Murano Cross Cabriolet Z51 (2011 year). Manual — part 9
BRC-1
BRAKES
C
D
E
G
H
I
J
K
L
M
SECTION
BRC
A
B
BRC
N
O
P
CONTENTS
BRAKE CONTROL SYSTEM
WITH VDC
PRECAUTION . . . . . . . . . . . ...
PRECAUTIONS . . . . . . . . . . . . ...
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 . . . . . . . . . . .
Description . . . . . . . . . . . . . . . ...
Special Repair Requirement . . . . . . . . .
ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION . . . . . . . ...
Description . . . . . . . . . . . . . . . ...
Work Procedure . . . . . . . . . . . . . ...
Revision: 2012 March
2011 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 March
2011 Murano CrossCabriolet
BRC-3
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ABS WARNING LAMP . . . . . . . . . ...
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
BRAKE WARNING LAMP . . . . . . . . .
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
VDC OFF INDICATOR LAMP . . . . . . .
Component Function Check . . . . . . . . .
Diagnosis Procedure . . . . . . . . . . . ...
SLIP 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 . . . . . . . . . . .
FRONT SENSOR ROTOR . . . . . . . . . ...
FRONT SENSOR ROTOR : Exploded View . . .
FRONT SENSOR ROTOR : Removal and Instal-
lation . . . . . . . . . . . . . . . . . ..
REAR SENSOR ROTOR . . . . . . . . . . .
REAR SENSOR ROTOR : Exploded View . . .
REAR SENSOR ROTOR : Removal and Installa-
tion . . . . . . . . . . . . . . . . . . .
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) . . . . . . . . . . ...
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
YAW RATE/SIDE/DECEL G SENSOR . . ...
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
STEERING ANGLE SENSOR . . . . . . .
Exploded View . . . . . . . . . . . . . ...
Removal and Installation . . . . . . . . . ...
VDC OFF SWITCH . . . . . . . . . . ..
Removal and Installation . . . . . . . . . ...
Revision: 2012 March
2011 Murano CrossCabriolet
BRC-4
< PRECAUTION >
[WITH VDC]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000007227862
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:0000000007256882
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:0000000007256883
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 March
2011 Murano CrossCabriolet
PRECAUTIONS
BRC-5
< PRECAUTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Precaution for Procedure without Cowl Top Cover
INFOID:0000000007227865
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:0000000006941650
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) connector or the battery nega-
tive terminal before performing the work.
• Check that no brake fluid leakage is present after replacing
the parts.
Precaution for Brake Control
INFOID:0000000006941651
• 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.
PIIB3706J
JPFIA0001ZZ
Revision: 2012 March
2011 Murano CrossCabriolet
BRC-6
< PRECAUTION >
[WITH VDC]
PRECAUTIONS
Precaution for Harness Repair
INFOID:0000000007229484
• 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 March
2011 Murano CrossCabriolet
PREPARATION
BRC-7
< PREPARATION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
PREPARATION
PREPARATION
Commercial Service Tool
INFOID:0000000007227858
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0190E
Revision: 2012 March
2011 Murano CrossCabriolet
BRC-8
< SYSTEM DESCRIPTION >
[WITH VDC]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000006941490
JSFIA0529ZZ
Revision: 2012 March
2011 Murano CrossCabriolet
COMPONENT PARTS
BRC-9
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Description
INFOID:0000000006941491
ABS Actuator and Electric Unit (Control Unit)
INFOID:0000000007227881
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).
1.
Steering angle sensor
2.
ABS warning lamp
3.
Brake warning lamp
4.
VDC OFF indicator lamp
5.
SLIP indicator lamp
6.
ABS actuator and electric unit (con-
trol unit)
7.
Front wheel sensor
8.
Yaw rate/side/decel G sensor
9.
VDC OFF switch
10. Rear wheel sensor
A.
Back of spiral cable assembly
B.
Combination meter
C.
Engine room (right side)
D.
Steering knuckle
E.
Under center console
F.
Instrument driver lower panel
G.
Rear axle
Component parts
Reference
ABS actuator and electric unit (control unit)
Pump
BRC-9, "ABS Actuator and Electric 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-
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-
Brake fluid level switch
BRC-10, "Brake Fluid Level Switch"
VDC OFF switch
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
Revision: 2012 March
2011 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:0000000006941505
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:0000000006941539
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:0000000006941568
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:0000000006941529
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:0000000006941578
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:0000000006941619
VDC OFF switch can deactivate (turn OFF) the VDC/TCS function by pressing the VDC OFF switch.
