2004 INFINITI FX35 brake fluid

TROUBLE DIAGNOSIS
BRC-25
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2004 November 2004 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 activated.
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 activated
while driving.
OFF: Approx. 2 seconds after ignition switch is turned ON (when system is in normal operation) and VDC/TCS function is not activated.
Blinking: VDC/TCS function is active during driving
Note 5: Only AWD model.
Note 6: Serves as EBD warning lamp.
CONSULT-II FunctionsAFS002Q8
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 SWON/OFF status of
brake fluid level switchWhen brake fluid level switch
ONON
BRC-51, "
Inspection 11:
Brake Fluid Level Switch
System"When brake fluid level switch
OFF OFF
VDC FAIL SIG
TCS FAIL SIG
ABS FAIL SIG
EBD FAIL SIGFail signal statusVDC fail
TCS fail
ABS fail
EBD failON
VDC system
TCS system
ABS system
EBD system VDC normal
TCS normal
ABS normal
EBD normalOFF
EBD WARN LAMPBrake warning lamp on
condition (Note 6)Brake warning lamp ON ONBRC-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 operationEBD active ON
— EBD not active OFF
ABS SIGNAL ABS operationABS active ON
ABS not active OFF
TCS SIGNAL TCS operationTCS active ON
TCS not active OFF
VDC SIGNAL VDC operationVDC active ON
VDC not active OFF
CRANKING SIG CRANKING statusCranking ON
Not cranking OFF
4WD FAIL REQ ETS fail status (Note 5)ETS fail ON
ETS normal OFF
2WD/4WD Drive axle2WD model 2WD
AW D mod el AWD Monitor item Display contentData monitor
Note: Error inspection
checklist
ConditionReference value in
normal operation

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Note 1: After completing repairs of shorted sensor circuit, when turn ignition switch ON, ABS warning lamp
turned on. Check that 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 dis-
played for wheels, check wheel sensor circuit and also check ABS actuator 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. Actuator relay is imbedded in ABS actuator and electric unit (control unit).
DATA MONITOR
Operation Procedure
1. After turning OFF ignition switch, connect CONSULT-II and 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 carry out CAN communication.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAN COMM CIRCUIT
[U1000]

CAN communication line is open or shorted.

ABS actuator and electric unit (control unit) internal malfunc-
tion

Battery voltage for EMC is suddenly interrupted for approxi-
mately 0.5 seconds or more.BRC-53, "
Inspection 14:
CAN Communication
System" (Note 2)
BR FLUID LEVEL LOW
[C1155]Brake fluid level drops or circuit between ABS actuator and elec-
tric unit (control unit) and brake fluid level switch is open or
shorted.BRC-51, "
Inspection 11:
Brake Fluid Level Switch
System"
VARIANT CODING
[C1170]V coding is not functioning.ABS actuator and elec-
tric unit (control unit) and
circuit
G - SENSOR (AWD model)
[C1113]Decel G sensor is malfunctioning, or signal line of Decel G sen-
sor is open or shorted.BRC-44, "
Inspection 6:
Yaw Rate/Side G-Sensor
(2WD model), Yaw Rate/
Side/Decel G-sensor
(AWD models) System"
ENGINE SIGNAL 1
[C1130]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine fuel cut system is malfunction-
ing.–
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 malfunc-
tioning.–
ENGINE SIGNAL 6
[C1136]Based on the signal from ECM, ABS actuator and electric unit
(control unit) judges that engine control system is malfunctioning.–
ACTUATOR RLY
[C1140] (Note 3)

Actuator solenoid valve relay is ON, even if control unit sends
off signal.

