2008 NISSAN LATIO ABS

ASSEMBLY
AT-337
< SERVICE INFORMATION >
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b. Without ABS
i. Install O-ring (3) to speedometer pinion (1).
ii. Install speedometer pinion (1) to converter housing (2).
: Bolt (1)
24. Tighten plug or speedometer pinion fitting bolt to the specified torque. Refer to AT-230, "
Component".
25. Install accumulator pistons.
a. Install O-rings (1) on servo release accumulator piston (2) and
N-D accumulator piston (3). Refer to AT-343, "
Accumulator".
b. Install return springs (1), servo release accumulator piston (2)
and N-D accumulator piston (3) into transaxle case (4). Refer to
AT-343, "
Accumulator".
26. Install lip seals (1) for band servo oil holes on transaxle case.
27. Install control valve assembly on transaxle case.
a. Install O-ring on terminal body.
CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
SCIA7462E
SCIA6033J
SCIA6042J
SCIA5895J

BODY REPAIR
BL-233
< SERVICE INFORMATION >
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To improve repairability and corrosion resistance, a new type of anti-
corrosive precoated steel sheet has been adopted replacing conven-
tional zinc-coated steel sheet.
Galvannealed steel is electroplated and heated to form Zinc-iron
alloy, which provides excellent and long term corrosion resistance
with cationic electrodeposition primer.
Nissan Genuine Service Parts are fabricated from galvannealed steel. Therefore, it is recommended that
GENUINE NISSAN PARTS or equivalent be used for panel replacement to maintain the anti-corrosive perfor-
mance built into the vehicle at the factory.
PHOSPHATE COATING TREATMENT AND CATIONIC ELECTRODEPOSITION PRIMER
A phosphate coating treatment and a cationic electrode position primer, which provide excellent corrosion pro-
tection, are employed on all body components.
CAUTION:
Confine paint removal during welding operations to an absolute
minimum.
Nissan Genuine Service Parts are also treated in the same manner. Therefore, it is recommended that GENU-
INE NISSAN PARTS or equivalent be used for panel replacement to maintain anti-corrosive performance built
into the vehicle at the factory.
ANTI-CORROSIVE WAX
To improve corrosion resistance, anti-corrosive wax is applied inside the body sill and inside other closed sec-
tions. Accordingly, when replacing these parts, be sure to apply anti-corrosive wax to the appropriate areas of
the new parts. Select an excellent anti-corrosive wax which will penetrate after application and has a long shelf
life.
PIIA0093E
PIIA0095E

BL-262
< SERVICE INFORMATION >
BODY REPAIR
1. When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics
(influence of heat and solvent) and remove them if necessary or take suitable measures to protect them.
2. Plastic parts should be repaired and painted using methods suiting the materials
, characteristics.
LOCATION OF PLASTIC PARTS
Abbre-
viationMaterial nameHeat resisting
temperature
°C (°F)Resistance to gasoline and
solventsOther cautions
PE Polyethylene 60 (140)Gasoline and most solvents are
harmless if applied for a very
short time (wipe up quickly).Flammable
PVC Polyvinyl Chloride 80 (176) Same as above.Poison gas is emitted
when burned.
EPM/
EPDMEthylene Propylene (Diene) rub-
ber80 (176) Same as above. Flammable
TPO/
TPRThermoplastic Olefine/
Thermoplastic Rubber80 (176) Same as above. Flammable
PP Polypropylene 90 (194) Same as above.Flammable, avoid bat-
tery acid.
UP Polyester thermoset 90 (194) Same as above. Flammable
PS Polystyrene 80 (176) Avoid solvents. Flammable
ABSAcrylonitrile Butadiene Styrene
resin80 (176) Avoid gasoline and solvents.
AES Acrylonitrile Ethylene Styrene 80 (176) Same as above.
PMMA Polymethyl Methacrylate 85 (185) Same as above.
AAS Acrylonitrile Acrylic Styrene 85 (185) Same as above.
AS Acrylonitrile Styrene 85 (185) Same as above.
EVA Polyvinyl Ethyl Acetate 90 (194) Same as above.
ASA Acrylonitrile Styrene Acrylate 100 (222) Same as above. Flammable
PPO/
PPEPolyphenylene Oxide/
Polyphenylene Ether110 (230) Same as above.
PC Polycarbonate 120 (248) Same as above.
PAR Polyacrylate 180 (356) Same as above.
L-
LDPELenear Low Density PE 45 (100)Gasoline and most solvents are
harmless.Flammable
PUR Polyurethane 90 (194) Same as above.
TPU Thermoplastic Urethane 110 (230) Same as above.
PPC Polypropylene Composite 115 (239) Same as above. Flammable
POM Polyacetal 120 (248) Same as above. Avoid battery acid.
PBT+P
CPolybutylene Terephtha-
late+Polycarbonate120 (248) Same as above. Flammable
PA Polyamide (Nylon) 140 (284) Same as above.Avoid immersing in wa-
ter.
PBT Polybutylene Terephthalate 140 (284) Same as above.
FRP Fiber Reinforced Plastics 170 (338) Same as above. Avoid battery acid.
PET Polyethylene Terephthalate 180 (356) Same as above.
PEI Polyetherimide 200 (392) Same as above.

