2011 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2011 Service Repair Manual BRC-40
< SERVICE INFORMATION >[VDC/TCS/ABS]
PRECAUTIONS
• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw
rate/side/decel G sensor to indi

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NISSAN LATIO 2011 Service Repair Manual PREPARATIONBRC-41
< SERVICE INFORMATION > [VDC/TCS/ABS]
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PREPARATION
Special Service ToolINFOID:0000000005928465
The actual shapes of Kent-Moore tools may differ from

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NISSAN LATIO 2011 Service Repair Manual BRC-42
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
System ComponentINFOID:0000000005928467
ABS FunctionINFOID:0000000005928468
• The Anti-Lock Brake System detects whe

BRC-42
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
SYSTEM DESCRIPTION
System ComponentINFOID:0000000005928467
ABS FunctionINFOID:0000000005928468
• The Anti-Lock Brake System detects wheel revolution while braking and improves handling stability during
sudden braking by electrically preventing wheel lockup. Maneuverability is also improved for avoiding obsta-
cles.
• If the electrical system malfunctions, the Fail-Safe function is activated, the ABS becomes inoperative and
the ABS warning lamp turns on.
• The electrical system can be diagnosed using CONSULT-III.
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is
normal.
• Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
EBD FunctionINFOID:0000000005928469
• Electronic Brake Distribution is a function that detec ts subtle slippages between the front and rear wheels
during braking, and it improves handling stability by elec tronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.
• If the electrical system malfunctions, the Fail-Saf e function is activated, the EBD and ABS become inopera-
tive, and the ABS warning lamp and BRAKE warning lamp are turned on.
• The electrical system can be diagnosed using CONSULT-III.
• During EBD operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is normal.
• Just after starting the vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without EBD when vehicle drives on rough, gravel, or snow-covered (fresh, deep snow) roads.
AWFIA0604GB
Revision: May 2010 2011 Versa

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NISSAN LATIO 2011 Service Repair Manual 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 con

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

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NISSAN LATIO 2011 Service Repair Manual BRC-44
< SERVICE INFORMATION >[VDC/TCS/ABS]
SYSTEM DESCRIPTION
The system will revert to one of the follo
wing conditions of the Fail-Safe function.
1. For ABS malfunction, only the EBD is operative a

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NISSAN LATIO 2011 Service Repair Manual CAN COMMUNICATIONBRC-45
< SERVICE INFORMATION > [VDC/TCS/ABS]
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CAN COMMUNICATION
System DescriptionINFOID:0000000005928475
Refer to LAN-7, "System Description".
Revis

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NISSAN LATIO 2011 Service Repair Manual BRC-46
< SERVICE INFORMATION >[VDC/TCS/ABS]
TROUBLE DIAGNOSIS
TROUBLE DIAGNOSIS
How to Perform Trouble Diagnosis
for Quick and Accurate RepairINFOID:0000000005928476
INTRODUCTION
The ABS/TCS/VDC syst

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NISSAN LATIO 2011 Service Repair Manual TROUBLE DIAGNOSISBRC-47
< SERVICE INFORMATION > [VDC/TCS/ABS]
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WORK FLOW
CLARIFY CONCERN
ALFIA0011GB
Revision: May 2010 2011 Versa

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