2008 NISSAN LATIO ABS

REAR SUSPENSION ASSEMBLY
RSU-7
< SERVICE INFORMATION >
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ComponentINFOID:0000000001703738
WAIA0110E
1. Washer (upper) 2. Bushing (upper) 3. Bushing (lower)
4. Washer (lower) 5. Distance tube 6. Bound bumper cover
7. Bound bumper 8. Shock absorber 9. Rear spring rubber seat (upper)
10. Coil spring 11. Rear spring rubber seat (lower) 12. Brake tube protector
13. Rear suspension beam 14. Rear suspension beam bracket

RSU-8
< SERVICE INFORMATION >
SHOCK ABSORBER
SHOCK ABSORBER
Removal and InstallationINFOID:0000000001703739
REMOVAL
1. Remove rear tires from vehicle using power tool.
2. Remove wheel sensor from wheel hub and bearing assembly and rear suspension beam. Refer to BRC-
32 .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove shock absorber mask from trunk side finisher using a flat-bladed screwdriver. Refer to EI-51
.
CAUTION:
Wrap the tip of a screwdriver with cloth to avoid damaging components.
4. Set jack under rear suspension beam.
5. Remove upper nut of the shock absorber, and then remove
washer (upper), bushing (upper) from shock absorber.
6.
Remove shock absorber lower side bolt.
7. Gradually lower the jack, and remove the bushing (lower),
washer (lower), distance tube, bound bumper cover, bound
bumper and shock absorber from vehicle.
INSPECTION AFTER REMOVAL
Shock Absorber
Check the following:
• Shock absorber for deformation, cracks or damage, and replace if necessary.
• Piston rod for damage, uneven wear or distortion, and replace if necessary .
Bound Bumper and Bushing
Check bound bumper and bushing for cracks, deformation or other damage, and replace applicable parts if
necessary .
INSTALLATION
• Installation is in the reverse order of removal. For tightening torque, refer to RSU-7, "Component" .
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SEIA0146J

SHOCK ABSORBER
RSU-9
< SERVICE INFORMATION >
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• When installing body side bushing (upper), install the projection to
the body side hole securely.
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RSU-10
< SERVICE INFORMATION >
COIL SPRING
COIL SPRING
Removal and InstallationINFOID:0000000001703740
REMOVAL
1. Remove rear tires from vehicle using power tool.
2. Remove wheel sensor from wheel hub and bearing assembly. Refer to BRC-32
.
CAUTION:
Do not pull on wheel sensor harness.
3. Separate brake tube from wheel cylinder. Refer to BR-10
.
4. Set jack under rear suspension beam.
5. Remove shock absorber lower side bolt. Refer to RSU-8
.
6. Gradually lower the jack, and then remove coil spring and rear
spring rubber seat (upper and lower).
INSPECTION AFTER REMOVAL
Check coil spring and spring rubber seat for deformation, cracks, and damage, and replace it if a malfunction
is detected.
INSTALLATION
• Installation is in the reverse order of removal. For tightening torque, refer to RSU-7, "Component" .
• When installing spring, be sure to securely install the spring end
position aligned to flush of rear spring rubber seat (lower) as
shown.
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SEIA0149J

SRS-36
< ON-VEHICLE REPAIR >
SPIRAL CABLE
SPIRAL CABLE
Removal and InstallationINFOID:0000000001703927
REMOVAL
WARNING:
When servicing the SRS, do not work from directly in front of air bag module.
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• Do not tap or bump the steering wheel.
• Do not disassemble the spiral cable.
• Do not allow oil, grease or water to come in contact with the spiral cable.
• Replace the spiral cable if it has been dropped or sustained an impact.
• With the steering linkage disconnected, the spiral cable may snap by turning the steering wheel
beyond the limited number of turns. The spiral cable can be turned counterclockwise about 2.5 turns
from the neutral position.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Set the front wheels to the straight-ahead/neutral position.
3. Remove the steering wheel. Refer to PS-6
.
4. Remove the column cover upper and lower.
5. Disconnect wiper and washer switch connector (1). Then while
pressing tabs (2), pull wiper and washer switch away from spiral
cable to remove.
LHIA0113E
1. Nut, refer to PS-62. Steering wheel 3. Lighting and turn signal switch
4. Spiral cable 5. Driver air bag module connectors 6. Wiper and washer switch
7. Column cover lower 8. Steering lock escutcheon 9. Steering column assembly
10. Column cover upper Pawl
WHIA0315E

