TROUBLE DIAGNOSISBRC-19
< SERVICE INFORMATION > [ABS]
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Note 1: Confirm tire pressure is normal.
Note 2: ON/OFF timing of ABS warning lamp
ON: For approximately 2 seconds after ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after ignition switch is turned ON (when system is in normal operation).
CONSULT-III Function (ABS)INFOID:0000000005928445
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
Monitor item Display content Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSOR Wheel speedVehicle stopped
0 [km/h (MPH)]
BRC-25, "
Wheel Sensor
System"Vehicle running (Note 1) Almost in accor-
dance with speed-
ometer display
(within
±10%)
BATTERY VOLT Battery voltage sup-
plied to ABS actuator
and electric unit (con-
trol unit)Ignition switch ON
10 to 16VBRC-28, "
ABS Control
Unit Power and Ground
Systems Inspection"
STOP LAMP SW
Stop lamp switch oper-
ationBrake pedal depressed ON
—
Brake pedal not depressed OFF
ABS WARN LAMP ABS warning lamp ON
condition (Note 2)ABS warning lamp ON ON
BRC-17, "
Basic Inspec-
tion"ABS warning lamp OFF OFF
MOTOR RELAY Operation status of mo-
tor and motor relayIgnition switch ON or running
(ABS not activated)
OFF
BRC-27, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Ignition switch ON or engine
running (ABS activated) ON
ACTUATOR RLY Actuator relay opera-
tion statusVehicle stopped (Ignition
switch ON)
OFF
BRC-27, "
Actuator Motor,
Motor Relay, and Circuit
Inspection"Vehicle stopped (Engine run-
ning) ON
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR RH IN SOL
RR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL Solenoid valve opera-
tionActuator (solenoid) is active
(“ACTIVE TEST” with CON-
SULT-III) or actuator relay is in-
active (in fail-safe mode).
ON
BRC-26, "
Solenoid Valve
System Inspection"When actuator (solenoid) is not
active and actuator relay is ac-
tive (ignition switch ON). OFF
ABS SIGNAL
EBD SIGNAL Signal statusABS active
EBD active
ON
ABS system
EBD system
ABS not active
EBD not active OFF
ABS FAIL SIG
EBD FAIL SIG Fail signal statusABS fail
EBD fail
ON
ABS system
EBD system
ABS normal
EBD normal OFF
Diagnostic mode
Description
SELF DIAGNOSTIC RESULT Displays ABS actuator and electric unit (control unit) self-diagnosis results. DATA MONITOR Displays ABS actuator and electric unit (control unit) input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSISBRC-21
< SERVICE INFORMATION > [ABS]
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Self-diagnostic item Malfunction detecting condition Check system
RR RH SENSOR-1
[C1101] Circuit of rear RH wheel sensor is open.
BRC-25, "
Wheel Sensor
System" (Note 1)
RR LH SENSOR-1
[C1102]
Circuit of rear LH wheel sensor is open.
FR RH SENSOR-1
[C1103] Circuit of front RH wheel sensor is open.
FR LH SENSOR-1
[C1104] Circuit of front LH wheel sensor is open.
RR RH SENSOR-2
[C1105] When the circuit in the rear RH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
RR LH SENSOR-2
[C1106] When the circuit in the rear LH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
FR RH SENSOR-2
[C1107] When the circuit in the front RH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
FR LH SENSOR-2
[C1108] When the circuit in the front LH wheel sensor is short-circuited or
when the sensor power voltage is outside the standard. When the
distance between the wheel sensor and sensor rotor is too large
and the sensor pulse cannot be recognized by the control unit.
ABS SENSOR
[ABNORMAL SIGNAL]
[ C 111 5 ] Wheel sensor input is abnormal.
BATTERY VOLTAGE
[ABNORMAL]
[C1109] ABS actuator and electric unit (con
trol unit) power voltage is too
low. BRC-28, "
ABS Control
Unit Power and Ground
Systems Inspection"
CONTROLLER FAILURE
[ C 111 0 ]
Internal malfunction of ABS actuator and electric unit (control unit) BRC-26, "ABS Control
Unit Inspection"
PUMP MOTOR
[ C 1111 ]During actuator motor operation with ON, when actuator motor
turns OFF or when control line fo
r actuator motor relay is open. BRC-27, "Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"During actuator motor operation with OFF, when actuator motor
turns ON or when control line for relay is shorted to ground.
