2007 INFINITI FX35 brake

SB-8
SEAT BELTS
Revision: 2006 July 2007 FX35/FX45
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip fixing the seat belt and ensure that the webbing returns smoothly.
7. Repeat steps above as necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE INSPECTION
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt
in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat
belt to fully wind back into the retractor.
Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-
erly.
Stationary Inspection for ELR Function
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from
extending further.
Stationary Inspection for ALR Function
1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the webbing partially. A clicking noise should be heard as the webbing retracts indicating that the retractor is in the Automatic Locking Retractor (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If necessary replace the retractor assembly.
4. Allow the entire length of the webbing to retract to cancel the automatic locking mode.
Moving Inspection for ELR Function
WARNING:
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1. Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop. The driver and passenger must be prepared to brace themselves in the event the retractor does not lock.
Apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, per-
form the retractor off-vehicle inspection.

AWD SYSTEM TF-13
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Revision: 2006 July 2007 FX35/FX45
COMPONENTS FUNCTION DESCRIPTION
CAN CommunicationNDS0009X
SYSTEM DESCRIPTION
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. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to LAN-49, "
CAN System Specification Chart" .
Component parts Function
AWD control unit

Controls driving force distribution by signals from each sensor and switch from rear wheel driving
mode (0:100) to AWD mode (50:50).

2WD mode is available by fail-safe function if malfunction is detected in AWD system.
Wheel sensors Detects wheel speed.
AWD solenoid Controls electric controlled coupling by command current from AWD control unit.
Electric controlled coupling Transmits driving force to front final drive.
AWD warning lamp

Illuminates if malfunction is detected in electrical system of AWD system.

There is 1 blink in 2 seconds if rotation difference of front wheels and rear wheels is large.

There are 2 blinks in 1 second if load is still applied to driving parts.
ABS actuator and electric unit
(control unit) Transmits the following signals via CAN communication to AWD control unit.

Vehicle speed signal

Stop lamp switch signal (brake signal)
ECM Transmits the following signals via CAN communication to AWD control unit.

Accelerator pedal position signal

Engine speed signal
Unified meter and A/C amp. Transmits conditions of parking brake switch via CAN communication to AWD control unit.

TROUBLE DIAGNOSIS TF-21
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Revision: 2006 July 2007 FX35/FX45
AWD Control Unit Input/Output Signal Reference ValuesNDS000A4
AWD CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II
Monitored item [Unit] Content Condition Display value
FR RH SENSOR
(km/h) or (mph) Wheel speed
(Front wheel right) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
FR LH SENSOR
(km/h) or (mph) Wheel speed
(Front wheel left) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
RR RH SENSOR
(km/h) or (mph) Wheel speed
(Rear wheel right) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
RR LH SENSOR
(km/h) or (mph) Wheel speed
(Rear wheel left) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
BATTERY VOLT
(V) Power supply voltage for
AWD control unit Ignition switch: ON Battery voltage
THRTL POS SEN
(%) Throttle opening condition When depressing accelerator pedal
(Value rises gradually in response to
throttle position.) 0 - 100%
ETS SOLENOID
(A) Monitored value of current at
AWD solenoid Engine running

At idle speed
Approx. 0.000A
Engine running

When depressing accelerator
pedal Approx. 0.000 - 2.400A*
STOP LAMP SW
(ON/OFF) Condition of brake pedal
operation Brake pedal: Depressed ON
Brake pedal: Released OFF
ENG SPEED SIG
(RUN/STOP) Condition of engine running Engine stopped
(Engine speed: Less than 400 rpm) STOP
Engine running
(Engine speed: 400 rpm or more) RUN
ETS ACTUATOR
(ON/OFF) Operating condition of AWD
actuator relay (integrated in
AWD control unit) Engine stopped (Ignition
switch: ON) OFF
Engine running ON
4WD WARN LAMP
(ON/OFF) AWD warning lamp condition AWD warning lamp: ON ON
AWD warning lamp: OFF OFF
4WD MODE MON
(AUTO) Control status of AWD Engine running AUTO
DIS-TIRE MONI
(mm) Improper size tire installed
condition Vehicle running with normal size tire
installed 0-4 mm
Vehicle running with improper size
tire installed (Front/rear tire size dif-
ference, wear condition) 4-8 mm, 8- mm

