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Nissan Murano Z51 (2008 year). Manual - part 79

BRC-104

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

EXCESSIVE ABS FUNCTION OPERATION FREQUENCY

SYMPTOM DIAGNOSIS

EXCESSIVE ABS FUNCTION OPERATION FREQUENCY

Diagnosis Procedure

INFOID:0000000003247244

CHECK START

Check front and rear brake force distribution using a brake tester. Refer to

BR-47, "General Specifications"

Is the inspection result normal?

YES

>> GO TO 2.

>> Check brake system.

CHECK FRONT AND REAR AXLE

Make sure that there is no excessive play in the front and rear axles.
• Front
- 2WD models: Refer to

FAX-8, "Inspection"

- AWD models: Refer to

FAX-35, "Inspection"

• Rear
- 2WD models: Refer to

RAX-4, "Inspection"

- AWD models: Refer to

RAX-11, "Inspection"

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace damaged parts.

CHECK WHEEL SENSOR AND SENSOR ROTOR

Check the following.
• Wheel sensor installation for damage.
• Sensor rotor installation for damage.
• Wheel sensor connector connection.
• Wheel sensor harness inspection.

Is the inspection result normal?

YES

>> GO TO 4.

>> • Replace wheel sensor or sensor rotor.

• Repair harness.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving.

Is the ABS warning lamp illuminated?

YES

>> Perform self-diagnosis.

>> Normal

Revision: 2008 October

2009 Murano

UNEXPECTED PEDAL REACTION

BRC-105

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

BRC

UNEXPECTED PEDAL REACTION

Diagnosis Procedure

INFOID:0000000003247245

CHECK BRAKE PEDAL STROKE

Check brake pedal stroke. Refer to

BR-9, "Inspection and Adjustment"

Is the stroke too large?

YES

>> • Bleed air from brake tube and hose. Refer to

BR-13, "Bleeding Brake System"

• Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system

fluid leakage, etc.

- Brake pedal: Refer to

BR-9, "Inspection and Adjustment"

- Brake master cylinder: Refer to

BR-14, "Inspection"

- Brake booster: Refer to

BR-15, "Inspection"

>> GO TO 2.

CHECK FUNCTION

Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. Check if braking force is
normal in this condition. Connect connector after inspection.

Is the inspection result normal?

YES

>> Normal

>> Check brake system.

Revision: 2008 October

2009 Murano

BRC-106

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

THE BRAKING DISTANCE IS LONG

THE BRAKING DISTANCE IS LONG

Diagnosis Procedure

INFOID:0000000003247246

CAUTION:

The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.

CHECK FUNCTION

Turn the ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deacti-
vate ABS. In this condition, check stopping distance. After inspection, connect connector.

Is the inspection result normal?

YES

>> Normal

>> Check brake system.

Revision: 2008 October

2009 Murano

ABS FUNCTION DOES NOT OPERATE

BRC-107

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

BRC

ABS FUNCTION DOES NOT OPERATE

Diagnosis Procedure

INFOID:0000000003247247

CAUTION:

ABS does not operate when speed is 10 km/h (6 MPH) or lower.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp turns OFF after ignition switch is turned ON or when driving.

Is the inspection result normal?

YES

>> Normal

>> Perform self-diagnosis.

Revision: 2008 October

2009 Murano

BRC-108

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS

Diagnosis Procedure

INFOID:0000000003247248

CAUTION:

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

SYMPTOM CHECK 1

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

Do vibrations occur?

YES

>> GO TO 2.

>> Inspect the brake pedal.

SYMPTOM CHECK 2

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

Do the operation noises occur?

YES

>> GO TO 3.

>> Perform self-diagnosis.

SYMPTOM CHECK 3

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

YES

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

move it farther away.

>> Normal

Revision: 2008 October

2009 Murano

VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

BRC-109

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

BRC

VEHICLE JERKS DURING VDC/TCS/ABS CONTROL

Diagnosis Procedure

INFOID:0000000003247249

SYMPTOM CHECK

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

YES

>> Normal.

