Murano Cross Cabriolet Z51 (2013 year). Manual - part 17

REAR DISC BRAKE

BR-49

< REMOVAL AND INSTALLATION >

Place a wooden block as shown in the figure, and blow air from
union bolt mounting hole to remove piston and piston boot.

CAUTION:

Never get fingers caught in the piston.

Remove piston seal from cylinder body using suitable tool.

CAUTION:

Be careful not to damage a cylinder inner wall.

Remove bleeder valve and cap.

ASSEMBLY

Install bleeder valve and cap.

Apply polyglycol ether based lubricant to piston seal (1), and
install to cylinder body.

CAUTION:

Never reuse piston seal.

Apply rubber grease to piston boot (1). Cover the piston (2) end
with the piston boot, and then install cylinder side lip on the pis-
ton boot securely into the groove on cylinder body.

CAUTION:

Never reuse piston boot.

BRD0041D

JPFIA0038ZZ

JPFIA0039ZZ

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Revision: 2012 October

2013 Murano CrossCabriolet

BR-50

< REMOVAL AND INSTALLATION >

REAR DISC BRAKE

Apply brake fluid to piston (1). Push piston into cylinder body by
hand and push piston boot (2) 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.

Apply rubber grease to bushing, and install bushing to sliding pin
bolt.

Apply rubber grease to the sliding pin bolts and the sliding pin
boots, install sliding pin boots to torque member.

Install the cylinder body to the torque member and tighten the
sliding pin bolts to the specified torque. Refer to

BR-45, "BRAKE

PAD : Exploded View"

BRAKE CALIPER ASSEMBLY : Inspection

INFOID:0000000008459979

INSPECTION AFTER DISASSEMBLY

Cylinder Body

Check the inner wall of the cylinder for rust, wear, cracks or damage. Replace the cylinder if any abnormal
condition is detected.

CAUTION:

Always clean with new brake fluid. Never clean with mineral oil such as gasoline and light oil.

Torque Member

Check the torque member for rust, wear, cracks or damage. Replace the member if any abnormal condition is
detected.

Piston

Check the piston for rust, wear, cracks or damage. Replace the piston if any abnormal condition is detected.

CAUTION:

A piston sliding surface is plated. Never polish with sandpaper.

Sliding Pin Bolt and Sliding Pin Boot

Check the sliding pin bolts and sliding pin boots for rust, wear, cracks or damage. Replace the parts if any
abnormal condition is detected.

INSPECTION AFTER INSTALLATION

Check a drag of rear disc brake. If any drag is found, follow the procedure described below.

Remove brake pads.

Press the piston.

CAUTION:

• Never damage the piston boot.
• When replacing a pad with new one, check a brake fluid level in the reservoir tank because brake

fluid returns to master cylinder reservoir tank when pressing piston in.

NOTE:
Use a disc brake piston tool to easily press piston.

Install brake pads.

Depress the brake pedal several times.

Check a drag of rear disc brake again. If any drag is found, disassemble the cylinder body. Refer to

BR-

48, "BRAKE CALIPER ASSEMBLY : Disassembly and Assembly"

Burnish contact surfaces after refinishing or replacing disc rotors, or if a soft pedal occurs at very low mile-
age. Refer to

BR-16, "DISC ROTOR : Inspection and Adjustment"

JPFIA0041ZZ

Revision: 2012 October

2013 Murano CrossCabriolet

SERVICE DATA AND SPECIFICATIONS (SDS)

BR-51

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

General Specifications

INFOID:0000000008459980

FRONT CALIPER 1 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE

Unit: mm (in)

FRONT CALIPER 2 PISTON TYPE AND REAR CALIPER 1 PISTON TYPE

Unit: mm (in)

Brake Pedal

INFOID:0000000008459981

Unit: mm (in)

Brake Booster

INFOID:0000000008459982

Unit: mm (in)

Front brake

Cylinder bore diameter

63.6 (2.504)

Pad length

width

thickness

110.0

63.5

9.5 (4.37

2.500

0.374)

