Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Murano 2003-2007.2009 Approved Nissan Murano 2007 BRC
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BRAKE CONTROL SYSTEM
F BRAKES
A
B
SECTION
BRAKE CONTROL SYSTEM C
D
E
CONTENTS
ABS DISPLAY ITEM LIST .......................................... 21 . BRC
ERASE MEMORY .............................................. 22 .
PRECAUTIONS ......................................................... 4 . Data Monitor .......................................................... 22
.
Precautions for Supplemental Restraint System OPERATION PROCEDURE ............................... 22 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DISPLAY ITEM LIST .......................................... 22 .
SIONER" ................................................................. 4
. Active Test ............................................................. 24
.
Precautions for Brake System ................................. 4 . OPERATION PROCEDURE ............................... 24 .
Precautions for Brake Control ................................. 4 . H
TEST ITEM ......................................................... 24
.
PREPARATION .......................................................... 6. ABS Actuator and Electric Unit (Control Unit) Part
Commercial Service Tools ....................................... 6 . Number .................................................................. 25
.
SYSTEM DESCRIPTION ........................................... 7 . Trouble Diagnosis Chart for Symptoms ................. 25 . I
System Diagram ...................................................... 7. For Fast and Accurate Diagnosis .......................... 26 .
COMPONENTS FUNCTION DESCRIPTION ...... 7 . PRECAUTIONS FOR DIAGNOSIS .................... 26 .
Function .................................................................. 7
. Basic Inspection .................................................... 26
. J
ABS ...................................................................... 7
. BRAKE FLUID LEVEL, LEAKS, AND BRAKE
EBD ...................................................................... 8
. PAD .................................................................... 26
.
Hydraulic Circuit Diagram ....................................... 8 . POWER SYSTEM TERMINAL LOOSENESS
HYDRAULIC COMPONENTS FUNCTION K
AND BATTERY ................................................... 26 .
DESCRIPTION ..................................................... 9 . ABS WARNING LAMP AND BRAKE WARNING
CAN Communication ............................................... 9 . LAMP .................................................................. 27
.
SYSTEM DESCRIPTION ..................................... 9 . TROUBLE DIAGNOSIS FOR SYSTEM ................... 28 . L
TROUBLE DIAGNOSIS ........................................... 10 . Wheel Sensor ........................................................ 28
.
Fail-Safe Function ................................................. 10. INSPECTION PROCEDURE ............................. 28 .
ABS, EBD SYSTEM ........................................... 10 . ABS Actuator and Electric Unit (Control Unit) ....... 30 . M
How to Perform Trouble Diagnosis for Quick and INSPECTION PROCEDURE ............................. 30 .
Accurate Repair .................................................... 10. Solenoid Valve Circuit ............................................ 30 .
INTRODUCTION ................................................ 10 . INSPECTION PROCEDURE ............................. 30 .
DIAGNOSIS FLOW CHART ...............................11 . CAN Communication Circuit .................................. 31 .
ASKING COMPLAINTS ..................................... 12 . INSPECTION PROCEDURE ............................. 31 .
EXAMPLE OF DIAGNOSIS SHEET .................. 12 . Actuator Motor, Motor Relay, and Circuit ............... 32 .
Component Installation Location ........................... 13 . INSPECTION PROCEDURE ............................. 32 .
Schematic ............................................................. 14
. ABS Actuator and Electric Unit (Control Unit) Power
Wiring Diagram -- ABS -- .................................... 15 . Supply and Ground Circuit .................................... 33 .
Control Unit Input/Output Signal Standard ............ 19 . INSPECTION PROCEDURE ............................. 33 .
REFERENCE VALUE FROM CONSULT-II ........ 19 . G Sensor System .................................................. 34 .
CONSULT- II Functions (ABS) .............................. 20 . INSPECTION PROCEDURE ............................. 34 .
CONSULT-II MAIN FUNCTION .......................... 20 . Stop Lamp Switch .................................................. 34 .
CONSULT-II SETTING PROCEDURE ............... 20 . INSPECTION PROCEDURE ............................. 34 .