Actuator solenoid valve relay is OFF, even if control unit sends
on signal.BRC-47, "
Inspection 8:
Actuator Motor System"
DECEL G SEN SET (AWD model)
[C1160]Neutral position correction of Decel G -sensor is not finished.BRC-52, "
Inspection 13:
When “DECEL G SEN
SET” Appears on Self-
Diagnosis Results Dis-
play (AWD Model)"
Self-diagnostic item Malfunction detecting condition Check system

TROUBLE DIAGNOSIS
BRC-31
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2004 November 2004 FX35/FX45
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in the system selection screen. In this case, repeat
the operation from step 1.
4. Return to the Monitor Item Selection screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
5. When “START” is touched, the data monitor screen is displayed.
Display Item List
Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR×××Gear position judged by PNP
switch signal is displayed.
FR RH SENSOR
(km/h, MPH)×××Wheel speed calculated by front
RH wheel sensor signal is dis-
played.
FR LH SENSOR
(km/h, MPH)×××Wheel speed calculated by front
LH wheel sensor signal is dis-
played.
RR RH SENSOR
(km/h, MPH)×××Wheel speed calculated by rear
RH wheel sensor signal is dis-
played.
RR LH SENSOR
(km/h, MPH)×××Wheel speed calculated by rear
LH wheel sensor signal is dis-
played.
BATTERY VOLT
(V)×××Voltage supplied to ABS actuator
and electric unit (control unit) is
displayed.
SLCT LVR POSI×××Shift position judged by PNP
switch signal.
ACCEL POS SIG
(%)×––Throttle valve open/close status
judged by CAN communication
signal is displayed.
ENGINE SPEED
(rpm)×××Engine speed judged by CAN
communication signal is displayed.
STR ANGLE SIG
(deg)×––Steering angle detected by steer-
ing angle sensor is displayed.
YAW RATE SEN
(d/s)××–Yaw rate detected by yaw rate
sensor is displayed.
DECEL G-SEN (AWD model)
(G)×××Longitudinal acceleration detected
by decel G-sensor is displayed.
SIDE G-SENSOR
(m/s
2 )×––Lateral acceleration detected by
side G-sensor is displayed.
PRESS SENSOR
(bar)×––Brake fluid pressure detected by
pressure sensor is displayed.
STOP LAMP SW
(ON/OFF)×××Stop lamp switch (ON/OFF) status
is displayed.
OFF SW
(ON/OFF) ×× ×VDC OFF switch (ON/OFF) sta-
tus is displayed.
ABS WARN LAMP
(ON/OFF)–××ABS warning lamp (ON/OFF) sta-
tus is displayed.
SLIP LAMP
(ON/OFF)–××SLIP indicator lamp (ON/OFF) sta-
tus is displayed.
FR LH IN SOL
(ON/OFF)–××Front LH IN ABS solenoid (ON/
OFF) status is displayed.

BRC-32
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
FR LH OUT SOL
(ON/OFF)–××Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
RR RH IN SOL
(ON/OFF)–××Rear RH IN ABS solenoid (ON/
OFF) status is displayed.
RR RH OUT SOL
(ON/OFF) –××Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF)–××Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF)–××Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF)–××Rear LH IN ABS solenoid (ON/
OFF) status is displayed.
RR LH OUT SOL
(ON/OFF)–××Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
OFF LAMP
(ON/OFF)–××OFF Lamp (ON/OFF) status is dis-
played.
MOTOR RELAY
(ON/OFF)–××ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF)– ×× ABS actuator relay signal (ON/
OFF) status is displayed.
CV1
(ON/OFF)––×Primary side switch-over solenoid
valve 1 (cut valve 1) (ON/OFF)
status is displayed.
CV2
(ON/OFF)––×Secondary side switch-over sole-
noid valve 2 (cut-valve 2) (ON/
OFF) status is displayed.
SV1
(ON/OFF)––×Primary side switch-over solenoid
valve 1 (suction valve 1) (ON/OFF)
status is displayed.
SV2
(ON/OFF)––×Secondary side switch-over sole-
noid valve 2 (suction valve 2) (ON/
OFF) status is displayed.
VDC FAIL SIG
(ON/OFF)––×VDC fail signal (ON/OFF) status is
displayed.
TCS FAIL SIG
(ON/OFF)––×TCS fail signal (ON/OFF) status is
displayed.
ABS FAIL SIG
(ON/OFF)––×ABS fail signal (ON/OFF) status is
displayed.
EBD FAIL SIG
(ON/OFF)––×EBD fail signal (ON/OFF) status is
displayed.
FLUID LEV SW
(ON/OFF)×––Brake fluid level switch (ON/OFF)
status is displayed.
EBD SIGNAL
(ON/OFF)––×EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF)––×ABS operation (ON/OFF) status is
displayed.
TCS SIGNAL
(ON/OFF)––×TCS operation (ON/OFF) status is
displayed.
VDC SIGNAL
(ON/OFF)––×VDC operation (ON/OFF) status is
displayed.
EBD WARN LAMP
(ON/OFF)––×Brake warning lamp (ON/OFF)
status is displayed. (Note) Item
(Unit)Data monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU

BRC-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
ON and OFF Timing for ABS Warning Lamp, VDC OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF
NOTE:
1. Brake warning lamp will turn on in case of operating parking brake (switch turned on) or of actuating brake
fluid level switch (brake fluid is insufficient).
2. After starting engine, turn OFF.
Basic InspectionAFS001SS
BASIC INSPECTION 1: BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill brake fluid.
2. Check brake piping and around ABS actuator and electric unit (control unit) for leaks. If there is leaking or
oozing fluid, check the following items.

If ABS actuator and electric unit (control unit) connection is loose, tighten piping to the specified torque
and re-perform the leak inspection to make sure there are no leaks.

If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw,
replace the damaged part and re-perform the leak inspection to make sure there are no leaks.

When there is fluid leaking or oozing from a part other than ABS actuator and electric unit (control unit)
connection, if fluid is just oozing out, use a clean cloth to wipe off the oozing fluid and re-check for
leaks. If fluid is still oozing out, replace the damaged part.

When there is fluid leaking or oozing at ABS actuator and electric unit (control unit), if fluid is just oozing
out, use a clean cloth to wipe off oozing fluid and re-check for leaks. If fluid is still oozing out, replace
ABS actuator and electric unit (control unit) body.
CAUTION:
ABS actuator and electric unit (control unit) body cannot be disassembled.
3. Check brake pad degree of wear. Refer to BR-20, "
PAD WEAR INSPECTION" in “Front Disc Brake” and
BR-25, "
PAD WEAR INSPECTION" in “Rear Disc Brake”
BASIC INSPECTION 2: POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPEC-
TION
Make sure battery positive cable, negative cable and ground connection are not loose. If looseness is
detected, tighten the cables. In addition, check the battery voltage to make sure it has not dropped and alter-
nator is normal.
ConditionABS warning
lampVDC OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks
Ignition SW OFF. – – – — —
Approx. 2 seconds after igni-
tion switch is turned ON.×××× [Note 2] —
Approx. 2 seconds later after
ignition switch ON.–––× [Note 2]Go out 2 seconds after
ignition switch is turned
ON.
VDC OFF SW is turned ON.
(VDC/TCS function is OFF.)–×–— —
VDC/TCS/ABS error.×××—There is an ABS actua-
tor and electric unit
(control unit) error.
(Power, ground or sys-
tem malfunction)
When VDC/TCS is not func-
tioning normally.–××——
EBD error.××××—

TROUBLE DIAGNOSIS
BRC-37
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2004 November 2004 FX35/FX45
BASIC INSPECTION 3: ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPECTION
1. Make sure ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP indica-
tor lamp turns on approximately 2 second, and brake warning lamp turns on when ignition switch is turned
ON. If they do not, check VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-53, "
VDC
OFF SWITCH" . Check CAN communications. Refer to “CAN Communication Inspection”. If there are no
errors with VDC OFF switch and CAN communication system, check combination meter. Refer to DI-4,
"COMBINATION METERS" .
2. Make sure ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp turn off approximately 2 sec-
ond after turn ignition switch ON, and brake warning lamp turns off after engine starts. If lamps do not turn
off, perform self-diagnosis.
3. With engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is
turned ON and OFF. If indicator lamp status does not correspond to switch operation, check the VDC OFF
switch system. Refer to BRC-53, "
VDC OFF SWITCH" .
4. Make sure ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp turn off 2 seconds after
engine is started. If ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp have not turned
off 10 seconds after engine has been started, perform self-diagnosis of ABS actuator and electric unit
(control unit).
5. After performing the self-diagnosis, be sure to erase the error memory. Refer to BRC-27, "
SELF-DIAGNO-
SIS" .
CAUTION:
Brake warning lamp turns on when parking brake is operated (switch on) and brake fluid level
switch is activated (leak of brake fluid).
Inspection 1: Wheel Sensor SystemAFS001ST
DTC C1101-C1108
After using the CONSULT-II SELF-DIAG RESULTS to determine the location of the malfunctioning wheel sen-
sor, check all areas to determine the component to be replaced.
CAUTION:

Do not measure the resistance value and also voltage between sensor terminal with tester etc.,
because sensor is an active sensor.

Do not expand terminal of connector with a tester terminal stick, when it does the inspection with
tester.
INSPECTION PROCEDURE
1. CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear, and size within the standard values?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tire.
2. CHECK SENSOR AND SENSOR ROTOR

Check the condition of the sensor mount (for looseness, etc.).

Check the surface of front sensor rotor rubber for damage.

Check rear sensor rotor for damage.
OK or NG
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.

TROUBLE DIAGNOSIS
BRC-51
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2004 November 2004 FX35/FX45
Inspection 11: Brake Fluid Level Switch SystemAFS001T4
DTC C1155
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
1. Check fluid level in brake fluid reservoir tank. If the level is low, add brake fluid.
2. Clear the stored self-diagnostic results and check self-diagnosis results.
Is the above displayed in the self-diagnosis display item?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect brake fluid level switch connector and ABS actuator and electric unit (control unit) connector
and check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found,
repair or replace terminal.
2. Securely reconnect connectors and Re-perform self-diagnosis.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELEC-
TRIC UNIT (CONTROL UNIT)
1. Turn ignition switch OFF and disconnect brake fluid level switch
connector and ABS actuator and electric unit (control unit) con-
nector.
2. Check continuity between brake fluid level switch harness con-
nector E52 and ABS actuator and electric unit (control unit) har-
ness connector E56.
OK or NG
OK >> Connect connectors and perform a ABS actuator and electric unit (control unit) self-diagnosis.
NG >> If open or short in harness, repair or replace applied harness.
Self-diagnostic results
BR FLUID LEVEL LOW
SFIA1193E
ABS actuator and electric unit
(control unit)
(Harness connector E56)Brake fluid level switch
(Harness connector E52)Continuity
8 (GY) 1 (GY) Yes
8 (GY) Ground No
Ground 2 (B) Yes

BRC-54
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
Symptom 2: Unexpected Pedal ReactionAFS001T8
1. CHECK BRAKE PEDAL STROKE
Check brake pedal stroke.
Is the stroke too long?
YES >>
Bleed air from brake piping.

Check brake pedal, brake booster, and master cylinder mount for play, looseness, and brake
system for fluid leaks, etc. If any malfunctions are found, make repair.
NO >> GO TO 2.
2. CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector E56 and make sure that braking force is suf-
ficient when ABS in not operating. After the inspection, reconnect connector.
OK or NG
OK >> GO TO symptom 1 “Step 2”. Refer to BRC-53, "Symptom 1: Excessive ABS Function Operation
Frequency" .
NG >> Check brake system.
Symptom 3: The Braking Distance Is LongAFS001T9
CAUTION:
On slippery road surfaces, the stopping distance might be longer with the ABS operating than when
the ABS is not operating.
1. CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector E56 to deactivate ABS. In this condition,
check stopping distance. After inspection, connect connector.
OK or NG
OK >>
Bleed air from brake piping.

Check brake system.
NG >> GO TO symptom 1 “Step 2”. Refer to BRC-53, "
Symptom 1: Excessive ABS Function Operation
Frequency" .
Symptom 4: The ABS Function Does Not OperateAFS001TA
CAUTION:
The ABS does not operate when the speed is 10 km/h (6 MPH) or less.
1. CHECK ABS WARNING LAMP DISPLAY
Make sure warning lamp turns off approximately 2 second after the ignition switch is turned on or when driv-
ing.
OK or NG
OK >> GO TO symptom 1 “Step 2”. Refer to BRC-53, "Symptom 1: Excessive ABS Function Operation
Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-27, "
SELF-DIAGNOSIS" .