INFINITI FX35 2006 Service Manual

TROUBLE DIAGNOSIS BRC-29
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
Data MonitorNFS000OJ
OPERATION PROCEDURE
1. After turning ignition switch OFF, perform “CONSULT-II Starting Procedure”. Refer to GI-38, "CONSULT-II
Start Procedure" .
2. Turn ignition switch ON.
3. Touch “ABS”, “DATA MONITOR” in order on the CONSULT-II screen. 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.
SLCT LVR POSI ××× Shift position judged by PNP switch signal.
FR RH SENSOR
(km/h) ××× Wheel speed calculated by front RH wheel sensor signal is
displayed.
FR LH SENSOR
(km/h) ××× Wheel speed calculated by front LH wheel sensor signal is
displayed.
RR RH SENSOR
(km/h) ×××
Wheel speed calculated by rear RH wheel sensor signal is
displayed.
RR LH SENSOR
(km/h) ××× Wheel speed calculated by rear LH wheel sensor signal is
displayed.
BATTERY VOLT
(V) ××× Voltage supplied to ABS actuator and electric unit (control
unit) is displayed.
ENGINE SPEED
(rpm) ×××
Engine speed judged by CAN communication signal is dis-
played.
DECEL G-SEN
(G) (AWD models) ××× Longitudinal acceleration detected by decel G sensor is dis-
played.
OFF SW
(ON/OFF)
×× × VDC OFF switch (ON/OFF) status is displayed.
STOP LAMP SW
(ON/OFF) ×××
Stop lamp switch (ON/OFF) status is displayed.
YAW RATE SEN
(d/s) ××
– Yaw rate detected by yaw rate sensor is displayed.
ACCEL POS SIG
(%) ×
–– Throttle valve open/close status judged by CAN communica-
tion signal is displayed.
STR ANGLE SIG
(deg) ×
–– Steering angle detected by steering angle sensor is dis-
played.
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 dis-
played.
FLUID LEV SW
(ON/OFF) ×
– – Brake fluid level switch (ON/OFF) status is displayed.
ABS WARN LAMP
(ON/OFF) –
×× ABS warning lamp (ON/OFF) status is displayed.
SLIP LAMP
(ON/OFF) –
×× SLIP indicator lamp (ON/OFF) status is displayed.

BRC-30
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
FR LH IN SOL
(ON/OFF) –
×× Front LH IN ABS solenoid (ON/OFF) status is displayed.
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 displayed.
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 solenoid 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 solenoid 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.
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)
CRANKING SIG
(ON/OFF) ––
×Cranking condition (ON/OFF) status is displayed.
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU

TROUBLE DIAGNOSIS BRC-31
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
× :Applicable
–:Not applicable
Note: Serves as EBD warning lamp.
Active TestNFS000RF
CAUTION:

Do not perform active test while driving.

Make sure to completely bleed air from the brake system.

Active test can not be performed when EBD, ABS, TCS or VDC operation is malfunction.

ABS and brake warning lamps turn on during the active test.
OPERATION PROCEDURE
1. Perform “CONSULT-II Starting Procedure”. Refer to GI-38, "CONSULT-II Start Procedure" .
2. Touch “ACTIVE TEST”.
3. The test item selection screen is displayed.
4. Touch necessary test item.
5. With the “MAIN SIGNALS” display shown in reverse, touch “START”.
6. The “ACTIVE TEST” screen will be displayed, so perform the following test.
4WD FAIL REQ
(ON/OFF) ––
×AWD fail-safe signal (ON/OFF) status is displayed.
2WD/4WD
(2WD/4WD) ––
×Distinguish 2WD and AWD
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
SFIA1172E

BRC-32
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
TEST ITEM
Solenoid Valve
NOTE:
The example shown is for the front right wheel. The procedure for the other wheels is the same as given
below.

When performing an active test of the ABS function, select the
main item for each test item. In addition, when performing an
active test of the VDC/TCS function, select the item menu for
each test item.

For the ABS solenoid valve, touch “UP” “KEEP” “DOWN”, and
for the ABS solenoid valve (ACT), touch “UP” “ACTUATOR UP”
“ACTUATOR KEEP”, and check to make sure that all solenoid
valve (in, out) are operating as given in the table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
NOTE:

If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.

“TEST IS STOPPED” is displayed approximately 10 seconds after operation starts.

After “TEST IS STOPPED” is displayed, touch “BACK” and perform the test from the Step 8.
ABS Motor
Touch “ON” and “OFF” on the screen. Make sure ABS motor relay
operates as shown in table below.
NOTE:

If active test is performed with brake pedal depressed, pedal
stroke may change. This is normal.

“TEST IS STOPPED” is displayed approximately 10 seconds
after operation starts.
SFIA2097E
Operation ABS solenoid valve ABS solenoid valve (ACT)
UP KEEP DOWN UP ACTUATOR
UP ACTUATOR
KEEP
FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
CV 1 OFF OFF OFF OFF ON ON
SV 1 OFF OFF OFF OFF ON* OFF
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON
SFIA0593E

TROUBLE DIAGNOSIS BRC-33
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
For Fast and Accurate DiagnosisNFS000NH
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read precautions. Refer to BRC-11, "How to Proceed with Diagnosis"
.

If ABS actuator and electric unit (control unit), steering angle sensor, steering system parts or suspension
system parts have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of
steering angle sensor before driving. Refer to BRC-6, "
Adjustment of Steering Angle Sensor Neutral Posi-
tion" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-25, "Self-Diagnosis" .

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

To use CONSULT-II to perform self-diagnosis of ABS actuator and electric unit (control unit), active tests,
or work support, first stop work, then connect CONSULT-II and select “ABS”.

