wheel INFINITI M35 2007 Factory Workshop Manual

TROUBLE DIAGNOSIS
BRC-13
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
Component Parts LocationNFS000QC
1. Front wheel sensor 2. ABS actuator and electric unit (con-
trol unit)3. Warning lamp, Indicator lamp
(Combination meter)
4. VDC OFF switch 5. Steering angle sensor 6. Rear wheel sensor
7. Yaw rate/side G sensor
SFIA3017E

TROUBLE DIAGNOSIS
BRC-21
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
Control Unit Input/Output Signal StandardNFS000RH
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 contentData monitor
ConditionReference value in nor-
mal operation
FR LH SENSOR
FR RH SENSOR
RR LH SENSOR
RR RH SENSORWheel speedVehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)Nearly matches the
speedometer display
(± 10 % or less)
STOP LAMP SW Brake pedal operationWhen brake pedal is depressed ON
When brake pedal is not depressed OFF
BATTERY VOLTBattery voltage supplied to the ABS
actuator and electric unit (control unit)Ignition switch ON 10 – 16 V
GEAR Gear position determined by TCM1st gear
2nd gear
3rd gear
4th gear
5th gear1
2
3
4
5
SLCT LVR POSI A/T select lever positionP position
R position
N position
D positionP
R
N
D
OFF SW VDC OFF switchVDC OFF switch :ON
(When VDC OFF indicator lamp is ON)ON
VDC OFF switch :OFF
(When VDC OFF indicator lamp is OFF)OFF
YAW RATE SENYaw rate detected by yaw rate/side G
sensorWhen vehicle stop Approx. 0 d/s
When vehicle turning (–75 to 75 d/s)
4WD MODE MON
(Note 2)AWD activated Engine running AUTO
ACCEL POS SIG Throttle actuator opening/closing is dis-
played (linked with accelerator pedal)Accelerator pedal not depressed
(Engine stopped)0 %
Depress accelerator pedal
(Engine stopped)0 - 100 %
SIDE G-SENSOR Transverse G detected by side G sensorVehicle stopped
Approx. 0 m/s
2
Vehicle turning rightNegative value
(m/s2 )
Vehicle turning leftPositive value
(m/s
2 )
STR ANGLE SIGSteering angle detected by steering
angle sensorStraight-ahead Approx. 0°
Steering wheel turned –720 to 720°
PRESS SENSORBrake fluid pressure detected by pres-
sure sensorWith ignition switch turned ON and brake
pedal releasedApprox. 0 bar
With ignition switch turned ON and brake
pedal depressed–40 to 300 bar
ENGINE RPM Engine speedWith engine stopped 0 rpm
Engine runningAlmost in accordance
with tachometer display

BRC-24
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Self-DiagnosisNFS000QG
OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Perform “CONSULT-II Starting Procedure”. Refer to GI-38, "
CONSULT-II Start Procedure" .
3. Turn ignition switch ON.
4. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “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 “SELECT SYSTEM” screen. In this case,
repeat the operation from step 1.
6. The self-diagnostic results are displayed. (Touch “PRINT” to print out self-diagnostic results, if necessary.)

Check ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp if “NO FAILURE” is dis-
played. Refer to BRC-50, "
Warning Lamp and Indicator Lamp Circuit" .
7. Perform the appropriate inspection from display item list, and repair or replace the malfunctioning compo-
nent.Refer to BRC-25, "
DISPLAY ITEM LIST" .
8. Start engine and drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:
When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning
lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp will not turn off even
when the system is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or
more for approximately 1 minute.
ERASE MEMORY
1. Turn ignition switch OFF.
2. Start engine and touch “ABS”, “SELF-DIAG RESULTS”, “ERASE MEMORY” in order on the CONSULT-II
screen to erase the diagnostic memory.
If “ABS” is not indicated, go to GI-39, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the diagnostic memory is not erased, re-perform the operation from step 4.
3. Perform self-diagnosis again, and make sure that diagnostic memory is erased.
4. Drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute as the final inspection, and make
sure that the ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp
turn off.
NOTE:

Brake warning lamp will turn on in case of parking brake operation (when switch is ON) or of brake fluid
level switch operation (when brake fluid is insufficient).