SPIRAL CABLE
SRS-37
< ON-VEHICLE REPAIR >
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6. Disconnect lighting and turn signal switch connector (1). Then
while pressing tabs (2), pull lighting and turn signal switch
toward driver door to remove.
7. Remove the screws, then release the tab at the top and pull the
spiral cable away from the steering column assembly.
8. Disconnect spiral cable connectors.
INSTALLATION
Installation is in the reverse order of removal.
• Align spiral cable correctly when installing steering wheel, refer to
PS-6
. Make sure spiral cable alignment and centering marks (B)
are matched and in the neutral position. The neutral position is
detected by turning left 2.6 revolutions from the right end position,
ending with the locating pin (A) at the top. Place steering wheel in
straight ahead position, then install it with the locating pin hole (C)
directly over spiral cable locating pin.
• After the work is completed, perform self-diagnosis to make sure
no malfunction is detected. Refer to SRS-18, "
SRS Operation
Check".
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EPS SYSTEM
STC-5
< SERVICE INFORMATION >[EPS]
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SchematicINFOID:0000000001703873
COMPONENTS FUNCTION DESCRIPTION
CAN CommunicationINFOID:0000000001703874
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
For details, refer to LAN-23, "
CAN System Specification Chart".
WGIA0187E
Component parts Function
EPS control unit
(Electric power steering control unit)• Outputs optimum assist torque signal to EPS motor.
• Reduces output signals to EPS motor and protects EPS motor and EPS control unit when us-
ing power steering continuously and excessively.
• As a fail-safe function, turned off output signal to EPS motor and then enters a manual steer-
ing state, if malfunction is detected in EPS system.
EPS motor Products assist torque by control signal from EPS control unit.
Torque sensor Detects steering wheel turning force and outputs sensor signal to EPS control unit.
Reduction gear Increases motor-produced assist torque by worm gear and transmits it to column shaft.
EPS warning lamp Illuminates if malfunction is detected in electrical system of EPS system.
ECMTransmits the following signals via CAN communication to EPS control unit.
• Engine status signal
ABS actuator and electric unit (con-
trol unit) (With ABS)Transmits the following signals via CAN communication to EPS control unit.
• Vehicle speed signal
Combination meterTransmits the following signals via CAN communication to EPS control unit.
• Vehicle speed signal
TCM (Without ABS)Transmits the following signals via CAN communication to EPS control unit.
• Vehicle speed signal

STC-18
< SERVICE INFORMATION >[EPS]
TROUBLE DIAGNOSIS FOR SYSTEM
1.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “EPS” with CONSULT-III.
3. Touch “ERASE”.
4. Turn ignition switch “OFF”, and wait at least 10 seconds.
5. Start engine.
6. Perform the self-diagnosis again.
Is the
“CONTROL UNIT [C1608]” displayed?
YES >> Replace EPS control unit. Refer to PS-9, "Removal and Installation".
NO >>INSPECTION END
DTC C1609 CAN VHCL SPEEDINFOID:0000000001703888
CONSULT-III REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
* : It is not a malfunction, though it might not be corresponding just after ignition switch is turned ON.
DIAGNOSTIC PROCEDURE
1.CHECK DTC WITH COMBINATION METER
Perform self-diagnosis with combination meter. Refer to DI-13, "
CONSULT-III Function (METER/M&A)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO-1 >> With ABS: GO TO 2.
NO-2 >> Without ABS: GO TO 3.
2.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-18, "
CONSULT-III
Function (ABS)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
3.CHECK DTC WITH TRANSMISSON CONTROL MODULE (TCM)
Perform self-diagnosis with TCM. Refer to AT-73, "
CONSULT-III Function (A/T)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 4.
4.CHECK EPS CONTROL UNIT
Check EPS control unit input/output signal. Refer to STC-9, "
EPS Control Unit Input/Output Signal Reference
Va l u e" .
OK or NG
OK >> GO TO 5.
NG >> Check EPS control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
5.CHECK DTC
Perform the self-diagnosis, after driving the vehicle for a while.
OK or NG
Monitor item (Unit) Content Condition Display value
VEHICLE SPEED (km/h) or (mph) Vehicle speedVehicle stopped 0 km/h (0 mph)
While drivingApproximately equal to the indication on speed-
ometer (Inside of ±10%)