BCS-134
< SYMPTOM DIAGNOSIS >[WITHOUT INTELLIGENT KEY SYSTEM]
COMBINATION SWITCH SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
COMBINATION SWITCH SYSTEM SYMPTOMS
Symptom TableINFOID:0000000012432409
WITH VARIABLE INTERMITTENT FRONT WIPERS
1. Perform the data monitor of CONSULT
to check for any malfunctioning item.
2. Check the malfunction combinations.
Malfunction item: ×
3. Identify the malfunctioning part from the agreed combination and repair or replace the part.
WITHOUT VARIABLE INTERMITTENT FRONT WIPERS
1. Perform the data monitor of CONSULT to check for any malfunctioning item.
Malfunction combination Data monitor item
FR WIPER HI
FR WIPER LOW
FR WASHER SW FR WIPER INTINT VOLUME
RR WIPER ON
RR WIPER INT
RR WASHER SW TURN SIGNAL RTURN SIGNAL L TA I L L A M P S W HI BEAM SW
HEAD LAMP SW 1
HEAD LAMP SW 2 PA S S I N G S WFR FOG SW
A ×× ××
B ×× ××
C ×× ××
D ×××
E ×× ×
F ×× ×
G ××××
H ××
I ××××
J × ×××
K All Items
L If only one item is detected or the item is not applicable to the combinations A to K
Malfunction
combination Malfunctioning part
Repair or replace
A Combination switch INPUT 1 circuit
Inspect the combination switch input circuit applicable to the malfunctioning
part. Refer to BCS-130, "
Diagnosis Procedure".
B Combination switch INPUT 2 circuit
C Combination switch INPUT 3 circuit
D Combination switch INPUT 4 circuit E Combination switch INPUT 5 circuitF Combination switch OUTPUT 1 circuit
Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to BCS-132, "
Diagnosis Procedure".
G Combination switch OUTPUT 2 circuit
H Combination switch OUTPUT 3 circuit I Combination switch OUTPUT 4 circuit
J Combination switch OUTPUT 5 circuit
K BCM Replace BCM. Refer to BCS-137, "
Removal and Installation".
L Combination switch Replace the combination switch. Refer to
BCS-138, "
Removal and Installa-
tion".
Revision: August 2015 2016 Versa Note
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BCS
COMBINATION SWITCH SYSTEM SYMPTOMSBCS-135
< SYMPTOM DIAGNOSIS > [WITHOUT INTELLIGENT KEY SYSTEM]
C
D
E
F
G H
I
J
K L
B A
O P
N
2. Check the malfunction combinations.
Malfunction item:
×
3. Identify the malfunctioning part from the agreed combination and repair or replace the part.
Malfunction combination Data monitor item
FR WIPER HI
FR WIPER LOW
FR WASHER SW
FR WIPER INT
RR WIPER ON
RR WIPER INT
RR WASHER SW TURN SIGNAL R
TURN SIGNAL L TAIL LAMP SW HI BEAM SW
HEAD LAMP SW 1
HEAD LAMP SW 2 PASSING SW
A ×× ××
B ×× ××
C ×××
D ××
E ×
F ××
G ×××
H ××
I ×××
J ××××
K All Items
L If only one item is detected or the item is not applicable to the combinations A to K
Malfunction
combination Malfunctioning part
Repair or replace
A Combination switch INPUT 1 circuit
Inspect the combination switch input circuit applicable to the malfunctioning
part. Refer to BCS-130, "
Diagnosis Procedure".
B Combination switch INPUT 2 circuit
C Combination switch INPUT 3 circuit
D Combination switch INPUT 4 circuit E Combination switch INPUT 5 circuitF Combination switch OUTPUT 1 circuit
Inspect the combination switch output circuit applicable to the malfunction-
ing part. Refer to BCS-132, "
Diagnosis Procedure".
G Combination switch OUTPUT 2 circuit
H Combination switch OUTPUT 3 circuit I Combination switch OUTPUT 4 circuit
J Combination switch OUTPUT 5 circuit
K BCM Replace BCM. Refer to BCS-137, "
Removal and Installation".
L Combination switch Replace the combination switch. Refer to
BCS-138, "
Removal and Installa-
tion".
