Infiniti I35 (A33). Manual - part 127

Adjustment of Neutral Position of Steering
Angle Sensor

NHBR0250

After replacing the VDC/TCS/ABS control unit, steering angle
sensor, steering components, suspension components, or
after adjusting the wheel alignment, make sure to adjust the
neutral position of the steering angle sensor before running the
vehicle.

CAUTION:

To adjust the neutral position of the steering angle sensor,
make sure to use CONSULT-II.
(Adjustment cannot be done other than CONSULT-II.)
1.

Stop the vehicle with the front wheels in the straight-ahead
position.

SBR535E

Connect CONSULT-II to data link connector on the vehicle,
and turn the ignition switch to ON position (engine not running).

SFIA2436E

SFIA0370E

Touch “START”, “ABS”, “WORK SUPPORT” and “ST ANGLE
SENSOR ADJUSTMENT” on the CONSULT-II screen in this
order.

IDX

ON-VEHICLE SERVICE

VDC

Adjustment of Neutral Position of Steering Angle Sensor

BR-93

SFIA0371E

Touch “START”.

CAUTION:

Do not touch the steering wheel while adjusting the steering
angle sensor.
5.

After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)

Turn the ignition switch OFF, then turn it ON again.

CAUTION:

Make sure to carry out the above operation.
7.

Run the vehicle with the front wheels in the straight-ahead
position, then stop.

SFIA2436E

Select “DATA MONITOR”, “ECU INPUT SIGNALS” on the
CONSULT-II screen. Then check that the “ST ANGLE SIG” is
within 0

2.5 deg. If the value is more than the specification,

repeat steps 1 to 5.

Erase the memory of VDC/TCS/ABS control unit and ECM.

10. Turn the ignition switch OFF.

ON-VEHICLE SERVICE

VDC

Adjustment of Neutral Position of Steering Angle Sensor (Cont’d)

BR-94

NHBR0256

Fail-safe

NHBR0256S01

ABS SYSTEM

NHBR0256S0101

If a malfunction occurs in the electrical system, the ABS warning
lamp, VDC OFF indicator lamp, and SLIP indicator lamp in the
meter will turn ON. In this condition, the VDC/TCS/ABS and EBD
become one of the following conditions by the fail-safe function.
1.

Only EBD operates. The same condition as that of models
without VDC/TCS/ABS

VDC/TCS/ABS and EBD do not operate. Only normal brake
operates on 4 wheels.

NOTE:
In the step 1 shown above, the self-diagnosis is carried out at the
ignition switch is turned ON and when the vehicle initial starts. ABS
self-diagnosis noise may be heard as usual.

VDC/TCS SYSTEM

NHBR0256S0102

If a malfunction occurs in the electrical system, the VDC OFF indi-
cator lamp and SLIP indicator lamp in the meter turn on. In this
condition, VDC/TCS will be deactivated and it becomes equal to
that of models without VDC/TCS. However, ABS is controlled nor-
mally.
If a malfunction occurs in the throttle control system, VDC/TCS
control does not operate. Only ABS control operates normally.

CAUTION:

If the fail-safe function operates, carry out the self-diagnosis
for VDC/TCS/ABS control system.

IDX

GENERAL INFORMATION

VDC

Fail-safe

BR-95

Hydraulic Circuit

NHBR0256S02

SBR259F

ABS Functions

NHBR0256S03

In cases of braking suddenly or braking on slippery road (ice
road), ABS functions prevent wheels from lock, improve the
stability in sudden braking, and make efficient avoidance of
obstacles with steering manipulation by detecting 4-wheel
speed and controlling 4-wheel brake fluid pressure.

EBD is integrated in VDC/TCS/ABS system.

CAUTION:

During ABS operation, the brake pedal lightly vibrates and
its mechanical noise may be heard. This is a normal con-
dition.

When starting the engine, or just after starting the vehicle,
the brake pedal may vibrate or the motor operating noise
may be heard from the engine compartment. This is a
normal status of the operation check.

The stopping distance may be longer than that of vehicles
without ABS when the vehicle drives on rough, gravel, or
snowy (fresh deep snow) road.

GENERAL INFORMATION

VDC

Hydraulic Circuit

BR-96

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