Nissan Murano Z50 (2006 year). Manual - part 47

 

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Nissan Murano Z50 (2006 year). Manual - part 47

 

 

REAR DISC BRAKE

BR-35

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3.

Insert the piston boot piston-side lip into the piston groove.

CAUTION:

Press the piston evenly and vary the pressing point to pre-
vent cylinder inner wall from being rubbed.

4.

Fix piston boot with retaining ring.

CAUTION:

●

Make sure the boot is firmly in the cylinder body groove.

●

Do not reuse the retaining ring.

5.

Install the sliding pin bolt and sliding pin boot to the torque member.

6.

Apply PBC (Poly Butyl Cuprysil) grease or silicon-based grease to the rear of the pad and to both sides of
the shim, and attach the inner shim and shim cover to the inner pad, and the outer shim and outer shim
cover to the outer pad.

7.

Install the pad retainer and pad to the torque member.

CAUTION:

When installing the pad retainer, install it firmly so that it
does not float up form groove of the torque member, as
shown in the figure.

8.

After assembling shims and shim covers to pad, install it to the
torque member.

9.

Install cylinder body. Tighten sliding pin bolts to the specified
torque.

SFIA2279E

SFIA2280E

PFIA0273E

BR-36

REAR DISC BRAKE

Revision: 2006 August

2006 Murano

DISC ROTOR INSPECTION
Visual Inspection

Check surface of the disc rotor for uneven wear, cracks, and serious damage. If any of them is detected,
replace applicable part.

Runout Inspection

1.

Using wheel nuts, fix disc rotor to the wheel hub. (2 or more positions)

2.

Check runout using a dial indicator. 
[measured at 10 mm (0.39 in) inside the disc edge]

NOTE:
Make sure that wheel bearing axial end play is within the specifi-
cations before measuring runout. Refer to 

RAX-5, "WHEEL

HUB"

 .

3.

If runout is outside the limit, find the minimum runout point by
shifting mounting positions of the disc rotor and wheel hub by
one hole.

4.

If runout is still out of specification, turn rotor with on-car brake
lathe (“MAD, DL-8700”, “AMMCO 700 and 705 ” or equivalent).

Thickness Inspection

Using a micrometer, check thickness of the disc rotor. If thickness is
outside the standard, replace disc rotor.

BRAKE BURNISHING PROCEDURE

Burnish the brake contact surface according to the following procedure after refinishing or replacing rotors,
after replacing pads, or if a soft pedal occurs at very low mileage.

CAUTION:

Only perform this procedure under safe road and traffic conditions. Use extreme caution.

1.

Drive the vehicle on a straight smooth road at 50 km/h (31 MPH).

2.

Use medium brake pedal /foot effort to bring the vehicle to a complete stop from 50 km/h (31 MPH).
Adjust brake pedal /foot pressure such that vehicle stopping time equals 3 to 5 seconds.

3.

To cool the brake system, drive the vehicle at 50 km/h (31 MPH) for 1 minute without stopping.

4.

Repeat steps 1 to 3, 10 times or more to complete the burnishing procedure.

Maximum runout 
(with it attached to the vehicle)

: 0.05 mm (0.0020 in)

BRA0013D

Standard thickness

: 16.0 mm (0.630 in)

Repair limit thickness

: 14.0 mm (0.551 in)

Thickness variation
 (measured at 8 positions)

: 0.015 mm (0.0006 in) 

SBR020B

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-37

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SERVICE DATA AND SPECIFICATIONS (SDS)

PFP:00030

General Specifications

NFS000EN

Unit: mm (in)

Brake Pedal

NFS000EO

Brake Booster

NFS000EP

Vacuum type

Check Valve

NFS000EQ

Front Disc Brake

NFS000ER

Rear Disc Brake

NFS000ES

Front brake

Cylinder bore diameter

63.6 (2.504)

Pad length 

×

 width 

×

 thickness

111 

×

 63.5 

×

 9.5 (4.37 

×

 2.500 

×

 0.374)

Rotor outer diameter 

×

 thickness

320 

×

 28 (12.60 

×

 1.10)

Rear brake 

Cylinder bore diameter

42.86 (1.6874)

Pad length 

×

 width 

×

 thickness

83.0 

×

 33.0 

×

 8.5 (3.268 

×

 1.299 

×

 0.335)

