Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Murano 2003-2007.2009 Approved Nissan Murano 2004 BRC
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BRAKE CONTROL SYSTEM
F BRAKES
A
SECTION
BRAKE CONTROL SYSTEM
BRC B
C
D
E
CONTENTS
ABS BASIC INSPECTION 2 POWER SYSTEM TER- BRC
MINAL LOOSENESS AND BATTERY INSPEC-
PRECAUTIONS ......................................................... 3
. TION ................................................................... 28
.
Precautions for Brake System ................................. 3 . BASIC INSPECTION 3 ABS WARNING LAMP G
Precautions for Brake Control ................................. 3 . INSPECTION ..................................................... 28 .
PREPARATION .......................................................... 4
. Inspection 1 Wheel Sensor System ....................... 29 .
Commercial Service Tools ....................................... 4. Inspection 2 ABS Actuator and Electric Unit (Control
SYSTEM DESCRIPTION ........................................... 5 . H
Unit) ....................................................................... 32
.
System Diagram ...................................................... 5
. Inspection 3 Solenoid Valve System ..................... 33 .
System Component Parts ....................................... 5 . Inspection 4 CAN Communication Lines ............... 34 .
ABS Function .......................................................... 6
. Inspection 5 Actuator Motor, Motor Relay, and Cir- I
EBD Function .......................................................... 6
. cuit ......................................................................... 34
.
Fail-Safe Function ................................................... 6
. Inspection 6 ABS Actuator and Electric Unit (Control
ABS, EBD SYSTEM ............................................. 6 . Unit) Power Supply and Ground Circuit ................. 35 . J
Hydraulic Circuit Diagram ....................................... 7
. Inspection 7 G Sensor System .............................. 37 .
CAN COMMUNICATION ........................................... 8 . Symptom 1 Excessive ABS Function Operation Fre-
System Description ................................................. 8
. quency ................................................................... 38
.
TROUBLE DIAGNOSIS ............................................. 9 . K
Symptom 2 Unexpected Pedal Action ................... 38 .
How to Perform Trouble Diagnosis for Quick and Symptom 3 Long Stopping Distance ..................... 39 .
Accurate Repair ...................................................... 9
. Symptom 4 ABS Function Dose Not Operate ....... 40 .
INTRODUCTION .................................................. 9
. Symptom 5 Pedal Vibration or ABS Operation L
DIAGNOSIS FLOWCHART ............................... 10 . Sound Occurs ........................................................ 40 .
ASKING COMPLAINTS ......................................11 . WHEEL SENSORS .................................................. 42 .
EXAMPLE OF DIAGNOSIS SHEET ...................11 . Removal and Installation ....................................... 42 . M
Component Installation Location ........................... 12 . REMOVAL .......................................................... 42 .
Schematic -- ABS -- ............................................ 13
. INSTALLATION .................................................. 42 .
Wiring Diagram -- ABS -- .................................... 14 . SENSOR ROTOR .................................................... 43 .
Control Unit Input/Output Signal Standard ............ 18 . Removal and Installation ....................................... 43 .
REFERENCE VALUE FROM CONSULT-II ........ 18 . REMOVAL .......................................................... 43 .
CONSULT- II Functions ......................................... 19. INSTALLATION .................................................. 43 .
CONSULT-II MAIN FUNCTION .......................... 19 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 44
CONSULT-II BASIC OPERATION PROCEDURE Removal and Installation ....................................... 44 .
... 19
SELF-DIAGNOSIS ............................................. 21 .
DATA MONITOR ................................................ 23.
VDC/TCS/ABS
ACTIVE TEST .................................................... 25
. PRECAUTIONS ....................................................... 45.
For Fast and Accurate Diagnosis .......................... 27 . Precautions for Supplemental Restraint System
PRECAUTIONS FOR DIAGNOSIS .................... 27 . (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
Basic Inspection .................................................... 28
. SIONER" ................................................................ 45
.
BASIC INSPECTION 1 BRAKE FLUID LEVEL,
LEAKS, AND BRAKE PADS .............................. 28 .
Revision: 2004 November BRC-1 2004 Murano
Precautions for Brake System ............................... 45 . Inspection 1 Wheel Sensor System .......................83 .
Precautions for Brake Control ............................... 45 . Inspection 2 Engine System ..................................85 .
PREPARATION ........................................................ 47 . Inspection 3 VDC/TCS/ABS Control Unit System ...86
Commercial Service Tools ..................................... 47 . Inspection 4 Pressure Sensor System ...................87 .
ON-VEHICLE SERVICE ........................................... 48 . Inspection 5 Steering Angle Sensor System ..........89 .
Adjustment of Steering Angle Sensor Neutral Posi- Inspection 6 Yaw Rate/Side/Decel G sensor System
tion ......................................................................... 48
. ...90
Calibration of Decel G Sensor ............................... 49 . Inspection 7 Solenoid and VDC Change-Over Valve
SYSTEM DESCRIPTION ......................................... 50 . System ...................................................................92
.
System Diagram .................................................... 50 . Inspection 8 Actuator Motor, Motor Relay, and Cir-
System Component Parts ...................................... 51 . cuit .........................................................................93
.
