ECO mode INFINITI FX35 2007 Service Manual

BR-24
FRONT DISC BRAKE
Revision: 2006 July 2007 FX35/FX45
DISC ROTOR INSPECTION
Visual Inspection
Check surface of disc rotor for uneven wear, cracks, and serious damage. If any of them is detected, replace
applicable part.
Runout Inspection
1. Using wheel nuts, fix disc rotor to wheels hub. (2 or more positions)
2. Using a dial indicator, check runout.
CAUTION:
Before measuring, make sure that wheel bearing axle end
play is within the specification. Refer to FA X - 4 , "
WHEEL
BEARING INSPECTION" (2WD models), FA X - 1 0 , "WHEEL
BEARING INSPECTION" (AWD models).
3. If runout is outside the limit, find the minimum runout point by shifting the mounting positions of disc rotor and wheel hub by
one hole.
4. If runout is still out of specification, turn rotor with on-car brake lathe (“MAD, DL-8700”, “AMMCO 700 and 705” or equivalent).
Thickness Inspection
Using a micrometer, check thickness of disc rotor. If thickness is out-
side the specification, replace disc rotor.
Brake Burnishing ProcedureNFS000OD
Burnish brake pad contact surfaces of disc rotor according to following procedure after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal occurs at very low mileage.
CAUTION:

Be careful of vehicle speed because brake does not operate easily until pad and disc rotor are
securely fitted.

Only perform this procedure under safe road and traffic conditions. Use extreme caution.
1. Drive vehicle on straight, flat road.
2. Depress brake pedal with the power to stop vehicle within 3 to 5 seconds until the vehicle stops.
3. Drive without depressing brake for a few minutes to cool brake.
4. Repeat steps 1 to 3 until pad and disc rotor are securely fitted. Measurement point
: At a point 10.0 mm (0.394 in)
from outer edge of disc.
Runout limit : 0.04 mm (0.0016 in) or less
SBR019B
Standard thickness : 34.0 mm (1.339 in)
Wear limit : 32.0 mm (1.260 in)
Maximum uneven wear
(measured at 8 positions) : 0.015 mm (0.0006 in)
or less
SBR020B

SERVICE DATA AND SPECIFICATIONS (SDS) BR-31
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Revision: 2006 July 2007 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsNFS000MJ
Unit: mm (in)
Brake PedalNFS000MK
Brake BoosterNFS000ML
Va c u u m t y p e
Check ValveNFS000MM
Front Disc BrakeNFS000MN
Rear Disc BrakeNFS000MO
Front brake Rotor outer diameter
× thickness 320 × 34 (12.598 × 1.339)
Pad length × width × thickness 130.0 × 50.0 × 11.0 (5.118 × 1.969 × 0.433)
Cylinder bore diameter 45.0 (1.772) × 2
Rear brake Rotor outer diameter
× thickness 308 × 16 (12.13 × 0.63)
Pad length × width × thickness 83.0 × 33.0 × 8.5 (3.268 × 1.299 × 0.335)
Cylinder bore diameter 42.86 (1.6874)
Master cylinder Cylinder bore diameter 25.4 (1.00)
Control valve Valve model Electric brake force distribution
Brake booster Diaphragm diameter Primary 228.5 (9.0)
Secondary 203.0 (8.0)
Recommended brake fluid DOT 3
Brake pedal height (from dash lower panel top surface) 161.5 − 171.5 mm (6.358 − 6.752 in)
Depressed pedal height
[under a force of 490 N (50 kg, 110 lb) with engine running] More than 95 mm (3.74 in)
Clearance between stopper rubber and the threaded end of stop lamp
switch and ASCD cancel switch (or brake switch) 0.74
− 1.96 mm (0.0291 − 0.0772 in)
Pedal play 3 − 11 mm (0.12 − 0.43 in)
Output rod length 15.6 − 15.9 mm (0.614 − 0.626 in)
Input rod length 126.5 mm (4.98 in)
Vacuum leakage
[at a vacuum of –66.7 kPa (–500 mmHg, –19.69 inHg)] Within vacuum of 1.3 kPa (10 mmHg, 0.39 inHg) for 15
seconds
Brake pad Standard thickness 11.0 mm (0.433 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotor Standard thickness 34.0 mm (1.339 in)
Wear limit 32.0 mm (1.260 in)
Maximum uneven wear (measured at 8 positions) 0.015mm (0.0006 in) or less
Runout limit (with the disc rotor attached to the vehicle) 0.04 mm (0.0016 in) or less
Brake pad Standard thickness 8.5 mm (0.335 in)
Repair limit thickness 2.0 mm (0.079 in)
Disc rotor Standard thickness 16.0 mm (0.630 in)
Wear limit 14.0 mm (0.551 in)
Maximum uneven wear (measured at 8 positions) 0.015 mm (0.0006 in) or less
Runout limit (with the disc rotor attached to the vehicle) 0.05 mm (0.0020 in) or less