Rotor outer diameter 

×

 thickness

308 

×

 16 (12.13 

×

 0.63)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve model

Electric brake force distribution

Brake booster

Diaphragm diameter

primary

 228.5 (9.0)

Secondary

203 (8.0)

Recommended brake fluid

DOT 3

Brake pedal height (from dash panel top surface) 

199.5 – 209.5 mm (7.85 – 8.25 in) 

Depressed pedal height [under a force of 490 N (50 kg, 110 lb) 
with the engine running]

More than 120 mm (4.72 in) 

Clearance between the stopper rubber and the threaded end of 
the stop lamp switch 

0.74 – 1.96 mm (0.0291 – 0.0772 in)

Pedal play

3 – 11 mm (0.12 – 0.43 in)

Input rod installation standard dimension

125 mm (4.92 in)

Vacuum leakage 
[at vacuum of 

−

66.7 kPa (

−

500 mmHg, 

−

19.69 inHg)]

Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds

Brake pad

Standard thickness (new)

9.5 mm (0.374 in)

Repair limit thickness

2.0 mm (0.079 in)

Disc rotor

Standard thickness (new)

28.0 mm (1.102 in)

Repair limit thickness

26.0 mm (1.024 in)

Thickness variation (measured at 8 positions)

0.015 mm (0.0006 in) 

Maximum runout (with it attached to the vehicle)

0.04 mm (0.0016 in) 

Brake pad

Standard thickness (new)

8.5 mm (0.335 in)

Repair limit thickness

2.0 mm (0.079 in)

Disc rotor

Standard thickness (new)

16.0 mm (0.630 in)

Repair limit thickness

14.0 mm (0.551 in)

Thickness variation (measured at 8 positions)

0.015 mm (0.0006 in) 

Maximum runout (with it attached to the vehicle)

0.05 mm (0.0020 in) 

BR-38

SERVICE DATA AND SPECIFICATIONS (SDS)

Revision: 2006 August

2006 Murano

BRC-1

BRAKE CONTROL SYSTEM

F  BRAKES

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BRAKE CONTROL SYSTEM

ABS

PRECAUTIONS .......................................................... 4

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
Precautions for Brake System .................................. 4
Precautions for Brake Control  .................................. 4

PREPARATION ........................................................... 6

Commercial Service Tools ........................................ 6

SYSTEM DESCRIPTION  ............................................ 7

System Diagram ....................................................... 7

COMPONENTS FUNCTION DESCRIPTION  ....... 7

Function ................................................................... 7

ABS ....................................................................... 7
EBD ....................................................................... 8

Hydraulic Circuit Diagram  ........................................ 8

HYDRAULIC COMPONENTS FUNCTION 
DESCRIPTION ...................................................... 8

CAN Communication ................................................ 9

SYSTEM DESCRIPTION  ...................................... 9

TROUBLE DIAGNOSIS ............................................ 10

Fail-Safe Function  .................................................. 10

ABS, EBD SYSTEM ............................................ 10

How to Perform Trouble Diagnosis for Quick and 
Accurate Repair  ..................................................... 10

INTRODUCTION ................................................. 10
DIAGNOSIS FLOW CHART  ................................11
ASKING COMPLAINTS  ...................................... 12
EXAMPLE OF DIAGNOSIS SHEET  ................... 12

Component Installation Location  ............................ 13
Schematic .............................................................. 14
Wiring Diagram — ABS —  ..................................... 15
Control Unit Input/Output Signal Standard  ............. 19

REFERENCE VALUE FROM CONSULT-II  ......... 19

CONSULT- II Functions (ABS)  ............................... 20

CONSULT-II MAIN FUNCTION ........................... 20
CONSULT-II SETTING PROCEDURE ................ 20
SELF-DIAG RESULT MODE  .............................. 22
DATA MONITOR MODE  ..................................... 24

ACTIVE TEST  ..................................................... 26
ABS ACTUATOR AND ELECTRIC UNIT (CON-
TROL UNIT) PART NUMBER  ............................. 27

Trouble Diagnosis Chart for Symptoms .................. 27
For Fast and Accurate Diagnosis  ........................... 28