>> GO TO 2.

CHECK SELF-DIAGNOSIS RESULTS

Perform self-diagnostic of ABS actuator and electric unit (control unit).
Are self-diagnosis results indicated?

YES

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

unit) self-diagnosis.

>> GO TO 3.

CHECK CONNECTOR

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

check terminal for deformation, disconnection, looseness, etc.

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

Are self-diagnosis results indicated?

YES

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

>> GO TO 4.

CHECK ECM AND TCM SELF-DIAGNOSIS RESULTS

Perform ECM self-diagnosis and TCM self-diagnosis.

Are self-diagnosis results indicated?

YES

Check the corresponding items.

• ECM: Refer to

EC-102, "Diagnosis Description"

• TCM: Refer to

TM-32, "Diagnosis Description"

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

Revision: 2008 October

2009 Murano

BRC-110

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

NORMAL OPERATING CONDITION

NORMAL OPERATING CONDITION

Description

INFOID:0000000003247250

Symptom

Result

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Revision: 2008 October

2009 Murano

PRECAUTIONS

BRC-111

< PRECAUTION >

[VDC/TCS/ABS]

BRC

PRECAUTION

PRECAUTIONS

FOR USA AND CANADA

FOR USA AND CANADA : Precaution for Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER"

INFOID:0000000004790234

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 AIRBAG” and “SEAT BELT” of this
Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

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

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.

FOR USA AND CANADA : Precaution for Procedure without Cowl Top Cover

INFOID:0000000004790235

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.

FOR USA AND CANADA : Precaution for Brake System

INFOID:0000000003247253

WARNING:

Clean any dust from the front brake and rear brake with a vacuum dust collector. Never blow with com-
pressed air.

CAUTION:

• Only use “DOT 3” brake fluid. Refer to

MA-15, "FOR NORTH AMERICA : Fluids and Lubricants"

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

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

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

cause improper operation.

• Always loosen the brake tube flare nut with a flare nut wrench.

PIIB3706J

Revision: 2008 October

2009 Murano

BRC-112

< PRECAUTION >

[VDC/TCS/ABS]

PRECAUTIONS

• Tighten the brake tube flare nut to the specified torque with

crowfoot (A) and torque wrench (B).

• Always confirm the specified tightening torque when install-

ing the brake pipes.

• Turn the ignition switch OFF and disconnect the ABS actuator

and electric unit (control unit) connector or the battery nega-
tive terminal before performing the work.

• Check that no brake fluid leakage is present after replacing

the parts.

FOR USA AND CANADA : Precaution for Brake Control

INFOID:0000000003247254

• When starting engine or when starting vehicle just after starting engine, brake pedal may vibrate or motor

operating noise may be heard from engine compartment. This is normal condition.

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

(what symptoms are present under what conditions) and check for estimate causes before starting diagnos-
tic servicing. Besides electrical system inspection, check brake booster operation, brake fluid level, and oil
leaks.

• If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,

stopping distance or steering stability may deteriorate.

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

near the control unit.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness

pinches, open circuits, and improper wiring.

• VDC system may not operate normally or a VDC OFF indicator lamp or SLIP indicator lamp may light.
- When replacing the following parts with parts other than genuine parts or making modifications: Suspension-

related parts (shock absorber, spring, bushing, etc.), tires, wheels (other than specified sizes), brake-related
parts (pad, rotor, caliper, etc.), engine-related parts (muffler, ECM, etc.) and body reinforcement-related parts
(roll bar, tower bar, etc.).

- When driving with worn or deteriorated suspension, tires and brake-related parts.

FOR MEXICO

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

INFOID:0000000004790236

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

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

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

JPFIA0001ZZ

Revision: 2008 October

2009 Murano

PRECAUTIONS

BRC-113

< PRECAUTION >

[VDC/TCS/ABS]

BRC

FOR MEXICO : Precaution for Procedure without Cowl Top Cover

INFOID:0000000004790237

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.