Self-Diagnosis ....................................................... 20
. TROUBLE DIAGNOSIS FOR SYMPTOMS ............. 36 .
DESCRIPTION ................................................... 20 . Excessive ABS Function Operation Frequency ..... 36 .
OPERATION PROCEDURE .............................. 20 .
Revision: 2006 July BRC-1 2007 Murano
Unexpected Pedal Reaction .................................. 36 . CONSULT-II MAIN FUNCTION ..........................64 .
The Braking Distance is Long ................................ 37. CONSULT-II SETTING PROCEDURE ...............64 .
ABS Function Dose Not Operate ........................... 37 . Self-diagnosis ........................................................65
.
Pedal Vibration or ABS Operation Sound Occurs... 37 DESCRIPTION ...................................................65 .
ABS Warning Lamp Indication is Not Normal ........ 38 . OPERATION PROCEDURE ...............................65 .
WHEEL SENSORS .................................................. 40
. DISPLAY ITEM LIST ...........................................65 .
Removal and Installation ....................................... 40
. ERASE MEMORY ...............................................67 .
REMOVAL .......................................................... 40
. Data Monitor ..........................................................68
.
INSTALLATION ................................................... 40
. OPERATION PROCEDURE ...............................68 .
SENSOR ROTOR ..................................................... 41
. DISPLAY ITEM LIST ...........................................68 .
Removal and Installation ....................................... 41
. Active Test ..............................................................70
.
REMOVAL .......................................................... 41
. OPERATION PROCEDURE ...............................70 .
INSTALLATION ................................................... 41
. TEST ITEM .........................................................70.
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 42 ABS Actuator and Electric Unit (Control Unit) Part
Removal and Installation ....................................... 42
. Number ..................................................................71
.
Trouble Diagnosis Chart for Symptoms .................71 .
VDC/TCS/ABS For Fast and Accurate Diagnosis ...........................72 .
PRECAUTIONS FOR DIAGNOSIS ....................72 .
PRECAUTIONS ........................................................ 43 . Basic Inspection .....................................................73
.
Precautions for Supplemental Restraint System BRAKE FLUID LEVEL, LEAKS, AND BRAKE
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- PADS ..................................................................73
.
SIONER" ................................................................ 43. POWER SYSTEM TERMINAL LOOSENESS
Precautions for Brake System ............................... 43 . AND BATTERY ...................................................73 .
Precautions for Brake Control ............................... 43 . ABS WARNING LAMP, VDC OFF INDICATOR
PREPARATION ........................................................ 45 . LAMP, BRAKE WARNING LAMP AND SLIP INDI-
Commercial Service Tools ..................................... 45 . CATOR LAMP .....................................................73 .
ON-VEHICLE SERVICE ........................................... 46 . TROUBLE DIAGNOSIS FOR SYSTEM ...................75 .
Adjustment of Steering Angle Sensor Neutral Posi- Wheel Sensor ........................................................75.
tion ......................................................................... 46
. INSPECTION PROCEDURE ..............................75 .
Calibration of Decel G Sensor ............................... 47 . Engine System Control Signal ...............................77 .
SYSTEM DESCRIPTION ......................................... 48 . INSPECTION PROCEDURE ..............................77 .
System Diagram .................................................... 48 . ABS Actuator and Electric Unit (Control Unit) ........77 .
COMPONENTS FUNCTION DESCRIPTION ..... 48 . INSPECTION PROCEDURE ..............................77 .
Function ................................................................. 49
. Pressure Sensor ....................................................78 .
VDC .................................................................... 49
. INSPECTION PROCEDURE ..............................78 .
TCS .................................................................... 49
. Steering Angle Sensor ...........................................80 .
ABS .................................................................... 49
. INSPECTION PROCEDURE ..............................80 .
EBD .................................................................... 49
. Yaw Rate/Side/Decel G Sensor .............................81 .
Hydraulic Circuit Diagram ...................................... 50 . INSPECTION PROCEDURE ..............................81 .