FR LH IN ABS SOL
[C1120] Circuit of front LH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
BRC-26, "
Solenoid Valve
System Inspection"
FR LH OUT ABS SOL
[C1121]Circuit of front LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH IN ABS SOL
[C1122] Circuit of front RH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
FR RH OUT ABS SOL
[C1123] Circuit of front RH OUT ABS solenoid
is open or shorted, or con-
trol line is open or shorted to power supply or ground.
RR LH IN ABS SOL
[C1124] Circuit of rear LH IN ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
RR LH OUT ABS SOL
[C1125] Circuit of rear LH OUT ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH IN ABS SOL
[C1126] Circuit of rear RH IN ABS solenoid is open or shorted, or control
line is open or shorted to power supply or ground.
RR RH OUT ABS SOL
[C1127] Circuit of rear RH OUT ABS solenoid
is open or shorted, or control
line is open or shorted to power supply or ground.
Revision: May 2010 2011 Versa
BRC-22
< SERVICE INFORMATION >[ABS]
TROUBLE DIAGNOSIS
Note 1: If wheel sensor 2 for each wheel is indicated, check ABS actuator and electric unit (control unit) power supply voltage
in addition
to wheel sensor circuit check.
Note 2: If multiple malfunctions are detected including CAN communication line [U1000], perform diagnosis for CAN communication line
first.
DATA MONITOR
Operation Procedure
1. After turning OFF the ignition switch, connect CONSULT-III to the data link connector.
2. Touch “ABS”, “DATA MONITOR” in order on the CONSULT-III screen. If “ABS” is not indicated, go to GI-36, "
CONSULT-III Data Link Connector (DLC) Circuit".
3. Return to the SELECT MONITOR ITEM screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU”. Refer to the following information.
4. When “START” is touched, the data monitor screen is displayed.
Display Item List
MAIN RELAY
[ C 111 4 ] ABS actuator relay or circuit malfunction. BRC-27, "Actuator Mo-
tor, Motor Relay, and Cir-
cuit Inspection"
CAN COMM CIRCUIT
[U1000]• CAN communication line is open or shorted.
• ABS actuator and electric unit (c
ontrol unit) internal malfunction
• Battery voltage for ECM is suddenly interrupted for approxi-
mately 0.5 second or more. BRC-29, "CAN Commu-
nication System Inspec-
tion" (Note 2)
Self-diagnostic item
Malfunction detecting condition Check system
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
FR RH SENSOR
(km/h, MPH) ××× Wheel speed calculated by front RH
wheel sensor signal is displayed.
FR LH SENSOR
(km/h, MPH) ×××
Wheel speed calculated by front LH
wheel sensor signal is displayed.
RR RH SENSOR
(km/h, MPH) ××× Wheel speed calculated by rear RH
wheel sensor signal is displayed.
RR LH SENSOR
(km/h, MPH) ××× Wheel speed calculated by rear LH
wheel sensor signal is displayed.
BATTERY VOLT
(V) ××× Voltage supplied to ABS actuator
and electric unit (control unit) is dis-
played.
STOP LAMP SW
(ON/OFF) ××× Stop lamp switch (ON/OFF) status is
displayed.
ABS WARN LAMP
(ON/OFF) –
×× ABS warning lamp (ON/OFF) status
is displayed.
FR LH IN SOL
(ON/OFF) –
×× Front LH IN ABS so
lenoid (ON/OFF)
status is displayed.
FR LH OUT SOL
(ON/OFF) –
×× Front LH OUT ABS solenoid (ON/
OFF) status is displayed.
FR RH IN SOL
(ON/OFF) –
×× Front RH IN ABS solenoid (ON/
OFF) status is displayed.
FR RH OUT SOL
(ON/OFF) –
×× Front RH OUT ABS solenoid (ON/
OFF) status is displayed.
RR LH IN SOL
(ON/OFF) –
×× Rear LH IN ABS solenoid (ON/OFF)
status is displayed.
RR LH OUT SOL
(ON/OFF) –
×× Rear LH OUT ABS solenoid (ON/
OFF) status is displayed.
Revision: May 2010
2011 Versa
TROUBLE DIAGNOSISBRC-23
< SERVICE INFORMATION > [ABS]
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× : Applicable
–: Not applicable
ACTIVE TEST
CAUTION:
• Do not perform active test while driving.
• Make sure to completely bl eed air from the brake system.