TF-22
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: The values are changed by throttle opening and engine speed.
CONSULT-II Function (ALL MODE AWD/4WD)NDS000A5
FUNCTION
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAG RESULT MODE
Operation Procedure
1. Perform “CONSULT-II Start Procedure”. Refer to GI-38, "CONSULT-II Start Procedure" .
2. Start engine and drive at 30 km/h (19 MPH) or more for approx. 1 minute.
3. Stop vehicle. With engine at idle, touch “SELF-DIAG RESULTS”. Display shows malfunction experienced since the last erasing
operation.
NOTE:

The details for “TIME” are as follow:
–“0”: Error currently detected with AWD control unit.
–Except for “0”: Error detected in the past and memorized
with AWD control unit.
Detects frequency of driving after DTC occurs (frequency
of turning ignition switch “ON”).
Display Item List
P BRAKE SW
(ON/OFF) Condition of parking brake Parking brake operated ON
Parking brake not operated OFF
Monitored item [Unit] Content Condition Display value
Diagnostic test mode Function
Reference
page
Self-diagnostic results

Self-diagnostic results can be read and erased quickly. TF-22
Data monitor
Input/Output data in the AWD control unit can be read.TF-24
CAN diagnostic support monitor
The results of transmit/receive diagnosis of CAN communication can be read.LAN-44
Active test
Diagnostic Test Mode in which CONSULT-II drives some actuators apart from
the AWD control unit and also shifts some parameters in a specified range. TF-25
ECU part number
AWD control unit part number can be read.
TF-25
SDIA2217E
Items (CONSULT-II screen
terms) Diagnostic item is detected when... Check item
CONTROLLER FAILURE
[C1201] Malfunction has occurred inside AWD control unit.
TF-27, "
AWD Control Unit"
ABS SYSTEM
[C1203] Malfunction related to wheel sensor has been detected by ABS actu-
ator and electric unit (control unit). TF-27, "ABS System"
4WD SOLENOID
[C1204] Malfunction related to AWD solenoid has been detected.
TF-28, "AWD Solenoid"
4WD ACTUATOR RLY
[C1205] Malfunction has been detected from AWD actuator relay integrated
with AWD control unit, or malfunction related to AWD solenoid has
been detected. TF-31, "AWD Actuator
Relay" or
TF-28, "AWD
Solenoid"
ENGINE SIGNAL 1
[C1210] Malfunction has been detected from ECM. TF-32, "Engine Control Sig-
nal"
CAN COMM CIRCUIT
[U1000] When AWD control unit is not transmitting or receiving CAN commu-
nication signal for 2 seconds or more. TF-32, "CAN Communica-
tion Line"
NO DTC IS DETECTED.
FURTHER TESTING MAY BE
REQUIRED. No NG item has been detected. —