PRECAUTIONS FOR DIAGNOSIS  ..................... 28

Basic Inspection  ..................................................... 29

BRAKE FLUID LEVEL, LEAKS, AND BRAKE 
PAD ..................................................................... 29
POWER SYSTEM TERMINAL LOOSENESS 
AND BATTERY .................................................... 29
ABS WARNING LAMP AND BRAKE WARNING 
LAMP ................................................................... 29

TROUBLE DIAGNOSIS FOR SYSTEM .................... 30

Wheel Sensor  ......................................................... 30

INSPECTION PROCEDURE  .............................. 30

ABS Actuator and Electric Unit (Control Unit)  ........ 33

INSPECTION PROCEDURE  .............................. 33

Solenoid Valve Circuit ............................................. 33

INSPECTION PROCEDURE  .............................. 33

CAN Communication Circuit ................................... 34

INSPECTION PROCEDURE  .............................. 34

Actuator Motor, Motor Relay, and Circuit  ................ 35

INSPECTION PROCEDURE  .............................. 35

ABS Actuator and Electric Unit (Control Unit) Power 
Supply and Ground Circuit  ..................................... 36

INSPECTION PROCEDURE  .............................. 36

G Sensor System  ................................................... 37

INSPECTION PROCEDURE  .............................. 37

Stop Lamp Switch ................................................... 38

INSPECTION PROCEDURE  .............................. 38

TROUBLE DIAGNOSIS FOR SYMPTOMS  .............. 39

Excessive ABS Function Operation Frequency ...... 39
Unexpected Pedal Reaction  ................................... 39
The Braking Distance is Long ................................. 40
ABS Function Dose Not Operate ............................ 40
Pedal Vibration or ABS Operation Sound Occurs ... 40
ABS Warning Lamp Indication is Not Normal  ......... 41

BRC-2

Revision: 2006 August

2006 Murano

WHEEL SENSORS  ................................................... 43

Removal and Installation  ........................................ 43

REMOVAL ........................................................... 43
INSTALLATION .................................................... 43

SENSOR ROTOR ...................................................... 44

Removal and Installation  ........................................ 44

REMOVAL ........................................................... 44
INSTALLATION .................................................... 44

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ... 45

Removal and Installation  ........................................ 45

VDC/TCS/ABS

PRECAUTIONS ......................................................... 46

Precautions for Supplemental Restraint System 
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 46
Precautions for Brake System  ................................ 46
Precautions for Brake Control  ................................ 46

PREPARATION ......................................................... 48

Commercial Service Tools  ...................................... 48

ON-VEHICLE SERVICE ............................................ 49

Adjustment of Steering Angle Sensor Neutral Posi-
tion .......................................................................... 49
Calibration of Decel G Sensor  ................................ 50

SYSTEM DESCRIPTION  .......................................... 51

System Diagram  ..................................................... 51

COMPONENTS FUNCTION DESCRIPTION ...... 51

Function .................................................................. 51

VDC ..................................................................... 51
TCS ..................................................................... 52
ABS ..................................................................... 52
EBD ..................................................................... 52

Hydraulic Circuit Diagram  ....................................... 53

HYDRAULIC COMPONENTS FUNCTION 
DESCRIPTION .................................................... 53

CAN Communication  .............................................. 53

SYSTEM DESCRIPTION  .................................... 53

TROUBLE DIAGNOSIS  ............................................ 54

Fail-Safe Function  .................................................. 54

VDC/TCS SYSTEM  ............................................. 54
ABS, EBD SYSTEM  ............................................ 54

How to Perform Trouble Diagnosis for Quick and 
Accurate Repair  ...................................................... 54

INTRODUCTION ................................................. 54
DIAGNOSIS FLOW CHART  ................................ 55
ASKING COMPLAINTS ....................................... 56
EXAMPLE OF DIAGNOSIS SHEET .................... 56

Component Installation Location  ............................ 57
Schematic ............................................................... 58
Wiring Diagram — VDC —  ..................................... 59
Control Unit Input/Output Signal Standard .............. 65

REFERENCE VALUE FROM CONSULT-II  ......... 65

CONSULT-II Functions (ABS) ................................. 67

CONSULT-II MAIN FUNCTION  ........................... 67
CONSULT-II SETTING PROCEDURE  ................ 68
SELF-DIAG RESULT MODE  ............................... 70
DATA MONITOR MODE  ...................................... 72
ACTIVE TEST  ..................................................... 75