ON-VEHICLE SERVICE BRC-7
[VDC/TCS/ABS]
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Revision: 2006 July 2007 FX35/FX45
Calibration of Decel G Sensor (AWD Models)NFS000N2
NOTE:
After removing/installing or replacing yaw rate/side/decel G sensor, ABS actuator and electric unit (control
unit), suspension components, or after adjusting wheel alignment, make sure to calibration of decel G sensor
before running vehicle.
CAUTION:
To calibrate decel G sensor, make sure to use CONSULT-II. (Adjustment can not be done without CON-
SULT-II.)
1. Stop vehicle with front wheels in straight-ahead position. CAUTION:

The work should be done at a horizontal place when vehicle is in the unloaded vehicle condi-
tion.

Keep all tires inflated to correct pressures. Adjust the tire pressure to the specified pressure
value.
2. Perform “CONSULT-II Start Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
3. Touch “ABS”, “WORK SUPPORT” and “DECEL G-SEN CALIBRATION” on CONSULT-II screen in this order.
4. Touch “START”. CAUTION:
Set vehicle as shown in the display.
5. After approximately 10 seconds, touch “END”. (After approxi- mately 60 seconds, it ends automatically.)
6. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then stop.
8. Select “DATA MONITOR”, “SELECTION FROM MENU”, and “DECEL G-SEN” on CONSULT-II screen. Then make sure “DECEL G-SEN” is within 0 ± 0.08 G. If value is
more than specification, repeat steps 3 to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch OFF.
SFIA1162E

BRC-24
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: Approx. Within 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approx. 2 seconds after ignition switch is turned ON (when system is in normal operation) and VDC/TCS function is not activa ted.
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: Approx. Within 2 seconds after ignition switch is turned ON, or when a malfunction is detected and VDC OFF switch is ON.
OFF: Approx. 2 seconds after ignition switch is turned ON (when system is in normal operation.) And when VDC OFF switch is OFF.
Note 4: ON/OFF timing of SLIP indicator lamp
ON: Approx. Within 2 seconds after ignition switch is turned ON, or when a malfunction is detected and VDC/TCS function is activa ted
while driving.
OFF: Approx. 2 seconds after ignition switch is turned ON (when system is in normal operation) and VDC/TCS function is not activa ted.
Flashing: VDC/TCS function is active during driving
Note 5: Only AWD models.
Note 6: Serves as EBD warning lamp.
CONSULT-II Functions (ABS)NFS000NG
CONSULT-II MAIN 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" .
CRANKING SIG CRANKING status Cranking ON
Not cranking OFF
4WD FAIL REQ ETS fail status (Note 5) ETS fail ON
ETS normal OFF
2WD/4WD Drive axle 2WD model 2WD
AW D mod el AW D
Monitor item Display content
Data monitor
Condition Reference value in
normal operation
Diagnostic test mode Function Reference
WORK SUP-
PORT This mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-II. BRC-6, "
ON-VEHICLE SER-
VICE"
SELF-DIAG
RESULTS Self-diagnostic results can be read and erased quickly.
BRC-25, "Self-Diagnosis"
DATA MONI-
TOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.
BRC-29, "Data Monitor"
CAN DIAG
SUPPORT
MNTR The results of transmit/receive diagnosis of communication can be read.
LAN-44, "CAN Diagnostic
Support Monitor"
ACTIVE TEST Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the
ABS actuator and electric unit (control unit) and also shifts some parameters in a
specified range. BRC-31, "Active Test"
FUNCTION
TEST Performed by CONSULT-II instead of a technician to determine whether each sys-
tem is “OK” or “NG”. —
ECU PART
NUMBER ABS actuator and electric unit (control unit) part number can be read. —

