brake sensor INFINITI FX35 2004 Service Manual

PG-68
HARNESS
Revision: 2004 November 2004 FX35/FX45
H/AIM LT Headlamp Aiming Control System
H/LAMP LT Headlamp
HORN WW Horn
HSEAT SE Heated Seat
I/KEY BL Intelligent Key System
I/MIRR GW Inside Mirror (Auto Anti-Dazzling Mirror)
IATS EC Intake Air Temperature Sensor
ICC ACS Intelligent Cruise Control System
ICC/BS EC ICC Brake Switch
ICC/SW EC ICC Steering Switch
ICCBOF EC ICC Brake Switch
IGNSYS EC Ignition System
ILL LT Illumination
INF/D AV Vehicle Information and Integrated Switch System
INJECT EC Injector
IVCB1 EC Intake Valve Timing Control Solenoid Valve Bank 1
IVCB2 EC Intake Valve Timing Control Solenoid Valve Bank 2
IVCSB1 EC Intake Valve Timing Control Position Sensor Bank 1
IVCSB2 EC Intake Valve Timing Control Position Sensor Bank 2
IVTB1 EC Intake Valve Timing Control System (Bank 1)
IVTB2 EC Intake Valve Timing Control System (Bank 2)
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
M/ANT AV Manual Antenna
MAFS EC Mass Air Flow Sensor
MAIN EC Main Power Supply And Ground Circuit
MES AV Mobile Entertainment System
METER DI Speedometer, Tachometer, Temp., And Fuel Gauges
MIL/DL EC Mil&Data Link Connectors
MIRROR GW Power Door Mirror
MMSW AT Manual Mode Switch
NATS BL Nissan Anti - Theft System
NAVI AV Navigation System
NONDTC AT Non-Detective Items
O2H1B1 EC Heated Oxygen Sensor 1 Heater Bank 1
O2H1B2 EC Heated Oxygen Sensor 1 Heater Bank 2
O2H2B1 EC Heated Oxygen Sensor 2 Heater Bank 1
O2H2B2 EC Heated Oxygen Sensor 2 Heater Bank 2
O2S1B1 EC Heated Oxygen Sensor 1 Bank 1
O2S1B2 EC Heated Oxygen Sensor 1 Bank 2
O2S2B1 EC Heated Oxygen Sensor 2 Bank 1
O2S2B2 EC Heated Oxygen Sensor 2 Bank 2
P/SCKT WW Power Socket
PGC/V EC Evap Canister Purge Volume Control Solenoid Valve Code Section Wiring Diagram Name

WHEEL HUB
RAX-5
C
E
F
G
H
I
J
K
L
MA
B
RAX
Revision: 2004 November 2004 FX35/FX45
WHEEL HUBPFP:43202
On-Vehicle Inspection and ServiceADS000C4
Make sure the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.
WHEEL BEARING INSPECTION

Move wheel hub in the axial direction by hand. Make sure there is no looseness of wheel bearing.

Rotate wheel hub and make sure there is no unusual noise or other irregular conditions. If there are any
irregular conditions, replace wheel bearings.
Removal and InstallationADS000C5
REMOVAL
1. Remove tire with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
26, "Removal and Installation of Brake Caliper Assembly" .
NOTE:

Avoid depressing brake pedal while brake caliper is removed.
3. Remove disc rotor.
4. Remove wheel sensor from axle. Refer to BRC-57, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
5. Remove cotter pin. Then remove lock nut from drive shaft.
6. Separate drive shaft from wheel hub and bearing assembly by lightly tapping the end with a suitable ham-
mer and wood block. If it is hard to separate, use a suitable puller.
7. Remove fixing bolts of wheel hub and bearing assembly with power tool, then remove wheel hub and
bearing assembly from axle.
8. Remove parking brake cable and parking brake shoe from back plate. Refer to PB-5, "
PARKING BRAKE
SHOE" and PB-3, "PARKING BRAKE CONTROL" .
9. Remove fixing nuts of anchor block with power tool, then remove anchor block and back plate from axle.Axial end play : 0 mm (0 in)
1. Drive shaft 2. Bushing 3. Axle
4. Back plate 5. Anchor block 6. Wheel bearing
7. Wheel hub 8. Cotter pin
SDIA1481E

RSU-8
REAR SUSPENSION ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
Removal and InstallationAES000MM
REMOVAL
1. Remove tire with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
25, "REAR DISC BRAKE" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, then remove wheel sensor harness from rear suspension
member.
4. Remove center muffler and main muffler. Refer to EX-3, "
Removal and Installation" .
5. Remove stabilizer bar. Refer toRSU-16, "
Removal and Installation" .
6. Remove rear propeller shaft. Refer to PR-7, "
Removal and Installation" .
7. Separate attachments between parking brake cable and vehicle and rear suspension member.
8. Remove rear lower link and coil spring. Refer to RSU-15, "
Removal and Installation" .
9. Remove fixing bolt in lower side of shock absorber with power tool.
10. Set jack under rear final drive.
11. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts
from vehicle.
12. Remove fixing bolts and nuts of rear pin stay with power tool and then remove rear pin stay from vehicle.
13. Gradually lowering jack, remove rear suspension assembly.
INSTALLATION