Revision: August 2015 2016 Versa Note
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BCS-136
< SYMPTOM DIAGNOSIS >[WITHOUT INTELLIGENT KEY SYSTEM]
NORMAL OPERATING CONDITION
NORMAL OPERATING CONDITION
DescriptionINFOID:0000000012432410
SHIPPING MODE
• Shipping mode inhibits battery power consumption duri
ng transportation or storage of the vehicle. Vehicle is
set to shipping mode before being shipped from the factory.
• When ignition switch is OFF, BCM operates shipping mode.
• BCM control function is limited in shipping mode. Re mote keyless entry function does not operate in ship-
ping mode.
• For shipping mode cancel operation, refer to BCS-125, "
Work Procedure".
NOTE:
Do not cancel shipping mode during storage of the v ehicle. Shipping mode should not be canceled until just
prior to customer delivery.
TRANSIT MODE
• BCM is in transit mode if turn signal indicators in combination meter illuminate for 1 minute when ignition
switch is turned from OFF to ON.
• In this case, cancel operation must be performed.
• For transit mode cancel operation, refer to BCS-126, "
Work Procedure".
NOTE:
Do not cancel transit mode during storage of the vehicle. Transit mode s hould not be canceled until just prior
to customer delivery.
Revision: August 2015 2016 Versa Note
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BRC-8
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
COMPONENT PARTS
Component Description
INFOID:0000000012430827
ABS Actuator and Electric Unit (Control Unit)INFOID:0000000012430828
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 is 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
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).
Motor Relay
Operates the motor ON/OFF according to signals fr om ABS actuator and electric unit (control unit).
Actuator Relay (Main Relay)
Operates each valve ON/OFF according to signals fr om ABS actuator and electric unit (control unit).
ABS IN Valve
A. View with steering wheel and spiral
cable removed B. Left side of instrument panel C. Left side of engine compartment
D. Left side of engine compartment E. Right side of engine compartment F. Left front wheel assembly
G. Near brake pedal area H. Left side of instrument panel I. Center of front seats (view with cen-
ter console removed)
J. Left rear wheel assembly
ALFIA0482ZZ
Component Reference/Function
1 Steering angle sensor BRC-9, "
Steering Angle Sensor"
2 VDC OFF switchBRC-10, "VDC OFF Switch"
3 IPDM E/RPCS-4, "Component Parts Location"
4 Brake fluid level switchBRC-10, "Brake Fluid Level Switch"
5 ABS actuator and electric unit (control unit)BRC-8, "ABS Actuator and Electric Unit (Control Unit)"
6 Front wheel sensorBRC-9, "Wheel Sensor and Sensor Rotor"
7 Stop lamp switchBRC-9, "Sto p La mp Sw itc h"
8 Combination meter (type A)MWI-9, "METER SYSTEM : Combination Meter"
9 Combination meter (type B)MWI-9, "METER SYSTEM : Combination Meter"
10 Parking brake switch BRC-10, "Parking Brake Switch"
11. Rear wheel sensor BRC-9, "Wheel Sensor and Sensor Rotor"
Revision: August 2015 2016 Versa Note
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COMPONENT PARTSBRC-9
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
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.
Cut Valve 1, Cut Valve 2
Shuts off the ordinary brake line from master cylinder, when VDC function and TCS function are activated.
Suction Valve 1, Suction Valve 2
Supplies the brake fluid from master cylinder to the pump, when VDC function and TCS function are activated.
Return Check Valve
Returns the brake fluid from brake caliper and wheel cyli nder 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 decreases when
decreasing pressure of brake caliper and wheel cylinder.
Yaw rate/side/decel G sensor
Calculates the following information that affects the v ehicle, and transmits a signal to ABS actuator and elec-
tric unit (control unit) via communication lines:
• Vehicle rotation angular velocity (yaw rate signal)
• Vehicle lateral acceleration (side G signal) and longitudinal acceleration (decel G signal)
Pressure Sensor
Detects the brake fluid pressure and transmits signal to ABS actuator and electric unit (control unit).
Wheel Sensor and Sensor RotorINFOID:0000000012430829
NOTE:
• Wheel sensor of front wheel is installed on steering knuckle.
• Sensor rotor of front wheel is integrated in wheel hub assembly.