FOR MEXICO : Precaution for Brake System

INFOID:0000000004790238

WARNING:

Clean any dust from the front brake and rear brake with a vacuum dust collector. Never blow with com-
pressed air.

CAUTION:

• Only use “DOT 3” brake fluid. Refer to

MA-16, "FOR MEXICO : Fluids and Lubricants"

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

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

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

cause improper operation.

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

crowfoot (A) and torque wrench (B).

• Always confirm the specified tightening torque when install-

ing the brake pipes.

• Turn the ignition switch OFF and disconnect the ABS actuator

and electric unit (control unit) connector or the battery nega-
tive terminal before performing the work.

• Check that no brake fluid leakage is present after replacing

the parts.

FOR MEXICO : Precaution for Brake Control

INFOID:0000000004790239

• When starting engine or when starting vehicle just after starting engine, brake pedal may vibrate or motor

operating noise may be heard from engine compartment. This is normal condition.

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

• If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,

stopping distance or steering stability may deteriorate.

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

near the control unit.

• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness

pinches, open circuits, and improper wiring.

- When driving with worn or deteriorated suspension, tires and brake-related parts.

PIIB3706J

JPFIA0001ZZ

Revision: 2008 October

2009 Murano

BRC-114

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

WHEEL SENSOR

ON-VEHICLE REPAIR

WHEEL SENSOR

FRONT WHEEL SENSOR

FRONT WHEEL SENSOR : Exploded View

INFOID:0000000003247255

NOTE:
The above figure (front side) shows left side. Right side is the mirror image.

FRONT WHEEL SENSOR : Removal and Installation

INFOID:0000000003247256

REMOVAL

Be careful with the following when removing sensor.

CAUTION:

• Do not twist sensor harness as much as possible, when removing it. Pull sensors out without pulling

sensor harness.

• Be careful to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before remov-

ing front or rear wheel hub. This is to avoid damage to sensor wiring and loss of sensor function.

• When you see the harness of the wheel sensor from the front side of the vehicle ensure that the

white lines (B) are not twisted.

INSTALLATION

Be careful with the following when installing wheel sensor. Tighten installation bolts to the specified torques.
• When installing, make sure there is no foreign material such as iron chips on and in the mounting hole of the

wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove any foreign mate-
rial and clean the mount.

Front LH wheel sensor connector

Front LH wheel sensor

White line (slant line)

: Vehicle front

Refer to

GI-4, "Components"

for symbol in the figure.

JSFIA0190GB

Revision: 2008 October

2009 Murano

WHEEL SENSOR

BRC-115

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

BRC

• When installing wheel sensor, be sure to press rubber grommets in until they lock at locations shown above

in the figure. When installed, harness must not be twisted.

REAR WHEEL SENSOR

REAR WHEEL SENSOR : Exploded View

INFOID:0000000003247257

REAR WHEEL SENSOR : Removal and Installation

INFOID:0000000003247258

REMOVAL

Be careful with the following when removing sensor.

CAUTION:

• Do not twist sensor harness as much as possible, when removing it. Pull sensors out without pulling

sensor harness.

• Be careful to avoid damaging sensor edges or rotor teeth. Remove wheel sensor first before remov-

ing front or rear wheel hub. This is to avoid damage to sensor wiring and loss of sensor function.

INSTALLATION

wheel sensor. Make sure no foreign material has been caught in the sensor rotor. Remove any foreign mate-
rial and clean the mount.

• When installing wheel sensor, be sure to press rubber grommets in until they lock at locations shown above

in the figure. When installed, harness must not be twisted.

Rear RH wheel sensor

Rear RH wheel sensor connector

Rear LH wheel sensor connector

Rear LH wheel sensor

AWD models only

White line (slant line)

: Vehicle front

Refer to

GI-4, "Components"

for symbol in the figure.

