Nissan Juke (2012 year). Service Repair Manual

SYSTEM

BRC-19

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

During pressure front RH brake caliper increases

• When the cut valve 2 and the ABS IN valve opens, brake fluid is supplied to the front RH brake caliper from

the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.

During pressure front LH brake caliper increases

• When the cut valve 1 and the ABS IN valve opens, brake fluid is supplied to the front LH brake caliper from

the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.

During pressure rear RH brake caliper increases

• When the cut valve 1 and the ABS IN valve opens, brake fluid is supplied to the rear RH brake caliper from

the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.

During pressure rear LH brake caliper increases

• When the cut valve 2 and the ABS IN valve opens, brake fluid is supplied to the rear LH brake caliper from

the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.

When ABS Function is Starts Operating (During Pressure Holds)

Suction valve 1

Power supply is not supplied (close)

Suction valve 2

Power supply is not supplied (close)

ABS IN valve

Power supply is not supplied (open)

ABS OUT valve

Power supply is not supplied (close)

Each brake caliper (fluid pressure)

—

Pressure increases

Name

Not activated

During pressure increases

JSFIA0650GB

Name

Not activated

During pressure holds

Cut valve 1

Power supply is not supplied (open)

Cut valve 2

Power supply is not supplied (open)

Suction valve 1

Power supply is not supplied (close)

Revision: 2011 October

2012 JUKE

BRC-20

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

During pressure front RH brake caliper holds

• Since the ABS IN valve and the ABS OUT valve are closed, the front RH brake caliper, master cylinder, and

reservoir are blocked. This maintains fluid pressure applied on the front RH brake caliper.

During pressure front LH brake caliper holds

• Since the ABS IN valve and the ABS OUT valve are closed, the front LH brake caliper, master cylinder, and

reservoir are blocked. This maintains fluid pressure applied on the front LH brake caliper.

During pressure rear RH brake caliper holds

• Since the ABS IN valve and the ABS OUT valve are closed, the rear RH brake caliper, master cylinder, and

reservoir are blocked. This maintains fluid pressure applied on the rear RH brake caliper.

During pressure rear LH brake caliper holds

• Since the ABS IN valve and the ABS OUT valve are closed, the rear LH brake caliper, master cylinder, and

reservoir are blocked. This maintains fluid pressure applied on the rear LH brake caliper.

When ABS Function is in Operation (During Pressure Decreases)

Suction valve 2

Power supply is not supplied (close)

ABS IN valve

Power supply is not supplied (open)

Power supply is supplied (close)

ABS OUT valve

Power supply is not supplied (close)

Each brake caliper (fluid pressure)

—

Pressure holds

Name

Not activated

During pressure holds

JSFIA0651GB

Name

Not activated

During pressure decreases

Cut valve 1

Power supply is not supplied (open)

Cut valve 2

Power supply is not supplied (open)

Suction valve 1

Power supply is not supplied (close)

Suction valve 2

Power supply is not supplied (close)

ABS IN valve

Power supply is not supplied (open)

Power supply is supplied (close)

ABS OUT valve

Power supply is not supplied (close)

Power supply is supplied (open)

Each brake caliper (fluid pressure)

—

Pressure decreases

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-21

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

During pressure front RH brake caliper decreases

• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the front RH

brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.

During pressure front LH brake caliper decreases

• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the front LH

brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.

During pressure rear RH brake caliper decreases

• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear RH

brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.

During pressure rear LH brake caliper decreases

• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear LH

brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.

When ABS Function is in Operation (During Pressure Increases)

During pressure front RH brake caliper increases

JSFIA0649GB

Name

Not activated

During pressure increases

Cut valve 1

Power supply is not supplied (open)

Cut valve 2

Power supply is not supplied (open)

Suction valve 1

Power supply is not supplied (close)

Suction valve 2

Power supply is not supplied (close)

ABS IN valve

Power supply is not supplied (open)

ABS OUT valve

Power supply is not supplied (close)

Each brake caliper (fluid pressure)

—

Pressure increases

Revision: 2011 October

2012 JUKE

BRC-22

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

• Brake fluid is supplied to the front RH brake caliper from the master cylinder through the cut valve 2 and the

ABS IN valve. Since the suction valve 2 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the front RH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).

During pressure front LH brake caliper increases

• Brake fluid is supplied to the front LH brake caliper from the master cylinder through the cut valve 1 and the

ABS IN valve. Since the suction valve 1 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the front LH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).

During pressure rear RH brake caliper increases

• Brake fluid is supplied to the rear RH brake caliper from the master cylinder through the cut valve 1 and the

ABS IN valve. Since the suction valve 1 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the rear RH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).

During pressure rear LH brake caliper increases

• Brake fluid is supplied to the rear LH brake caliper from the master cylinder through the cut valve 2 and the

ABS IN valve. Since the suction valve 2 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the rear LH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).

When Brake Release

JSFIA0652GB

Name

Not activated

During brake release

Cut valve 1

Power supply is not supplied (open)

Cut valve 2

Power supply is not supplied (open)

Suction valve 1

Power supply is not supplied (close)

Suction valve 2

Power supply is not supplied (close)

ABS IN valve

Power supply is not supplied (open)

ABS OUT valve

Power supply is not supplied (close)

Each brake caliper (fluid pressure)

—

Pressure decreases

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-23

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

During front RH brake caliper release

• Brake fluid is supplied to the front RH brake caliper through the return check valve of the ABS IN valve and

the cut valve 2, and returns to the master cylinder.

During front LH brake caliper release

• Brake fluid is supplied to the front LH brake caliper through the return check valve of the ABS IN valve and

the cut valve 1, and returns to the master cylinder.

During rear RH brake caliper release

• Brake fluid is supplied to the rear RH brake caliper through the return check valve of the ABS IN valve and

the cut valve 1, and returns to the master cylinder.

During rear LH brake caliper release

• Brake fluid is supplied to the rear LH brake caliper through the return check valve of the ABS IN valve and

the cut valve 2, and returns to the master cylinder.

Component Parts and Function

CONDITION FOR TURN ON THE WARNING LAMP

Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.

CONDITION FOR TURN ON THE INDICATOR LAMP

Component

Function

Pump

Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.

Motor

Activates the pump according to signals from ABS actuator and electric unit (control unit).

Cut valve 1
Cut valve 2

Shuts off the ordinary brake line from master cylinder.

Suction valve 1
Suction valve 2

Supplies the brake fluid from master cylinder to the pump.

ABS IN valve

Switches the fluid pressure line to increase or hold according to signals from control unit.

ABS OUT valve

Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.

Inlet valve

Brake fluid sucked from the reservoir by the pump does not backflow.

Outlet valve

Brake fluid discharged from the pump does not backflow.

Return check valve

Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice
of each valve when brake is released.

Reservoir

Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper and wheel cylinder.

Condition (status)

ABS warning lamp

Brake warning lamp

VDC warning lamp

Ignition switch OFF

OFF

For approx. 1 second after the ignition switch is turned ON

Approx. 1 second after ignition switch is turned ON (when the sys-
tem is in normal operation)

OFF

After engine starts

OFF

When parking brake operates (parking brake switch ON)

OFF

When brake fluid is less than the specified level (brake fluid level
switch ON)

OFF

VDC function is malfunctioning

OFF

TCS function is malfunctioning

OFF

ABS function is malfunctioning

OFF

EBD function is malfunctioning

Brake limited slip differential (BLSD) function is malfunctioning

OFF

VDC function is operating

OFF

Blinking

TCS function is operating

OFF

Blinking

Revision: 2011 October

2012 JUKE

BRC-24

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

• Turns ON when VDC function and TCS function are switched to non-operational status (OFF) by VDC OFF

switch.

• Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.

Fail-safe

INFOID:0000000007576798

VDC FUNCTION, TCS FUNCTION AND BRAKE LIMITED SLIP DIFFERENTIAL (BLSD) FUNCTION

VDC warning lamp in combination meter turn ON when a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is suspended for VDC function, TCS function and brake limited slip dif-
ferential (BLSD) function. The vehicle status becomes the same as models without VDC function, TCS func-
tion and brake limited slip differential (BLSD) function. However, ABS function and EBD function are operated
normally.

ABS FUNCTION

ABS warning lamp and VDC warning lamp in combination meter turn ON when a malfunction occurs in system
[ABS actuator and electric unit (control unit)]. 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 differential (BLSD) function. However,
EBD function is operated normally.
NOTE:
ABS self-diagnosis sound may be heard the same as in the normal condition, because self-diagnosis is per-
formed when ignition switch turns ON and when vehicle initially starts.

EBD FUNCTION

ABS warning lamp, brake warning lamp and VDC warning lamp in combination meter turn ON when a mal-
function occurs in system [ABS actuator and electric unit (control unit)]. 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.

Condition (status)

VDC OFF indicator lamp

Ignition switch OFF

OFF

For approx. 1 second after the ignition switch is turned ON

Approx. 1 second after ignition switch is turned ON (when the sys-
tem is in normal operation)

OFF

When VDC OFF switch is ON (VDC function and TCS function are
OFF)

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-25

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

DTC

Malfunction detected condition

Fail-safe condition

C1101

When an open circuit is detected in rear RH wheel sensor circuit.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function (only when both 2

rear wheels are malfunctioning)

• Brake limited slip differential

(BLSD) function

C1102

When an open circuit is detected in rear LH wheel sensor circuit.

C1103

When an open circuit is detected in front RH wheel sensor circuit.

C1104

When an open circuit is detected in front LH wheel sensor circuit.

C1105

• When a short circuit is detected in rear RH wheel sensor circuit.
• When power supply voltage of rear RH wheel sensor is in following state.
- Rear RH wheel sensor power supply voltage: 7.5 V

≥

Rear RH wheel sensor pow-

er supply voltage

- Rear RH wheel sensor power supply voltage: 16 V

≤

Rear RH wheel sensor power

supply voltage

• When distance between rear RH wheel sensor and rear RH wheel sensor rotor is

large.

• When installation of rear RH wheel sensor or rear RH wheel sensor rotor is not

normal.

C1106

• When a short circuit is detected in rear LH wheel sensor circuit.
• When power supply voltage of rear LH wheel sensor is in following state.
- Rear LH wheel sensor power supply voltage: 7.5 V

≥

Rear LH wheel sensor power

supply voltage

- Rear LH wheel sensor power supply voltage: 16 V

≤

Rear LH wheel sensor power

supply voltage

• When distance between rear LH wheel sensor and rear LH wheel sensor rotor is

large.

• When installation of rear LH wheel sensor or rear LH wheel sensor rotor is not nor-

mal.

C1107

• When a short circuit is detected in front RH wheel sensor circuit.
• When power supply voltage of front RH wheel sensor is in following state.
- Front RH wheel sensor power supply voltage: 7.5 V

≥

Front RH wheel sensor

power supply voltage

- Front RH wheel sensor power supply voltage: 16 V

≤

Front RH wheel sensor pow-

er supply voltage

• When distance between front RH wheel sensor and front RH wheel sensor rotor

is large.

• When installation of front RH wheel sensor or front RH wheel sensor rotor is not

normal.

C1108

• When a short circuit is detected in front LH wheel sensor circuit.
• When power supply voltage of front LH wheel sensor is in following state.
- Front LH wheel sensor power supply voltage: 7.5 V

≥

Front LH wheel sensor pow-

er supply voltage

- Front LH wheel sensor power supply voltage: 16 V

≤

Front LH wheel sensor power

supply voltage

• When distance between front LH wheel sensor and front LH wheel sensor rotor is

large.

• When installation of front LH wheel sensor or front LH wheel sensor rotor is not

normal.

C1109

When ignition power supply voltage is in following state.
• Ignition power supply voltage: 10 V

≥

Ignition power supply voltage.

• Ignition power supply voltage: 16 V

≤

Ignition power supply voltage.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential

(BLSD) function

C1110

When there is an internal malfunction in the ABS actuator and electric unit (control
unit).

C1111

When a malfunction is detected in motor or motor relay.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• Brake limited slip differential

(BLSD) function

Revision: 2011 October

2012 JUKE

BRC-26

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

C1113

When a malfunction is detected in decel G signal, or signal line of yaw rate/side/de-
cel G sensor is open or shorted.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function (AWD)
• Brake limited slip differential

(BLSD) function

C1115

When difference in wheel speed between any wheel and others is detected the ve-
hicle is driven, because of installation of other tires than specified.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential

(BLSD) function

C1116

When stop lamp switch signal is not input when brake pedal operates.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

C1120

When a malfunction is detected in front LH ABS IN valve.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential

(BLSD) function

C1121

When a malfunction is detected in front LH ABS OUT valve.

C1122

When a malfunction is detected in front RH ABS IN valve.

C1123

When a malfunction is detected in front RH ABS OUT valve.

C1124

When a malfunction is detected in rear LH ABS IN valve.

C1125

When a malfunction is detected in rear LH ABS OUT valve.

C1126

When a malfunction is detected in rear RH ABS IN valve.

C1127

When a malfunction is detected in rear RH ABS OUT valve.

C1130

When a malfunction is detected in ECM system.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

C1140

When a malfunction is detected in actuator relay.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential

(BLSD) function

C1143

When a malfunction is detected in steering angle sensor.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function (AWD)
• Brake limited slip differential

(BLSD) function

C1144

When neutral position adjustment of steering angle sensor is not complete.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

DTC

Malfunction detected condition

Fail-safe condition

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-27

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

VDC FUNCTION

VDC FUNCTION : System Description

INFOID:0000000007576799

• Side slip or tail slip may occur while driving on a slippery road or intending an urgent evasive driving. VDC

function detects side slip status using each sensor when side slip or tail slip is about to occur and improves
vehicle stability by brake control and engine output control during driving.

• In addition to ABS function, EBD function and TCS function, target side slip amount is calculated according

to steering operation amount from steering angle sensor. By comparing this information with vehicle side slip
amount that is calculated from information from yaw rate/side/decel G sensor and wheel sensor, vehicle driv-

C1145

When a malfunction is detected in yaw rate signal, or signal line of yaw rate/side/
decel G sensor is open or shorted.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function (AWD)
• Brake limited slip differential

(BLSD) function

C1146

When a malfunction is detected in side G signal, or signal line of yaw rate/side/decel
G sensor is open or shorted.

C1155

When brake fluid level low signal is detected.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

C1164

When a malfunction is detected in cut valve 1.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• EBD function
• Brake limited slip differential

(BLSD) function

C1165

When a malfunction is detected in cut valve 2.

C1166

When a malfunction is detected in suction valve 1.

C1167

When a malfunction is detected in suction valve 2.

C1170

When the information in ABS actuator and electric unit (control unit) is not the same.

The following functions are sus-
pended.
• VDC function
• TCS function
• ABS function
• Brake limited slip differential

(BLSD) function

C1176

When brake pedal position switch signal is not input when brake pedal operates.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

U1000

When CAN communication signal is not continuously transmitted or received for 2
seconds or more.

The following functions are sus-
pended.
• VDC function
• TCS function
• Brake limited slip differential

(BLSD) function

U1010

When detecting error during the initial diagnosis of CAN controller of ABS actuator
and electric unit (control unit).

DTC

Malfunction detected condition

Fail-safe condition

Revision: 2011 October

2012 JUKE

BRC-28

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

ing conditions (conditions of understeer or oversteer) are judged and vehicle stability is improved by brake
force control on all 4 wheels and engine output control.

• VDC function can be switched to non-operational status (OFF) by operating VDC OFF switch. In this case,

VDC OFF indicator lamp turns ON.

• Control unit portion automatically improves driving stability by performing brake force control as well as

engine output control, by transmitting drive signal to actuator portion according to difference between target
side slip amount and vehicle side slip amount

• VDC warning lamp blinks while VDC function is in operation and indicates to the driver that the function is in

operation.

• CONSULT can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in VDC 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-24, "Fail-safe"

NOTE:
VDC has the characteristic as described here, This is not the device that helps reckless driving.

SYSTEM DIAGRAM

NOTE:
• TCM is CVT models only.
• 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.

JSFIA0653GB

JSFIA0654GB

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-29

< 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

OPERATION CHARACTERISTICS

VDC Function That Prevents Oversteer Tendency

• During a cornering, brake force (brake fluid pressure) is applied on front wheel and rear wheel on the outer

side of turn. Moment directing towards the outer side of turn is generated. Oversteer is prevented.

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.
• Acceleration 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

JPFIC0135GB

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-31

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

TCS FUNCTION : System Description

INFOID:0000000007576800

• Wheel spin status of drive wheel is detected by wheel sensor of 4

wheels. Engine output and transmission shift status is controlled
so that slip rate of drive wheels is in appropriate level. When wheel
spin occurs on drive wheel, ABS actuator and electric unit (control
unit) perform brake force control of LH and RH drive wheels (apply
brake force by increasing brake fluid pressure of drive wheel) and
decrease engine torque by engine torque control. Wheel spin
amount decreases. Engine torque is controlled to appropriate
level.

• TCS function can be switched to non-operational status (OFF) by

operating VDC OFF switch. In this case, VDC OFF indicator lamp
turns ON.

• VDC warning lamp blinks while TCS function is in operation and

indicates to the driver that the function is in operation.

• CONSULT can be used to diagnose the system diagnosis.
• Fail-safe function is adopted. When a malfunction occurs in TCS

function, the control is suspended for VDC function, TCS function
and brake limited slip differential (BLSD) function. The vehicle sta-
tus becomes the same as models without VDC function, TCS func-
tion and brake limited slip differential (BLSD) function. However,
ABS function and EBD function are operated normally. Refer to

BRC-24, "Fail-safe"

SYSTEM DIAGRAM

NOTE:
• TCM is CVT models only.
• 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.

JPFIC0139GB

JSFIA0654GB

Revision: 2011 October

2012 JUKE

BRC-32

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

*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:0000000007576801

• 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

Revision: 2011 October

2012 JUKE

SYSTEM

BRC-33

< SYSTEM DESCRIPTION >

[WITH VDC]

BRC

• 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-24, "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: 2011 October

2012 JUKE

BRC-34

< SYSTEM DESCRIPTION >

[WITH VDC]

SYSTEM

EBD FUNCTION

EBD FUNCTION : System Description

INFOID:0000000007576802

• 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-

24, "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: 2011 October

2012 JUKE

Nissan Juke (2012 year). Service Repair Manual - part 25