TF-24
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II Start Procedure”. Refer to GI-38, "CONSULT-II Start Procedure" .
2. Touch “DATA MONITOR”.
3. Select from “SELECT MONITOR ITEM”, screen of data monitor mode is displayed. NOTE:
When malfunction is detected, CONSULT-II performs REAL-TIME DIAGNOSIS.
Also, any malfunction detected while in this mode will be displayed at real time.
Display Item List
× : Standard –: Not applicable
Monitored item (Unit) Monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR RH SENSOR
(km/h) or (mph) ××× Wheel speed calculated by front wheel sensor RH
signal is displayed.
FR LH SENSOR
(km/h) or (mph) ××× Wheel speed calculated by front wheel sensor LH
signal is displayed.
RR RH SENSOR
(km/h) or (mph) ×××
Wheel speed calculated by rear wheel sensor RH
signal is displayed.
RR LH SENSOR
(km/h) or (mph) ××× Wheel speed calculated by rear wheel sensor LH
signal is displayed.
BATTERY VOLT
(V) ––
×Power supply voltage for AWD control unit
THRTL POS SEN
(%) ––
×Throttle opening status is displayed.
ETS SOLENOID
(A) ––
×Monitored value of current at AWD solenoid
STOP LAMP SW
(ON/OFF) ––
× Stop lamp switch signal status via CAN communica-
tion line is displayed.
ENG SPEED SIG
(RUN/STOP) ––
×Engine status is displayed.
ETS ACTUATOR
(ON/OFF) ––
× Operating condition of AWD actuator relay (inte-
grated in AWD control unit) is displayed.
4WD WARN LAMP
(ON/OFF) ––
×Control status of AWD warning lamp is displayed.
4WD MODE SW
(AUTO) ––
×AWD lock switch is not equipped, but displayed.
4WD MODE MON
(AUTO) ––
×Control status of AWD is displayed.
DIS-TIRE MONI
(mm) ––
×Improper size tire installed condition is displayed.
P BRAKE SW
(ON/OFF) ––
× Parking switch signal status via CAN communica-
tion line is displayed.
Voltage
(V) ––
× The value measured by the voltage probe is dis-
played.

TF-36
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 July 2007 FX35/FX45
3. CHECK SYSTEM FOR AWD SOLENOID
Perform trouble diagnosis for AWD solenoid system. Refer to TF-28, "
AWD Solenoid" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK ELECTRIC CONTROLLED COUPLING
1. Turn ignition switch “OFF”.
2. Set the selector lever to “N” (neutral) position and disengage the parking brake.
3. Lift up the vehicle.
4. Rotate the rear propeller shaft by hand.
5. Hold front propeller shaft lightly.
Does front propeller shaft rotate?
YES >> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to TF-
45, "Disassembly and Assembly" .
NO >> GO TO 5.
5. SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 6.
6. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-21, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> INSPECTION END
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
Vehicle Does Not Enter AWD Mode Even Though AWD Warning Lamp Turned to
OFF
NDS000AG
DIAGNOSTIC PROCEDURE
1. CHECK AWD SOLENOID
Check AWD solenoid. Refer to TF-30, "
COMPONENT INSPECTION" .
OK or NG
OK >> GO TO 2.
NG >> Replace electric controlled coupling for malfunction of AWD solenoid. Refer to TF-45, "
Disassem-
bly and Assembly" .
2. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-21, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 3.
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING WT-7
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Revision: 2006 July 2007 FX35/FX45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000GL
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: Applicable
Reference page
FAX-4
,
FAX-10
, FSU-6
WT-8WT-9WT-41WT-10—
—
WT-41
NVH in PR section
NVH in RFD section
NVH in FAX and FSU section
NVH in RAX and RSU section Refer to TIRES in this chart.
Refer to ROAD WHEEL in this chart.
NVH in FAX, RAX sectionNVH in BR sectionNVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Out-of-round
Unbalance
Incorrect tire pressure
Uneven tire wear
Deformation or damage
Non-uniformity
Incorrect tire size
PROPELLER SHAFT
DIFFERENTIAL
FRONT AXLE AND FRONT SUSPENSION
REAR AXLE AND REAR SUSPENSION
TIRES
ROAD WHEELS
DRIVE SHAFT
BRAKE
STEERING
Symptom TIRES Noise
× ×××××× ×××× ××××
Shake × ××××× ×× ×× ××××
Vibration ×××××××
Shimmy × ××××××× ×× × ××
Judder × ××××× × ×× × ××
Poor quality ride
or handling × ××××× × ×× ×
ROAD WHEEL Noise
× ×× × ××××× ×××
Shake × ×× × × ××× ×××
Shimmy, Judder × ×× × ××× ××
Poor quality ride
or handling × ×× × ×××