TROUBLE DIAGNOSIS BRC-27
[VDC/TCS/ABS]
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Revision: 2006 July 2007 FX35/FX45
FR LH IN ABS SOL
[C1120] Circuit of front LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
BRC-44, "
Solenoid and VDC
Change-Over Valve Circuit"
FR LH OUT ABS SOL
[C1121] Circuit of front LH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122] Circuit of front RH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123] Circuit of front RH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124] Circuit of rear LH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126] Circuit of rear RH IN ABS solenoid is open or shorted, or control line is
open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127] Circuit of rear RH OUT ABS solenoid is open or shorted, or control line
is open or shorted to power supply or ground.
CV1
[C1164] Primary side VDC switch-over solenoid valve 1 (cut valve 1) is open or
shorted, or control line is open or shorted to power supply or ground.
CV2
[C1165] Secondary side VDC switch-over solenoid valve 2 (cut valve 2) is open
or shorted, or control line is open or shorted to power supply or ground.
SV1
[C1166] Primary side VDC switch-over solenoid valve 1 (suction valve 1) is
open or shorted, or control line is open or shorted to power supply or
ground.
SV2
[C1167] Secondary side VDC switch-over solenoid valve 2 (suction valve 2) is
open or shorted, or control line is open or shorted to power supply or
ground.
ACTUATOR RLY
[C1140] (Note 3)

Actuator solenoid valve relay is ON, even if control unit sends off sig-
nal.

Actuator solenoid valve relay is OFF, even if control unit sends on
signal. BRC-45, "
Actuator Motor Cir-
cuit"
PRESS SEN CIRCUIT
[C1142] Pressure sensor signal line is open or shorted, or sensor power volt-
age is unusual, or pressure sensor is malfunctioning. BRC-39, "Pressure Sensor Cir-
cuit"
ST ANG SEN CIRCUIT
[C1143] Neutral position of steering angle sensor is dislocated, or steering
angle sensor is malfunctioning. BRC-41, "Steering Angle Sen-
sor Circuit"
ST ANG SEN SIGNAL
[C1144] Neutral position correction of steering angle sensor is not finished. BRC-6, "Adjustment of Steer-
ing Angle Sensor Neutral Posi-
tion"
YAW RATE SENSOR
[C1145] Yaw rate sensor has generated an error, or yaw rate sensor signal line
is open or shorted. BRC-42, "
Yaw Rate/Side G
Sensor (2WD Models), Yaw
Rate/Side/Decel G Sensor
(AWD Models) Circuit"
SIDE G-SEN CIRCUIT
[C1146] Side G sensor is malfunctioning, or signal line of side G sensor is open
or shorted. BRC-42, "
Yaw Rate/Side G
Sensor (2WD Models), Yaw
Rate/Side/Decel G Sensor
(AWD Models) Circuit"
BR FLUID LEVEL LOW
[C1155] Brake fluid level drops or circuit between ABS actuator and electric unit
(control unit) and brake fluid level switch is open or shorted. BRC-50, "Brake Fluid Level
Switch Circuit"
ST ANG SEN COM CIR
[C1156] CAN communication line or steering angle sensor has generated an
error. BRC-41, "
Steering Angle Sen-
sor Circuit"
BRC-52, "CAN Communication
Circuit"
Self-diagnostic item Malfunction detecting condition Check system

