WHEEL SENSORS
BRC-73
[TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
WHEEL SENSORSPFP:47910
Removal and InstallationNFS0003N
COMPONENTS
REMOVAL
Pay attention to the following when removing sensor.
CAUTION:
As much as possible, avoid rotating sensor when removing it. Pull sensors out without pulling on
sensor harness.
Take care to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before
removing front or rear wheel hub. This is to avoid damage to sensor wiring and loss of sensor
function.
INSTALLATION
Pay attention to the following when installing sensor. Tighten installation bolts and nuts to specified torques.
When installing, check that there is no foreign material such as iron chips on pick-up and mounting hole of
the sensor. Check that no foreign material has been caught in the sensor rotor motor. Remove any foreign
material and clean the mount.
When installing front sensor, be sure to press rubber grommets in until they lock at the three locations
shown in diagram (2 at shock absorbers and 1 at body panel). When installed, harness must not be
twisted. White line on harness (shaded part) must be visible from front.
PFIA0241E
BRC-76
[VDC/TCS/ABS]
PRECAUTIONS
Revision: 2006 November2007 350Z
[VDC/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NFS000TP
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNFS0003R
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
Precautions for Brake SystemNFS0003S
Recommended fluid is brake fluid “DOT 3”. Refer to MA-11, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
Never reuse drained brake fluid.
Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.
Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
Use a flare nut wrench when removing flare nuts, and use a flare
nut crowfoot and torque wrench when tighten brake tube flare
nuts.
When installing brake tubes, be sure to check torque.
Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.
Before working, turn ignition switch OFF and disconnect electri-
cal connector of VDC/TCS/ABS control unit or the battery nega-
tive terminal.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
SBR686C
BRC-78
[VDC/TCS/ABS]
PREPARATION
Revision: 2006 November2007 350Z
PREPARATIONPFP:00002
Special Service ToolsNFS0003U
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNFS0003V
Tool number
(Kent-Moore No.)
Tool nameDescription
ST30720000
(J-25405)
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
Installation rear sensor rotor ST27863000
(—)
Drift
a: 74.5 mm (2.933 in) dia.
b: 62.5 mm (2.461 in) dia.
KV40104710
(—)
a: 76.3 mm (3.004 in) dia.
b: 67.9 mm (2.673 in) dia.
ZZA0701D
ZZA0832D
ZZA0832D
Tool nameDescription
1. Flare nut crowfoot
a: 10mm (0.39 in) / 12mm (0.47 in)
2. Torque wrenchinstalling brake tube
S-NT360
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
TROUBLE DIAGNOSIS
BRC-103
[VDC/TCS/ABS]
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BRC
Revision: 2006 November2007 350Z
ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP AND BRAKE
WARNING LAMP ON/OFF TIMING
×: 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).
Basic InspectionNFS0004C
BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill the brake fluid.
2. Check brake tubes or hoses and around VDC actuator for leaks. If there is leaking or oozing fluid, check
the following items.
If VDC actuator connection is loose, tighten the piping to the specified torque and re-conduct the leak
inspection to make sure there are no leaks.
If there is damage to the connection flare nut or VDC actuator screw, replace the damaged part and re-
conduct the leak inspection to make sure there are no leaks.
When there is fluid leaking or oozing from a part other than VDC actuator connection, if the 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 VDC actuator, if the 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 VDC actuator body.
CAUTION:
VDC actuator cannot be disassembled.
3. Check the brake pad degree of wear. Refer to BR-26, "
PAD WEAR INSPECTION" in “Front Disc Brake”
and BR-39, "
PAD WEAR INSPECTION" in “Rear Disc Brake”.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cable and ground connection are not loose. In addition, check
the battery voltage to make sure it has not dropped.
ABS WARNING LAMP, VDC OFF INDICATOR LAMP, SLIP INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, VDC OFF indicator lamp (when VDC OFF switch is OFF), and SLIP indica-
tor lamp turns ON approximately 1 second when the ignition switch is turned ON. If they do not, check the
VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-122, "
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 BRC-122, "
CAN Communica-
tion System" .
ConditionABS warning
lampVDC OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp (Note 1)Remarks
Ignition switch OFF. — — — — —
Approx. Within 1 seconds
after ignition switch is turned
ON.×××× (Note 1) —
Approx. 1 seconds after igni-
tion switch ON.———× (Note 1)Turns OFF 2 seconds
after engine starts.
VDC OFF switch is turned
ON. (VDC function is OFF.)—×—— —
VDC/TCS/ABS error.××——There is a malfunction
in VDC/TCS/ABS con-
trol unit, SLIP indicator
lamp turns off (when the
power supply or ground
circuits return an error).
×××——
When VDC/TCS is not func-
tioning normally.—××——
EBD error.××××—
BRC-128
[VDC/TCS/ABS]
WHEEL SENSORS
Revision: 2006 November2007 350Z
WHEEL SENSORSPFP:47910
Removal and InstallationNFS0004Y
COMPONENTS
REMOVAL
Pay attention to the following when removing sensor.
CAUTION:
As much as possible, avoid rotating sensor when removing it. Pull sensors out without pulling on
sensor harness.
Take care to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before
removing front or rear wheel hub. This is to avoid damage to sensor wiring and loss of sensor
function.
INSTALLATION
Pay attention to the following when installing sensor. Tighten installation bolts and nuts to specified torques.
When installing, check that there is no foreign material such as iron chips on pick-up and mounting hole of
the sensor. Check that no foreign material has been caught in the sensor rotor motor. Remove any foreign
material and clean the mount.
When installing front sensor, be sure to press rubber grommets in until they lock at the three locations
shown in diagram (2 at shock absorbers and 1 at body panel). When installed, harness must not be
twisted. White line on harness (shaded part) must be visible from front.
PFIA0241E
VDC/TCS/ABS CONTROL UNIT
BRC-129
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
Revision: 2006 November2007 350Z
VDC/TCS/ABS CONTROL UNITPFP:47660
Removal and InstallationNFS0004Z
REMOVAL
1. Remove dash side finisher (RH). Refer to IP-12, "(C) Dash Side
Finisher (RH/LH)" .
2. Remove VDC/TCS/ABS control unit bolts.
3. Remove VDC/TCS/ABS control unit.
INSTALLATION
Installation in the reverse order of removal.
When installing the VDC/TCS/ABS control unit, tighten bolts to the specified torque.
CAUTION:
When replacing VDC/TCS/ABS control unit, make sure to adjust neutral position of steering angle
sensor. Refer to BRC-79, "
Adjustment of Steering Angle Sensor Neutral Position" .
SFIA3385E
VDC/TCS/ABS control unit bolts : 8.3 N·m (0.85 kg−m, 73 in−lb)