2016 NISSAN NOTE brake fluid

BRC-20
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
reservoir. The amount of brake fluid supplied to the r
ear LH wheel cylinder 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).
Brake Release
Front RH brake caliper
• Brake fluid is supplied to the front RH brake caliper through the return check valve of the ABS IN valve and
the cut valve 1, and returns to the master cylinder.
Front LH brake caliper
• Brake fluid is supplied to the front LH brake caliper through the return check valve of the ABS IN valve and the cut valve 2, and returns to the master cylinder.
Rear RH wheel cylinder
• Brake fluid is supplied to the rear RH wheel cylinder through the return check valve of the ABS IN valve and
the cut valve 2, and returns to the master cylinder.
Rear LH wheel cylinder
• Brake fluid is supplied to the rear LH wheel cylinder through the return check valve of the ABS IN valve and
the cut valve 1, and returns to the master cylinder.
Component Parts and Function
JSFIA0682GB
Name Not activatedDuring brake release
Cut valve 1 Power supply is not supplied (open) Power supply is not supplied (open)
Cut valve 2 Power supply is not supplied (open) Power supply is not supplied (open)
Suction valve 1 Power supply is not supplied (close) Power supply is not supplied (close)
Suction valve 2 Power supply is not supplied (close) Power supply is not supplied (close)
ABS IN valve Power supply is not supplied (open) Power supply is not supplied (open)
ABS OUT valve Power supply is not supplied (close) Power supply is not supplied (close)
Each brake caliper and each wheel cylinder
(fluid pressure) —
Pressure decreases
Revision: August 2015 2016 Versa Note

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SYSTEMBRC-21
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
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G H
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BRC
N
O PCONDITIONS FOR INDICATOR LAMP ILLUMINATION
• Turns ON when VDC and TCS functions 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.
CONDITIONS FOR WARNING LAMP ILLUMINATION
Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
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.
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.
Pressure sensor Detects the brake fluid pressure and tr ansmits signal to ABS ac tuator and electric unit (control unit).
Condition (status) VDC OFF indicator lamp SLIP indicator lamp
Ignition switch OFF OFFOFF
For approx. 1 second after the ignition switch
is turned ON ON
ON
Approx. 1 second after ignition switch is
turned ON (when the system is in normal op-
eration) OFF
OFF
When VDC OFF switch is ON (VDC function
and TCS function are OFF) ON
OFF
VDC function is malfunctioning OFFON
TCS function is malfunctioning OFFON
Condition (status)ABS warning lamp Brake warning lamp
Ignition switch OFF OFFOFF
For approx. 1 second after the ignition switch
is turned ON ON
ON
Approx. 1 second after ignition switch is
turned ON (when the system is in normal op-
eration) OFF
OFF
After engine starts OFFOFF
When parking brake operates (parking brake
switch ON) OFF
ON
When brake fluid is less than the specified
level (brake fluid level switch ON) OFF
ON
VDC function is malfunctioning OFFOFF
TCS function is malfunctioning OFFOFF
ABS function is malfunctioning ONOFF
EBD function is malfunctioning ONON
Brake limited slip differential (BLSD) function
is malfunctioning OFF
OFF
Revision: August 2015 2016 Versa Note

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SYSTEMBRC-23
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
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BRC
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• Brake force control function at braking hard detects driver ′s brake operations with the pressure sensor,
judges a brake booster ′s maximum brake power function by using information from the vacuum sensor, and
enhances more powerful braking force by controlling brakes of four wheels.
• VDC warning lamp blinks while VDC function is in operat ion and indicates to the driver that the function is in
operation.
• CONSULT can be used to diagnose the system.
• Fail-safe function is adopted. When a malfunction occurs in VDC function, the control is suspended for VDC
function and TCS function. However, ABS function and EBD function operate normally. Refer to BRC-39,
"Fail-safe".
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
OPERATION CHARACTERISTICS
VDC Function That Prevents Oversteer Tendency
• During cornering, brake force (brake fluid pressure) is applied on front wheel and rear wheel on the outer
side of turn. Momentum is generated directing the vehicle toward the outer side of the turn. Oversteer is pre-
vented.
• Changing driving lane on a slippery road, when there may be a tendency to oversteer, engine output is con-
trolled as well as brake force (brake fluid pr essure) of 4 wheels. Oversteer tendency decreases.
Component Signal description
ECM Transmits the following signals to ABS actuator an
d electric unit (control unit) via CAN commu-
nication:
• Acceleration pedal position signal
• Engine speed signal
• Target throttle position signal
TCM Transmits the current gear positi
on signal to ABS actuator and electric unit (control unit) via
CAN communication.
Steering angle sensor Transmits the steering an
gle sensor signal to ABS actuator an d electric unit (control unit) via
CAN communication.
Combination meter Transmits the following signals to ABS actuator an
d electric unit (control unit) via CAN commu-
nication:
• Brake fluid level switch signal
• parking brake switch signal
Receives the following signals from ABS actuator and electric unit (control unit) via CAN com-
munication:
• VDC OFF indicator lamp signal
• SLIP indicator lamp signal
ALFIA0339GB
ALFIA0340GB
Revision: August 2015 2016 Versa Note