VDC OFF switch should not stay "ON" position.

TROUBLE DIAGNOSIS
BRC-25
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
DISPLAY ITEM LIST
Code Display item Malfunction detecting condition Check item
C1101 RR RH SENSOR-1Circuit of rear RH wheel sensor is open. Or when the sensor power
voltage is outside the standard.
BRC-34, "
Wheel
Sensor Circuit"
(Note 1) C1102 RR LH SENSOR-1Circuit of rear LH wheel sensor is open. Or when the sensor power volt-
age is outside the standard.
C1103 FR RH SENSOR-1Circuit of front RH wheel sensor is open. Or when the sensor power
voltage is outside the standard.
C1104 FR LH SENSOR-1Circuit of front LH wheel sensor is open. Or when the sensor power
voltage is outside the standard.
C1105 RR RH SENSOR-2When the circuit in the rear RH wheel sensor is short-circuited. Or when
the distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
C1106 RR LH SENSOR-2When the circuit in the rear LH wheel sensor is short-circuited. Or when
the distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
C1107 FR RH SENSOR-2When the circuit in the front RH wheel sensor is short-circuited. Or
when the distance between the wheel sensor and sensor rotor is too
large and the sensor pulse cannot be recognized by the control unit.
C1108 FR LH SENSOR- 2When the circuit in the front LH wheel sensor is short-circuited. Or
when the distance between the wheel sensor and sensor rotor is too
large and the sensor pulse cannot be recognized by the control unit.
C1109BATTERY VOLTAGE
[ABNORMAL]When the ABS actuator and electric unit (control unit) power supply
voltage is lower than normal.BRC-37, "
ABS
Actuator and
Electric Unit
(Control Unit)
Power Supply
and Ground Cir-
cuit"
C1110 CONTROLLER FAILUREWhen there is an internal malfunction in the ABS actuator and electric
unit (control unit).BRC-36, "
ABS
Actuator and
Electric Unit
(Control Unit)"
C 1111 P U M P M O TO RDuring the actuator motor operating with ON, when the actuator motor
turns OFF, or when the control line for actuator motor relay is open.BRC-38, "
ABS
Motor and Motor
Relay Circuit"During the actuator motor operating with OFF, when the actuator motor
turns ON, or when the control line for relay is shorted to ground.
C1114 MAIN RELAYDuring the actuator relay operating with OFF, when the actuator relay
turns ON, or when the control line for the relay is shorted to the ground.BRC-39, "
Sole-
noid, VDC
Change-Over
Valve and Actua-
tor Relay Circuit"
During the actuator relay operating with ON, when the actuator relay
turns OFF, or when the control line for the relay is open.
C 111 5ABS SENSOR
[ABNORMAL SIGNAL]When wheel sensor input signal is malfunctioning.BRC-34, "
Wheel
Sensor Circuit"
(Note 1)
C1116 STOP LAMP SW When stop lamp switch circuit is open.BRC-43, "
Stop
Lamp Switch Cir-
cuit"

TROUBLE DIAGNOSIS
BRC-27
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
Note 1: After completing repairs of shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Make sure that
ABS warning lamp turns off while driving vehicle at 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 control unit power voltage.
Note 2: When malfunctions are detected in several systems, including CAN communication circuit [U1000], troubleshoot CAN communi-
cation circuit. Refer to BRC-48, "
CAN Communication Circuit" . C1155 BR FLUID LEVEL LOWBrake fluid level is low or communication line between the ABS actuator
and electric unit (control unit) and brake fluid level switch is open or
shorted. BRC-46, "
Brake
Fluid Level
Switch Circuit"
C1156 ST ANG SEN COM CIR CAN communication circuit or steering angle sensor is malfunctioning.BRC-48, "
CAN
Communication
Circuit"
C1170 VARIANT CODING In a case where VARIANT CODING is different.BRC-36, "
ABS
Actuator and
Electric Unit
(Control Unit)"
C1185 ACC CONT ICC sensor integrated unit internal malfunction.BRC-48, "
ICC
Sensor Inte-
grated Unit Cir-
cuit (With ICC)"
U1000 CAN COMM CIRCUITWhen ABS actuator and electric unit (control unit) is not transmitting or
receiving CAN communication signal for 2 seconds or more.BRC-48, "
CAN
Communication
Circuit"
(Note 2)
U1100 ACC COMM CIRCUITWhen there is a malfunction in the CAN communication circuit or ICC
sensor integrated unit.BRC-48, "
CAN
Communication
Circuit"
Code Display item Malfunction detecting condition Check item