HYDRAULIC COMPONENTS FUNCTION Solenoid and VDC Change-Over Valve .................83 .
DESCRIPTION ................................................... 50 . INSPECTION PROCEDURE ..............................83 .
CAN Communication ............................................. 50 . Actuator Motor and Motor Relay ............................84 .
SYSTEM DESCRIPTION ................................... 50 . INSPECTION PROCEDURE ..............................84 .
TROUBLE DIAGNOSIS ........................................... 51 . ABS Actuator and Electric Unit (Control Unit) Power
Fail-Safe Function ................................................. 51 . Supply and Ground Circuit .....................................85 .
VDC/TCS SYSTEM ............................................ 51 . INSPECTION PROCEDURE ..............................85 .
ABS, EBD SYSTEM ........................................... 51 . Stop Lamp Switch ..................................................87 .
How to Perform Trouble Diagnosis for Quick and INSPECTION PROCEDURE ..............................87 .
Accurate Repair ..................................................... 51 . Brake Fluid Level Switch ........................................88 .
INTRODUCTION ................................................ 51 . INSPECTION PROCEDURE ..............................88 .
DIAGNOSIS FLOW CHART ............................... 52 . VDC OFF Switch ....................................................89 .
ASKING COMPLAINTS ...................................... 53 . INSPECTION PROCEDURE ..............................89 .
EXAMPLE OF DIAGNOSIS SHEET ................... 53 . CAN Communication Circuit ..................................90 .
Component Installation Location ........................... 54 . INSPECTION PROCEDURE ..............................90 .
Schematic .............................................................. 55. Component Inspection ...........................................91 .
Wiring Diagram -- VDC -- .................................... 56 . VDC OFF SWITCH .............................................91 .
Control Unit Input/Output Signal Standard ............. 62 . BRAKE FLUID LEVEL SWITCH .........................91 .
REFERENCE VALUE FROM CONSULT-II ........ 62 . TROUBLE DIAGNOSIS FOR SYMPTOMS .............92 .
CONSULT-II Functions (ABS) ................................ 64 . Excessive ABS Function Operation Frequency .....92 .
Revision: 2006 July BRC-2 2007 Murano
Unexpected Pedal Reaction .................................. 92 . SENSOR ROTOR .................................................... 98 .
The Braking Distance is Long ............................... 93 . Removal and Installation ....................................... 98 . A
ABS Function Does Not Operate .......................... 93 . REMOVAL .......................................................... 98
.
Pedal Vibration or ABS Operation Sound Occurs... 93 INSTALLATION .................................................. 98.
Vehicle Jerks During VDC/TCS/ABS Control ........ 94 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 99 B
ABS Warning Lamp Indication is Not Normal ........ 95 . Removal and Installation ....................................... 99 .
Slip Indicator Lamp Indication is Not Normal ........ 95 . G SENSOR ............................................................. 101
.
VDC OFF Indicator Lamp Indication is Not Normal 96 ... Removal and Installation ..................................... 101 .
WHEEL SENSORS .................................................. 97
. REMOVAL ........................................................ 101
. C
Removal and Installation ....................................... 97
. INSTALLATION ................................................ 101 .
REMOVAL .......................................................... 97
. STEERING ANGLE SENSOR ............................... 102 .
INSTALLATION .................................................. 97
. Removal and Installation ..................................... 102 . D
E
BRC
G
H
I
J
K
L
M
Revision: 2006 July BRC-3 2007 Murano
PRECAUTIONS
[ABS]
PRECAUTIONS
[ABS] PFP:00001
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NFS000F0
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:
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.
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.
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.
Precautions for Brake System NFS000F1
q Recommended fluid is brake fluid "DOT 3". Refer toMA-10, "RECOMMENDED FLUIDS AND LUBRI-
CANTS" .
q Do not reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas.
q To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
q Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
q Use a flare nut wrench when removing flare nuts, and use a flare
nut crowfoot and torque wrench when tighten brake tube flare
nuts.
q Always torque brake lines when installing.
q Before working, turn ignition switch OFF and disconnect electri-
cal connector of ABS actuator and electric control unit (control
unit) or battery negative terminal.
q Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage. Refer to BR-32, "BRAKE BURNISH-
ING PROCEDURE" . SBR686C
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precautions for Brake Control NFS000F2
q During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
q 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.
