Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti G35 2006-2007 Approved G35-V35-Coupe-2007 brc
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BRAKE CONTROL SYSTEM
F BRAKES
A
B
SECTION
BRAKE CONTROL SYSTEM C
D
E
CONTENTS
VDC/TCS/ABS Control Unit Input/Output Signal Standard ............ 23 . BRC
REFERENCE VALUE FROM CONSULT-II ........ 23 .
PRECAUTIONS ......................................................... 3 . CONSULT-II Functions (ABS) ............................... 25 .
Precautions for Supplemental Restraint System CONSULT-II MAIN FUNCTION .......................... 25 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- CONSULT-II SETTING PROCEDURE .................. 25 .
SIONER" ................................................................. 3
. Self-Diagnosis ....................................................... 25
.
Precautions for Battery Service ............................... 3 . DESCRIPTION ................................................... 25 .
Precautions for Brake System ................................. 3 . H
OPERATION PROCEDURE ............................... 25 .
Precautions for Brake Control ................................. 4 . ERASE MEMORY .............................................. 26 .
PREPARATION .......................................................... 5 . DISPLAY ITEM LIST .......................................... 26 .
Special Service Tools .............................................. 5 . Data Monitor .......................................................... 28
. I
Commercial Service Tools ....................................... 5 . OPERATION PROCEDURE ............................... 28 .
ON-VEHICLE SERVICE ............................................ 6 . DISPLAY ITEM LIST .......................................... 28 .
Adjustment of Steering Angle Sensor Neutral Posi- Active Test ............................................................. 30
. J
tion .......................................................................... 6
. OPERATION PROCEDURE ............................... 30 .
SYSTEM DESCRIPTION ........................................... 7 . TEST ITEM ......................................................... 31
.
System Diagram ...................................................... 7 . For Fast and Accurate Diagnosis .......................... 32 .
Functions ................................................................. 7
. K
PRECAUTIONS FOR DIAGNOSIS .................... 32 .
VDC ...................................................................... 7
. Basic Inspection .................................................... 33
.
TCS ...................................................................... 7
. BRAKE FLUID LEVEL AND LEAK INSPECTION 33 ...
ABS ...................................................................... 7
. INSPECTION FOR LOOSENESS OF POWER L
EBD ...................................................................... 8
. SYSTEM TERMINALS ....................................... 33 .
Operation That Is Not "System Error" ..................... 8 . INSPECTION OF ABS WARNING LAMP,
VDC ...................................................................... 8
. VDC OFF INDICATOR LAMP, SLIP INDICATOR M
TCS ...................................................................... 8
. LAMP AND BRAKE WARNING LAMP ............... 33 .
ABS ...................................................................... 8
. TROUBLE DIAGNOSIS FOR SYSTEM ................... 35 .
Hydraulic Pressure Control System Diagram .......... 9 . Wheel Sensor System ........................................... 35 .
CAN Communication ............................................... 9 . INSPECTION PROCEDURE ............................. 35 .
SYSTEM DESCRIPTION ..................................... 9 . Engine System ...................................................... 37
.
TROUBLE DIAGNOSIS ........................................... 10 . INSPECTION PROCEDURE ............................. 37 .
Fail-Safe Function ................................................. 10 . VDC/TCS/ABS Control Unit 1 ................................ 37 .
VDC/TCS SYSTEM ............................................ 10 . INSPECTION PROCEDURE ............................. 37 .
ABS, EBD SYSTEM ........................................... 10 . Pressure Sensor System ....................................... 38 .
How to Perform Trouble Diagnoses ...................... 10 . INSPECTION PROCEDURE ............................. 38 .
BASIC CONCEPT .............................................. 10 . Steering Angle Sensor System .............................. 40 .
DIAGNOSIS FLOW CHART ...............................11 . INSPECTION PROCEDURE ............................. 40 .
ASKING COMPLAINTS ..................................... 12 . Yaw Rate/Side G Sensor System .......................... 41 .
EXAMPLE OF DIAGNOSIS SHEET .................. 12 . INSPECTION PROCEDURE ............................. 41 .
Component Parts Location .................................... 13 . Solenoid and VDC Change-Over Valve System .... 43 .
Schematic ............................................................. 14. INSPECTION PROCEDURE ............................. 43 .
Wiring Diagram -- VDC -- .................................... 15 .
Revision: 2006 August BRC-1 2007 G35 Coupe
Actuator Motor and Motor Relay System ............... 44 . The Braking Distance Is Long ................................55 .
INSPECTION PROCEDURE .............................. 44 . The ABS Function Does Not Operate ....................55 .
Actuator Relay System .......................................... 46 . Pedal Vibration or ABS Operation Sound Occurs ...55
INSPECTION PROCEDURE .............................. 46 . Vehicle Jerks During VDC/TCS/ABS Control .........56 .
Stop Lamp Switch System ..................................... 47 . WHEEL SENSOR .....................................................58 .
INSPECTION PROCEDURE .............................. 47 . Removal and Installation ........................................58 .
VDC/TCS/ABS Control Unit Power and Ground REMOVAL ...........................................................58
.
System ................................................................... 48
. INSTALLATION ...................................................58.
INSPECTION PROCEDURE .............................. 48 . VDC/TCS/ABS CONTROL UNIT .............................59 .
When "SHIFT POSITION ERROR" Appears in Self- Removal and Installation ........................................59 .
Diagnostic results Display (A/T Models) ................ 50 . REMOVAL ...........................................................59
.
INSPECTION PROCEDURE .............................. 50 . INSTALLATION ...................................................59.
VDC/TCS/ABS Control Unit 2 ................................ 50 . SENSOR ROTOR .....................................................60 .
INSPECTION PROCEDURE .............................. 50 . Removal and Installation ........................................60 .
Brake Fluid Level Switch System .......................... 51 . REMOVAL ...........................................................60
.
INSPECTION PROCEDURE .............................. 51 . INSTALLATION ...................................................60.
RAS Control Unit System (With RAS) ................... 51 . VDC/TCS/ABS ACTUATOR .....................................61 .
INSPECTION PROCEDURE .............................. 51 . Removal and Installation ........................................61 .
CAN Communication Circuit .................................. 52 . G-SENSOR ...............................................................62
.
INSPECTION PROCEDURE .............................. 52 . Removal and Installation ........................................62 .
Component Inspection ........................................... 52 . REMOVAL ...........................................................62
.
VDC OFF SWITCH ............................................. 52 . INSTALLATION ...................................................62.
ABS MOTOR RELAY AND ACTUATOR RELAY... 52 STEERING ANGLE SENSOR ..................................63 .
VDC/TCS/ABS ACTUATOR ............................... 53 . Removal and Installation ........................................63 .
TROUBLE DIAGNOSIS FOR SYMPTOMS ............. 54 . REMOVAL ...........................................................63
.
Excessive ABS Function Operation Frequency ..... 54 . INSTALLATION ...................................................63.
Unexpected Pedal Reaction .................................. 54 .
Revision: 2006 August BRC-2 2007 G35 Coupe
PRECAUTIONS
[VDC/TCS/ABS]
PRECAUTIONS
[VDC/TCS/ABS] PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NFS000KN
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
q 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. E
q 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. BRC
q 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.
G
Precautions for Battery Service NFS000KO
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 H
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.
I
Precautions for Brake System NFS0006H
q Recommended fluid is brake fluid "DOT 3". Refer to MA-10, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" . J
q Do not reuse drained brake fluid.
q Be careful not to splash brake fluid on painted surface of body. If brake fluid is splashed on painted sur-
faces of body immediately wipe it off with cloth and then wash it away with water. K
q Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.
q Use a flare nut wrench when removing flare nuts, and use a flare L
nut crowfoot and torque wrench when tighten brake tube flare
nuts.
q Brake system is an important safety part. If a brake fluid leak is
M
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.
q Before working, turn ignition switch OFF and disconnect con-
nectors of VDC/TCS/ABS control unit or the battery cable from
the negative terminal.
q When installing brake piping, be sure to check torque.
SBR686C
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Revision: 2006 August BRC-3 2007 G35 Coupe
PRECAUTIONS
[VDC/TCS/ABS]
Precautions for Brake Control NFS0006I
q During ABS operation, brake pedal lightly vibrates and a mechanical sound may be heard. This is normal.
q Just after starting vehicle after turning ignition switch ON, brake pedal may vibrate or motor operating
sound may be heard from engine compartment. This is a normal condition of operation check.
q Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
q 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 brake booster operation, brake fluid
level, and fluid leaks.
q 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.
q If there is a radio, antenna, or antenna lead-in wire (including wiring) near VDC/TCS/ABS control unit,
ABS function may have a malfunction or error.
q If aftermarket parts (car stereo, CD player, etc.) Have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
q If the following components are replaced with non-genuine components or converted, VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorber, strut, spring, bush, etc.), Tires, wheels (exclude specified size),
components related to brake (pad, rotor, caliper, etc.), Components related to engine (Muffler, ECM, etc.),
Components related to body reinforcement (roll bar, Tower bar, etc.).
q Driving in the condition of breakage or excessive wear of suspension, tires or components related to
brakes may cause VDC OFF indicator lamp and SLIP indicator lamp to turn on, and the VDC system
may not operate properly.
q When the TCS or VDC is activated by sudden acceleration or sudden turn, some sound may occur if
brake pedal is used. The sound is a result of the normal operation of the TCS and VDC.
q When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as
sharp carves on a freeway), the VDC may not operate normally, or VDC OFF indicator lamp or VDC OFF
indicator lamp and SLIP indicator lamp may turn on. However, this is not a malfunction, if normal opera-
tion can be resumed after restarting engine.
q Sudden turns (such as spin turns, acceleration turns), drifting, etc. When VDC function is OFF (VDC OFF
switch ON) may cause yaw rate/side G sensor system to indicate a malfunction. However, this is not a
malfunction if normal operation can be resumed after restarting engine. Then erase memory of self-diag-
nosis.
Revision: 2006 August BRC-4 2007 G35 Coupe
PREPARATION
[VDC/TCS/ABS]
PREPARATION PFP:00002
A
Special Service Tools NFS0006J
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
B
(Kent-Moore No.) Description
Tool name
C
ST3072000
(J-25405)
Drift Installing rear sensor rotor. D
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
ZZC0760D
E
ST27863000
( -- ) BRC
Drift Installing rear sensor rotor.
a: 74.5 mm (2.933 in) dia.
b: 62.5 mm (2.461 in) dia.
G
ZZA0832D
KV40104710 H
( -- )
Drift Installing rear sensor rotor.
a: 76.3 mm (3.004 in) dia.
b: 67.9 mm (2.673 in) dia. I
ZZA0832D
Commercial Service Tools NFS0006K
J
Tool name Description
K
1. Flare nut crowfoot
a: 10 mm (0.39 in)/ 12 mm (0.47 in) Installing each brake piping
2. Torque wrench L
S-NT360
M
Revision: 2006 August BRC-5 2007 G35 Coupe
ON-VEHICLE SERVICE
[VDC/TCS/ABS]
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.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing VDC/TCS/ABS control unit -
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