VDC Function ........................................................ 51 . Inspection 9 ABS Actuator and Electric Unit (Control
TCS Function ......................................................... 52 . Unit) Power Supply and Ground Circuit .................94 .
ABS Function ......................................................... 52 . Inspection 10 Stop Lamp Switch System ...............95 .
EBD Function ........................................................ 52 . Inspection 11 Brake Fluid Level Sensor System ....96 .
Fail-Safe Function ................................................. 52 . Inspection 12 When "ST ANG SEN SIGNAL"
VDC/TCS SYSTEM ............................................ 52 . Appears on self-Diagnosis Results Display ...........97 .
ABS, EBD SYSTEM ........................................... 52 . Inspection 13 CAN Communication System ..........97 .
Hydraulic Circuit Diagram ...................................... 53 . Inspection 14 When "DECEL G SEN SET" Appears
CAN COMMUNICATION .......................................... 54 . on Self-Diagnosis Results Display .........................98 .
System Description ................................................ 54 . Inspection 15 When "ESTM VEH SPD SIG" Appears
TROUBLE DIAGNOSIS ........................................... 55 . on Self-Diagnosis Results Display .........................98 .
How to Perform Trouble Diagnosis for Quick and Inspection 16 VDC OFF Indicator Lamp Does Not
Accurate Repair ..................................................... 55 . Illuminate ................................................................98
.
INTRODUCTION ................................................ 55 . Component Inspection ...........................................99 .
DIAGNOSIS FLOWCHART ................................ 56 . VDC OFF SWITCH .............................................99 .
ASKING COMPLAINTS ...................................... 57 . Symptom 1 Excessive ABS Function Operation Fre-
EXAMPLE OF DIAGNOSIS SHEET ................... 57 . quency ...................................................................99
.
Component Installation Location ........................... 58 . Symptom 2 Unexpected Pedal Reaction ...............99 .
Schematic .............................................................. 59. Symptom 3 The Braking Distance Is Long ........... 100 .
Wiring Diagram -- VDC -- .................................... 60 . Symptom 4 ABS Function Does Not Operate ...... 101 .
Control Unit Input/Output Signal Standard ............. 66 . Symptom 5 Pedal Vibration or ABS Operation
REFERENCE VALUE FROM CONSULT-II ........ 66 . Sound Occurs ...................................................... 101 .
CONSULT-II Functions .......................................... 69 . Symptom 6 Vehicle Jerks During VDC/TCS/ABS
CONSULT-II MAIN FUNCTION .......................... 69 . Control ................................................................. 102
.
CONSULT-II BASIC OPERATION PROCEDURE WHEEL SENSORS ................................................ 104 .
... 69 Removal and Installation ...................................... 104 .
SELF-DIAGNOSIS ............................................. 71 . REMOVAL ......................................................... 104 .
DATA MONITOR ................................................. 75 . INSTALLATION ................................................. 104 .
ACTIVE TEST .................................................... 78 . SENSOR ROTOR ................................................... 105 .
For Fast and Accurate Diagnosis .......................... 80 . Removal and Installation ...................................... 105 .
PRECAUTIONS FOR DIAGNOSIS .................... 80 . REMOVAL ......................................................... 105 .
Basic Inspection .................................................... 81 . INSTALLATION ................................................. 105 .
BASIC INSPECTION 1 BRAKE FLUID LEVEL, ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) .106
LEAKS, AND BRAKE PADS ............................... 81 . Removal and Installation ...................................... 106 .
BASIC INSPECTION 2 POWER SYSTEM TER- G SENSOR ............................................................. 108 .
MINAL LOOSENESS AND BATTERY INSPEC- Removal and Installation ...................................... 108 .
TION ................................................................... 81
. REMOVAL ......................................................... 108 .
BASIC INSPECTION 3 ABS WARNING LAMP, INSTALLATION ................................................. 108 .
VDC OFF INDICATOR LAMP, SLIP INDICATOR STEERING ANGLE SENSOR ................................ 109 .
LAMP INSPECTION ........................................... 81 . Removal and Installation ...................................... 109 .
Revision: 2004 November BRC-2 2004 Murano
PRECAUTIONS
[ABS]
PRECAUTIONS
[ABS] PFP:00001
A
Precautions for Brake System AFS001ZN
q Recommended fluid is brake fluid "DOT 3".
q Do not reuse drained brake fluid. B
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 Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system. C
q Use flare nut wrench when removing and installing brake tube.
q Always torque brake lines when installing.
D
q Before working, turn ignition switch OFF and disconnect electri-
cal connectors of ABS actuator and electric control unit or bat-
tery terminals.
E
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 BURNISHING PROCEDURE" . BRC
WARNING: SBR686C
Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector. G
Precautions for Brake Control AFS0018B
q During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal. H
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, I
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 J
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. K
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.
L
q If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.
