Infiniti G35 (V35). Manual — part 236
PREPARATION
BRC-5
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
PREPARATION
PFP:00002
Special Service Tools
NFS0006J
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
NFS0006K
Tool number
(Kent-Moore No.)
Tool name
Description
ST3072000
(J-25405)
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
Installing rear sensor rotor.
ST27863000
(
—
)
Drift
a: 74.5 mm (2.933 in) dia.
b: 62.5 mm (2.461 in) dia.
Installing rear sensor rotor.
KV40104710
(
—
)
Drift
a: 76.3 mm (3.004 in) dia.
b: 67.9 mm (2.673 in) dia.
Installing rear sensor rotor.
ZZC0760D
ZZA0832D
ZZA0832D
Tool name
Description
1. Flare nut crowfoot
a: 10 mm (0.39 in)/ 12 mm (0.47 in)
2. Torque wrench
Installing each brake piping
S-NT360
BRC-6
[VDC/TCS/ABS]
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
PFP:00000
Adjustment of Steering Angle Sensor Neutral Position
NFS0006L
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
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1.
Stop vehicle with front wheels in straight-ahead position.
2.
Perform “CONSULT-II Start Procedure”. Refer to
GI-37, "CONSULT-II Start Procedure"
3.
Touch the CONSULT-II screen in the order of “ABS”, “WORK SUPPORT” and “ST ANG SENSOR
ADJUSTMENT”.
4.
Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5.
After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6.
Turn ignition switch OFF, then turn it ON again.
CAUTION:
Be sure to perform above operation.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STR ANGLE SIG” on CONSULT-II screen. Then
make sure “STR ANGLE SIG” is within 0
±
2.5
°
. If value is more than specification, repeat steps 3 to 7.
9.
Erase memory of VDC/TCS/ABS control unit and ECM. VDC/TCS/ABS control unit: Refer to
10. Turn ignition switch 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 tires to new ones
–
Tire rotation
–
Adjusting wheel alignment
×
SFIA1658E
SYSTEM DESCRIPTION
BRC-7
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
SYSTEM DESCRIPTION
PFP:00000
System Diagram
NFS0006R
Functions
NFS000KA
VDC
●
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.
●
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
●
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.
●
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.
ABS
●
The Anti-Lock Braking System is a function that detects wheel revolution while braking, and it improves
handling stability during sudden braking by electrically preventing 4 wheel lock. Maneuverability is also
improved for avoiding obstacles.
SFIA3273E
BRC-8
[VDC/TCS/ABS]
SYSTEM DESCRIPTION
●
If the electrical system breaks down, then the Fail-Safe function starts, the ABS becomes inoperative, and
the ABS warning lamp turns on.
●
Electrical system diagnosis by CONSULT-II is available.
EBD
●
The Electronic Brake Distribution is a function that detects subtle slippages between the front and rear
wheels during braking, and it improves handling stability by electronically controlling the Brake Fluid Pres-
sure which results in reduced rear wheel slippage.
●
In case of electrical system break down, the Fail-Safe function is activated, the EBD and ABS becomes
inoperative, and the ABS warning lamp and brake warning lamp are turned on.
●
Electrical system diagnosis by CONSULT-II is available.
Operation That Is Not “System Error”
NFS000TC
VDC
●
During VDC operation, body and brake pedal lightly vibrate and mechanical noises may be heard. This is
normal.
●
If vehicle is rotated on turn table, or rolled and rocked on ship, ABS warning lamp, VDC OFF indicator
lamp and SLIP indicator lamp may turn on. In this case, start engine on normal road again. If ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off after restart, it is normal.
●
When starting TCS or VDC under rapid acceleration or hard turn, operating noise by brake pedal is gener-
ated. However, this is not malfunction. This is because TCS and VDC are functioning normally.
●
VDC may not operate normally or ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp
may turn on when driving special roads with extremely steep slant (banks on circuit road and so on.) How-
ever, it is not malfunction when returning to a normal state after restarting the engine. In this case, be sure
to erase the memory of self-diagnosis.
●
Yaw rate/side G sensor malfunction may occur under hard turn like spin turn, rapid acceleration turn, drift
run, etc., when VDC function is OFF (VDC OFF switch is turned on). It is not malfunction if it is possible to
return to a normal position after restarting engine. Then erase the memory of self-diagnosis.
TCS
●
Depending on road circumstances, driver may have a sluggish feel. This is normal, because optimum
traction has highest priority under TCS operation.
●
When vehicle is passing through a road where surface friction varies, downshifting or depressing acceler-
ator pedal fully may activate TCS temporarily.
ABS
●
When starting engine or just after starting vehicle, brake pedal may vibrate or the motor operating noise
may be heard from engine room. This is a normal states of the operation check.
●
During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
●
Stopping distance may be longer than that of vehicle without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
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