2007 NISSAN 350Z turn signal

ON-VEHICLE SERVICE
BRC-79
[VDC/TCS/ABS]
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Revision: 2006 November2007 350Z
ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionNFS0003W
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
×: Required
–: Not required
1. Stop vehicle with front wheels in straight-ahead position.
2. Turn ignition switch ON and in the following order touch “ABS” “WORK SUPPORT” “ANGLE SENSOR
ADJUSTMENT” in CONSULT-III screen.
3. Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle sensor.
4. After approximately 10 seconds, touch “END”. (After approximately 60 seconds, it ends automatically.)
5. Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to carry out above operation.
6. Run vehicle with front wheels in straight-ahead position, then stop.
7. Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STEERING ANGLE SIGNAL” on CONSULT-III
screen. Then check that “STEERING ANGLE SIGNAL” is within 0±2.5°. If value is more than specifica-
tion, repeat steps 1 to 7.
8. Erase memory of VDC/TCS/ABS control unit and ECM.
9. Turn ignition switch to OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing VDC/TCS/ABS control unit−
Replacing VDC/TCS/ABS control unit×
Removing/Installing steering angle sensor×
Removing/Installing steering components×
Removing/Installing suspension components×
Change 4 tires to new ones–
Tire rotation–
Adjusting wheel alignment×

BRC-80
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
Revision: 2006 November2007 350Z
SYSTEM DESCRIPTIONPFP:00000
System DiagramNFS0003X
VDC FunctionNFS0003Y

In addition to the TCS/ABS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor and pressure sensor, and the vehicle's driving status (amount of under-
steering / over-steering) is determined from information from the yaw rate/side G sensor, wheel sensor,
etc., and this information is used to improve vehicle stability by controlling the braking and engine power
to all four wheels.

The SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, the body and brake pedal lightly vibrate and mechanical noises may be heard.
This is normal.

The ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when the vehicle
is subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while
the engine is running. In this case, restart the engine on a normal road, and if the ABS warning lamp, VDC
OFF indicator lamp, and SLIP indicator lamp turn off, there is no problem.
TCS FunctionNFS0003Z

The wheel spin of the drive wheels is detected by the VDC/TCS/ABS control unit from the wheel speed
signals from the four wheels, so if wheel spin occurs, the rear wheel right and left brake fluid pressure
control and engine fuel cut are conducted while the throttle value is restricted to reduce the engine torque
and decrease the amount of wheel spin. In addition, the degree the throttle is opened is controlled to
achieve the optimum engine torque.

Depending on road circumstances, the driver may have a sluggish feel. This is normal, because the opti-
mum traction has the highest priority under TCS operation.

TCS may be activated any time the vehicle suddenly accelerates, suddenly downshifts, or is driven on a
road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
SFIA1885E

BRC-94
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Control Unit Input/Output Signal StandardNFS00049
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows the 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 values for normal
operation
WHEEL SENSORVehicle speed calculated using
signals from all four wheel sen-
sorsVehicle stopped 0 km/h (0 MPH)
While driving (Note 1)Nearly matches the speed-
ometer display (±10% or
less)
IN ABS S/V
OUT ABS S/VOperation status of all solenoidsWhen the actuator solenoid operates or
during a fail-safeON
When the actuator relay operates and
the actuator solenoid does not operateOFF
STOP LAMP SW Brake pedal operationBrake pedal depressed ON
Brake pedal not depressed OFF
MOTOR RELAYMotor and motor relay operation
statusWhen the motor relay and motor are
operatingON
When the motor relay and motor are not
operatingOFF
ACTUATOR RLY Actuator relay operation statusWhen the actuator relay is operating OFF
When the actuator relay is not operat-
ingON
ABS WARN LAMPABS warning lamp on condition
(Note 2)ABS warning lamp ON ON
ABS warning lamp OFF OFF
OFF LAMPVDC OFF indicator lamp on con-
dition (Note 3)When the VDC OFF indicator lamp on ON
When the VDC OFF indicator lamp off OFF
OFF SWVDC OFF switch
ON-OFF statusVDC OFF switch ON
(When the VDC OFF indicator lamp on)ON
When VDC OFF switch OFF
(When the VDC OFF indicator lamp off)OFF
SLIP LAMPSLIP indicator lamp on condition
(Note 4)When SLIP indicator lamp is ON ON
When SLIP indicator lamp is OFF OFF
BATTERY VOLTBattery voltage supplied to VDC/
TCS/ABS control unitIgnition switch ON 10 - 16V
GEARDetermined gear shift position
from the A/T PNP switch signalAlways1 (M/T vehicles normally
remain at 1)
POSITIONShift position determined by the
A/T PNP switch signalAlways## (M/T vehicles normally
remain at ##)
YAW RATE SENYaw rate detected by yaw rate
sensorVehicle stopped Approx. 0 d/s
While driving -70 - 70d/s
ACCEL POS SIGThrottle open/close status (linked
to the accelerator pedal)Do not step on the accelerator pedal
(When ignition switch is on)0%
Step on the Brake pedal (When ignition
switch is on)0 to 100%
SIDE G-SENSOR Side G detected by side G sensorVehicle stopped
Approx. 0 m/s
2
While driving
-24.3 - 24.1 m/s2
ST ANGLE SIGSteering angle detected by steer-
ing angle sensorStraight-ahead condition Approx. 0°
Steering wheel turned -720 - 720°

TROUBLE DIAGNOSIS
BRC-95
[VDC/TCS/ABS]
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Revision: 2006 November2007 350Z
Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: Approximately 1 sec. After turning on the ignition switch or when an error is detected.
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal).
Note 3: ON/OFF timing of VDC OFF indicator lamp
ON: Approximately 1 sec. After the ignition switch is turned on, an error is detected, or the VDC OFF switch is on
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal) and the VDC OFF switch is off
Note 4: ON/OFF timing of SLIP indicator lamp
ON: Approximately 1 sec. After turning on the ignition switch or when an error is detected.
OFF: Approximately 1 sec. After the ignition switch is turned on (when system is normal) and the VDC/TCS function is not operating
Flashing: VDC/TCS function is active during drivingPRESS SENSORBrake fluid pressure detected by
pressure sensorDo not step on the Brake pedal (When
ignition switch is on)Approx. 0 bar
Step on the accelerator pedal
(When ignition switch is on)-40 - 300 bar
ENGINE RPM Engine runningWith engine stopped 0rpm
Engine runningAlmost in accordance with
tachometer display
SNOW MODE SWSnow mode switch
ON/OFF conditionSnow mode switch ON ON
Snow mode switch OFF OFF
CONTROL BOOSTER Boost control statusWhen control booster is operating ON
When control booster is not operating OFF
M MODE A/T manual mode status AlwaysOFF (M/T vehicles normally
remain OFF)
OD OFF SW A/T OD switch status AlwaysOFF (M/T vehicles normally
remain OFF)
PARK BRAKE SW Parking brake statusParking brake depressed ON
Parking brake not depressed OFF
USV
HSVVDC switch-over valve statusDuring actuator change-over valve
operation or during a fail-safeON
When the actuator relay operates and
the actuator change-over valve does
not operateOFF
V/R POWERActuator relay activated
(ON/OFF)When actuator relay is active (engine is
running).ON
When actuator relay is not active
(before engine starts and in fail-safe
mode).OFF
M/R OUTPUTActuator motor and motor relay
status (ON/OFF)When actuator motor and motor relay
are active (“ACTIVE TEST” with CON-
SULT-III).ON
When the actuator motor and motor
relay are not operatingOFF
FLUID LEV SWBrake fluid level sensor ON/OFF
statusWhen brake fluid level sensor is on ON
When the brake fluid level sensor is off OFF
FAIL SIGNAL Fail signal statusDuring VDC fail-safe
During TCS fail-safe
During ABS fail-safe
During EBD fail-safeON Monitor item Display ContentData monitor
ConditionReference values for normal
operation

BRC-98
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Note 1: After completing repairs of the shorted sensor circuit, when ignition switch is turned ON, ABS warning lamp turns on. Check that
ABS warning lamp turns off while driving the vehicle at approximately 30 km/h (19 MPH) for approximately 1 minute according to self-
diagnosis procedure. In addition, if wheel sensor 2 is displayed for the wheels, check the wheel sensor circuit and also check the control
unit power voltage.
Note 2: When errors are detected in several systems, including the CAN communication system [U1000], troubleshoot the CAN commu-
nication system.USV LINE [FL-RR]
[C1147]When the primary side VDC change-over valve 1 circuit is open or
short-circuit.
BRC-113, "
Solenoid and
VDC Change-Over Valve
System"
USV LINE [FR-RL]
[C1148]When the secondary side VDC change-over valve 1 circuit is open
or short-circuit.
HSV LINE [FL-RR]
[C1149]When the primary side VDC change-over valve 2 circuit is open or
short-circuit.
HSV LINE [FR-RL]
[C1150]When the secondary side VDC change-over valve 2 circuit is open
or short-circuit.
PRESS SEN CIRCUIT
[C1142]Pressure sensor open-circuit. When a short-circuit is detected. Or,
when a pressure sensor error is detected.BRC-108, "
Pressure Sen-
sor System"
ST ANG SEN CIRCUIT
[C1143]When the steering angle sensor neutral point has deviated. Or,
when a steering angle sensor error is detected.BRC-110, "Steering Angle
Sensor System"
ST ANG SEN SIGNAL
[C1144]Neutral position correction of steering angle sensor is not finished.BRC-79, "Adjustment of
Steering Angle Sensor
Neutral Position"
YAW RATE SENSOR
[C1145]When a yaw rate sensor error is detected. Or, when the yaw rate
sensor circuit is open. When a short-circuit is detected.BRC-111, "Yaw Rate/Side
G Sensor System"
SIDE G - SEN CIRCUIT
[C1146]When there is an error in the side G sensor. Or, when the side G
sensor circuit is open or short-circuited.BRC-111, "Yaw Rate/Side
G Sensor System"
ENGINE SIGNAL 1
[C1130]
Major engine components malfunctioning.BRC-107, "
Engine Sys-
tem"
ENGINE SIGNAL 2
[C1131]
ENGINE SIGNAL 3
[C1132]
ENGINE SIGNAL 4
[C1133]
ENGINE SIGNAL 5
[C1134]
ENGINE SIGNAL 6
[C1135]
EMERGENCY BRAKE
[C1153]When the VDC/TCS/ABS control unit is malfunctioning (excessive
pressure increase or insufficient pressure increase).BRC-121, "
VDC/TCS/
ABS Control Unit 2"
BR FLUID LEVEL LOW
[C1155]The brake fluid level has dropped. Or, when there is a short to
ground in the circuit between the VDC/TCS/ABS control unit and
the fluid level sensor.BRC-121, "Brake Fluid
Level Switch System"
ST ANG SEN COM CIR
[C1156]CAN communication line or steering angle sensor has generated
an error.BRC-122, "CAN Commu-
nication System"
CAN COMM CIRCUIT
[U1000]When VDC/TCS/ABS control unit is not transmitting or receiving
CAN communication signal for 2 seconds or more.BRC-122, "CAN Commu-
nication System"
(Note 2) Display item Malfunction detecting condition Check item