BRC-28
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Data MonitorNFS000QH
OPERATION PROCEDURE
1. After ignition switch OFF, perform “CONSULT-II Starting Procedure”. Refer to GI-38, "CONSULT-II Start
Procedure" .
2. Touch “ABS”, “DATA MONITOR” in order on CONSULT-II screen.
CAUTION:
When “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.
3. At the monitor item selection screen, touch one of the items “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”.
4. Touch “START” to proceed to the data monitor screen.
DISPLAY ITEM LIST
Item
(Unit)Data monitor item selection
Display content
ECU INPUT
SIGNALSMAIN SIGNALSSELECTION
FROM MENU
FR LH SENSOR
[km/h (MPH)]×××
Wheel speed FR RH SENSOR
[km/h (MPH)]×××
RR LH SENSOR
[km/h (MPH)]×××
RR RH SENSOR
[km/h (MPH)]×××
STOP LAMP SW
(ON/OFF)×××Brake pedal operation
BATTERY VOLT
(V)×××Battery voltage supplied to the ABS actuator and elec-
tric unit (control unit)
GEAR×××Gear position determined by TCM
SLCT LVR POSI×××A/T select lever position
OFF SW
(ON/OFF)×××VDC OFF switch
ACCEL POS SIG
(%)×—×Throttle actuator opening/closing is displayed
(Linked with accelerator pedal)
SIDE G-SENSOR
(m/s
2 )×—×Transverse G detected by side G sensor
STR ANGLE SIG
(°)×—×Steering angle detected by steering angle sensor
PRESS SENSOR
(bar)×—×Brake fluid pressure detected by pressure sensor
ENGINE RPM
(rpm)×—×With engine running
YAW RATE SEN
(d/s)×××Yaw rate detected by yaw rate/side G sensor
FLUID LEV SW
(ON/OFF)×—×Brake fluid level switch
PARK BRAKE SW
(ON/OFF)×—×Parking brake switch
4WD MODE MON
(Note)×××AW D a ctiv ate d

TROUBLE DIAGNOSIS
BRC-31
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
TEST ITEMS
Solenoid Valve
NOTE:
The example shown is for 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 SIGNALS" for each test item. In addition, when perform-
ing an active test of the VDC/TCS function, select the item menu
for each test item.

For ABS solenoid valve, touch “UP”, “KEEP”, and “DOWN” on
the display screen. For ABS solenoid valve (ACT), touch “UP”,
“ACT UP”, “ACT KEEP” and confirm that solenoid valves (IN,
OUT, USV, HSV) operate as shown in the table below.
*: ON for 1 to 2 seconds after the touch, and then OFF
Note: A brief moment of ON/OFF condition occurs every 20 seconds after ignition switch turned ON. This is not malfunction because it is
an operation for checking.
ABS Motor
Touch “ON” and “OFF” on screen. Make sure motor relay and actua-
tor relay operates as shown in table below.
Note: A brief moment of ON/OFF condition occurs every 20 seconds after ignition
switch turned ON. This is not malfunction because it is an operation for checking.
SFIA0678E
Operation
(Note)ABS solenoid valve ABS solenoid valve (ACT)
UP KEEP DOWN UP ACT UP ACT KEEP
FR RH IN SOL OFF ON ON OFF OFF OFF
FR RH OUT SOL OFF OFF ON* OFF OFF OFF
USV [FR-RL] OFF OFF OFF OFF ON ON
HSV [FR-RL] OFF OFF OFF OFF ON* OFF
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY (Note) ON ON
SFIA0593E

BRC-32
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
For Fast and Accurate DiagnosisNFS000QJ
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read General Information (GI) to confirm general precautions. Refer
to GI-4, "
General Precautions" .