Revision: 2012 March
2011 Murano CrossCabriolet
SYSTEM
BRC-11
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
SYSTEM
System Description
INFOID:0000000007227889
• 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:
JSFIA0210GB
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 March
2011 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.
CONDITION FOR TURN ON THE INDICATOR LAMP
VDC OFF Indicator Lamp
×
: ON –: OFF
SLIP Indicator Lamp
×
: ON
: Blink –: OFF
Fail-Safe
INFOID:0000000007227891
ABS, EBD SYSTEM
If ABS malfunction electrically, ABS warning lamp, VDC OFF indicator lamp, SLIP indicator lamp will turn on. If
EBD malfunction electrically, brake warning lamp, ABS warning lamp, VDC OFF indicator lamp and SLIP indi-
cator 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 OFF indicator lamp, SLIP indicator lamp are 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:0000000006941489
• 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.,
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.
×
Condition
SLIP indicator 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.
×
Revision: 2012 March
2011 Murano CrossCabriolet
SYSTEM
BRC-13
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
and this information is used to improve vehicle stability by controlling the braking and engine power to all
four wheels.
• During VDC operation, it informs driver of system operation by blinking the SLIP indicator lamp.
• Electrical system diagnosis by CONSULT is available.
TCS FUNCTION
TCS FUNCTION : System Description
INFOID:0000000006941493
• The wheel spin of the drive wheels is detected by the ABS actuator and electric unit (control unit) using the
wheel speed signals from the four wheels, so if wheel spin occurs, the drive wheel right and left brake fluid
pressure control and engine fuel cut are conducted while the throttle valve opening is restricted to reduce the
engine torque and decrease the amount of wheel spin. In addition, the throttle opening is controlled to
achieve the optimum engine torque.
• During TCS operation, TCS informs driver of system operation by blinking the SLIP indicator lamp.
• Electrical system diagnosis by CONSULT is available.
ABS FUNCTION
ABS FUNCTION : System Description
INFOID:0000000006941497
• The Anti-Lock Braking System detects wheel revolution while braking, and it improves handling stability dur-
ing sudden braking by electrically preventing 4 wheel lock. Maneuverability is also improved for avoiding
obstacles.
• Electrical system diagnosis by CONSULT is available.
EBD FUNCTION
EBD FUNCTION : System Description
INFOID:0000000006941501
• Electronic Brake force Distribution detects subtle slippages between front and rear wheels during braking,
and it improves handling stability by electronically controlling brake fluid pressure which results in reduced
rear wheel slippage.
• Electrical system diagnosis by CONSULT is available.
Revision: 2012 March
2011 Murano CrossCabriolet
BRC-14
< SYSTEM DESCRIPTION >
[WITH VDC]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
CONSULT Function
INFOID:0000000006941504
APPLICATION ITEMS
CONSULT can display each diagnostic item using the diagnostic test modes as following.
WORK SUPPORT
SELF DIAGNOSTIC RESULT
Operation Procedure
Before performing the self-diagnosis for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/
h (19 MPH) or more for approximately 1 minute.
Display Item List
How to Erase Self-diagnosis Results
After erasing DTC memory for “ABS” with CONSULT, start the engine and drive the vehicle at 30 km/h (19
MPH) or more for approximately 1 minute as the final inspection, and make sure that the ABS warning lamp,
VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp turn OFF.
CAUTION:
If memory cannot be erased, perform applicable diagnosis.
NOTE:
• When the wheel sensor malfunctions, after inspecting the wheel sensor system, the ABS warning lamp,
VDC OFF indicator lamp, SLIP indicator lamp and brake warning lamp will not turn OFF even when the sys-
tem is normal unless the vehicle is driving at approximately 30 km/h (19 MPH) or more for approximately 1
minute.
• 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).
• VDC OFF switch should not stay “ON” position.
DATA MONITOR
Display Item List
Mode
Function
Work support
This mode enables a technician to adjust some devices faster and more accurately by following the indica-
tions on CONSULT.
Self diagnostic result
Self-diagnostic results can be read and erased quickly.
