points “C” and “D” on the right side of vehicle as with the step 2 (line “RH”).
NOTE:
Approximately 4 m (13.12 ft) or more from the forward end of vehicle.
5. Mark points on the line “RH”, at the positions 3850 mm (151.57 in) from the point “C” (“F”).
6. Draw a line passing through the points “E” and “F” (line “FW”).
PKIB4694E
PKIB4695E

LANE DEPARTURE WARNING SYSTEM DI-89
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Revision: 2005 July 2005 FX
7. Mark point at the center of the point “E” and “F”, on the line
“FW”.
CAUTION:
Make sure that “E” through “X” is equal to “F” through “X”.
8. Position the center of the right target to the point of “X”.
VEHICLE HEIGHT CHECK
Measure the wheel arch height. And calculate “Dh”.
NOTE:
“Dh” may be calculated as a minus value.
AIMING ADJUSTMENT
Operation Procedure
CAUTION:

Perform the adjustment under unloaded vehicle condition.

LDW indicator is turned off after the removal/installation, and blinks after replacement.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER on the data link connector.
3. Start the engine, wait for at least 10 seconds, and touch “START (NISSAN BASED VHCL)”.
PKIB5331E
Dh [mm] = (Hfl + Hfr) ÷ 2 − 840
where, Hfl: Front left wheel arch height [mm]
Hfr: Front right wheel arch height [mm]
SKIB3164E
PBIB1503E
SAIA0450E

DI-100
LANE DEPARTURE WARNING SYSTEM
Revision: 2005 July 2005 FX
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch any of “ALL SIGNALS” and “SELECTION FROM MENU” on selection screen.
3. Touch “START”.
4. Display the data monitor.
5. If necessary, touch “COPY” in turn, and print data.
Monitored Item
× : Applicable
VHCL SPD DATA MALF
[C1B02] ××

Wheel sensor malfunction

ABS actuator and electric unit (control unit) malfunction

A/T vehicle speed sensor malfunction

TCM malfunction DI-105
ABNRML TEMP DETECT
[C1B03] ××
Temperature around LDW camera unit is excessively
high. DI-105
CAN COMM CIRCUIT
[U1000] ×× LDW camera unit detected CAN communication malfunc-
tion. DI-105
CONTROL UNIT (CAN)
[U1010] ××LDW camera unit detected internal CAN communication
circuit malfunction. DI-105
Display item [Code]LDW indicator
lamp Fail-safe Malfunctions detected where... Reference
page
Monitored Item [unit] ALL
SIGNALS SELECTION
FROM
MENU Description
MAIN SW
[ON/OFF] ××
Displays [ON/OFF] status as judged from LDW switch signal.
SW ON LAMP
[ON/OFF] ××
Displays [ON/OFF] status of LDW system ON indicator signal output.
INDICATE LAMP
[ON/OFF] ××
Displays [ON/OFF] status of LDW indicator signal output.
BUZZER OUTPUT
[ON/OFF] ××
Displays [ON/OFF] status of LDW chime operation signal output.
LDW INACCURAT
[ON/OFF] ××
Displays LDW camera unit status.
VHCL SPD SE
[km/h] or [mph] ×× Displays vehicle speed calculated by LDW camera unit through CAN commu-
nication [ABS actuator and electric unit (control unit) transmits wheel sensor
signal through CAN communication].
VHCL SPD AT
[km/h] or [mph] ×× Displays vehicle speed calculated from A/T vehicle speed sensor by LDW
camera unit through CAN communication (TCM transmits A/T vehicle speed
sensor signal through CAN communication).
TURN SIGNAL
[OFF/LH/RH] ×× Displays “Turn signal” status, determined from BCM through CAN communica-
tion.
LANE DETCT LH
[ON/OFF] ××
Displays left lane marker is detected.
LANE DETCT RH
[ON/OFF] ××
Displays right lane marker is detected.
CROSS LANE LH
[ON/OFF] ××
Displays vehicle is crossing left lane.
CROSS LANE RH
[ON/OFF] ××
Displays vehicle is crossing right lane.
WARN LANE LH
[ON/OFF] ××
Displays warning for left lane.

ENGINE CONTROL SYSTEM EC-31
[VQ35DE]
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Revision: 2005 July 2005 FX
Multiport Fuel Injection (MFI) SystemABS006K7
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
*2: This signal is sent to the ECM through CAN communication line.
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
The amount of fuel injected from the fuel injector is determined by the ECM. The ECM controls the length of
time the valve remains open (injection pulse duration). The amount of fuel injected is a program value in the
ECM memory. The program value is preset by engine operating conditions. These conditions are determined
by input signals (for engine speed and intake air) from both the crankshaft position sensor and the mass air
flow sensor.
VARIOUS FUEL INJECTION INCREASE/DECREASE COMPENSATION
In addition, the amount of fuel injected is compensated to improve engine performance under various operat-
ing conditions as listed below.


During warm-up

When starting the engine

During acceleration

Hot-engine operation

When selector lever is changed from N to D

High-load, high-speed operation


During deceleration

During high engine speed operation
Sensor Input Signal to ECM ECM function Actuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
control Fuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch Gear position
Knock sensor Engine knocking condition
Battery Battery voltage*
3
Power steering pressure sensor Power steering operation
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
Air conditioner switch*
2Air conditioner operation
Wheel sensor*
2Vehicle speed