If steering angle sensor, steering system parts, suspension system parts, ABS actuator and electric unit
(control unit) or tires have been replaced, or if wheel alignment has been adjusted, be sure to adjust neu-
tral position of steering angle sensor before driving. Refer to BRC-6, "
Adjustment of Steering Angle Sen-
sor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-24, "ERASE MEMORY" .

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

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.

The following symptoms may be caused by normal operations.
Symptom Symptom description Result
Motor operation soundThis is sound of motor inside VDC actuator. Slight sound may occur
during VDC, TCS, and ABS operation.
Normal
Just after engine starts, the motor operating sound may be heard.
This is a normal condition of the system operation check.
System operation check soundWhen engine starts, slight “click” sound may be heard from engine
room. This is normal and is part of system operation check.Normal
VDC/TCS operation
(SLIP indicator lamp ON)TCS may activate momentarily if wheel speed changes when driving
over location where friction varies, when downshifting, or when fully
depressing accelerator pedal.Normal
Cancel the VDC/TCS
function for the inspec-
tion on a chassis dyna-
mometer. When checking speed meter etc. With a 2-wheel-drive chassis dyna-
mometer, vehicle speed is not increased by pressing down on the
accelerator.
ABS operation
(Longer stopping distance)On roads with low friction, such as snowy roads or gravel roads, vehi-
cles with ABS may require a longer stopping distance. Therefore,
when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accelerationDepending on road conditions, driver may feel that feeling of acceler-
ation 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 FOR SYSTEM
Revision: 2007 April2007 M35/M45
TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Wheel Sensor CircuitNFS000QL
CAUTION:
Do not check between wheel sensor terminals.
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK TIRE
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES >> GO TO 3.
NO >>

Adjust air pressure, or replace tire.

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
3. CHECK SENSOR AND SENSOR ROTOR

Check sensor rotor for damage.

Check wheel sensor for damage, disconnection or looseness.
OK or NG
OK >> GO TO 4.
NG >>

Repair wheel sensor mount or replace sensor rotor. Then perform the self-diagnosis.

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
4. CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector E30 and
malfunctioning wheel sensor connector E41(FR-RH), E59(FR-LH), B466(RR-RH), B467(RR-LH). Check
terminal to see if it is deformed, disconnected, loose, etc., Repair or replace it if any malfunction condition
is found.
2. Reconnect connectors and then perform the self-diagnosis. Refer to BRC-24, "
Self-Diagnosis" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
Self-diagnosis 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-35
[VDC/TCS/ABS]
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BRC
Revision: 2007 April2007 M35/M45
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector E41(FR-RH), E59(FR-LH), B466(RR-RH),
B467(RR-LH) and ABS actuator and electric unit (control unit)
connector E30.
2. Check continuity between terminals. (Also check continuity
when steering wheel is turned right and left and when sensor
harness inside the wheel house is moved.)
OK or NG
OK >> GO TO 6.
NG >>

Repair or replace malfunctioning components.

Perform the self-diagnosis, and make sure that the result shows “NO DTC IS DETECTED”.
6. CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Disconnect malfunctioning wheel sensor connector.
2. Turn ignition switch ON and check voltage between wheel sen-
sor harness connector power supply terminal and ground.
OK or NG
OK >> Replace wheel sensor.
NG >> Replace ABS actuator and electric unit (control unit).
SFIA3030E
Power supply circuit Signal circuit Ground circuit
WheelABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)
(signal)Ground
Front RH 9 1 10 2 9, 10
— Front LH 26 1 5 2 26, 5
Rear RH 7 1 29 2 7, 29
Rear LH 6 1 27 2 6, 27
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.
Wheel Wheel sensor Ground Voltage
Front RH
1—8 V or more Front LH
Rear RH
Rear LH
SFIA3341E