• The ABS and brake warning lamps tu rn on during the active test.
Operation Procedure
1. Connect the CONSULT-III to the data link connector and start the engine.
2. Touch “ABS”.
If “ABS” is not indicated, go to GI-36, "
CONSULT-III Data Link Connector (DLC) Circuit".
3. Touch “ACTIVE TEST”.
4. The SELECT TEST ITEM screen is displayed.
5. Touch necessary test item.
6. With the “MAIN SIGNALS” display selected, touch “START”.
7. The Active Test screen will be displayed, so conduct the following test.
Solenoid Valve Operation Chart
NOTE:
• If active test is performed with brake pedal depressed, pedal stroke may change. This is normal.
• “TEST IS STOPPED” is displayed approx imately 10 seconds after operation starts.
• After “TEST IS STOPPED” is displayed, to perform test again, repeat Step 6.
ABS Motor
Touch “ON” and “OFF” on the screen. Check that ABS motor relay operates as shown in table below.
RR RH IN SOL
(ON/OFF)–
×× Rear RH IN ABS solenoid (ON/OFF)
status is displayed.
RR RH OUT SOL
(ON/OFF) –
×× Rear RH OUT ABS solenoid (ON/
OFF) status is displayed.
MOTOR RELAY
(ON/OFF) –
×× ABS motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF) –
×× ABS actuator relay signal (ON/OFF)
status is displayed.
ABS FAIL SIG
(ON/OFF) ––
×ABS fail signal (ON/OFF) status is
displayed.
EBD FAIL SIG
(ON/OFF) ––
×EBD fail signal (ON/OFF) status is
displayed.
EBD SIGNAL
(ON/OFF) ––
×EBD operation (ON/OFF) status is
displayed.
ABS SIGNAL
(ON/OFF) ––
×ABS operation (ON/OFF) status is
displayed.
Item
(Unit) Data monitor item selection
Remarks
ECU INPUT
SIGNALS MAIN
SIGNALS SELECTION
FROM MENU
TEST ITEM CONDITIONJUDGEMENT
FR RH SOL
FR LH SOL
RR RH SOL
RR LH SOL Ignition switch is turned ON.Brake fluid pressure control operation
IN SOL OUT SOL
UP (Increase): OFF OFF
KEEP (Hold): ON OFF
DOWN (Decrease): ON ON
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
BRC-25
< SERVICE INFORMATION > [ABS]
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TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS
Wheel Sensor SystemINFOID:0000000005928446
INSPECTION PROCEDURE
1.CONNECTOR INSPECTION
Disconnect the ABS actuator and electric unit (control unit) connector E33 and wheel sensor of malfunctioning
code.
Check the terminals for deformation, disconnection, looseness or damage.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace as necessary.
2.CHECK WHEEL SENSOR OUTPUT SIGNAL
1. Connect ABS active wheel sensor tester (J- 45741) to wheel sensor using appropriate adapter.
2. Turn on the ABS active wheel sensor tester power switch.
NOTE:
The green POWER indicator should illuminate. If the POWER indicator does not illuminate, replace the
battery in the ABS active wheel sensor tester before proceeding.
3. Spin the wheel of the vehicle by hand and observe the red SENSOR indicator on the ABS active wheel
sensor tester. The red SENSOR indicator should flash on and off to indicate an output signal.
NOTE:
If the red SENSOR indicator illuminates but does not flash, reverse the polarity of the tester leads and
retest.
Does the ABS active wheel s ensor tester detect a signal?
YES >> GO TO 3.
NO >> Replace the wheel sensor. Refer to BRC-33, "
Removal and Installation".
3.CHECK TIRES
Check for inflation pressure, wear and size of each tire. Refer to WT-28
.
Are tire pressure and size correct and is tire wear within specifications?
YES >> GO TO 4.
NO >> Adjust tire pressure or replace tire(s).
4.CHECK WHEEL BEARINGS
Check wheel bearing axial end play. Refer to FA X - 6 , "
On-Vehicle Inspection and Service" or RAX-6, "On-Vehi-
cle Inspection and Service".
OK or NG
OK >> GO TO 5.
NG >> Repair or replace as necessary. Refer to FA X - 6 , "
Removal and Installation" or RAX-6, "Removal
and Installation".
5.CHECK WIRING HARNESS FOR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit (control unit) connec- tor and wheel sensor connector of malfunction code No.