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system error may be indicated. In this case, start engine to resume the normal screen.

VDC/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
Symptom Symptom description Result
Motor operation noise This is noise of motor inside ABS actuator and electric unit (control unit).
Slight noise may occur during VDC, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and valves
operating noise may be heard. It happens only once after ignition switch is
ON. This is a normal status of the system operation check.
System operation check noise When engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check. Normal
VDC/TCS operation
(SLIP indicator lamp blinking) TCS may activate momentarily if wheel speed changes when driving over
location where friction coefficient varies, when up/downshifting, or when
fully depressing accelerator pedal.
Normal
Cancel the VDC/TCS
function for the inspec-
tion on a chassis dyna-
mometer.
For inspection of speedometer or other instruments, press VDC OFF SW
to turn VDC/TCS function off.
When accelerator pedal is depressed on a chassis dynamometer (fixed
front-wheel type), vehicle speed will not increase. This is not normal. It is
result of TCS being activated by stationary front wheels. Warning lamp may
also illuminate to indicate “sensor system error”. This is also normal, and is
the result of the stationary front wheels being detected. To be certain,
restart engine, and drive vehicle at 30 km/h (19 MPH) or more. Make sure
warning lamp does not illuminate.
ABS operation
(Longer stopping distance) On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low. Normal
Insufficient feeling of acceler-
ation Depending on road conditions, driver may feel that feeling of acceleration
is insufficient. This is because traction control, which controls engine and
brakes to achieve optimal traction, has the highest priority (for safety). As a
result, there may be times when acceleration is slightly less than usual for
the same accelerator pedal operation. Normal

BRC-34
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
Basic InspectionNFS000NI
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-19, "
PAD WEAR INSPECTION" in “Front Disc Brake” and
BR-25, "
PAD WEAR INSPECTION" in “Rear Disc Brake”
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
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.
ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP INSPECTION
× : 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).
Note 2:After starting engine, turn OFF.
1. Make sure ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP indica- tor lamp turn 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-50, "
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-5,
"COMBINATION METERS" .
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. ×××× —

TROUBLE DIAGNOSIS BRC-35
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
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-50, "
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-25, "
Self-Diagnosis"
.
NOTE:
Brake warning lamp turns on when parking brake is operated (switch on) and brake fluid level switch is acti-
vated (leak of brake fluid).

BRC-36
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 December 2006 FX35/FX45
TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Wheel Sensor CircuitNFS000NJ
DTC C1101-C1108, C1115
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 condition of the sensor mount (for looseness, etc.).

Check 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.
3. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 4.
NO >> INSPECTION END
4. CHECK CONNECTOR
1. Disconnect ABS actuator and electric unit (control unit) connector and malfunctioning wheel sensor con- nector E46 (FR-LH), E33 (FR-RH) or B69 (RR). Check terminal for deformation, open circuit, poor con-
tact, etc., and repair or replace if any malfunctioning condition is found.
2. Reconnect connectors, drive at a speed of approximately 30 km/h (19 MPH) or more for approximately 1 minute, and perform self-diagnosis.
OK or NG
OK >> Connector terminal contact is loose, damaged, open or shorted.
NG >> GO TO 5.
Self-diagnostic results
FR RH SENSOR-1,-2
FR LH SENSOR- 1,-2
RR RH SENSOR-1,-2
RR LH SENSOR-1,- 2
ABS SENSOR [ABNORMAL SIGNAL]

TROUBLE DIAGNOSIS FOR SYSTEM BRC-37
[VDC/TCS/ABS]
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Revision: 2006 December 2006 FX35/FX45
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel sensor connector E46 (FR-LH), E33 (FR-RH) or B69 (RR) and
ABS actuator and electric unit (control unit) connector E56.
2. Check continuity between terminals. (Also check the continuity when steering wheel is turned right and left and when sensor
harness inside wheel well is moved.)
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR
1. Replace wheel sensor that resulted in malfunction by self-diagnosis.
2. Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then perform self-diagnosis.
Is above displayed on self-diagnosis display?
OK >> Wheel sensor has malfunction.
NG >>

Replace ABS actuator and electric unit (control unit).

Perform to self-diagnosis again, and make sure that the result shows “NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED”.
SFIA1186E
Power supply circuit Signal circuit Ground circuit
Wheel ABS actuator
and electric unit (control unit) Wheel sensor ABS actuator
and electric unit (control unit) Wheel sensor ABS actuator and elec-
tric unit (control unit) (signal) ABS actuator and elec-
tric unit (control unit) (ground)
Front RH 34 1 33 2 33, 34
16, 47
Front LH 45 1 46 2 45, 46
Rear RH 43 1 42 2 43, 42
Rear LH 36 3 37 4 36, 37
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.

BRC-38
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 December 2006 FX35/FX45
Engine SystemNFS000NK
DTC C1130-C1133, C1136
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK ENGINE SYSTEM
1. Perform an ECM self-diagnosis and repair or replace malfunctioning items. Perform ECM self-diagnosis again.
2. Perform ABS actuator and electric unit (control unit) self-diagnosis again.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace malfunctioning items. Perform the self-diagnosis again.
VDC/TCS/ABS Control Unit CircuitNFS000NL
DTC C1110
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is the above displayed in the self-diagnosis display items?
YES >> Replace ABS actuator and electric unit (control unit). Perform the self-diagnosis again.
NO >> INSPECTION END
Self-diagnostic results
ENGINE SIGNAL 1
ENGINE SIGNAL 2
ENGINE SIGNAL 3
ENGINE SIGNAL 4
ENGINE SIGNAL 6
Self-diagnostic results
CONTROLLER FAILURE