JSFIA0191GB

Revision: 2008 October

2009 Murano

BRC-116

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

SENSOR ROTOR

SENSOR ROTOR

FRONT SENSOR ROTOR

FRONT SENSOR ROTOR : Exploded View

INFOID:0000000003247259

Refer to

FAX-10, "Exploded View"

(2WD models),

FAX-37, "Exploded View"

(AWD models).

FRONT SENSOR ROTOR : Removal and Installation

INFOID:0000000003247260

REMOVAL

Sensor rotor cannot be disassembled. Remove the sensor rotor together with hub bearing assembly. Refer to

FAX-10, "Removal and Installation"

(2WD models),

FAX-37, "Removal and Installation"

(AWD models).

INSTALLATION

Sensor rotor cannot be disassembled. Install the sensor rotor together with hub bearing assembly. Refer to

FAX-10, "Removal and Installation"

(2WD models),

FAX-37, "Removal and Installation"

(AWD models).

REAR SENSOR ROTOR

REAR SENSOR ROTOR : Exploded View

INFOID:0000000003247261

Refer to

RAX-5, "Exploded View"

(2WD models),

RAX-13, "Exploded View"

(AWD models).

REAR SENSOR ROTOR : Removal and Installation

INFOID:0000000003247262

REMOVAL

Sensor rotor cannot be disassembled. Remove the sensor rotor together with hub bearing assembly. Refer to

RAX-5, "Removal and Installation"

(2WD models),

RAX-15, "Removal and Installation"

(AWD models).

INSTALLATION

Sensor rotor cannot be disassembled. Install the sensor rotor together with hub bearing assembly. Refer to

RAX-5, "Removal and Installation"

(2WD models),

RAX-15, "Removal and Installation"

(AWD models).

Revision: 2008 October

2009 Murano

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

BRC-117

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

BRC

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Exploded View

INFOID:0000000003247263

Removal and Installation

INFOID:0000000003247264

REMOVAL

CAUTION:

• Before servicing, disconnect the battery cable from negative terminal.
• To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-

aged. To install, use flare nut crowfoot and torque wrench.

• Do not apply excessive impact to ABS actuator and electric unit (control unit), such as dropping it.
• Do not remove and install actuator by holding harness.
1.

Remove cowl top. Refer to

EXT-20, "Exploded View"

Disconnect ABS actuator and electric unit (control unit) connector.

Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).

Remove ABS actuator and electric unit (control unit) bracket mounting nut.

Remove ABS actuator and electric unit (control unit) from vehicle.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

• Before servicing, disconnect the battery cable from negative terminal.

ABS actuator and electric unit (control
unit)

Bracket

To rear RH brake caliper

To rear LH brake caliper

From master cylinder primary side

To front RH brake caliper

To front LH brake caliper

From master cylinder secondary side

: Vehicle front

Refer to

GI-4, "Components"

for symbol in the figure.

JSFIA0192GB

Revision: 2008 October

2009 Murano

BRC-118

< ON-VEHICLE REPAIR >

[VDC/TCS/ABS]

ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

• To remove brake tube, use a flare nut wrench to prevent flare nuts and brake tube from being dam-

aged. To install, use flare nut crowfoot and torque wrench.

• Do not apply excessive impact to ABS actuator and electric unit (control unit), such as dropping it.
• Do not remove and install actuator by holding harness.
• After work is completed, bleed air from brake tube. Refer to

BR-13, "Bleeding Brake System"

• After installing harness connector in the ABS actuator and electric unit (control unit), make sure

connector is securely locked.

• After removing/replacing an ABS actuator and electric unit (control unit), be sure to perform the fol-

lowing procedure.

- Adjustment of steering angle sensor neutral position: Refer to

BRC-9, "ADJUSTMENT OF STEERING

ANGLE SENSOR NEUTRAL POSITION : Description"

- Calibration of yaw rate/side/decel G sensor: Refer to

BRC-10, "CALIBRATION OF YAW RATE/SIDE/

DECEL G SENSOR : Description"

- Calibration of pressure sensor: Refer to