M
Revision: 2004 November BRC-3 2004 Murano
PREPARATION
[ABS]
PREPARATION PFP:00002
Commercial Service Tools AFS0018E
Tool name Description
1.Flare nut crowfoot
a: 10mm (0.39 in) Removing and installing each brake piping
2.Torque wrench
S-NT360
Revision: 2004 November BRC-4 2004 Murano
SYSTEM DESCRIPTION
[ABS]
SYSTEM DESCRIPTION PFP:00000
A
System Diagram AFS0018F
B
C
D
E
BRC
PFIA0462E
G
System Component Parts AFS0018G
H
I
J
K
L
M
PFIA0416E
1. Sensor rotor (FR) 2. Wheel sensor (FR) 3. Wheel sensor (FL)
4. Sensor rotor (FL) 5. Brake booster and Master cylinder 6. ABS actuator and electric unit
(control unit)
7. Sensor rotor (RR) 8. Wheel sensor (RR) 9. Wheel sensor (RL)
10. Sensor rotor (RL) 11. Combination meter
[Brake warning lamp,
ABS warning lamp]
Revision: 2004 November BRC-5 2004 Murano
SYSTEM DESCRIPTION
[ABS]
ABS Function AFS0018H
q The Anti-Lock Brake 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 breaks down, 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.
EBD Function AFS0018I
q Electronic Brake Distributor 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 break down, 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.
Fail-Safe Function AFS0018J
ABS, EBD SYSTEM
In case of electrical problems with ABS, ABS warning lamp will turn on. In case of electrical problem with EBD,
Brake warning lamp and ABS warning lamp will turn on. Simultaneously, ABS become one of following condi-
tions of Fail-Safe function.
1. For ABS trouble, only EBD is activated and condition of vehicle is same condition of vehicles without ABS
system.
2. For EBD trouble, EBD and ABS become inoperative, and condition of vehicle is same as condition of vehi-
cles without ABS, EBD system.
NOTE:
In step 1 shown above, self-diagnosis when ignition switch is turned ON and when vehicle starts at initial time
is carried out. ABS self-diagnosis noise may be hard as usual.
Revision: 2004 November BRC-6 2004 Murano
SYSTEM DESCRIPTION
[ABS]
Hydraulic Circuit Diagram AFS0018K
A
B
C
D
E
BRC
G
H
I
J
PFIA0422E
K
L
M
Revision: 2004 November BRC-7 2004 Murano
CAN COMMUNICATION
[ABS]
CAN COMMUNICATION PFP:23710
System Description AFS0029P
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-
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.
Each control unit transmits/receives data but selectively reads required data only. Refer to LAN-8, "CAN Com-
munication Unit" .
Revision: 2004 November BRC-8 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
TROUBLE DIAGNOSIS PFP:00004
A
How to Perform Trouble Diagnosis for Quick and Accurate Repair AFS0018N
INTRODUCTION
q Most important point to perform diagnosis is to understand systems (control and mechanism) in vehicle B
thoroughly.
q It is also important to clarify customer complaints before inspec-
tion. C
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 D
customer.
NOTE:
Customers are not professionals. Do not assume "maybe cus-
E
tomer means..." or "maybe customer mentioned this symptom".
EFJ0028D
BRC
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 G
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. H
When repairs are performed without any symptom check, no
one can judge if malfunction has actually been eliminated.
q After diagnosis, make sure to carry out "erase memory". Refer to I
BRC-21, "Operation Procedure" . SEF233G
q For an intermittent malfunction, move harness or harness con-
nector by hand to check poor contact or false open circuit. J
q Always read "GI General Information" to confirm general precautions. Refer to GI-4, "General Precau-
tions" .
K
L
M
Revision: 2004 November BRC-9 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
DIAGNOSIS FLOWCHART
LFIA0175E
Revision: 2004 November BRC-10 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
ASKING COMPLAINTS
q Complaints against malfunction vary depending on each person. A
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 B
driving.
q It is also important to use the diagnosis sheet so as not to miss
information. C
SBR339B
D
EXAMPLE OF DIAGNOSIS SHEET
E
BRC
G
H
I
J
K
L
M
LFIA0176E
Revision: 2004 November BRC-11 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
Component Installation Location AFS0018O
PFIA0425E
Revision: 2004 November BRC-12 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
Schematic -- ABS -- AFS0018P
A
B
C
D
E
BRC
G
H
I
J
K
L
M
TFWA0060E
Revision: 2004 November BRC-13 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
Wiring Diagram -- ABS -- AFS0018Q
TFWA0100E
Revision: 2004 November BRC-14 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
TFWA0062E
Revision: 2004 November BRC-15 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
TFWA0063E
Revision: 2004 November BRC-16 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
TFWA0064E
Revision: 2004 November BRC-17 2004 Murano
TROUBLE DIAGNOSIS
[ABS]
Control Unit Input/Output Signal Standard AFS0018R
REFERENCE VALUE FROM CONSULT-II
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.
Data monitor
Note: Error inspection
Monitor item Display content Reference value in
Condition checklist
normal operation
Vehicle stopped 0 [km/h]
FR RH SENSOR
FR LH SENSOR Almost in accor- BRC-29, "Inspection 1
Wheel speed dance with speed-
RR RH SENSOR Vehicle running (Note 1) Wheel Sensor System"
RR LH SENSOR ometer display
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