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.
Revision: 2006 July BRC-4 2007 Murano
PRECAUTIONS
[ABS]
q If there is a radio, antenna, or antenna lead-in wire (including wiring) near control module, ABS function
may have a malfunction or error. A
q If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
B
C
D
E
BRC
G
H
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J
K
L
M
Revision: 2006 July BRC-5 2007 Murano
PREPARATION
[ABS]
PREPARATION PFP:00002
Commercial Service Tools NFS000F3
Tool name Description
1.Flare nut crowfoot
a:10 mm (0.39 in)/12 mm (0.47 in) Installing brake tube
2.Torque wrench
S-NT360
Revision: 2006 July BRC-6 2007 Murano
SYSTEM DESCRIPTION
[ABS]
SYSTEM DESCRIPTION PFP:00000
A
System Diagram NFS000F4
B
C
D
E
BRC
G
H
I
PFIA0739E
COMPONENTS FUNCTION DESCRIPTION J
Components Description
q Receives the information of various sensor signals and then determines the vehicle driving
status. Performs the calculations of target brake fluid pressure, of brake actuator drive signal K
ABS actuator and electric unit (con- output for the ABS control.
trol unit)
q Receives the actuator drive signal from ABS actuator and electric unit (control unit), and then
performs the brake fluid adjustment of each wheel caliper. L
Decel G sensor (Only AWD models) Detects the G of the vehicle.
Wheel sensor Detects the rotation speed of each wheel.
M
Function NFS000F6
ABS
q 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.
q If the electrical system malfunctions, then fail-safe function is activated, ABS becomes inoperative, and
ABS warning lamp turns on.
q Electrical system diagnosis by CONSULT-II is available.
q During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
q 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.
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.
Revision: 2006 July BRC-7 2007 Murano
SYSTEM DESCRIPTION
[ABS]
EBD
q Electronic Brake Distribution is a function that detects subtle slippages between front and rear wheels dur-
ing braking, and it improves handling stability by electronically controlling Brake Fluid Pressure which
results in reduced rear wheel slippage.
q In case of electrical system malfunction, fail-safe function is activated, EBD and ABS becomes inopera-
tive, and ABS warning lamp and brake warning lamp are turned on.
q Electrical system diagnosis by CONSULT-II is available.
q During EBD operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
q 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.
q Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
Hydraulic Circuit Diagram NFS000F9
PFIA0422E
Revision: 2006 July BRC-8 2007 Murano
SYSTEM DESCRIPTION
[ABS]
HYDRAULIC COMPONENTS FUNCTION DESCRIPTION
Components Description
A
Increases, maintains and decreases the fluid pressure of each caliper according to the signal
Solenoid valve (ABS control valve)
from ABS actuator and electric unit (control unit).
B
When decreasing the caliper pressure, temporarily saves the brake fluid drained form the caliper
Reservoir
in order to perform the work efficiently.
Pump Refills the brake fluid saved in the reservoir via the damper to the caliper.
C
Motor Operates the pump according to the signal from ABS actuator and electric unit (control unit).
Leaves the brake fluid drained from the reservoir to the pump so as not to return it to the reser-
Inlet valve
voir.
D
Outlet valve Leaves the brake fluid drained from the pump so as not to return it to the pump.
When releasing the brake, bypasses with the orifice of solenoid valve, and then refills the brake-
Return check valve
fluid of caliper to the master cylinder. E
Controls the pulsation of brake fluid drained from the pump, and then weakens the pedal vibra-
Damper
tion during ABS operation.
CAN Communication NFS000FA
BRC
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec- G
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. H
Each control unit transmits/receives data but selectively reads required data only. Refer to LAN-49, "CAN Sys-
tem Specification Chart" .