Rotor outer diameter

thickness

320

28.0 (12.60

1.102)

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

16.0 (12.13

0.630)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

Primary

228.5 (9.00)

Secondary

203 (7.99)

Recommended brake fluid

Refer to

MA-10, "Fluids and Lubricants"

Front brake

Cylinder bore diameter

45.0 (1.772)

Pad length

width

thickness

130.0

50.0

11.0 (5.12

1.969

0.433)

Rotor outer diameter

thickness

320

28.0 (12.60

1.102)

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

16.0 (12.13

0.630)

Master cylinder

Cylinder bore diameter

25.4 (1.0)

Control valve

Valve type

Electric brake force distribution

Brake booster

Diaphragm diameter

Primary

228.5 (9.00)

Secondary

203 (7.99)

Recommended brake fluid

Refer to

MA-10, "Fluids and Lubricants"

Item

Standard

Brake pedal height

197.1 – 207.1 (7.76 – 8.15)

Clearance between stopper rubber and stop lamp switch and ASCD brake switch threaded end

0.20 – 1.96 (0.0079 – 0.0772)

Brake pedal play

3.0 – 11.0 (0.118 – 0.433)

Depressed brake pedal height
[Depressing 490 N (50 kg, 110 lb) while turning the engine ON]

128 (5.04) or more

Item

Standard

Input rod length

127 (5.00)

Revision: 2012 October

2013 Murano CrossCabriolet

BR-52

< SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Front Disc Brake

INFOID:0000000008459983

Unit: mm (in)

Rear Disc Brake

INFOID:0000000008459984

Unit: mm (in)

Item

Limit

Brake pad

Wear thickness

2.0 (0.079)

Disc rotor

Wear thickness

26.0 (1.024)

Thickness variation (measured at 8 positions)

0.008 (0.0003)

Runout (with it attached to the vehicle)

0.040 (0.0016) or less

Item

Limit

Brake pad

Wear thickness

2.0 (0.079)

Disc rotor

Wear thickness

14.0 (0.551)

Thickness variation (measured at 8 positions)

0.020 (0.0008)

Runout (with it attached to the vehicle)

0.050 (0.0020) or less

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-1

BRAKES

SECTION

BRC

BRC

CONTENTS

BRAKE CONTROL SYSTEM

WITH VDC

PRECAUTION ...............................................

PRECAUTIONS ...................................................

Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

Service Procedure Precautions for Models with a
Pop-up Roll Bar .........................................................

Precaution for Battery Service ..................................

Precaution for Procedure without Cowl Top Cover

......

Precaution for Brake System ....................................

Precaution for Brake Control .....................................

Precaution for Harness Repair ..................................

PREPARATION ............................................

PREPARATION ...................................................

Commercial Service Tool ..........................................

SYSTEM DESCRIPTION ..............................

COMPONENT PARTS ........................................

Component Parts Location ........................................

Component Description .............................................

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

Wheel Sensor and Sensor Rotor ............................

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

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

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

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

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

SYSTEM .............................................................

System Description .................................................

Fail-Safe ..................................................................

VDC FUNCTION ........................................................

VDC FUNCTION : System Description ...................

TCS FUNCTION ........................................................

TCS FUNCTION : System Description ....................

ABS FUNCTION ........................................................

ABS FUNCTION : System Description ....................

EBD FUNCTION ........................................................

EBD FUNCTION : System Description ....................

DIAGNOSIS SYSTEM [ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)] .......

CONSULT Function .................................................

ECU DIAGNOSIS INFORMATION ..............

ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................

Reference Value ......................................................

Fail-Safe ..................................................................

DTC Inspection Priority Chart ..................................

DTC No. Index .........................................................

WIRING DIAGRAM ......................................

BRAKE CONTROL SYSTEM ...........................

Wiring Diagram ........................................................

BASIC INSPECTION ...................................

DIAGNOSIS AND REPAIR WORK FLOW .......

Work Flow ................................................................

Diagnostic Work Sheet ............................................

ADDITIONAL SERVICE WHEN REPLACING
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................

Description ...............................................................

Special Repair Requirement ....................................

ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION ...............................

Description ...............................................................

Work Procedure .......................................................

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-2

CALIBRATION OF DECEL G SENSOR ...........

Description ..............................................................

Work Procedure ......................................................

DTC/CIRCUIT DIAGNOSIS .........................

C1101, C1102, C1103, C1104 WHEEL SEN-
SOR ....................................................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1105, C1106, C1107, C1108 WHEEL SEN-
SOR ....................................................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1109 POWER AND GROUND SYSTEM .........

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1110 ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT) ....................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1111 ABS MOTOR, MOTOR RELAY SYS-
TEM ....................................................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1113, C1145, C1146 YAW RATE/SIDE/DE-
CEL G SENSOR ................................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1115 WHEEL SENSOR ...................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1116 STOP LAMP SWITCH ............................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

Component Inspection ............................................

C1120, C1122, C1124, C1126 IN ABS SOL .....

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1121, C1123, C1125, C1127 OUT ABS SOL ...

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1130 ENGINE SIGNAL ...................................

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1140 ACTUATOR RELAY SYSTEM ...............

DTC Logic ...............................................................

Diagnosis Procedure ..............................................

C1142 PRESS SENSOR ...................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1143 STEERING ANGLE SENSOR ...............

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1144 INCOMPLETE STEERING ANGLE
SENSOR ADJUSTMENT ..................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1155 BRAKE FLUID LEVEL SWITCH ...........

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

Component Inspection ............................................

C1160 INCOMPLETE DECEL G SENSOR
CALIBRATION ..................................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1161 INCOMPLETE SIDE G SENSOR CAL-
IBRATION ..........................................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1162 INCOMPLETE PRESSURE SENSOR
CALIBRATION ..................................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1164, C1165 CV SYSTEM ..............................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

C1166, C1167 SV SYSTEM ..............................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

U1000 CAN COMM CIRCUIT ............................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

U1002 SYSTEM COMM (CAN) .........................

Description ..............................................................

DTC Logic ...............................................................

Diagnosis Procedure ...............................................

POWER SUPPLY AND GROUND CIRCUIT .....

Diagnosis Procedure ...............................................

PARKING BRAKE SWITCH ..............................

Component Function Check ...................................

Diagnosis Procedure ...............................................

Component Inspection ............................................

VDC OFF SWITCH ............................................

Component Function Check ...................................

Diagnosis Procedure ...............................................

Component Inspection ............................................

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-3

BRC

ABS WARNING LAMP .......................................

Component Function Check ....................................

Diagnosis Procedure ...............................................

BRAKE WARNING LAMP .................................

Component Function Check ....................................

Diagnosis Procedure ...............................................

VDC WARNING LAMP .......................................

Component Function Check ....................................

Diagnosis Procedure ...............................................

VDC OFF INDICATOR LAMP ............................

Component Function Check ....................................

Diagnosis Procedure ...............................................

SYMPTOM DIAGNOSIS ..............................

EXCESSIVE ABS FUNCTION OPERATION
FREQUENCY .....................................................

Description ..............................................................

Diagnosis Procedure ...............................................

UNEXPECTED PEDAL REACTION ..................

Description ..............................................................

Diagnosis Procedure ...............................................

THE BRAKING DISTANCE IS LONG ................

Description ..............................................................

Diagnosis Procedure ...............................................

ABS FUNCTION DOES NOT OPERATE ...........

Description ..............................................................

Diagnosis Procedure ...............................................

PEDAL VIBRATION OR ABS OPERATION
SOUND OCCURS ..............................................

Description ..............................................................

Diagnosis Procedure ...............................................

VEHICLE JERKS DURING VDC/TCS/ABS
CONTROL ..........................................................

Description ..............................................................

Diagnosis Procedure ...............................................

NORMAL OPERATING CONDITION ...............

Description ...............................................................

REMOVAL AND INSTALLATION ...............

WHEEL SENSOR ..............................................

FRONT WHEEL SENSOR .........................................

FRONT WHEEL SENSOR : Exploded View ...........

FRONT WHEEL SENSOR : Removal and Instal-
lation ........................................................................

REAR WHEEL SENSOR ...........................................

REAR WHEEL SENSOR : Exploded View ..............

REAR WHEEL SENSOR : Removal and Installa-
tion ...........................................................................

SENSOR ROTOR ............................................

101

FRONT SENSOR ROTOR .......................................

101

FRONT SENSOR ROTOR : Exploded View .........

101

FRONT SENSOR ROTOR : Removal and Instal-
lation ......................................................................

101

REAR SENSOR ROTOR .........................................

101

REAR SENSOR ROTOR : Exploded View ............

101

REAR SENSOR ROTOR : Removal and Installa-
tion .........................................................................

101

ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) ...........................................

102

Exploded View .......................................................

102

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

102

YAW RATE/SIDE/DECEL G SENSOR ...........

104

Exploded View .......................................................

104

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

104

STEERING ANGLE SENSOR .........................

105

Exploded View .......................................................

105

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

105

VDC OFF SWITCH ..........................................

106

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

106

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-4

< PRECAUTION >

[WITH VDC]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000008462472

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 AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that 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 “SRS AIR BAG”.

• 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

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Service Procedure Precautions for Models with a Pop-up Roll Bar

INFOID:0000000008462473

WARNING:

Always observe the following items for preventing accidental activation.
• Risk of passenger injury or death may increase if the pop-up roll bar does not deploy during a roll

over collision. In order to reduce the chance of an incident where the pop-up roll bar is inoperative,
all maintenance must be performed by a NISSAN or INFINITI dealer.

• Before removing and installing the pop-up roll bar component parts and harness, always turn the

ignition switch OFF, disconnect the battery negative terminal, and wait for 3 minutes or more. (The
purpose of this operation is to discharge electricity that is accumulated in the auxiliary power supply
circuit in the air bag diagnosis sensor unit.)

• When repairing, removing, and installing a pop-up roll bar, always refer to SRS AIR BAG and SRS

AIR BAG CONTROL warnings in the Service Manual.

Precaution for Battery Service

INFOID:0000000008462474

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Revision: 2012 October

2013 Murano CrossCabriolet

PRECAUTIONS

BRC-5

< PRECAUTION >

[WITH VDC]

BRC

Precaution for Procedure without Cowl Top Cover

INFOID:0000000008462475

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

Precaution for Brake System

INFOID:0000000008462476

WARNING:

Since dust covering the front and rear brakes has an affect on human body, the dust must be removed
with a dust collector. Never splatter the dust with an air blow gun.

CAUTION:

• Brake fluid use refer to

MA-10, "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) harness connector or the bat-
tery negative terminal before performing the work.

• Check that no brake fluid leakage is present after replacing

the parts.

Precaution for Brake Control

INFOID:0000000008462477

• 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 the 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 warning 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.

PIIB3706J

JPFIA0001ZZ

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-6

< PRECAUTION >

[WITH VDC]

PRECAUTIONS

Precaution for Harness Repair

INFOID:0000000008462478

• Solder the repair part, and wrap it with tape. [Twisted wire fray

must be 110 mm (4.33 in) or less.]

• Never bypass the repair point with wire. (If it is bypassed, the turn-

out point cannot be separated and the twisted wire characteristics
are lost.)

SKIB8766E

SKIB8767E

Revision: 2012 October

2013 Murano CrossCabriolet

PREPARATION

BRC-7

< PREPARATION >

[WITH VDC]

BRC

PREPARATION

Commercial Service Tool

INFOID:0000000008462479

Tool name

Description

Power tool

Loosening bolts and nuts

PBIC0190E

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-8

< SYSTEM DESCRIPTION >

[WITH VDC]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000008462480

JSFIA0529ZZ

Revision: 2012 October

2013 Murano CrossCabriolet

COMPONENT PARTS

BRC-9

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

Component Description

INFOID:0000000008462481

ABS Actuator and Electric Unit (Control Unit)

INFOID:0000000008462482

Electric unit (control unit) is integrated with actuator and comprehensively controls VDC function, TCS func-
tion, ABS function and EBD function.

ELECTRIC UNIT (CONTROL UNIT)

• Brake fluid pressure, engine and transaxle are controlled according to signals from each sensor.
• If malfunction is detected, the system enters fail-safe mode.

ACTUATOR

The following components are integrated with ABS actuator.

Pump

The pump returns the brake fluid stored in the reservoir to the master cylinder by reducing the pressure.

Motor

The motor drives the pump according to the signals transmitted by the ABS actuator and electric unit (control
unit).

Steering angle sensor

ABS warning lamp

Brake warning lamp

VDC OFF indicator lamp

VDC warning lamp

ABS actuator and electric unit (con-
trol unit)

Front wheel sensor

Yaw rate/side/decel G sensor

VDC OFF switch

10. Rear wheel sensor

Back of spiral cable assembly

Combination meter

Engine room (right side)

Steering knuckle

Under center console

Instrument driver lower panel

Rear axle

Component parts

Reference

ABS actuator and electric unit (control unit)

Pump

BRC-9, "ABS Actuator and Electric Unit

(Control Unit)"

Motor

Actuator relay (Main relay)

ABS IN valve

ABS OUT valve

Pressure sensor

Motor relay

Cut valve 1, Cut valve2

Suction Valve 1, Suction Valve 2

Wheel sensor

BRC-10, "Wheel Sensor and Sensor Ro-

tor"

Stop lamp switch

BRC-10, "Stop Lamp Switch"

Steering angle sensor

BRC-10, "Steering Angle Sensor"

Yaw rate/side/decel G sensor

BRC-10, "Yaw Rate/Side/Decel G Sen-

sor"

Brake fluid level switch

BRC-10, "Brake Fluid Level Switch"

VDC OFF switch

BRC-10, "VDC OFF Switch"

ABS warning lamp

BRC-11, "System Description"

Brake warning lamp

VDC warning lamp

VDC OFF indicator lamp

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-10

< SYSTEM DESCRIPTION >

[WITH VDC]

COMPONENT PARTS

Motor Relay

Activates or deactivates motor according to the signals transmitted by the ABS actuator and electric unit (con-
trol unit).

Actuator Relay (Main Relay)

Activates or deactivates each solenoid valve according to the signals transmitted by the ABS actuator and
electric unit (control unit).

ABS IN Valve

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).

ABS OUT Valve

The solenoid valve increases, holds or decreases the fluid pressure of each brake caliper according to the sig-
nals transmitted by the ABS actuator and electric unit (control unit).

Cut Valve 1, Cut Valve 2

The cut valve shuts off the normal brake fluid path from the master cylinder, when VDC/TCS is activated.

Suction Valve 1, Suction Valve 2

The suction valve supplies the brake fluid from the master cylinder to the pump, when VDC/TCS is activated.

Pressure Sensor

The pressure sensor converts the brake fluid pressure to an electric signal and transmits it to the ABS actuator
and electric unit (control unit). [The pressure sensor is integrated in the ABS actuator and electric unit (control
unit).]

Wheel Sensor and Sensor Rotor

INFOID:0000000008462483

When the sensor rotor rotates, the magnetic field changes. It converts the magnetic field changes to current
signals (rectangular wave) and transmits them to the ABS actuator and electric unit (control unit).

Stop Lamp Switch

INFOID:0000000008462484

The stop lamp switch transmits the stop lamp switch signal (ON/OFF) to the ABS actuator and electric unit
(control unit).

Steering Angle Sensor

INFOID:0000000008462485

The steering angle sensor detects the rotation amount, angular velocity and direction of the steering wheel,
and transmits the data to the ABS actuator and electric unit (control unit) via CAN communication.

Yaw Rate/Side/Decel G Sensor

INFOID:0000000008462486

Yaw rate/side/decel G sensor detects yaw rate/side/decel G affecting the vehicle, and transmits the data to the
ABS actuator and electric unit (control unit) as an analog voltage signal.

Brake Fluid Level Switch

INFOID:0000000008462487

The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actu-
ator and electric unit (control unit).

VDC OFF Switch

INFOID:0000000008462488

VDC OFF switch can deactivate (turn OFF) the VDC/TCS function by pressing the VDC OFF switch.

Revision: 2012 October

2013 Murano CrossCabriolet

SYSTEM

BRC-11

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

SYSTEM

System Description

INFOID:0000000008462489

• The system switches fluid pressure of each brake caliper to increase, to hold or to decrease according to

signals from control unit in ABS actuator and electric unit (control unit). This control system is applied to
VDC function, TCS function, ABS function and EBD function.

• Fail-safe function is available for each function and is activated by each function when system malfunction

occurs.

SYSTEM DIAGRAM

CONDITION FOR TURN ON THE WARNING LAMP

ABS Warning Lamp

: ON –: OFF

Brake Warning Lamp

: ON –: OFF

NOTE:

JSFIA1149GB

Condition

ABS warning lamp

Ignition switch OFF

–

For 2 seconds after turning ignition switch ON

2 seconds later after turning ignition switch ON

–

ABS function is malfunctioning.

EBD function is malfunctioning.

Condition

Brake warning lamp (Note 1)

Ignition switch OFF

–

For 2 seconds after turning ignition switch ON

(Note 2)

2 seconds later after turning ignition switch ON

(Note 2)

EBD function is malfunctioning.

Revision: 2012 October

2013 Murano CrossCabriolet

BRC-12

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

• 1: Brake warning lamp will turn ON in case of parking brake operation (when switch is ON) or of brake fluid level switch operation

(when brake fluid is insufficient).

• 2: After starting the engine, brake warning lamp is turned off.

VDC Warning Lamp

: ON

: Blink –: OFF

CONDITION FOR TURN ON THE INDICATOR LAMP

VDC OFF Indicator Lamp

: ON –: OFF

Fail-Safe

INFOID:0000000008462490

ABS, EBD SYSTEM

If ABS malfunction electrically, ABS warning lamp and VDC warning lamp will turn ON. If EBD malfunction
electrically, brake warning lamp, ABS warning lamp and VDC warning lamp will turn ON. Simultaneously, the
VDC/TCS/ABS become one of the following conditions of the fail-safe function.
• For malfunction of ABS, only the EBD is activated and the condition of vehicle is the same condition of vehi-

cles without TCS/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.

• For malfunction of EBD, EBD and ABS become inoperative, and the condition of vehicle is the same as the

condition of vehicles without TCS/ABS, EBD system.

VDC/TCS

If VDC/TCS/ABS system malfunction electrically, VDC warning lamp is turned on, and the condition of vehicle
is the same as the condition of vehicles without VDC/TCS control.

CAUTION:

If the Fail-Safe function is activated, then perform self-diagnosis for “ABS” with CONSULT.

VDC FUNCTION

VDC FUNCTION : System Description

INFOID:0000000008462491

• In addition to the TCS/ABS function, the driver steering amount and brake operation amount are detected by

the steering angle sensor and pressure sensor, and the vehicle

′

s driving status (amount of under steering/

over steering) is determined by the information from the yaw rate/side/decel G sensor, wheel sensor, etc.,
and this information is used to improve vehicle stability by controlling the braking and engine power to all
four wheels.

Condition

VDC warning lamp

Ignition switch OFF

–

For 2 seconds after turning ignition switch ON

2 seconds later after turning ignition switch ON

–

VDC/TCS is activated while driving.

VDC/TCS function is malfunctioning.

ABS function is malfunctioning.

EBD function is malfunctioning.

Condition

VDC OFF indicator lamp

Ignition switch OFF

–

For 2 seconds after turning ignition switch ON

2 seconds later after turning ignition switch ON

–

VDC OFF switch turned ON. (VDC function is OFF.)

VDC/TCS function is malfunctioning.

–

ABS function is malfunctioning.

–

EBD function is malfunctioning.

–

Revision: 2012 October

2013 Murano CrossCabriolet

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