ABS ACTUATOR AND ELECTRIC UNIT (CON-
TROL UNIT) PART NUMBER  ..............................76

Trouble Diagnosis Chart for Symptoms  ..................77
For Fast and Accurate Diagnosis ............................78

PRECAUTIONS FOR DIAGNOSIS  .....................78

Basic Inspection ......................................................79

BRAKE FLUID LEVEL, LEAKS, AND BRAKE 
PADS ...................................................................79
POWER SYSTEM TERMINAL LOOSENESS 
AND BATTERY  ....................................................79
ABS WARNING LAMP, VDC OFF INDICATOR 
LAMP, BRAKE WARNING LAMP AND SLIP INDI-
CATOR LAMP  ......................................................79

TROUBLE DIAGNOSIS FOR SYSTEM  ....................81

Wheel Sensor  .........................................................81

INSPECTION PROCEDURE  ...............................81

Engine System Control Signal  ................................83

INSPECTION PROCEDURE  ...............................83

ABS Actuator and Electric Unit (Control Unit)  .........84

INSPECTION PROCEDURE  ...............................84

Pressure Sensor  .....................................................84

INSPECTION PROCEDURE  ...............................84

Steering Angle Sensor  ............................................85

INSPECTION PROCEDURE  ...............................85

Yaw Rate/Side/Decel G Sensor  ..............................87

INSPECTION PROCEDURE  ...............................87

Solenoid and VDC Change-Over Valve  ..................89

INSPECTION PROCEDURE  ...............................89

Actuator Motor and Motor Relay  .............................90

INSPECTION PROCEDURE  ...............................90

ABS Actuator and Electric Unit (Control Unit) Power 
Supply and Ground Circuit  ......................................91

INSPECTION PROCEDURE  ...............................91

Stop Lamp Switch  ...................................................93

INSPECTION PROCEDURE  ...............................93

Brake Fluid Level Switch .........................................93

INSPECTION PROCEDURE  ...............................93

VDC OFF Switch .....................................................95

INSPECTION PROCEDURE  ...............................95

CAN Communication Circuit  ...................................96

INSPECTION PROCEDURE  ...............................96

Component Inspection  ............................................96

VDC OFF SWITCH  ..............................................96
BRAKE FLUID LEVEL SWITCH  ..........................97

TROUBLE DIAGNOSIS FOR SYMPTOMS  ..............98

Excessive ABS Function Operation Frequency  ......98
Unexpected Pedal Reaction  ...................................98
The Braking Distance is Long  .................................99
ABS Function Does Not Operate  ............................99
Pedal Vibration or ABS Operation Sound Occurs ...99
Vehicle Jerks During VDC/TCS/ABS Control ........100
ABS Warning Lamp Indication is Not Normal  .......100
Slip Indicator Lamp Indication is Not Normal  ........101
VDC OFF Indicator Lamp Indication is Not Normal .102

WHEEL SENSORS  .................................................103

Removal and Installation .......................................103

REMOVAL ..........................................................103
INSTALLATION ..................................................103

BRC-4

[ABS]

PRECAUTIONS

Revision: 2006 August

2006 Murano

[ABS]

PRECAUTIONS

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:

●

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 harnesses or
harness connectors.

Precautions for Brake System

NFS000F1

●

Recommended fluid is brake fluid “DOT 3”. Refer to

MA-10, "RECOMMENDED FLUIDS AND LUBRI-

CANTS"

 .

●

Never reuse drained brake fluid.

●

Be careful not to splash brake fluid on painted areas.

●

To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.

●

Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

●

Use flare nut wrench when removing and installing brake tube.

●

Always torque brake lines when installing.

●

Before working, turn ignition switch OFF and disconnect electri-
cal connectors of ABS actuator and electric control unit or bat-
tery cables.

●

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-30, "BRAKE BURNISHING PROCEDURE"

 .

WARNING:

Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector.

Precautions for Brake Control

NFS000F2

●

During ABS operation, 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 brake booster operation, brake fluid
level, and fluid 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

PRECAUTIONS

BRC-5

[ABS]

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BRC

Revision: 2006 August

2006 Murano

●

If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness
pinches, open circuits, and improper wiring.