I
J
K
L
M
Revision: 2006 July BRC-9 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
TROUBLE DIAGNOSIS PFP:00004
Fail-Safe Function NFS000LL
ABS, EBD SYSTEM
In case of electrical malfunctions with ABS, ABS warning lamp will turn on. In case of electrical malfunctions
with EBD, brake warning lamp and ABS warning lamp will turn on. Simultaneously, ABS become one of follow-
ing conditions of Fail-Safe function.
q For ABS malfunction, only EBD is activated and condition of vehicle is same condition of vehicles without
ABS system.
NOTE:
ABS self-diagnosis sound may be heard. That is a normal condition because a self-diagnosis for "Ignition
switch ON" and "The first starting" are being performed.
q For EBD malfunction, EBD and ABS become inoperative, and condition of vehicle is same as condition of
vehicles without ABS, EBD system.
How to Perform Trouble Diagnosis for Quick and Accurate Repair NFS000FB
INTRODUCTION
q Most important point to perform diagnosis is to understand systems (control and mechanism) in vehicle
thoroughly.
q It is also important to clarify customer complaints before inspec-
tion.
First of all, reproduce symptom, and understand it fully.
Ask customer about his/her complaints carefully. In some cases,
it will be necessary to check symptom by driving vehicle with
customer.
NOTE:
Customers are not professionals. Do not assume "maybe cus-
tomer means..." or "maybe customer mentioned this symptom".
EFJ0028D
q It is essential to check symptoms right from beginning in order to
repair a malfunction completely.
For an intermittent malfunction, it is important to reproduce
symptom based on interview with customer and past examples.
Do not perform inspection on ad hoc basis. Most intermittent
malfunctions are caused by poor contacts. In this case, it will be
effective to shake suspected harness or connector by hand.
When repairs are performed without any symptom check, no
one can judge if malfunction has actually been eliminated.
q After diagnosis, make sure to perform "erase memory". Refer to
BRC-22, "ERASE MEMORY" . SEF233G
q For an intermittent malfunction, move harness or harness con-
nector by hand to check poor contact or false open circuit.
q Always read "GI General Information" to confirm general precautions. Refer to GI-4, "General Precau-
tions" .
Revision: 2006 July BRC-10 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
DIAGNOSIS FLOW CHART
A
B
C
D
E
BRC
G
H
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L
M
SFIA3270E
Revision: 2006 July BRC-11 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
ASKING COMPLAINTS
q Complaints against malfunction vary depending on each person.
It is important to clarify customer complaints.
q Ask customer about what symptoms are present and under
what conditions. Use information to reproduce symptom while
driving.
q It is also important to use the diagnosis sheet so as not to miss
information.
SBR339B
EXAMPLE OF DIAGNOSIS SHEET
SFIA3264E
Revision: 2006 July BRC-12 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
Component Installation Location NFS000FC
A
B
C
D
E
BRC
G
H
I
J
K
L
M
PFIA0741E
Revision: 2006 July BRC-13 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
Schematic NFS000FD
TFWB0121E
Revision: 2006 July BRC-14 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
Wiring Diagram -- ABS -- NFS000FE
A
B
C
D
E
BRC
G
H
I
J
K
L
M
TFWB0117E
Revision: 2006 July BRC-15 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
TFWB0035E
Revision: 2006 July BRC-16 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
TFWB0036E
Revision: 2006 July BRC-17 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
TFWA0064E
Revision: 2006 July BRC-18 2007 Murano
TROUBLE DIAGNOSIS
[ABS]
Control Unit Input/Output Signal Standard NFS000FF
REFERENCE VALUE FROM CONSULT-II A
CAUTION:
The display shows control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short - circuited. B
Data monitor
Monitor item Display content Reference value in nor-
Condition C
mal operation
FR RH SENSOR Vehicle stopped 0 [km/h (MPH)]
FR LH SENSOR Almost in accordance
Wheel speed
RR RH SENSOR Vehicle running (Note 1) with speedometer dis- D
RR LH SENSOR play (within ◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo