Infiniti F50. Manual — part 265
PRECAUTIONS
BRC-3
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PRECAUTIONS
PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS00285
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 harness connec-
tors.
Precautions for Brake System
EFS00209
●
Recommended fluid is brake fluid “DOT 3”.
●
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 to clean. They will ruin rubber parts and cause
improper operation.
●
Using a flare nut torque wrench, securely tighten brake tube
flare nuts.
●
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 connectors of VDC actuator and control module or battery
terminals.
●
When installing brake piping, be sure to check torque.
Precautions for Brake Control
EFS0020A
●
During ABS, TCS and VDC operations of sudden deceleration and turn, brake pedal lightly vibrates and a
mechanical noise may be heard. This is normal.
●
Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is a normal status of operation check.
●
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
●
When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check booster operation, brake fluid level, and
oil leaks.
●
If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
●
If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function
may have a malfunction or error.
SBR686C
BRC-4
PRECAUTIONS
●
If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
●
If non-standard suspension parts (shock absorber, strut, spring, bushing, etc.) and reinforcements (roll
bar, tower bar, etc.) are attached, or if suspension parts deteriorate significantly, VDC may not operate
normally and VDC warning lamp may turn on.
●
If non-standard engine components (muffler, etc.) are attached, VDC may not operate normally and VDC
warning lamp may turn on.
●
When driving on a steep slope (as a bank), VDC may not operate normally and VDC warning lamp may
turn on. In this case, start engine to resume the normal screen. This is normal.
Diagnosis Precaution
EFS0020B
CAN SYSTEM
●
Do not apply voltage of 7.0V or higher to terminal to be measured.
●
Maximum open terminal voltage of tester in use shall be 7.0V or lower.
●
Before checking harnesses, turn ignition switch to OFF and disconnect battery negative cable.
Precaution for Harness Repair
EFS0020C
CAN SYSTEM
●
Area to be repaired shall be soldered, and wrapped with a tape
(be sure that fraying of twisted wire shall be within 110 mm 4.33
in)).
●
Do not make a bypass connection to repaired area. (If it is done,
branch part will be removed and characteristics of twisted wire
will be lost.)
PKIA0306E
PKIA0307E
PREPARATION
BRC-5
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PREPARATION
PFP:00002
Special Service Tools
EFS00288
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
EFS0020D
Tool number
(Kent-Moore No.)
Tool name
Description
ST3072 000
(J25405)
Drift
a: 76.5 mm (3.012 in) dia.
b: 55.0 mm (2.17 in) dia.
Installing rear sensor rotor.
ST2786 3000
(—)
Drift
Installing rear sensor rotor.
KV401 04710
(—)
Drift
Installing rear sensor rotor.
ZZC0760D
ZZC1307D
ZZC1082D
Tool name
Description
1.Flare nut crowfoot
a:10 mm (0.39 in)
2.Torque wrench
Removing and installing each brake piping
S-NT360
BRC-6
ON-VEHICLE SERVICE
ON-VEHICLE SERVICE
PFP:00000
Adjustment of Steering Angle Sensor Neutral Position
EFS0020E
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.
Connect CONSULT-II and CONSULT-II converter to data link
connector on vehicle, and turn ignition switch ON (do not start
engine).
3.
Touch “VDC”, “WORK SUPPORT” and “ST ANG SEN ADJUST-
MENT” on CONSULT-II screen in this order.
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 carry out above operation.
7.
Run vehicle with front wheels in straight-ahead position, then
stop.
8.
Select “DATA MONITOR”, “ECU INPUT SIGNALS”, and “STEERING ANGLE SIGNAL” on CONSULT-II
screen. Then check that “STEERING ANGLE SIGNAL” is within 0
±
2.5 deg. If value is more than specifi-
cation, repeat steps 1 to 5.
9.
Erase memory of VDC/TCS/ABS control unit and ECM.
10. 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
×
Removing/Installing the same tire to the same position
–
Change 4 tires to new ones
–
Change some of 4 tires to new ones (not 4 tires)
–
Tire rotation
–
Adjusting wheel alignment
×
PBIB0196E
SFIA0793E
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