BR-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703775
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 severity 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 whether 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 inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000001703776
• Refill using recommended brake fluid. Refer to MA-10.
• Never reuse drained brake fluid.
• Be careful not to splash brake fluid on painted surface 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 ignition 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 pads or linings, or if a soft pedal
occurs at very low mileage. Refer toBR-28, "
Brake Burnishing
Procedure" .
SBR686C

BR-8
< SERVICE INFORMATION >
BRAKE FLUID
BRAKE FLUID
On Board InspectionINFOID:0000000001703781
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 leakage.
• If fluid level is excessively low, check brake system for fluid leak-
age.
• Release parking brake lever and see if brake warning lamp goes
off. If not, check brake system for fluid leakage.
Drain and RefillINFOID:0000000001703782
CAUTION:
• Refill using recommended brake fluid. Refer to MA-10
.
• 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 them with cloth and wash it away with water.
• Before working, disconnect connectors of ABS actuator and electric unit (control unit) or battery
cable from the 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 air. Refer to BR-8, "
Bleeding Brake System" .
Bleeding Brake SystemINFOID:0000000001703783
CAUTION:
• While bleeding, pay attention to master cylinder fluid level.
• Before working, disconnect connectors of ABS actuator and electric 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.
SFIA3067E
WFIA0512E
WFIA0513E

BR-10
< SERVICE INFORMATION >
BRAKE TUBE AND HOSE
BRAKE TUBE AND HOSE
Hydraulic CircuitINFOID:0000000001703784
CAUTION:
• All tubes and hoses must be free from excessive bending, twisting and pulling.
• Make sure there is no interference with other parts when turning steering both clockwise and coun-
terclockwise.
• Brake tubes and hoses are an important safety part. Always disassemble the parts and retighten
their fittings, if a brake fluid leak is detected. Replace applicable part with a new one, if damaged part
is detected.
• Be careful not to splash brake fluid on painted areas; it way cause paint damage. If brake fluid is
splashed on painted surfaces of body, immediately wipe them with cloth and then wash it away with
water.
• Do not bend or twist brake hose sharply, or strongly pull it.
• When removing components, cover brake line connections so that dirt, dust, or other foreign mat-
ters do not get in.
• Refill using recommended brake fluid. Refer to MA-10
.
• Never reuse drained brake fluid.
Front Brake Tube and HoseINFOID:0000000001703785
REMOVAL
1. Front disc brake 2. Brake master cylinder 3. Brake booster
4. Rear drum brake 5. Connector 6.ABS actuator and electric unit (con-
trol unit)
7. Brake tube 8. Brake hose
:Union bolt
:Connector bolt
:Flare nut
18.2 N.m (1.9 kg-m, 13.0 ft-lb) 10.0 N.m (1.0 kg-m, 87.0 in-lb) 16.2 N.m (1.7 kg-m, 12.0 ft-lb)
SFIA3068E

BRC-1
BRAKES
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SECTION BRC
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CONTENTS
BRAKE CONTROL SYSTEM
ABS
SERVICE INFORMATION ............................
2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
Precaution for Brake System ....................................2
Precaution for Brake Control .....................................2
Precaution for CAN System ......................................3
PREPARATION ...................................................4
Special Service Tool .................................................4
Commercial Service Tool ..........................................4
SYSTEM DESCRIPTION .....................................5
System Component ...................................................5
ABS Function ............................................................5
EBD Function ............................................................5
Fail-Safe Function .....................................................5
Hydraulic Circuit Diagram .........................................6
CAN COMMUNICATION .....................................7
System Description ...................................................7
TROUBLE DIAGNOSIS ......................................8
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ........................................................
8
Component Parts and Harness Connector Loca-
tion ..........................................................................
11
Schematic ...............................................................12
Wiring Diagram - ABS - ...........................................13
Basic Inspection ......................................................16
Warning Lamp and Indicator Timing ........................17
Control Unit Input/Output Signal Standard ..............17
CONSULT-III Function (ABS) ..................................18
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS .................................................
24
Wheel Sensor System .............................................24
ABS Control Unit Inspection ....................................25
Solenoid Valve System Inspection ..........................25
Actuator Motor, Motor Relay, and Circuit Inspec-
tion ...........................................................................
26
ABS Control Unit Power and Ground Systems In-
spection ...................................................................
27
CAN Communication System Inspection .................28
TROUBLE DIAGNOSES FOR SYMPTOMS .....29
ABS Works Frequently ............................................29
Unexpected Pedal Action ........................................29
Long Stopping Distance ..........................................30
ABS Does Not Work ................................................30
Pedal Vibration or ABS Operation Noise .................30
WHEEL SENSORS ...........................................32
Removal and Installation .........................................32
SENSOR ROTOR ..............................................34
Removal and Installation .........................................34
ACTUATOR AND ELECTRIC UNIT (ASSEM-
BLY) ..................................................................
35
Removal and Installation .........................................35

BRC-2
< SERVICE INFORMATION >[ABS]
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001703818
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 severity 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 whether 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 inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution for Brake SystemINFOID:0000000001703819
CAUTION:
• Refer to MA-10
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 cylinder and disc brake caliper, use clean brake fluid.
• Never use mineral oils such as gasoline or kerosene. 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 (control unit) or the battery ter-
minal before performing the work.
• Always torque brake lines when installing.
• Burnish the brake contact surfaces after refinishing or replac-
ing rotors, after replacing pads, or if a soft pedal occurs at
very low mileage. Refer to BR-28, "
Brake Burnishing Proce-
dure".
WARNING:
• Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
Precaution for Brake ControlINFOID:0000000001703821
• 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 motor operating noises may be heard from
engine compartment. This is normal due to the self check operation.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
SBR686C