BRC-28
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Note 1: After completing repairs of shorted sensor circuit, when turning ignition switch ON, ABS warning lamp turned on. Make t hat ABS
warning lamp turned off while driving vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute according to self-
diagnosis procedure. In addition, if wheel sensor 2 is displayed for wheels, check wheel sensor circuit and also check ABS actu ator and
electric unit (control unit) power voltage.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
Note 3: “ACTUATOR RLY” on the CONSULT-II self-diagnostic results indicates the malfunction of actuator relay or circuit. Actuat or relay
is imbedded in ABS actuator and electric unit (control unit).
Note 4:Only AWD models. DECEL G SEN SET
[C1160] (Note 4) Neutral position correction of decel G sensor is not finished. BRC-51, "
When “DECEL G
SEN SET” Appears on Self-
diagnostic Results Display
(AWD Models)"
BRC-7, "Calibration of Decel G
Sensor (AWD Models)"
VARIANT CODING
[C1170] V coding is not functioning. ABS actuator and electric unit
(control unit) and circuit
ENGINE SIGNAL 1
[C1130] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine fuel cut system is malfunctioning.
BRC-38, "
Engine System"
ENGINE SIGNAL 2
[C1131] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine ETC system is malfunctioning.
ENGINE SIGNAL 3
[C1132] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine CAN system is malfunctioning.
ENGINE SIGNAL 4
[C1133] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine torque down system is malfunctioning.
ENGINE SIGNAL 6
[C1136] Based on the signal from ECM, ABS actuator and electric unit (control
unit) judges that engine control system is malfunctioning.
CAN COMM CIRCUIT
[U1000] When a ABS actuator and electric unit (control unit) is not transmitting
or receiving CAN communication signal for 2 seconds or more. BRC-52, "
CAN Communication
Circuit" (Note 2)
Self-diagnostic item Malfunction detecting condition Check system

TROUBLE DIAGNOSIS FOR SYSTEM BRC-43
[VDC/TCS/ABS]
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Revision: 2006 July 2007 FX35/FX45
2. CHECK CONNECTOR
1. Disconnect G sensor connector and ABS actuator and electric unit (control unit) connector and check ter- minals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace
terminal.
2. Reconnect connectors and perform a ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK G SENSOR HARNESS
1. Turn ignition switch OFF and disconnect G sensor connector M79 (2WD models) or M71 (AWD models) and ABS actuator
and electric unit (control unit) connector E56.
2. Check continuity between ABS actuator and electric unit (control unit) harness connector and G sensor harness connector.
OK or NG
OK >> GO TO 4.
NG >> If the open or short in harness, repair or replace harness.
4. CHECK G SENSOR
1. Connect G sensor connector and ABS actuator and electric unit (control unit) connector.
2. Use CONSULT-II “DATA MONITOR” to check if G sensor are normal.
OK or NG
OK >> Perform ABS actuator and electric unit (control unit) self-diagnosis again.
NG >> Replace malfunctioning G sensor, and then perform self-diagnosis for ABS actuator and electric unit (control unit) again.
ABS actuator and electric unit (control unit) G sensor Continuity
63
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24 5
25 1
29 2
SFIA1192E
Vehicle status Yaw rate sensor
(Data monitor standard) Side G sensor
(Data monitor standard) Decel G sensor (AWD models)
(Data monitor standard)
When stopped − 4 to + 4 deg/s
− 1.1 to + 1.1 m/s
2− 0.11 to + 0.11G
Right turn Negative value Negative value —
Left turn Positive value Positive value —
Speed up — — Negative value
Speed down — — Positive value

COMBINATION METERS DI-7
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Revision: 2006 July 2007 FX35/FX45
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.