TROUBLE DIAGNOSIS
BRC-101
[VDC/TCS/ABS]
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Revision: 2006 November2007 350Z
Active TestNFS000IP
CAUTION:

Do not perform active test while driving.

Make sure to completely bleed air from the brake system.

The ABS and brake warning lamps turn on during the active test.
NOTE:

When the active test is conducted while depressing the pedal, the pedal depression amount will change,
but this is normal.

Approximately 10 seconds after the operation is begun, “TEST STOP” will be displayed.
TEST ITEM
Solenoid valve
CAUTION:
The example shown is for the front right wheel. The procedure for the other wheels is the same as
given below.

When conducting an active test of the ABS function, select the main item for each test item. In addition,
when conducting 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” on the display screen. For the ABS solenoid
valve (ACT), touch “UP”, “ACT UP”, “ACT KEEP” and confirm that the 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
ABS Motor
Touch “ON”, “OFF” on the display screen and make sure the ABS motor relay is operating as shown in the
table below.
Correct and Quick DiagnosisNFS0004B
DIAGNOSIS PRECAUTIONS

Before performing the trouble diagnosis, always read the general information (GI) to confirm the general
precautions. Refer to GI-3, "
General Precautions" .

When replacing steering angle sensor, steering system components or suspension system components,
and when adjusting the alignment, be sure to adjust the steering angle sensor neutral position before driv-
ing. Refer to BRC-79, "
Adjustment of Steering Angle Sensor Neutral Position" .

After completing service, always erase the self-diagnosis results. Refer to BRC-96, "HOW TO ERASE
SELF-DIAGNOSIS RESULTS" .
V/R OUTPUT
(ON/OFF)––Valve relay operation signal (ON/OFF) status is
displayed.
M/R OUTPUT
(ON/OFF)––Monitor relay operation signal (ON/OFF) status
is displayed. Item (Unit)SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
OperationABS 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 - RR] OFF OFF OFF OFF ON* OFF
Operation ON OFF
MOTOR RELAY ON OFF
ACTUATOR RLY ON ON

BRC-106
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect wheel sensor connec-
tor E42 (FR - LH), E27 (FR - RH), T5 (RR - RH, LH) and VDC/
TCS/ABS control unit connector B114.
2. Check continuity between terminals. (Also check the continuity
when the steering wheel is turned right and left and when the
sensor harness inside the 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 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).
SFIA3246E
Power system Signal system Ground system
WheelVDC/TCS/ABS
control unitWheel sensorVDC/TCS/ABS
control unitWheel sensorVDC/TCS/ABS
control unit
(signal)VDC/TCS/ABS
control unit
(ground)
Front RH 16 1 15 2 16, 15
28, 29 Front LH 10 1 8 2 10, 8
Rear RH 12 1 11 2 12, 11
Rear LH 14 3 13 4 14, 13
Power system : Continuity should exist.
Signal system : Continuity should exist.
Ground system : Continuity should not exist.
Wheel Wheel sensor Ground Voltage
Front RH
1
— 8 V or more Front LH
Rear RH
Rear LH 3
SFIA3399E

BRC-114
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
3. CHECK SOLENOID INPUT SIGNAL
1. Turn ignition switch OFF and disconnect VDC/TCS/ABS control
unit connector.
2. Check resistance between VDC/TCS/ABS control unit connec-
tor and ground.
OK or NG
OK >> Check the VDC/TCS/ABS control unit power system. Refer to BRC-120, "VDC/TCS/ABS Control
Unit Power and Ground Systems" .
NG >> GO TO 4.
PFIA0287E
VDC/TCS/ABS control unit Ground Resistance value
26
—6.0 – 11 Ω 5
6
53
55
3.0 – 5.0 Ω 3
4
25
49
6.0 – 11 Ω
50
54
3.0 – 5.0 Ω
52