BRC-6

[ABS]

PREPARATION

Revision: 2006 August

2006 Murano

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)
2.Torque wrench

Removing and installing each brake piping

S-NT360

SYSTEM DESCRIPTION

BRC-7

[ABS]

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BRC

Revision: 2006 August

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SYSTEM DESCRIPTION

PFP:00000

System Diagram

NFS000F4

COMPONENTS FUNCTION DESCRIPTION

Function

NFS000F6

ABS

●

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.

●

 If the electrical system malfunctions, then fail-safe function is activated, ABS becomes inoperative, and
ABS warning lamp turns on.

●

Electrical system diagnosis by CONSULT-II is available.

●

During ABS operation, 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.

PFIA0739E

Components

Description

ABS actuator and electric unit (con-
trol unit)

●

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 
output for the ABS control.

●

Receives the actuator drive signal from ABS actuator and electric unit (control unit), and then 
performs the brake fluid adjustment of each wheel caliper.

Decel G sensor (Only AWD models)

Detects the G of the vehicle.

Wheel sensor

Detects the rotation speed of each wheel.

BRC-8

[ABS]

SYSTEM DESCRIPTION

Revision: 2006 August

2006 Murano

EBD

●

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.

●

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.

●

Electrical system diagnosis by CONSULT-II is available.

●

During EBD operation, 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 EBD when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

Hydraulic Circuit Diagram

NFS000F9

HYDRAULIC COMPONENTS FUNCTION DESCRIPTION

PFIA0422E

Components

Description

Solenoid valve (ABS control valve)

Increases, maintains and decreases the fluid pressure of each caliper according to the signal 
from ABS actuator and electric unit (control unit).

Reservoir

When decreasing the caliper pressure, temporarily saves the brake fluid drained form the caliper 
in order to perform the work efficiently.

Pump

Refills the brake fluid saved in the reservoir via the damper to the caliper.

Motor

Operates the pump according to the signal from ABS actuator and electric unit (control unit).

Inlet valve

Leaves the brake fluid drained from the reservoir to the pump so as not to return it to the reser-
voir.

SYSTEM DESCRIPTION

BRC-9

[ABS]

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BRC

Revision: 2006 August

2006 Murano

CAN Communication

NFS000FA

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-
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-32, "CAN

Communication Unit"

 . 

Outlet valve

Leaves the brake fluid drained from the pump so as not to return it to the pump.

Return check valve

When releasing the brake, bypasses with the orifice of solenoid valve, and then refills the brake-
fluid of caliper to the master cylinder.

Damper

Controls the pulsation of brake fluid drained from the pump, and then weakens the pedal vibra-
tion during ABS operation.

Components

Description

BRC-10

[ABS]

TROUBLE DIAGNOSIS

Revision: 2006 August

2006 Murano

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.

1.

For ABS malfunction, only EBD is activated and condition of vehicle is same condition of vehicles without
ABS system.

2.

For EBD malfunction, EBD and ABS become inoperative, and condition of vehicle is same as condition of
vehicles 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 performed. ABS self-diagnosis noise may be hard as usual.

How to Perform Trouble Diagnosis for Quick and Accurate Repair

NFS000FB

INTRODUCTION

●

Most important point to perform diagnosis is to understand systems (control and mechanism) in vehicle
thoroughly.

●

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”.

●

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.

●

After diagnosis, make sure to perform “erase memory”. Refer to

BRC-23, "How to Erase Self-Diagnostic Results"

 .

●

For an intermittent malfunction, move harness or harness con-
nector by hand to check poor contact or false open circuit.

●

Always read “GI General Information” to confirm general precautions. Refer to 

GI-4, "General Precau-

tions"

 .

EFJ0028D

SEF233G

TROUBLE DIAGNOSIS

BRC-11

[ABS]

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BRC

Revision: 2006 August

2006 Murano

DIAGNOSIS FLOW CHART

SFIA3270E

BRC-12

[ABS]

TROUBLE DIAGNOSIS

Revision: 2006 August

2006 Murano

ASKING COMPLAINTS

●

Complaints against malfunction vary depending on each person.
It is important to clarify customer complaints.

●

Ask customer about what symptoms are present and under
what conditions. Use information to reproduce symptom while
driving.

●

It is also important to use the diagnosis sheet so as not to miss
information.

EXAMPLE OF DIAGNOSIS SHEET

SBR339B

SFIA3264E

 

 

 

 

 

 

 

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