stop start NISSAN 350Z 2007 Z33 Brake Control System User Guide

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×

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-102
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z

When inspection of the continuity or voltage between units is performed, check connector terminals for
disconnection, looseness, bend, or collapse. If any non-standard condition is detected, repair or replace
applicable part.

Intermittent errors may be caused by a poor connection in the harness, connector, or terminal. Move har-
nesses, harness connectors, or terminals by hand to make sure all connections are solid and undamaged.

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

VDC/TCS/ABS is a system that uses electronic control to perform brake control and engine power control.
Therefore, phenomena like those shown in the following table may occur, but this is because the system is
working normally.
Symptom Symptom description Result
Motor operation noiseThe is a motor operation sound inside VDC/TCS/ABS actuator, and some-
times there is a slight sound when VDC, TCS, or ABS operates.
Normal
Just after the engine starts, the motor operating noise may be heard. This
is a normal status of the system operation check.
System operation check noiseWhen the engine is started, you may barely be able to hear a slight thud-
ding sound from the engine room, but this sound is made by the system
operation check and is normal.Normal
TCS operation
(SLIP indicator lamp ON)TCS may be activated any time the vehicle suddenly accelerates, suddenly
downshifts, or is driven on a road with a varying surface friction coefficient.
Normal
Cancel the VDC/TCS
function for the
inspection on a chas-
sis dynamometer. When inspecting the speedometer, etc., press VDC OFF switch to turn off
TCS function before conducting the work.
When accelerator pedal is depressed on a chassis dynamometer (front
wheel fixing type), the vehicle speed will not increase. This is normal,
because TCS is activated by the stationary front wheels. The warning lamp
may also turn on to show “sensor system error” in this case. This is not a
malfunction either, because the stationary front wheels are detected.
Restart engine, and drive the vehicle at 30 km/h (19 MPH) or higher to
check that the warning lamp no longer turns on.
ABS operation
(longer stopping distance)Stopping distance may be longer for vehicles with ABS when the vehicle
drives on rough or snow-covered roads. Use lower speeds when driving on
these kinds of roads.Normal
Sluggish feelDepending on road circumstances, the driver may have a sluggish feel.
This is normal, because under TCS operation optimum traction has the
highest priority (safety first). Sometimes the driver has a slight sluggish feel
in response to substantial accelerator pedal operation.Normal

BRC-108
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 November2007 350Z
Pressure Sensor SystemNFS0004G
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK STOP LAMP SWITCH CONNECTOR
1. Disconnect stop lamp switch connector and VDC/TCS/ABS control unit connector and check the termi-
nals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the termi-
nal.
2. Securely reconnect the connectors.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, then perform self-diagnosis again.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF and disconnect stop lamp switch con-
nector E111.
2. Disconnect stop lamp switch connector
3. Check continuity between stop lamp switch connector terminal 3
and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace stop lamp switch. Refer to BR-8, "
Components" .
Self-diagnosis results
PRESS SEN CIRCUIT
Stop lamp switch Condition Continuity
3 – 4Release stop lamp switch
(When brake pedal is depressed.)Ye s
Push stop lamp switch
(When brake pedal is released.)No
SFIA3390E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-119
[VDC/TCS/ABS]
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Revision: 2006 November2007 350Z
Stop Lamp Switch SystemNFS0004M
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
Check self-diagnosis results.
Is the above displayed in the self-diagnosis display items?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Disconnect stop lamp switch connector and VDC/TCS/ABS control unit connector and check the termi-
nals for deformation, disconnection, looseness, and so on. If there is an error, repair or replace the termi-
nal.
2. Securely reconnect the connectors.
3. Start engine.
4. Repeat pumping brake pedal carefully several times, then perform self-diagnosis again.
Is the result of self-diagnosis normal?
YES >> The connector terminal contact is loose, damaged, open or shorted.
NO >> GO TO 3.
3. CHECK STOP LAMP SWITCH
1. Turn ignition switch OFF and disconnect stop lamp switch con-
nector E111.
2. Disconnect stop lamp switch connector
3. Check continuity between stop lamp switch connector terminal 3
and 4.
OK or NG
OK >> GO TO 4.
NG >> Replace stop lamp switch. Refer to BR-8, "
Components" .
Self-diagnosis results
STOP LAMP SW
Stop lamp switch Condition Continuity
3 – 4Release stop lamp switch
(When brake pedal is depressed.)Ye s
Push stop lamp switch
(When brake pedal is released.)No
SFIA3390E

TROUBLE DIAGNOSIS FOR SYMPTOMS
BRC-125
[VDC/TCS/ABS]
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Revision: 2006 November2007 350Z
The Braking Distance Is LongNFS0004U
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 VDC/TCS/ABS control unit connector to deactivate ABS. In this condition, check stopping dis-
tance. After inspection, connect connector.
OK or NG
OK >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-124, "Excessive ABS Func-
tion Operation Frequency" .
NG >>

Bleed air from the brake piping.

Check brake system.
The ABS Function Does Not OperateNFS0004V
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 the warning lamp turns off approximately 1 second after the ignition switch is turned on or when
driving.
OK or NG
OK >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-124, "Excessive ABS Func-
tion Operation Frequency" .
NG >> Perform self-diagnosis. Refer to BRC-96, "
OPERATION PROCEDURE" .
Pedal Vibration or ABS Operation Sound OccursNFS0004W
CAUTION:
Under the following conditions, when brake pedal is lightly depressed (just place a foot on it), ABS is
activated and vibration is felt. However, this is normal.

When shifting gears

When driving on slippery road

During cornering at high speed

When passing over bumps or grooves [50 mm (1.97 in) or more]

When pulling away just after starting engine (at approximately 10 km/h (6MPH) or higher)
1. SYMPTOM CHECK 1
Check if pedal vibration or operation sound occurs when the engine is started.
Does the symptom occur?
YES >> GO TO 2.
NO >> Perform self-diagnosis. Refer to BRC-96, "
OPERATION PROCEDURE" .
2. SYMPTOM CHECK 2
Check symptom when electrical component (headlamps, etc.) switches are operated.
Does the symptom occur when the electrical component (head lamp, etc.) switches are operated?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit (or its wir-
ing), and if there is, move it farther away.
NO >> GO TO 3. CHECK WHEEL SENSOR AND SENSOR ROTOR in BRC-124, "
Excessive ABS Func-
tion Operation Frequency" .