2005 INFINITI FX35 Service Manual

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Page 1161 of 4731

INFINITI FX35 2005 Service Manual BRC-20
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
TFWM0059E

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INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-21
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
TFWM0060E

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INFINITI FX35 2005 Service Manual BRC-22
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
TFWM0151E

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INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-23
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
Control Unit Input/Output Signal StandardAFS001SP
REFERENCE VALUE FROM CONSULT-II
CAUTION:

TROUBLE DIAGNOSIS BRC-23
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Control Unit Input/Output Signal StandardAFS001SP
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The display shows ABS actuator and electric unit (control unit) calculation data, so a normal value
might be displayed even in the event the output circuit (harness) is open or short-circuited.
Monitor item Display content Data monitor
Check item
Condition Reference value in
normal operation
SLCT LVR POSI A/T shift position P: P position
R: R position
N: N position
D: D position
—
GEAR A/T gear position 1: 1st gear
2: 2nd gear
3: 3rd gear
4: 4th gear
5: 5th gear
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speed Vehicle stopped 0 [km/h (MPH)]
BRC-37, "
Inspection 1:
Wheel Sensor Circuit"Vehicle running (Note 1) Almost in accor-
dance with speed-
ometer display
(within ±10 %)
ACCEL POS SIG Open/close condition
of throttle valve (linked
with accelerator pedal). Accelerator pedal not
depressed (ignition switch is
ON) 0 %
Communication circuit
between VDC/TCS/ABS
control unit and ECM
Depress accelerator pedal
(ignition switch is ON) 0 to 100 %
ENGINE SPEED With engine running With engine stopped 0 rpm
EC section
Engine running Almost in accor-
dance with
tachometer display
STR ANGLE SIG Steering angle
detected by steering
angle sensor Straight-ahead Approx. 0 deg
BRC-42, "
Inspection 5:
Steering Angle Sensor
Circuit"Steering wheel turned –756 to 756 deg
YAW RATE SEN Yaw rate detected by
yaw rate sensor Vehicle stopped Approx. 0 d/s
BRC-44, "
Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) Circuit"
Vehicle running –100 to 100 d/s
SIDE G-SENSOR Transverse G detected
by side G sensor Vehicle stopped
Approx. 0 m/s
2BRC-44, "Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) Circuit"
Vehicle running–16.7 to 16.7 m/s2
PRESS SENSOR Brake fluid pressure
detected by pressure
sensor With ignition switch turned ON
and brake pedal released Approx. 0 bar
BRC-40, "Inspection 4:
Pressure Sensor Circuit"With ignition switch turned ON
and brake pedal depressed 0 to 170 bar
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit) Ignition switch ON 10 to 16 V BRC-48, "
Inspection 9:
ABS Actuator and Elec-
tric Unit (Control Unit)
Power Supply and
Ground Circuit"
STOP LAMP SW Brake pedal operation
Brake pedal depressed ON
BRC-50, "
Inspection 10:
Stop Lamp Switch Cir-
cuit"Brake pedal not depressed OFF

Page 1165 of 4731

INFINITI FX35 2005 Service Manual BRC-24
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
OFF SW VDC OFF switch
ON/OFF status VDC OFF switch ON
(When VDC OFF indicator
lamp is ON) ON
BRC-53, "VDC OFF
SWITCH"VDC OFF

BRC-24
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
OFF SW VDC OFF switch
ON/OFF status VDC OFF switch ON
(When VDC OFF indicator
lamp is ON) ON
BRC-53, "VDC OFF
SWITCH"VDC OFF switch OFF
(When VDC OFF indicator
lamp is OFF) OFF
ABS WARN LAMP ABS warning lamp ON
condition (Note 2) ABS warning lamp ON ON
BRC-37, "
BASIC
INSPECTION 3: ABS
WARNING LAMP, VDC
OFF INDICATOR LAMP,
SLIP INDICATOR LAMP
and BRAKE WARNING
LAMP INSPECTION"
ABS warning lamp OFF OFF
MOTOR RELAY Operation status of
motor and motor relay Ignition switch ON or engine
running (ABS not operated) OFF
BRC-47, "
Inspection 8:
Actuator Motor Circuit"Ignition switch ON or engine
running (ABS operated) ON
ACTUATOR RLY Actuator relay opera-
tion status Actuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-II) ON
BRC-47, "
Inspection 8:
Actuator Motor Circuit"When actuator relay is inactive
(in fail-safe mode) OFF
OFF LAMP VDC OFF indicator
lamp status (Note 3) When VDC OFF indicator
lamp is ON ON
BRC-37, "
BASIC
INSPECTION 3: ABS
WARNING LAMP, VDC
OFF INDICATOR LAMP,
SLIP INDICATOR LAMP
and BRAKE WARNING
LAMP INSPECTION"
When VDC OFF indicator
lamp is OFF OFF
SLIP LAMP SLIP indicator lamp
status (Note 4) When SLIP indicator lamp is
ON ON
When SLIP indicator lamp is
OFF OFF
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve opera-
tion Actuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-II) and actuator relay is
active (ignition switch ON) ON
BRC-46, "
Inspection 7:
Solenoid and VDC
Change-Over Valve Cir-
cuit"
When actuator (solenoid) is
not active or actuator relay is
inactive (in fail-safe mode) OFF
CV1
CV2
SV1
SV2 VDC/TCS switch-over
valve status When actuator (switch-over
valve) is active (“ACTIVE
TEST” with CONSULT-II) and
actuator relay is active (ignition
switch ON) ON
When actuator (switch-over
valve) is not active or actuator
relay is inactive (in fail-safe
mode) OFF
DECEL G-SEN Longitudinal accelera-
tion detected by Decel
G sensor [Note 5] Vehicle stopped approx. 0 G
BRC-44, "
Inspection 6:
Yaw Rate/Side G Sensor
(2WD Model), Yaw Rate/
Side/Decel G sensor
(AWD Models) Circuit"
Vehicle running -1.7 to +1.7 G
Monitor item Display content
Data monitor
Check item
Condition Reference value in
normal operation