3. Check continuity between wheel sensor harness connector ter- minals and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair the circuit.
6.CHECK WIRING HARNESS FOR OPEN CIRCUIT Continuity should not exist.
WFIA0498E
Revision: May 2010
2011 Versa
SYSTEM DESCRIPTIONBRC-43
< SERVICE INFORMATION > [VDC/TCS/ABS]
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TCS FunctionINFOID:0000000005928470
• Spinning of the drive wheels is detected by the ABS/TCS/VDC control unit using inputs from the wheel speed sensors. If wheel spin occurs, the drive wheel right and left brake fluid pressure control and engine
fuel cut are conducted while the throttle value is restricted to reduce the engine torque and decrease the
amount of wheel spin. In addition, the throttle openi ng is controlled to achieve the optimum engine torque.
• Depending on road condition, the vehicle may have a sluggi sh feel. This is normal, because optimum trac-
tion has the highest priority during TCS operation.
• TCS may be activated during sudden vehicle acceleration, wide open throttle acceleration, sudden transmis- sion shifts or when the vehicle is driven on a road with a varying surface friction coefficient.
• The SLIP indicator lamp flashes to inform the driver of TCS operation.
VDC FunctionINFOID:0000000005928471
• In addition to the ABS/TCS function, the driver steering amount and brake operation amount are detected
from the steering angle sensor, and the vehicle's driving status (amount of under steering/over steering) is
determined using inputs from the yaw rate/side/decel G sensor, wheel speed sensors, etc. and this informa-
tion is used to improve vehicle stability by controlling the braking and engine torque application to the
wheels.
• The SLIP indicator lamp flashes to inform the driver of VDC operation.
• During VDC operation, the vehicle body and brake pedal may vibrate lightly and a mechanical noise may be
heard. This is normal.
• The ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp may turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while the
engine is running or steep slope. In this case, restart the engine on a normal road and if the ABS warning
lamp, VDC OFF indicator lamp and SLIP indicator lamp turn off, there is no problem.
Wheel SensorsINFOID:0000000005928472
The front sensor units consist of a gear-shaped sensor rotor and a
sensor element. The element contains a magnet around which a coil
is wound. The front wheel sensors are installed on the front of the
wheel knuckles. As the wheel rotates, the sensor generates a
square-wave signal. The frequency increases as the wheel speed
increases.
The rear sensor units consist of wheel hubs with a series of internal
magnets and a sensor element. The rear wheel sensors are installed
on the inner side of the wheel knuckles. As the wheel rotates, the
sensor generates a square-wave signal. The frequency increases as
the wheel speed increases.
Fail-Safe FunctionINFOID:0000000005928473
ABS/EBD SYSTEM
In case of an electrical malfunction with the ABS, the ABS warning lamp, VDC OFF indicator lamp and SLIP
indicator lamp will turn on. In case of an electrical malfunction with the EBD system, the BRAKE warning lamp,
ABS warning lamp, VDC OFF indicator lamp and SLIP indicator lamp will turn on.
LBR333
WFIA0033E
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSISBRC-57
< SERVICE INFORMATION > [VDC/TCS/ABS]
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• If there is damage to the connection flare nut or ABS actuator and electric unit (control unit) screw, replace the damaged part and recheck for leaks.
• When there is fluid leaking or seeping from a fluid connection, use a clean cloth to wipe off the fluid and
recheck for leaks. If fluid is still seeping out, replace the damaged part. If the fluid is leaking at the ABS
actuator and electric unit (control unit), replace the ABS actuator and electric unit (control unit) assem-
bly.
CAUTION:
The ABS actuator and electric unit (control unit) cannot be disassembl\
ed and must be replaced
as an assembly.
3. Check the brake pads for excessive wear.
POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure the battery positive cable, negative cabl e and ground connection are not loose. In addition, make
sure the battery is sufficiently charged.
ABS WARNING LAMP, SLIP INDICATOR LAMP AND VDC OFF INDICATOR LAMP INSPECTION
1. Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp (when VDC OFF switch
is off), turn on for approximately 2 seconds when the igni tion switch is turned ON. If they do not, check the
VDC OFF indicator lamp and then VDC OFF switch. Refer to BRC-79, "
Component Inspection". Check
CAN communications. If there are no errors with VDC OFF switch and CAN communication system,
check combination meter. Refer to DI-32, "
Component Inspection".