Unified meter and A/C amp. reads a resistor signal from fuel level sensor.
Signal is supplied
–from unified meter and A/C amp. terminal 36
–through the fuel level sensor unit and fuel pump (main) terminals 5 and 2, and
–through the fuel level sensor unit (sub) terminals 2 and 1
–to unified meter and A/C amp. terminal 28 for the fuel gauge.

Unified meter and A/C amp. provides a fuel level signal to combination meter with communication line.

Combination meter indicates the approximate fuel level according to the fuel level signal.
ODO/TRIP METER

ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C
amp. with CAN communication.

Unified meter and A/C amp. converts the vehicle speed signal to the 8-pulse signal, and outputs the vehi-
cle speed signal (8-pulse) to combination meter.

Combination meter uses the vehicle speed signal (8-pulse) to calculate the mileage, and displays it.
How to Change The Display For Odo/trip Meter
Switch modes with following procedure.

When trip transfer switch is pressed, trip meter display changes.

If trip reset switch is pressed for 1 second or more while “trip A”
is displayed, only “trip A” is reset.
NOTE:
The record of the odo meter is kept even if the battery cable is dis-
connected. The record of the trip meter is erased when the battery
cable is disconnected.
SKIB8760E
SKIA4817E

DI-16
COMBINATION METERS
Revision: 2006 July 2007 FX35/FX45
3. Turn ignition switch ON while pressing trip transfer switch and
trip reset switch at the same time.
4. After ignition switch is turned ON, release trip transfer switch and trip reset switch (within 7 seconds after the ignition switch is
turned ON).
5. All the segments on the odo/trip meter, shift position indicator and ICC system display illuminates, and simultaneously the low-fuel warning lamp indicator illuminates. At this time, the unified meter control unit
is turned to self-diagnosis mode.
NOTE:

Check odo/trip meter switch and combination meter power supply and ground circuit when self-diagno-
sis mode of combination meter does not start. Replace combination meter if the results of the check are
normal.

If any of the segments are not displayed, replace combination meter.
6. Each meter/gauge activates during pressing trip reset switch. (Then low-fuel warning lamp turns OFF.)
NOTE:

If any of the meters/gauges are not activated, replace the
combination meter.

The figure is reference.
CONSULT-II Function (METER A/C AMP)NKS002ZK
Refer to DI-31, "CONSULT-II Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
Trouble DiagnosisNKS002ZL
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform preliminary check. Refer to DI-17, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom. Refer to DI-17, "
Symptom
Chart" .
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
SKIA4817E
SKIA6170E
SKIA4831E

UNIFIED METER AND A/C AMP DI-31
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Revision: 2006 July 2007 FX35/FX45
CONSULT-II Function (METER A/C AMP)NKS00304
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
Refer to GI-38, "CONSULT-II Start Procedure" .
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Self-diagnosis results are displayed.
Display Item List
NOTE:
“TIME” means the following.

0: Means detected malfunction at present. (From malfunction detection to turning ignition switch OFF)

1 - 63: Means detected malfunction in the past. (Displays the number of ignition switch OFF → ON after
detecting malfunction. “SELF-DIAG RESULTS” is erased when exceeding “63”.)
System Diagnosis mode Description Reference
page
METER A/C AMP SELF-DIAG RESULTS
Unified meter and A/C amp. checks the conditions and dis-
plays memorized error. DI-31
CAN DIAG SUPPORT MNTR The results of transmit/receive diagnosis of CAN communi-
cation can be read. LAN-44
DATA MONITOR
Displays unified meter and A/C amp. input data in real
time. DI-32
SKIA4956E
Display item [Code] Malfunction is detected when...
Reference
page
CAN COMM CIRC [U1000] When a unified meter and A/C amp. is not transmitting or receiving CAN communica-
tion signal for 2 seconds or more. DI-34
METER COMM CIRC [B2202] Malfunction is detected in communication of between combination meter and unified
meter and A/C amp. DI-34
VEHICLE SPEED CIRC [B2205] When an erroneous speed signal is input for 1 second.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about
2 seconds). DI-37