• Wheel sensor of rear wheel is installed on back plate of rear brake.
• Sensor rotor of rear wheel is installed on rear brake drum.
• Never measure resistance and voltage value using a tester because sensor is active sensor.
• Downsize and weight reduction is aimed. IC for detection portion
and magnet for sensor rotor are adopted.
• Power supply is supplied to detection portion so that magnetic field
line is read. Magnetic field that is detected is converted to current
signal.
• When sensor rotor rotates, magnetic field changes. Magnetic field
change is converted to current signals (rectangular wave) and is
transmitted to ABS actuator and electric unit (control unit). Change
of magnetic field is pr oportional to wheel speed.
Stop Lamp SwitchINFOID:0000000012430830
Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and elec-
tric unit (control unit).
Steering Angle SensorINFOID:0000000012430831
Detects the following information and transmits steering angle signal to ABS actuator and electric unit (control
unit) via CAN communication:
• Steering wheel rotation amount
• Steering wheel rotation angular velocity
• Steering wheel rotation direction
JPFIC0131GB
Revision: August 2015 2016 Versa Note
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BRC-10
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
COMPONENT PARTS
VDC OFF Switch
INFOID:0000000012430832
• Non-operational status or standby status of VDC and TCS functions can be selected using VDC OFF switch.
VDC OFF indicator lamp indicates the operation stat us of function. (ON: Non-operational status, OFF:
Standby status)
• VDC OFF indicator lamp turns OFF (standby status) when the engine is started again after it is stopped once
while VDC OFF indicator lamp is ON (non-operational status).
Brake Fluid Level SwitchINFOID:0000000012430833
Detects the brake fluid level in reservoir tank and transmi ts converted electric signal from combination meter to
ABS actuator and electric unit (control unit) via CAN communication.
Parking Brake SwitchINFOID:0000000012430834
Detects the operation status of parking brake switch and transmits converted electric signal from combination
meter to ABS actuator and electric unit (control unit) via CAN communication.
Revision: August 2015 2016 Versa Note
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SYSTEMBRC-15
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
BRC
N
O P
Front RH brake caliper• Since the suction valve 1 and the ABS OUT valve are closed and the cut valve 1 and the ABS IN valve are open, the fluid pressure applied on the front RH brake ca liper is reduced by supplying the fluid pressure to
the master cylinder via the ABS IN valve and the cut valv e 1. The pressurization for the right caliper is con-
trolled separately from the left caliper.
Front LH brake caliper
• Since the suction valve 2 and the ABS OUT valve are closed and the cut valve 2 and the ABS IN valve are open, the fluid pressure applied on the front LH brake caliper is reduced by supplying the fluid pressure to
the master cylinder via the ABS IN valve and the cut valv e 2. The pressurization for the left caliper is con-
trolled separately from the right caliper.
Rear RH wheel cylinder• Since the suction valve 2 and the ABS OUT valve are closed and the cut valve 2 and the ABS IN valve are open, the fluid pressure applied on the rear RH wheel cylinder is reduced by supplying the fluid pressure to
the master cylinder via the ABS IN valve and the cut va lve 2. The pressurization for the right wheel cylinder
is controlled separately from the left wheel cylinder.
Rear LH wheel cylinder• Since the suction valve 1 and the ABS OUT valve are closed and the cut valve 1 and the ABS IN valve are open, the fluid pressure applied on the rear LH wheel cylinder is reduced by supplying the fluid pressure to
the master cylinder via the ABS IN valve and the cut valv e 1. The pressurization for the left wheel cylinder is
controlled separately from the right wheel cylinder.
Component Parts and Function
VALVE OPERATION (ABS AND EBD FUNCTIONS)
The control unit built into the ABS actuator and electric unit (control unit) controls fluid pressure of the brake
calipers by operating each valve.
Name Not activatedDuring pressure decreases
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 supp ly is not supplied (open)
ABS OUT valve Power supply is not supplie d (close) Power supply is not supplied (close)
Each brake caliper and each wheel cylinder
(fluid pressure) —
Pressure decreases
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).
Revision: August 2015 2016 Versa Note
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SYSTEMBRC-21
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D
E
G H
I
J
K L
M A
B
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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