2. Make sure the lamps turn off approximately 2 seconds after the ignition switch is turned ON. If the lamp does not turn off, conduct self-diagnosis.
3. With the engine running, make sure VDC OFF indicator lamp turns on and off when VDC OFF switch is turned on and off. If the indicator lamp status does not correspond to switch operation, check the VDC
OFF switch system. Refer to BRC-79, "
Component Inspection".
4. Make sure ABS warning lamp, SLIP indicator lamp and VDC OFF indicator lamp turn off approximately 2 seconds after the engine is started. If ABS warning la mp, SLIP indicator lamp or VDC OFF indicator lamp
have not turned off 10 seconds after the engine has been started, conduct self-diagnosis of the ABS actu-
ator and electric unit (control unit).
5. After conducting the self-diagnosis, be sure to erase the error memory. Refer to BRC-60, "
CONSULT-III
Function (ABS)".
Warning Lamp and Indicator TimingINFOID:0000000005928481
×: ON –: OFF
Control Unit Input/Out put Signal StandardINFOID:0000000005928482
REFERENCE VALUE FROM CONSULT-III
CAUTION:
The display shows the control unit calculation data, so a normal value might be displayed even in the
event the output circuit (harness) is open or short circuited.
Condition ABS
warning lamp VDC OFF
indicator lamp SLIP
indicator lamp Remarks
When the ignition switch is OFF ––– –
After the ignition switch is turned
ON
For approx. 2 seconds ×××
–
Ignition switch ON
Approx. 2 seconds later ––– –
When the VDC OFF switch turns
ON (VDC function OFF). –
×––
ABS/TCS/VDC malfunction ×××
–
×× –When the ABS/TCS/VDC control
unit is malfunctioning (power sup-
ply or ground malfunction).
When the VDC is malfunctioning. –×× –
Revision: May 2010 2011 Versa
TROUBLE DIAGNOSISBRC-59
< SERVICE INFORMATION > [VDC/TCS/ABS]
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ACCEL POS SIG Open/close condition
of throttle valve (linked
with accelerator pedal)Accelerator pedal not de-
pressed (ignition switch is ON)
0%
BRC-79, "
CAN Commu-
nication System Inspec-
tion"Depress accelerator pedal (ig-
nition switch is ON) 0 to 100%
SIDE G-SENSOR Transverse G detected
by side G-sensorVehicle stopped
Approx. 0 m/s
2
BRC-70, "Yaw Rate/Side/
Decel G Sensor System
Inspection"
Vehicle turning rightnegative value (m/
s2)
Vehicle turning left positive value (m/
s
2)
STR ANGLE SIG Steering angle detect-
ed by steering angle
sensorStraight-ahead
Approx. 0°BRC-69, "
Steering Angle
Sensor System Inspec-
tion"Steering wheel turned –720 to 720 °
PRESS SENSOR Brake fluid pressure
detected by pressure
sensorWith ignition switch ON and
brake pedal released
Approx. 0 bar
BRC-77, "
Pressure Sen-
sor System Inspection"With ignition switch ON and
brake pedal depressed –40 to 300 bar
EBD SIGNAL EBD operation EBD is active
On
—
EBD is inactive Off
ABS SIGNAL ABS operationABS is active
On
—
ABS is inactive Off
TCS SIGNAL TCS operationTCS is active
On
—
TCS is inactive Off
VDC SIGNAL VDC operationVDC is active
On
—
VDC is inactive Off
EBD FAIL SIG EBD fail-safe signal In EBD fail safe mode On
—
EBD is normal Off
ABS FAIL SIG ABS fail-safe signal In ABS fail safe mode
On
—
ABS is normal Off
TCS FAIL SIG TCS fail-safe signal In TCS fail safe mode
On
—
TCS is normal Off
VDC FAIL SIG VDC fail-safe signal In VDC fail safe mode On
—
VDC is normal Off
CRANKING SIG Crank operation Crank is active
On
—
Crank is inactive Off
FLUID LEV SW Status of brake fluid
level switchWhen brake fluid level switch
ON
On
BRC-76, "
Brake Fluid
Level Switch System In-
spection"When brake fluid level switch
OFF Off
PARK BRAKE SW Status of parking brake
switchParking brake switch is active On
BRC-79, "
Component In-
spection"Parking brake switch is inactive Off
Monitor item Display content
Data monitor
Note: Error inspection
checklist
Condition Reference value in
normal operation
Revision: May 2010 2011 Versa