2011 NISSAN LATIO brake

BR-38
< SERVICE INFORMATION >
REAR DRUM BRAKE
• Check wheel cylinder for brake fluid leakage.
• Check for wear, damage, and looseness. If any non-standard con-dition is found, replace it.
Other Inspections
Check the following:
• Inside of the drum for excessive wear, damage, and cracks.
• Lining for excessive wear, damage, and peeling.
• Shoe sliding surface for excessive wear and damage.
• Return spring for sagging.
• Check back plate for damage, cracks, and deformation. Replace back plate as necessary.
Replace applicable part as necessary.
INSTALLATION
1. Install operating lever (C) if removed, using the following steps.
a. Install operating lever (C) to brake shoe.
b. Install retainer ring (A) to operating lever (C), and crimp them
until their contact points (B) are met.
• Retainer ring (A)
• Contact point (B)
• Operating lever (C)
•Pin (D)
2. Apply PBC (Poly Butyl Cuprysil) grease or silicone based grease to brake shoes sliding surfaces (the shaded areas) and
other parts on the back plate as indicated by arrows.
3. Apply PBC (Poly Butyl Cuprysil) grease or silicone based grease to screw and confirm the difference between right and
left wheel for assembling when disassembled.
4. Assemble the shoe, adjuster, adjuster lever and springs to the shoe assembly.
WFIA0528E
SFIA3075E
WFIA0529E
Right rear
wheel Thread cutting
direction : Right-hand screw
Left rear
wheel Thread cutting
direction : Left-hand screw
SFIA3076E
Revision: May 2010
2011 Versa

REAR DRUM BRAKEBR-39
< SERVICE INFORMATION >
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5. Connect the parking brake rear cable to the operating lever.
6. Install the shoe assembly. After assembly, be sure that each part is installed properly. CAUTION:
Do not damage the wheel cylinder piston boot.
7. Install the brake drum.
8. Depress brake pedal for several times (approximately 2 or 3 times).
9. Adjust clearance of brake shoe. Refer to PB-5, "
On-Vehicle Service".
10. Install rear wheel and tire. Refer to WT-7, "
Adjustment".
Removal and Installati on of Wheel CylinderINFOID:0000000005928418
REMOVAL
1. Drain the brake fluid. Refer to BR-9, "Drain and Refill".
2. Remove the rear brake shoe assembly. Refer to BR-36, "
Removal and Installation of Drum Brake Assem-
bly".
3. Remove the bleed valve.
4. Disconnect the brake tube from the wheel cylinder.
5. Remove the wheel cylinder bolts and then remove the wheel cylinder from the back plate.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten bolts and bleed valve to the specified torque. Refer to BR-35, "
Component".
• Refill with new brake fluid and bleed the air. Refer to BR-9, "
Bleeding Brake System".
Disassembly and Assembly of Wheel CylinderINFOID:0000000005928419
DISASSEMBLY
1. Remove boots at the right and left of the wheel cylinder, and pull
the pistons and spring out of the cylinder.
2. Remove the piston cups from the pistons.
INSPECTION AFTER DISASSEMBLY
Check the pistons, spring and inner wall of the cylinder for wear, corrosion, and damage. Replace any parts as
necessary.
ASSEMBLY
CAUTION:
When inserting the piston, be caref ul not to scratch the cylinder.
1. Apply brake fluid to the piston sliding surface on the wheel cylinder.
2. Apply rubber grease to the piston cups and boots and assemble the wheel cylinder as shown.
SFIA3077E
SFIA3078E
Revision: May 2010 2011 Versa

BR-40
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000005928420
HR16DE
MR18DE
TypeWith ABS or VDC/TCS/ABSWithout ABS
Front brake Brake model AD22VK
Cylinder bore diameter 53.97 mm (2.125 in)
Pad
Length × width × thickness 115.0 mm ×
41.0 mm × 9.0 mm
(4.528 in × 1.614 in × 0.354 in)
Rotor outer diameter × thickness 260 mm × 22.0 mm (10.24 in × 0.866 in)
Rear brake Brake model LT20
Cylinder bore diameter 15.87 mm (0.625 in)17.46 mm (0.687 in)
Drum inner diameter 203 mm (7.992 in)
Master cylinder Cylinder bore diameter 22.22 mm (0.875 in)
Brake booster Booster model C255
Diaphragm diameter 255 mm (10.04 in)
Recommended brake fluid DOT 3
Front brake Brake modelCLZ25VF
Cylinder bore diameter 57.2 mm (2.252 in)
Pad
Length × width × thickness 125.6 mm
× 48.0 mm × 9.5 mm
(4.945 in × 1.890 in × 0.374 in)
Rotor outer diameter × thickness 280 mm × 24.0 mm (11.02 in × 0.945 in)
Rear brake Brake model LT23
Cylinder bore diameter 19.06 mm (0.750 in)
Drum inner diameter 228.6 mm (9.000 in)
Master cylinder Cylinder bore diameter 23.81 ± 0.015 mm (0.937 ± 0.001 in)
Brake booster Booster model C255
Diaphragm diameter 255 mm (10.04 in)
Recommended brake fluid DOT 3
Revision: May 2010 2011 Versa

SERVICE DATA AND SPECIFICATIONS (SDS)BR-41
< SERVICE INFORMATION >
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Brake PedalINFOID:0000000005928421
Unit: mm (in)
Check ValveINFOID:0000000005928422
Brake pedal free height (H) (from dash panel top surface) A/T, CVT model 172.4 - 182.4 (6.79 - 7.18)
M/T model 162.3 - 172.3 (6.39 - 6.78)
Brake pedal full stroke (S) 133 (5.24)
Clearance between the pedal stopper and threaded end of stop lamp switch (C
1) and ASCD cancel
switch (C
2), if equipped 0.74 - 1.96 (0.0291 - 0.0772)
AWFIA0557ZZ
When connected to booster side (1)
Within 1.3 kPa (10 mmHg, 0.39 inHg) of vacuum for 15 seconds
[at vacuum of – 66.7 kPa (– 500 mmHg, – 19.69 inHg]
When connected to engine side (2) No vacuum will be applied
SFIA0210E
Revision: May 2010 2011 Versa

BR-42
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
Brake Booster
INFOID:0000000005928423
Front Disc BrakeINFOID:0000000005928424
Unit: mm (in)
Unit: mm (in)
Rear Drum BrakeINFOID:0000000005928425
Unit: mm (in)
Unit: mm (in)
Input rod installation standard dimension (B) 159 ± 0.5 mm (6.26 ± 0.02 in)
Vacuum leakage
[at vacuum of – 66.7 kPa (– 500 mmHg, –19.69 inHg)] Within 3.3 kPa (25 mmHg, 0.98 inHg) of vacuum for 15 seconds
SGIA0060E
Brake model
AD22VK
Brake pad Standard thickness (new)
9.0 (0.354)
Repair limit thickness 2.0 (0.079)
Disc rotor Standard thickness (new)
22.0 (0.866)
Repair limit thickness 20.0 (0.787)
Runout limit 0.07 (0.0028)
Maximum uneven wear (measured at 8 positions) 0.02 mm (0.0008 in) or less
Brake model CLZ25VF
Brake pad Standard thickness (new)
9.5 (0.374)
Repair limit thickness 2.0 (0.079)
Disc rotor Standard thickness (new)
24.0 (0.945)
Repair limit thickness 22.0 (0.866)
Runout limit (measured at 10.0 mm (0.394 in) inside the disc edge 0.07 (0.0028)
Maximum uneven wear (measured at 8 positions) 0.02 mm (0.0008 in) or less
Brake model LT 2 0
Brake lining Standard thickness
(new) 4.0 (0.157)
Repair limit thickness 1.5 (0.059)
Drum Standard inner diameter (new)
203 (7.992)
Repair limit inner diameter 204.5 (8.051)
Brake model LT 2 3
Brake lining Standard thickness (new)
4.0 (0.157)
Repair limit thickness 1.5 (0.059)
Drum Standard inner diameter (new)
228.6 (9.000)
Repair limit inner diameter 230.0 (9.055)
Revision: May 2010 2011 Versa

BRC-1
BRAKES
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SECTION BRC
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CONTENTS
BRAKE CONTROL SYSTEM
ABS
SERVICE INFORMATION .. ..........................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution for Brake System ....................................3
Precaution for Brake Control .....................................4
Precaution for CAN System ................................ ......4
PREPARATION ...................................................5
Special Service Tool ........................................... ......5
Commercial Service Tool ..........................................5
SYSTEM DESCRIPTION .....................................6
System Component ............................................. ......6
ABS Function ............................................................6
EBD Function ............................................................6
Fail-Safe Function .....................................................6
Hydraulic Circuit Diagram .........................................7
CAN COMMUNICATION ................................ .....8
System Description ............................................. ......8
TROUBLE DIAGNOSIS ......................................9
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ........................................................
9
Component Parts and Harness Connector Loca-
tion ...................................................................... ....
12
Schematic ...............................................................13
Wiring Diagram - ABS - ...........................................14
Basic Inspection .................................................. ....17
Warning Lamp and Indicator Timing .......................18
Control Unit Input/Output Signal Standard ..............18
CONSULT-III Function (ABS) .................................19
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS ..................................................
25
Wheel Sensor System .............................................25
ABS Control Unit Inspection ....................................26
Solenoid Valve System Inspection ...................... ....26
Actuator Motor, Motor Relay, and Circuit Inspec-
tion ....................................................................... ....
27
ABS Control Unit Power and Ground Systems In-
spection ...................................................................
28
CAN Communication System Inspection .................29
TROUBLE DIAGNOSES FOR SYMPTOMS .....30
ABS Works Frequently ............................................30
Unexpected Pedal Action ........................................30
Long Stopping Distance ..........................................31
ABS Does Not Work ................................................31
Pedal Vibration or ABS Operation Noise .................31
WHEEL SENSORS ...........................................33
Removal and Installation ..................................... ....33
SENSOR ROTOR ..............................................35
Removal and Installation .........................................35
ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ..................................................................
36
Removal and Installation .........................................36
VDC/TCS/ABS
SERVICE INFORMATION .. .........................
38
PRECAUTIONS .................................................38
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
38
Precautions Necessary for Steering Wheel Rota-
tion after Battery Disconnect ...................................
38
Precaution for Brake System ...................................39
Precaution for Brake Control ...................................39
Precaution for CAN System .....................................40
PREPARATION .................................................41
Special Service Tool ................................................41
Commercial Service Tool ........................................41
SYSTEM DESCRIPTION ..................................42
Revision: May 2010 2011 Versa

BRC-2
System Component ................................................42
ABS Function ....................................... ...................42
EBD Function ...................................................... ...42
TCS Function ..........................................................43
VDC Function .........................................................43
Wheel Sensors .......................................................43
Fail-Safe Function ..................................................43
Hydraulic Circuit Diagram .......................................44
CAN COMMUNICATION ...................................45
System Description .................................................45
TROUBLE DIAGNOSIS .....................................46
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ...
46
Component Parts and Harness Connector Loca-
tion ..........................................................................
49
Schematic ...............................................................51
Wiring Diagram - VDC - ..........................................52
Basic Inspection .....................................................56
Warning Lamp and Indicator Timing .......................57
Control Unit Input/Output Signal Standard .............57
CONSULT-III Function (ABS) .................................60
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS ............................................... ...
67
Wheel Sensor System Inspection ...........................67
Engine System Inspection ................................... ...68
ABS/TCS/VDC Control Unit Inspection ..................68
Steering Angle Sensor System Inspection .......... ...69
Yaw Rate/Side/Decel G Sensor System Inspec-
tion ....................................................................... ...
70
Solenoid and VDC Change-Over Valve System
Inspection ...............................................................
72
Actuator Motor, Motor Relay, and Circuit Inspec-
tion ....................................................................... ...
73
Stop Lamp Switch System Inspection ....................74
ABS/TCS/VDC Control Unit Power and Ground
Systems Inspection .............................................. ...
75
Brake Fluid Level Switch System Inspection ..........76
Pressure Sensor System Inspection .......................77
Transmission Range Switch System Inspection .. ...78
CAN Communication System Inspection ................79
Component Inspection ............................................79
TROUBLE DIAGNOSES FOR SYMPTOMS .....81
ABS Works Frequently ............................................81
Unexpected Pedal Action ..................................... ...81
Long Stopping Distance ..........................................82
ABS Does Not Work ...............................................82
Pedal Vibration or ABS Op eration Noise ................82
ABS Warning Lamp Does Not Come On When Ig-
nition Switch Is Turned On ................................... ...
83
ABS Warning Lamp Stays On When Ignition
Switch Is Turned On ............................................ ...
83
Vehicle Jerks During TCS/VDC Activation ..............84
ON-VEHICLE SERVICE ....................................85
Adjustment of Steering Angle Sensor Neutral Po-
sition ..................................................................... ...
85
WHEEL SENSORS ............................................86
Removal and Installation .........................................86
SENSOR ROTOR ........................................... ...88
Removal and Installation .........................................88
ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ................................................................ ...
89
Removal and Installation .........................................89
STEERING ANGLE SENSOR ........................ ...91
Removal and Installation .........................................91
G SENSOR ........................................................92
Removal and Installation .........................................92
Revision: May 2010 2011 Versa

PRECAUTIONSBRC-3
< SERVICE INFORMATION > [ABS]
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005928426
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution for Brake SystemINFOID:0000000005928427
CAUTION:
• Refer to MA-14
for recommended brake fluid.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is
splashed on painted areas, wash it away with water immediately.
• To clean or wash all parts of master cylin der and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosen e. They will ruin rubber parts of the hydraulic sys-
tem.
• Use flare nut wrench when removing and installing brake tube.
• If a brake fluid leak is found, the part must be disassembled
without fail. Then it has to be replaced with a new one if a
defect exists.
• Turn the ignition switch OFF and remove the connector of the
ABS actuator and electric unit (con trol unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surf aces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage. Refer to BR-34, "
Brake Burnishing Proce-
dure".
WARNING:
• Clean brake pads and shoes with a waste cl oth, then wipe with a dust collector.
SBR686C
Revision: May 2010 2011 Versa