NISSAN LATIO 2009 Service Repair Manual

BR
N
O P
CONTENTS
BRAKE SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary fo r Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
2
Precaution for Brake System .............................. ......3
PREPARATION .............................................. .....4
Special Service Tool ........................................... ......4
Commercial Service Tool .................................... ......4
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....5
NVH Troubleshooting Chart ................................ ......5
BRAKE PEDAL .............................................. .....6
Inspection and Adjustment .................................. ......6
Removal and Installation ...........................................7
BRAKE FLUID .....................................................9
On Board Inspection ........................................... ......9
Drain and Refill .................................................... ......9
Bleeding Brake System ....................................... ......9
BRAKE TUBE AND HOSE ............................ ....11
Hydraulic Circuit .................................................. ....11
Front Brake Tube and Hose ................................ ....12
Rear Brake Tube and Hose ................................ ....12
Inspection After Installation ................................. ....13
DUAL PROPORTIONING VALVE ................. ....14
Removal and Installation .........................................14
Inspection ............................................................ ....14
BRAKE MASTER CY LINDER ........................ ....15
On-Board Inspection ........................................... ....15 Removal and Installation .....................................
....15
Disassembly and Assembly ................................. ....16
BRAKE BOOSTER ........................................... 20
On Board Inspection ............................................ ....20
Removal and Installation ..................................... ....21
VACUUM LINES ............................................... 23
Component .......................................................... ....23
Removal and Installation ..................................... ....23
Inspection ............................................................ ....23
FRONT DISC BRAKE ....................................... 25
On Board Inspection ............................................ ....25
Component .......................................................... ....25
Removal and Installation of Brake Pad ...................26
Removal and Installation of Brake Caliper Assem-
bly ........................................................................ ....
28
Disassembly and Assembly of Brake Caliper As-
sembly ................................................................. ....
29
Brake Burnishing Procedure ................................ ....32
REAR DRUM B RAKE ....................................... 33
Component .......................................................... ....33
Removal and Installation of Drum Brake Assembly ....34
Removal and Installation of Wheel Cylinder ........ ....37
Disassembly and Assembly of Wheel Cylinder ... ....37
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................. 38
General Specification .......................................... ....38
Brake Pedal ......................................................... ....39
Check Valve ........................................................ ....39
Brake Booster ...................................................... ....40
Front Disc Brake .................................................. ....40
Rear Drum Brake ................................................. ....40

BR
N
O P
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Brake System INFOID:0000000004305887
• Refill using recommended brake fluid. Refer to MA-14 .
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted surfac e of body. If brake fluid is splashed on painted surfaces
of body immediately wipe it off with cloth and then wash it away with water.
• To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use new brake fluid.
• Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
• Use a flare nut wrench when removing a brake tube and use a flare nut torque wrench when installing a brake tube.
• When installing brake tubes and hoses, be sure to check torque.
• Before working, turn igniti on switch OFF and disconnect connec-
tors of ABS actuator and electric unit (control unit) or the battery
cable from the negative terminal.
• Burnish the new braking surfaces after refinishing or replacing drums or rotors, after replacing p ads or linings, or if a soft pedal
occurs at very low mileage. Refer to BR-32, " Brake Burnishing
Procedure " .

ALFIA0092ZZ
Tool name Description
1. Flare nut crowfoot
2. Torque wrench Removing and installing brake piping
a: 10 mm (0.39 in) / 12 mm (0.47 in)
Pin punch Removing and installing reservoir tank pin
Tip diameter: 4 mm (0.16 in)
Power tool Removing nuts, bolts and screwsZZA0515D
PIIB1407E

BR
N
O P
NOISE, VIBRATION AND HARSHN
ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart INFOID:0000000004305889
Use the chart below to help you find t he cause of the symptom. If necessary, repair or replace these parts.
× : ApplicableReference pageBR-25
,
BR-34
BR-25
, BR-34BR-25
BR-29
, BR-34
BR-29
, BR-34
BR-29
, BR-34
BR-29
, BR-34
BR-29
, BR-34—
BR-29, BR-34BR-34
FAX-5, "
NVH Troubleshooting Chart
"
MT-49, "
NVH Troubleshooting Chart
"
FSU-6, "
NVH Troubleshooting Chart
"
WT-5, "
NVH Troubleshooting Chart
"
WT-5, "
NVH Troubleshooting Chart
"
FAX-5, "
NVH Troubleshooting Chart
"
PS-5, "
NVH Troubleshooting Chart
" Possible cause and
SUSPECTED PARTS
Pads/Lining damaged
Pads/Lining - uneven wear
Shims damaged
Rotor imbalance
Rotor damage
Rotor runout
Rotor deformation
Rotor deflection
Rotor rust
Rotor thickness variation
Drum out of round
WHEEL HUB
DIFFERENTIAL
SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
STEERING
Symptom Noise
× × × × × × × × × ×
Shake × × × × × × ×
Shimmy, Shudder × × × × × × × × × × × ×

Brake Pedal " .
M/T model : Refer to BR-39, " Brake Pedal " .
S Brake pedal full stroke (under a force of 490 N
(50 kg-f, 110 lb-f) with the engine running) A/T, CVT
models : Refer to
BR-39, " Brake Pedal " .
M/T model : Refer to BR-39, " Brake Pedal " .
C 1 Clearance between the threaded
end of stop lamp switch
and pedal stopper : Refer to
BR-39, " Brake Pedal " .
C 2 Clearance between the threaded
end of ASCD switch and
pedal stopper : Refer to
BR-39, " Brake Pedal " .

BR
N
O P
2. Loosen lock nut on input rod, then rotate input rod to set pedal to
the specified height, and tighten the lock nut.
CAUTION:
Make sure that the threaded end of input rod stays inside
clevis.
3. With the pedal pulled and held by hand, press stop lamp switch and ASCD switch until their threaded end contacts the brake
pedal stopper.
4. With the threaded end of stop lamp switch and ASCD switch contacting brake pedal stopper, rotate the switches clockwise by
45 ° to secure.
CAUTION:
Make sure that the clearance (C) is within specification.
5. Check that the stop lamps go out when the brake pedal is released.
CAUTION:
Make sure that stop lamps go off when brake pedal is
released.
6. Start the engine and check the brake pedal stroke.
Removal and Installation INFOID:0000000004305891
COMPONENTS
REMOVAL Lock nut : Refer to
BR-21, " Removal and Installation " .

Removal and Installation " .
2. Install the brake pedal assembly on the lower dash panel and tighten the brake pedal assembly nuts in the order as shown to
specification.
3. Installation of the remaining components are in the reverse order of the removal. • After installing brake pedal assembly to vehicle, adjust brake pedal. Refer to BR-6, " Inspection and
Adjustment " .
• After installing accelerator pedal, check accelerator pedal. Refer to ACC-3, " Removal and Installation " .SFIA2866E
SBR997
AWFIA0524GB

BR
N
O P
BRAKE FLUID
On Board Inspection INFOID:0000000004305892
CHECKING BRAKE FLUID LEVEL • Make sure the fluid level in the reservoir tank is within the standard (between MAX and MIN lines).
• Visually check around the reservoir tank for fluid leaks.
• If fluid level is excessively low, check brake system for fluid leaks.
• Release parking brake lever and see if brake warning lamp goes
off. If not, check brake system for fluid leaks.
Drain and Refill INFOID:0000000004305893
CAUTION:
• Refill using recommended brake fluid. Refer to MA-14, " Fluids and Lubricants " .
• 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, immediately wipe th em with cloth and wash it away with water.
• Before working, disconnect connect ors of ABS actuator and electric unit (control unit) or battery
negative terminal.
1. Connect a vinyl tube to bleed valve.
2. Depress the brake pedal, loosen the bleed valve, and gradually remove the brake fluid.
3. Clean inside of reservoir tank, and refill with new brake fluid.
4. Loosen bleed valve, depress brake pedal slowly to full stroke and then release it. Repeat the procedure every 2 or 3 seconds
until the new brake fluid comes out, then close the bleed valve
while depressing the brake pedal . Repeat the same procedure
for each wheel.
5. Bleed the air from the brake hydraulic system. Refer to BR-9," Bleeding Brake System " .
Bleeding Brake System INFOID:0000000004305894
CAUTION:
• While bleeding, pay attention to master cylinder fluid level.
• Before working, disconnect connectors of ABS actuator and electri c unit (control unit) or the battery
cable from the negative terminal.
1. Connect a vinyl tube to the rear right bleed valve.
2. Fully depress brake pedal 4 to 5 times.

Component " (front disc brake),
BR-33, " Compo-
nent " (rear drum brake).
6. Following the steps 1 to 5 above, with master cylinder reservoir tank filled at least half way, bleed air from
the rear right, front left, rear left, and front right brake, in that order.