Data monitor
Input/Output data in the ABS actuator and electric unit (control unit) can be read.
Active test
CONSULT drives some actuators apart from the ABS actuator and electric unit (control unit) and also shifts
some parameters in a specified range.
ECU identification
ABS actuator and electric unit (control unit) part number can be read.
Item
Description
ST ANGLE SENSOR ADJUSTMENT
Adjusts the neutral position of the steering angle sensor.
DECEL G SEN CALIBRATION
Calibrates decel G sensor.
Revision: 2012 March
2011 Murano CrossCabriolet
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
BRC-15
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
×
: Applicable
: Optional item
Monitor item (Unit)
SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALS
MAIN SIGNALS
FR LH SENSOR
[km/h (MPH)]
×
×
Wheel speed
FR RH SENSOR
[km/h (MPH)]
×
×
RR LH SENSOR
[km/h (MPH)]
×
×
RR RH SENSOR
[km/h (MPH)]
×
×
STOP LAMP SW
(On/Off)
×
×
Stop lamp switch signal status
BATTERY VOLT
(V)
×
×
Battery voltage supplied to the ABS actuator and electric unit (control
unit)
GEAR
×
×
Gear position determined by TCM
R POSI SIG
(On/Off)
Shift position judged by shift position (R) signal
N POSI SIG
(On/Off)
Shift position judged by shift position (N) signal
P POSI SIG
(On/Off)
Shift position judged by shift position (P) signal
SLCT LVR POSI
×
×
Shift position judged by shift position signal
OFF SW
(On/Off)
×
×
VDC OFF switch
YAW RATE SEN
(d/s)
×
×
Yaw rate detected by yaw rate/side/decel G sensor
DECEL G-SEN
(G)
×
×
Decel G detected by yaw rate/side/decel G sensor
ACCEL POS SIG
(%)
×
Throttle actuator opening/closing is displayed (Linked with accelera-
tor pedal)
SIDE G-SENSOR
(m/s
2
)
×
Transverse G detected by yaw rate/side/decel G sensor
STR ANGLE SIG
(
°
)
×
Steering angle detected by steering angle sensor
ENGINE RPM
[tr/min (rpm)]
×
Engine speed
FLUID LEV SW
(On/Off)
×
Brake fluid level switch
PRESS SENSOR
(bar)
×
Brake fluid pressure detected by pressure sensor
Revision: 2012 March
2011 Murano CrossCabriolet
BRC-16
< SYSTEM DESCRIPTION >
[WITH VDC]
DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL
UNIT)]
FR RH IN SOL
(On/Off)
×
Operation status of each ABS IN valve or each ABS OUT valve
FR RH OUT SOL
(On/Off)
×
FR LH IN SOL
(On/Off)
×
FR LH OUT SOL
(On/Off)
×
RR RH IN SOL
(On/Off)
×
RR RH OUT SOL
(On/Off)
×
RR LH IN SOL
(On/Off)
×
RR LH OUT SOL
(On/Off)
×
MOTOR RELAY
(On/Off)
×
Motor and motor relay operation
ACTUATOR RLY
(On/Off)
×
Actuator relay operation
ABS WARN LAMP
(On/Off)
×
ABS warning lamp
OFF LAMP
(On/Off)
×
VDC OFF indicator lamp
SLIP/VDC LAMP
(On/Off)
×
SLIP indicator lamp
CV1
(On/Off)
Cut valve 1 monitor
CV2
(On/Off)
Cut valve 2 monitor
SV1
(On/Off)
Suction valve 1 monitor
SV2
(On/Off)
Suction valve 2 monitor
EBD SIGNAL
(On/Off)
EBD operation
ABS SIGNAL
(On/Off)
ABS operation
TCS SIGNAL
(On/Off)
TCS operation
VDC SIGNAL
(On/Off)
VDC operation
EBD FAIL SIG
(On/Off)
EBD fail-safe status
ABS FAIL SIG
(On/Off)
ABS fail-safe status
TCS FAIL SIG
(On/Off)
TCS fail-safe status
VDC FAIL SIG
(On/Off)
VDC fail-safe status
Monitor item (Unit)
SELECT MONITOR ITEM
Remarks
ECU INPUT
SIGNALS
MAIN SIGNALS
Revision: 2012 March
2011 Murano CrossCabriolet
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст