Content .. 53 54 55 56 ..

Nissan Juke (2016 year). Service Repair Manual - part 55

SYSTEM

BRC-33

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

*1: Communication line between yaw rate/side/decel G sensor and ABS actuator and electric unit (control unit)

*2: Models with CVT

*3: AWD models

ABS FUNCTION
ABS FUNCTION : System Description

INFOID:0000000012199666

• By preventing wheel lock through brake force (brake fluid pressure) control that is electronically controlled by

detecting wheel speed during braking, stability during emergency braking is improved so that obstacles can

be easily bypassed by steering operation.

• During braking, control units calculates wheel speed and pseudo-vehicle speed, and transmits pressure

increase, hold or decrease signals to actuator portion according to wheel slip status.

Component

Signal description

Yaw rate/side/decel G sensor

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via com-
munication line

• Yaw rate signal
• Side G sensor signal
• Decel G sensor signal

ECM

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• Target throttle position signal

TCM

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• N range signal
• P range signal
• R range signal
• Current gear position signal

AWD control module

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current AWD mode signal

Steering angle sensor

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal

Combination meter

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Brake fluid level switch signal
Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• VDC warning lamp signal
• VDC OFF indicator lamp signal

Revision: November 2015

2016 JUKE

BRC-34

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

• The following effects are obtained by preventing wheel lock during

braking.

- Vehicle tail slip is prevented during braking when driving straight.

- Understeer and oversteer tendencies are moderated during brak-

ing driving on a corner.

- Obstacles may be easily bypassed by steering operation during

braking.

• CONSULT can be used to diagnose the system diagnosis.

• Fail-safe function is adopted. When a malfunction occurs in ABS

function, the control is suspended for VDC function, TCS function,

ABS function and brake limited slip differential (BLSD) function.

The vehicle status becomes the same as models without VDC

function, TCS function, ABS function and brake limited slip differ-

ential (BLSD) function. However, EBD function is operated nor-

mally. Refer to

BRC-25, "Fail-safe"

NOTE:

• ABS has the characteristic as described here, but it is not the

device that helps reckless driving.

• To stop vehicle efficiently, ABS does not operate and ordinary

brake operates at low speed [approx. 10 km/h (6.2 MPH) or less,

but differs subject to road conditions).

• Self-diagnosis is performed immediately after when engine starts

and when vehicle initially is driven [by vehicle speed approx. 15

km/h (9.3 MPH)]. Motor sounds are generated during self-diagno-

sis. In addition, brake pedal may be felt heavy when depressing brake pedal lightly. These symptoms are not

malfunctions.

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

JPFIC0140GB

JPFIC0144GB

Revision: November 2015

2016 JUKE

SYSTEM

BRC-35

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

EBD FUNCTION
EBD FUNCTION : System Description

INFOID:0000000012199667

• By preventing rear wheel slip increase through rear wheel brake force (brake fluid pressure) control that is

electronically controlled when slight skip on front and rear wheels are detected during braking, stability dur-

ing braking is improved.

• EBD function is expanded and developed from conventional ABS function and corrects rear wheel brake

force to appropriate level by electronic control according to load weight (number of passengers).

• During braking, control unit portion compares slight slip on front

and rear wheels by wheel speed sensor signal, transmits drive sig-

nal to actuator portion when rear wheel slip exceeds front wheel

slip for the specified value or more, and controls rear wheel brake

force (brake fluid pressure) so that increase of rear wheel slip is

prevented and slips on front wheel and rear wheel are nearly

equalized. ABS control is applied when slip on each wheel

increases and wheel speed is the threshold value of ABS control or

less.

• CONSULT can be used to diagnose the system diagnosis.

• Fail-safe function is adopted. When a malfunction occurs in EBD

function, the control is suspended for VDC function, TCS function,

ABS function, EBD function and brake limited slip differential

(BLSD) function. The vehicle status becomes the same as models

without VDC function, TCS function, ABS function, EBD function

and brake limited slip differential (BLSD) function. Refer to

BRC-

25, "Fail-safe"

Component

Signal description

Combination meter

Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• VDC warning lamp signal
• ABS warning lamp signal

JPFIC0142GB

JPFIC0143GB

Revision: November 2015

2016 JUKE

BRC-36

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) FUNCTION
BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) FUNCTION : System Description

INFOID:0000000012199668

• LH and RH driving wheel spin is always monitored. If necessary, appropriate brake force is independently

applied to LH or RH driving wheel so that one-sided wheel spin is avoided and traction is maintained. Mainly

starting ability is improved.

• Brake limited slip differential (BLSD) function operates while VDC function is in non-operational status (OFF)

by VDC OFF switch.

• VDC warning lamp blinking while brake limited slip differential (BLSD) function is in operation and indicates

to the driver that the function is in operation.

• Slight vibrations are felt on the brake pedal and the operation noises occur, when brake limited slip differen-

tial (BLSD) function operates. This is not a malfunction because it is caused by brake limited slip differential

(BLSD) function that is normally operated.

• Fail-safe function is adopted. When a malfunction occurs in brake limited slip differential (BLSD) function,

the control is suspended for VDC function, TCS function and brake limited slip differential (BLSD) function.

The vehicle status becomes the same as models without VDC function, TCS function and brake limited slip

differential (BLSD) function. However, ABS function and EBD function are operated normally. Refer to

BRC-

25, "Fail-safe"

SYSTEM DIAGRAM

NOTE:

• TCM is CVT models only.

JPFIC0144GB

Component

Signal description

Combination meter

Mainly receives the following signals from ABS actuator and electric unit (control unit) via CAN
communication.
• VDC warning lamp signal
• ABS warning lamp signal
• Brake warning lamp signal

Revision: November 2015

2016 JUKE

SYSTEM

BRC-37

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

• AWD control module is AWD models only.

INPUT SIGNAL AND OUTPUT SIGNAL

Major signal transmission between each unit via communication lines is shown in the following table.

JSFIA0654GB

Component

Signal description

Yaw rate/side/decel G sensor

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via com-
munication line

• Yaw rate signal
• Side G sensor signal
• Decel G sensor signal

ECM

TCM

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• N range signal
• P range signal
• R range signal
• Current gear position signal

AWD control module

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Current AWD mode signal

Revision: November 2015

2016 JUKE

BRC-38

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

*1: Communication line between yaw rate/side/decal G sensor and ABS actuator and electric unit (control unit)

*2: Models with CVT

*3: AWD models

Steering angle sensor

Mainly transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Steering angle sensor signal

Combination meter

Component

Signal description

Revision: November 2015

2016 JUKE

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

BRC-39

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

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

CONSULT Function

INFOID:0000000012199669

APPLICATION ITEMS

CONSULT can display each diagnostic item using the diagnostic test modes as follows.

*1: The following diagnosis information is erased by erasing.
• DTC
• Freeze frame data (FFD)
*2: Although “Function Test” is selectable, do not use its.

ECU IDENTIFICATION

ABS actuator and electric unit (control unit) part number can be read.

SELF DIAGNOSTIC RESULT

Refer to

BRC-50, "DTC Index"

When “CRNT” is displayed on self-diagnosis result

• The system is presently malfunctioning.

When “PAST” is displayed on self-diagnosis result

• System malfunction in the past is detected, but the system is presently normal.

Freeze frame data (FFD)

When DTC is detected, a vehicle state shown below is recorded and displayed on CONSULT.

DATA MONITOR

NOTE:

The following table includes information (items) inapplicable to this vehicle. For information (items) applicable

to this vehicle, refer to CONSULT display items.

: Applicable

Mode

Function description

ECU identification

Parts number of ABS actuator and electric unit (control unit) can be read.

Self Diagnostic Result

Self-diagnostic results and freeze frame data 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

Diagnostic Test Mode in which CONSULT drives some actuators apart from the ABS actuator and elec-
tric unit (control unit) and also shifts some parameters in a specified range.

Function Test

This mode can show results of self-diagnosis of ECU with either “OK” or “NG”. For engine, more prac-
tical tests regarding sensors/switches and/or actuators are available.

Work support

Components can be quickly and accurately adjusted.

Item name

Display item

IGN counter
(0

−

39)

The number of times that ignition switch is turned ON after the DTC is detected is displayed.
• When “0” is displayed: It indicates that the system is presently malfunctioning.
• When except “0” is displayed: It indicates that system malfunction in the past is detected, but the system is pres-

ently normal.

NOTE:

Each time when ignition switch is turned OFF to ON, numerical number increases in 1

→

3...38

→

39. When

the operation number of times exceeds 39, the number do not increase and “39” is displayed until self-diagnosis
is erased.

Item (Unit)

Monitor item selection

Note

ECU INPUT SIGNALS

MAIN SIGNALS

FR LH SENSOR
[km/h (MPH)]

Wheel speed calculated by front LH wheel sensor is dis-
played.

FR RH SENSOR
[km/h (MPH)]

Wheel speed calculated by front RH wheel sensor is dis-
played.

Revision: November 2015

2016 JUKE

BRC-40

< SYSTEM DESCRIPTION >

[WITH VDC]

DIAGNOSIS SYSTEM [ABS ACTUATOR AND ELECTRIC UNIT (CONTROL

UNIT)]

RR LH SENSOR
[km/h (MPH)]

Wheel speed calculated by rear LH wheel sensor is dis-
played.

RR RH SENSOR
[km/h (MPH)]

Wheel speed calculated by rear RH wheel sensor is dis-
played.

DECEL G-SEN
(G)

Decel G detected by decel G sensor is displayed.

FR RH IN SOL
(On/Off)

Operation status of front RH wheel ABS IN valve is dis-
played.

FR RH OUT SOL
(On/Off)

Operation status of front RH wheel ABS OUT valve is dis-
played.

FR LH IN SOL
(On/Off)

Operation status of front LH wheel ABS IN valve is dis-
played.

FR LH OUT SOL
(On/Off)

Operation status of front LH wheel ABS OUT valve is dis-
played.

RR RH IN SOL
(On/Off)

Operation status of rear RH wheel ABS IN valve is dis-
played

RR RH OUT SOL
(On/Off)

Operation status of rear RH wheel ABS OUT valve is dis-
played.

RR LH IN SOL
(On/Off)

Operation status of rear LH wheel ABS IN valve is dis-
played.

RR LH OUT SOL
(On/Off)

Operation status of rear LH wheel ABS OUT valve is dis-
played.

EBD WARN LAMP
(On/Off)

Brake warning lamp ON/OFF status is displayed.

STOP LAMP SW
(On/Off)

Stop lamp switch signal input status is displayed.

MOTOR RELAY
(On/Off)

ABS motor and motor relay status is displayed.

ACTUATOR RLY
(On/Off)

ABS actuator relay status is displayed.

ABS WARN LAMP
(On/Off)

ABS warning lamp ON/OFF status is displayed.

OFF LAMP
(On/Off)

VDC OFF indicator lamp ON/OFF status is displayed.

OFF SW
(On/Off)

VDC OFF switch signal input status is displayed.

SLIP/VDC LAMP
(On/Off)

VDC warning lamp ON/OFF status is displayed.

BATTERY VOLT
(V)

Voltage supplied to ABS actuator and electric unit (control
unit) is displayed.

GEAR

Current gear position judged from current gear position
signal is displayed.

ENGINE SPEED
[tr/min (rpm)]

Engine speed status is displayed.

YAW RATE SEN
(d/s)

Yaw rate detected by yaw rate sensor is displayed.

R POSI SIG
(On/Off)

R range signal input status judged from R range signal is
displayed.

4WD MODE MON
(2WD/AUTO)

AWD control status is displayed.

N POSI SIG
(On/Off)

N range signal input status judged from N range signal is
displayed.

Item (Unit)

Monitor item selection

Note

ECU INPUT SIGNALS

MAIN SIGNALS

Revision: November 2015

2016 JUKE

Content .. 53 54 55 56 ..