Refer to RSU-7, "Components" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Perform final tightening of installation position of links (rubber bushing) under unladen conditions with tires
on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .
1. Bushing 2. Mounting seal 3. Mounting seal bracket
4. Distance tube 5. Bound bumper cover 6. Bound bumper
7. Shock absorber 8. Upper seat 9. Coil spring
10. Rubber seat 11. Rear lower link 12. Axle
13. Cotter pin 14. Radius rod 15. Front lower link protector
16. Front lower link 17. Stopper 18. Shock absorber assembly
19. Suspension arm 20. Stabilizer connecting rod mounting
bracket21. Stabilizer connecting rod
22. Rear pin stay 23. Rear suspension member 24. Stabilizer bar
25. Stabilizer bushing 26. Stabilizer clamp 27. Member stay
28. Tunnel stay

REAR SUSPENSION MEMBER
RSU-17
C
D
F
G
H
I
J
K
L
MA
B
RSU
Revision: 2004 November 2004 FX35/FX45
REAR SUSPENSION MEMBERPFP:55501
Removal and InstallationAES000MU
REMOVAL
1. Remove tire with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer toBR-
25, "REAR DISC BRAKE" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, then remove wheel sensor harness from rear suspension
member. Refer to BRC-57, "
WHEEL SENSORS" .
4. Remove center muffler and main muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
5. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation" .
6. Remove rear drive shaft. Refer to RAX-9, "
REAR DRIVE SHAFT" .
7. Remove rear final drive. Refer to RFD-11, "
REAR FINAL DRIVE ASSEMBLY" .
8. Separate attachments between parking brake cable and vehicle and rear suspension member. Refer to
PB-3, "
PARKING BRAKE CONTROL" .
9. Remove rear lower link and coil spring. Refer to RSU-15, "
Removal and Installation" .
10. Remove fixing bolt in lower side of shock absorber with power tool.
11. Set jack under rear suspension member.
12. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts
from vehicle.
13. Remove fixing bolts and nuts of rear pin stay with power tool and then remove rear pin stay from vehicle.
14. Slowly lowering jack, then remove rear suspension member, suspension arm, radius rod, front lower link
and axle from vehicle as a unit.
15. Remove fixing bolts and nuts with power tool, then remove suspension arm, front lower link, and radius
rod from rear suspension member.
INSPECTION AFTER REMOVAL
Check rear suspension member for deformation, cracks, and other damage and replace if necessary.
INSTALLATION

Refer to RSU-7, "Components" , for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Perform final tightening of installation position of links (rubber bushing) under unladen conditions with tires
on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

TF-12
AWD SYSTEM
Revision: 2004 November 2004 FX35/FX45
COMPONENTS FUNCTION DESCRIPTION
CAN CommunicationADS000RY
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-6, "
CAN Communication Unit" .
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)
ECMTransmits 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.

TF-20
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
*: The values are changed by throttle opening and engine speed.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 unitIgnition switch: ON Battery voltage
THRTL POS SEN [%] Throttle opening conditionWhen depressing accelerator pedal
(Value rises gradually in response to
throttle position.)0 - 100%
ETS SOLENOID [A]Monitored value of current at
AWD solenoidEngine running

At idle speedApprox. 0.000A
Engine running

When depressing accelerator
pedalApprox. 0.000 - 2.400A*
STOP LAMP SW [ON/OFF]Condition of brake pedal
operationBrake pedal: Depressed ON
Brake pedal: Released OFF
ENG SPEED SIG [RUN/STOP] Condition of engine runningEngine 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 conditionAWD 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
conditionVehicle running with normal size tire
installed0-4 mm
Vehicle running with improper size
tire installed (Front/rear tire size dif-
ference, wear condition)4-8 mm, 8- mm
P BRAKE SW [ON/OFF] Condition of parking brakeParking brake operated ON
Parking brake not operated OFF Monitored item [Unit] Content Condition Display value

TROUBLE DIAGNOSIS
TF-23
C
E
F
G
H
I
J
K
L
MA
B
TF
Revision: 2004 November 2004 FX35/FX45
DATA MONITOR MODE
Operation Procedure
1. Perform “CONSULT-II SETTING PROCEDURE”. Refer to TF-21, "CONSULT-II SETTING 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
SIGNALSMAIN
SIGNALSSELECTION
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 sole-
noid
STOP LAMP SW [ON/OFF] – –×Stop lamp switch signal status via CAN
communication line is displayed.
ENG SPEED SIG [RUN/STOP] – –×Engine status is displayed.
ETS ACTUATOR [ON/OFF] – –×Operating condition of AWD actuator relay
(integrated in AWD control unit) is dis-
played.
4WD WARN LAMP [ON/OFF] – –×Control status of AWD warning lamp is dis-
played.
4WD MODE SW [AUTO] – –×AWD lock switch is not equipped, but dis-
played.
4WD MODE MON [AUTO] – –×Control status of AWD is displayed.
DIS-TIRE MONI [mm] – –×Improper size tire installed condition is dis-
played.
P BRAKE SW [ON/OFF] – –×Parking switch signal status via CAN com-
munication line is displayed.
Voltage [V] – –×The value measured by the voltage probe
is displayed.
Frequency [Hz] – –×
The value measured by the pulse probe is
displayed. DUTY-HI (high) [%] – –×
DUTY-LOW (low) [%] – –×
PLS WIDTH-HI [msec] – –×
PLS WIDTH-LOW [msec] – –×