2005 INFINITI FX35 Ignition switch

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:
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

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

TROUBLE DIAGNOSIS BRC-25
[VDC/TCS/ABS]
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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: 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

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 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 performs CAN communication.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
5. Touch “ABS” in the “SELECT SYSTEM” screen. If “ABS” is not indicated, go to GI-39, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
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, "
Adjustment of Steer-
ing Angle Sensor Neutral
Position"
SELF-DIAG-
NOSTIC
RESULTS Self-diagnostic results can be read and erased quickly.
BRC-27, "
SELF-DIAGNOSIS"
DATA MONI-
TOR Input/Output data in the ABS actuator and electric unit (control unit) can be read.
BRC-30, "DATA MONITOR"
CAN DIAG
SUPPORT
MNTR The results of transmit/receive diagnosis of communication can be read. —
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-33, "
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. —
SKIA3098E
PKIA2102E

TROUBLE DIAGNOSIS BRC-27
[VDC/TCS/ABS]
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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

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Note 1: After completing repairs of shorted sensor circuit, when turning ignition switch ON, ABS warning lamp
turned on. Make 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 ignition switch OFF, 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 performs 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-39, "
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
Circuit" (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
Circuit"
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) 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 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 Circuit"
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-
diagnostic Results Dis-
play (AWD Model)"
Self-diagnostic item Malfunction detecting condition Check system

TROUBLE DIAGNOSIS BRC-31
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
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
SIGNALS MAIN
SIGNALS SELECTION
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-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
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 can not be disassembled.
3. Check brake pad degree of wear. Refer to BR-20, "
PAD WEAR INSPECTION" in “Front Disc Brake” and
BR-26, "
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.
Condition ABS warning
lamp VDC OFF indi-
cator lamp SLIP indicator
lamp Brake warning
lamp [Note 1] Remarks
Ignition switch 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. ×××× —