Page 1166 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-25
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Revision: 2005 July 2005 FX
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: Appr

TROUBLE DIAGNOSIS BRC-25
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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: SLIP indicator lamp ON/OFF timing
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.
Blinking: VDC/TCS function is active during driving
Note 5: Only AWD model.
Note 6: Serves as EBD warning lamp.
CONSULT-II FunctionsAFS001SQ
CONSULT-II MAIN FUNCTION
In a diagnosis function (main function), there are “WORK SUPPORT”, “SELF-DIAGNOSTIC RESULTS”,
“DATA MONITOR”, “CAN DIAG SUPPORT MNTR”, “ACTIVE TEST”, “FUNCTION TEST”, “ECU PART NUM-
BER”.
FLUID LEV SW ON/OFF status of
brake fluid level switch When brake fluid level switch
ON ON
BRC-51, "
Inspection 11:
Brake Fluid Level Switch
Circuit"When brake fluid level switch
OFF OFF
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIG Fail signal status VDC fail
TCS fail
ABS fail
EBD fail ON
VDC system
TCS system
ABS system
EBD system
VDC normal
TCS normal
ABS normal
EBD normal OFF
EBD WARN LAMP Brake warning lamp on
condition (Note 6) Brake warning lamp ON ON
BRC-37, "
BASIC
INSPECTION 3: ABS
WARNING LAMP, VDC
OFF INDICATOR LAMP,
SLIP INDICATOR LAMP
and BRAKE WARNING
LAMP INSPECTION"
Brake warning lamp OFF OFF
EBD SIGNAL EBD operation EBD active ON
—
EBD not active OFF
ABS SIGNAL ABS operation ABS active ON
ABS not active OFF
TCS SIGNAL TCS operation TCS active ON
TCS not active OFF
VDC SIGNAL VDC operation VDC active ON
VDC not active OFF
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 AWD
Monitor item Display content
Data monitor
Check item
Condition Reference value in
normal operation

Page 1167 of 4731

INFINITI FX35 2005 Service Manual BRC-26
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
CONSULT-II BASIC OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connec

Page 1168 of 4731

INFINITI FX35 2005 Service Manual TROUBLE DIAGNOSIS BRC-27
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Revision: 2005 July 2005 FX
6. Select the required diagnostic location from the “SELECT DIAG
MODE” screen.
For furt

TROUBLE DIAGNOSIS BRC-27
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Revision: 2005 July 2005 FX
6. Select the required diagnostic location from the “SELECT DIAG
MODE” screen.
For further information, see CONSULT-II Operation Manual.
SELF-DIAGNOSIS
Description
If an error is detected in the system, ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp
on the combination meter turn on. In this case, perform self-diagnosis as follows:
While CONSULT-II is used, ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp may be
turned on in a case of no malfunctioning.
Operation Procedure
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector. CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which perform CAN communication.
3. Turn ignition switch ON.
4. Start engine and drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF- DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on the
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case, repeat
the operation from step 1. If it can not be shown after several attempts, ABS actuator and electric
unit (control unit) may have malfunctioned.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by touching “PRINT”.)
When “NO FAILURE” is displayed, check ABS warning lamp, VDC OFF indicator lamp and SLIP indica-
tor lamp.
7. Perform the appropriate inspection from the display item list, and repair or replace the malfunctioning component.
8. Drive the vehicle at approximately 30 km/h (19 MPH) or more for approximately 1 minute. CAUTION:
In a case that a wheel sensor is malfunctioning, ABS warning lamp, VDC OFF indicator lamp,
SLIP indicator lamp will turn on. If vehicle is not driven at approximately 30 km/h (19 MPH) or
more for at least approximately 1 minute after repair of the wheel sensor system, ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp may not turn off even if everything is
normal. Check again to make sure that there is no malfunction on other parts.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE MEMORY” in order on the CONSULT-II screen to erase the error memory.
If “ABS” is not indicated, go to GI-39, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the error memory is not erased, re-perform the operation from step 5.
11. For final inspection, drive at approximately 30 km/h (19 MPH) or more for approximately 1 minute and confirm that ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp are OFF.
SFIA2436E

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