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BRC-24
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
VDC Function That Prevents Understeer Tendency
• During cornering, brake force (brake fluid pressure) is applied on front wheel and rear wheel on the inner
side of turn. Momentum is generated directing the vehicle toward the inner side of the turn. Understeer is
prevented.
• Applying brakes during cornering on a slippery road, when there may be a tendency to understeer, engine output is controlled as well as brake force (bra ke fluid pressure) of 4 wheels. Understeer tendency
decreases.
VDC/TCS/ABS : TCS FunctionINFOID:0000000012430838
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
JPFIC0137GB
ALFIA0341GB
AWFIA0807GB
Revision: August 2015 2016 Versa Note

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SYSTEMBRC-25
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
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BRC
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• 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 ac tuator 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.
• SLIP indicator 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.
• Fail-safe function is adopted. When a malfunction occurs in TCS function, the control is suspended for VDC function and TCS func-
tion. However, ABS function and EBD function operate normally.
Refer to BRC-39, "
Fail-safe".
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JPFIC0139GB
Component Signal description
ECM Transmits the following signals to ABS actuator an
d electric unit (control unit) via CAN commu-
nication:
• Accelerator pedal position signal
• Engine speed signal
• Target throttle position signal
TCM Transmits the current gear positi
on signal to ABS actuator and electric unit (control unit) via
CAN communication.
Steering angle sensor Transmits the steering an
gle sensor signal to ABS actuator an d electric unit (control unit) via
CAN communication.
Combination meter Transmits the following signals to ABS actuator an
d electric unit (control unit) via CAN commu-
nication:
• Brake fluid level switch signal
• Parking brake switch signal
Receives the following signals from ABS actuator and electric unit (control unit) via CAN com-
munication:
• VDC OFF indicator lamp signal
• SLIP indicator lamp signal
Revision: August 2015 2016 Versa Note

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SYSTEMBRC-27
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D
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G H
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K L
M A
B
BRC
N
O P
Major signal transmission between each unit via communication lines is shown in the following table.
VDC/TCS/ABS : EBD FunctionINFOID:0000000012430840
SYSTEM DIAGRAM
• 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).
Component Signal description
Combination meter Receives the following signals from ABS actuator and electric unit (control unit) via CAN com-
munication:
• VDC warning lamp signal
• ABS warning lamp signal
AWFIA0808GB
JPFIC0142GB
Revision: August 2015
2016 Versa Note

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BRC-28
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
• 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.
• Fail-safe function is adopted. When a malfunction occurs in EBD function, the control is suspended for VDC function, TCS function,
ABS function and EBD function. Refer to BRC-28, "
VDC/TCS/ABS
: Fail-safe".
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
VDC/TCS/ABS : Fail-safeINFOID:0000000012430841
VDC AND TCS FUNCTIONS
VDC warning lamp in combination meter turns ON when a malfunction occurs in system [ABS actuator and
electric unit (control unit)]. The control is su spended for VDC and TCS functions. However, ABS and EBD
functions operate normally.
ABS FUNCTION
ABS warning lamp and SLIP indicator lamp in combi nation meter turn ON when a malfunction occurs in sys-
tem [ABS actuator and electric unit (control unit)]. The control is suspended for VDC, TCS and ABS functions.
However, EBD functions operate normally.
EBD FUNCTION
ABS warning lamp, brake warning lamp and SLIP indicator lamp in combination meter turn ON when a mal-
function occurs in system [ABS ac tuator and electric unit (control unit) ]. The control is suspended for VDC,
TCS, ABS and EBD functions.
JPFIC0143GB
Component Signal description
Combination meter Receives the following signals from ABS actuator
and electric unit (control unit) via CAN com-
munication:
• ABS warning lamp signal
• Brake warning lamp signal
• SLIP indicator lamp signal
Revision: August 2015 2016 Versa Note

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BRC-30
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
C1120 When a malfunction is detected in front LH ABS IN valve.
The following functions are sus-
pended:
•VDC
•TCS
•ABS
•EBD
C1121 When a malfunction is detected in front LH ABS OUT valve.
C1122 When a malfunction is dete
cted in front RH ABS IN valve.
C1123 When a malfunction is dete cted in front RH ABS OUT valve.
C1124 When a malfunction is dete cted in rear LH ABS IN valve.
C1125 When a malfunction is dete cted 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
•TCS
C1140 When a malfunction is detected in actuator relay. The following functions are sus-
pended:
•VDC
•TCS
•ABS
•EBD
C1142 When a malfunction is detected in VDC pressure sensor.
The following functions are sus-
pended:
•VDC
•TCS
C1143 When a malfunction is detected in steering angle sensor.
C1144 When neutral position adjustment of steering angle sensor is not complete.
C1145
When a malfunction is detected in yaw rate signal, or signal line of yaw rate/side/
decel G sensor is open or shorted.
C1146 When a malfunction is detected in side G signal, or signal line of yaw rate/side/decel
G sensor is open or shorted.
C1153 When ABS actuator and electric unit (control unit) is malfunctioning. (Pressure in-
crease is too much or too little.) The following functions are sus-
pended:
•VDC
•TCS
•ABS
C1155 When brake fluid level low signal is detected. The following functions are sus-
pended:
•VDC
•TCS
C1164 When a malfunction is detected in cut valve 1. The following functions are sus-
pended:
•VDC
•TCS
•ABS
•EBD
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
•TCS
•ABS
U1000 When CAN communication signal is not continuously transmitted or received for 2
seconds or more.
The following functions are sus-
pended:
•VDC
•TCS
U1002
When ABS actuator and electric unit (control unit) is not transmitting or receiving
CAN communication signal for 2 seconds or less.
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: August 2015 2016 Versa Note

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