Infiniti G35 (V35) Sedan. Manual - part 255

 

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Infiniti G35 (V35) Sedan. Manual - part 255

 

 

BRC-94

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

Diagnosis Procedure

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CAUTION:

Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed (just place a foot on it).However, this is normal.
• When shifting gears
• When driving on slippery road
• During cornering at high speed
• When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
• When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]

1.

SYMPTOM CHECK 1

Check that there are pedal vibrations when the engine is started.

Do vibrations occur?

YES

>> GO TO 2.

NO

>> Inspect the brake pedal.

2.

SYMPTOM CHECK 2

Check that there are ABS operation noises when the engine is started.

Do the operation noises occur?

YES

>> GO TO 3.

NO

>> Perform self -diagnosis. Refer to 

BRC-26, "CONSULT-III Function (ABS)"

.

3.

SYMPTOM CHECK 3

Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?

YES

>> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,

move it farther away.

NO

>> Normal

VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

BRC-95

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

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VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

Diagnosis Procedure

INFOID:0000000000958632

1.

SYMPTOM CHECK

Check if the vehicle jerks during VDC/TCS/ABS control.
Is the inspection result normal?

YES

>> Normal.

NO

>> GO TO 2.

2.

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnostic of ABS actuator and electric unit (control unit). Refer to 

BRC-26, "CONSULT-III Func-

tion (ABS)"

.

Are self-diagnosis results indicated?

YES

>> Check corresponding items, make repairs, and perform ABS actuator and electric unit (control

unit) self-diagnosis.

NO

>> GO TO 3.

3.

CHECK CONNECTOR

• Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector and check

terminal for deformation, disconnection, looseness, etc.

• Securely connect connectors and perform ABS actuator and electric unit (control unit) self-diagnosis.
Are self-diagnosis results indicated?

YES

>> If poor contact, damage, open or short circuit of connector terminal is found, repair or replace.

NO

>> GO TO 4.

4.

CHECK ECM AND A/T SELF-DIAGNOSIS RESULTS

Perform ECM and A/T self-diagnosis.

Are self-diagnosis results indicated?

YES

>>

Check the corresponding items.

• ECM: Refer to 

EC-113, "CONSULT-III Function"

.

• A/T: Refer to 

TM-114, "CONSULT-III Function (TRANSMISSION)"

.

NO

>> Replace ABS actuator and electric unit (control unit).

BRC-96

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

INFOID:0000000000958633

Symptom

Result

Slight vibrations are felt on the brake pedal and the operation noises occur, when VDC, TCS or ABS is acti-
vated. 

This is a normal condi-
tion due to the VDC, 
TCS or ABS activation.

Stopping distance is longer than that of vehicles without ABS when the vehicle drives on rough, gravel, or 
snow-covered (fresh, deep snow) roads.

The brake pedal moves and generates noises, when TCS or VDC is activated due to rapid acceleration or 
sharp turn.

The brake pedal vibrates and motor operation noises occur from the engine room, after the engine starts and 
just after the vehicle starts.

This is a normal, and it is 
caused by the ABS op-
eration check.

Depending on the road conditions, the driver may experience a sluggish feel. 

This is normal, because 
TCS places the highest 
priority on the optimum 
traction (stability).

TCS may activate momentarily if wheel speed changes when driving over location where friction coefficient 
varies, when downshifting, or when fully depressing accelerator pedal.

The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn ON when the vehicle is 
subject to strong shaking or large vibration, such as when the vehicle is rotating on a turntable or located on 
a ship while the engine is running. 

In this case, restart the 
engine on a normal 
road. If the normal con-
dition is restored, there 
is no malfunction. At 
that time, erase the self-
diagnosis memory.

VDC may not operate normally or the ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp 
may illuminate, when running on a special road that is extremely slanted (e.g. bank in a circuit course). 

A malfunction may occur in the yaw rate/side G sensor system, when the vehicle turns sharply, such as dur-
ing a spin turn, axle turn, or drift driving, while the VDC function is off (VDC OFF indicator lamp illuminated). 

The vehicle speed will not increase even though the accelerator pedal is depressed, when inspecting the 
speedometer on a 2-wheel chassis dynamometer. 

Normal (Deactivate the 
VDC/TCS function be-
fore performing an in-
spection on a chassis 
dynamometer.)

VDC OFF indicator lamp and SLIP indicator lamp may simultaneously turn on when low tire pressure warn-
ing lamp turns on.

This is not a VDC sys-
tem error but results 
from characteristic 
change of tire.

PRECAUTIONS

BRC-97

< PRECAUTION >

[VDC/TCS/ABS]

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PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000000958634

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 performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

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 har-
ness connectors.

Precaution for Brake System

INFOID:0000000000958635

WARNING:

Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
• Only use DOT 3 brake fluid. Refer to 

MA-10, "Fluids and Lubricants"

.

• Never to reuse drained brake fluid.
• Never to spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off

immediately and wash with water if it gets on a painted surface.

• Never to use mineral oils such as gasoline or light oil. They may damage rubber parts and cause improper

operation.

• Always loosen the brake tube flare nut with a flare nut wrench.
• Tighten the brake tube flare nut to the specified torque with a crow-

foot (A) and torque wrench (B).

• Always conform the specified tightening torque when installing the

brake pipes.

• 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.

• Turn the ignition switch OFF and disconnect the ABS actuator and

electric unit (control unit) connector or the battery negative terminal
before performing the work.

Precaution for Brake Control

INFOID:0000000000958636

• Just after starting vehicle after ignition switch ON, brake pedal may vibrate or motor operating noise may be

heard from engine compartment. This is normal condition.

• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer

(what symptoms are present under what conditions) and check for simple causes before starting diagnostic
servicing. Besides electrical system inspection, check brake 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.

• ABS might be out of order or malfunctions by putting a radio (wiring inclusive), an antenna and a lead-in wire

near the control unit.

JPFIA0001ZZ

 

 

 

 

 

 

 

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