2008 NISSAN LATIO steering wheel

PS-4
< SERVICE INFORMATION >
PREPARATION
PREPARATION
Special Service ToolINFOID:0000000001703856
The actual shapes of Kent-Moore tools may differ from those of special tools illustrated here.
Commercial Service ToolINFOID:0000000001703857
Tool number
(Kent-Moore No.)
Tool nameDescription
ST3127S000
(J-25742-1)
Preload gauge
(J-25765-A)
1. GG91030000
Torque wrench
2. HT62940000
(—)
Socket adapter (1/2")
3. HT62900000
(—)
Socket adapter (3/8")Inspecting rotating torque for steering column
assembly and pinion assembly
KV40107300
(—)
Boot Band crimping toolInstalling boot bands
KV48103400
(—)
Preload adapterInspecting of rotating torque for pinion assem-
bly
S-NT541
ZZA1229D
ZZA0824D
Tool number
Tool nameDescription
Spring gauge Inspecting steering wheel turning force and
power steering gear linkage
Power toolRemoving nuts and bolts
LST025
PBIC0190E

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
PS-5
< SERVICE INFORMATION >
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000001703858
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-13PS-13PS-6PS-6PS-6PS-9
PS-12
, PS-13PS-9PS-9PS-13
FAX-4, "
NVH Troubleshooting Chart
"
FSU-5, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
WT-4, "
NVH Troubleshooting Chart
"
FAX-4, "
NVH Troubleshooting Chart
"
BR-4, "
NVH Troubleshooting Chart
"
Possible cause and SUSPECTED
PA R T S
Outer/Inner socket ball joint swinging torque
Outer/Inner socket ball joint end play
Steering wheel play
Steering gear pinion rotating torque
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting loosenesss
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
WHEEL HUB
SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
SymptomNoise××× × ××××× ×
Shake××× ××××× ×
Vibration××××× ××× ×
Shimmy××× × ×××× ×
Shudder× × ×××× ×

PS-6
< SERVICE INFORMATION >
STEERING WHEEL
STEERING WHEEL
On-Vehicle Inspection and ServiceINFOID:0000000001703859
CHECKING CONDITION OF INSTALLATION
• Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.
• Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
• Check steering gear assembly mounting bolts and nuts for looseness. Refer to PS-12, "
Removal and Instal-
lation" .
CHECKING STEERING WHEEL PLAY
• Turn steering wheel so that front wheels come to the straight-ahead position. Start engine and lightly turn
steering wheel to the left and right until front wheels start to move. Measure steering wheel movement on the
outer circumference.
• When the measurement value is outside the standard value, check backlash for each joint of steering col-
umn assembly and installation condition of steering gear assembly.
CHECKING NEUTRAL POSITION STEERING WHEEL
• Make sure that steering gear assembly, steering column assembly and steering wheel are installed in the
correct position.
• Perform neutral position inspection after wheel alignment. Refer to RSU-2, "
Precaution for Supplemental
Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"" .
• Set vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.
• Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if steer-
ing wheel is not in the neutral position.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Start engine.
3. Check steering wheel turning force when steering wheel has
been turned 360° from neutral position using suitable tool as
shown.
4. If steering wheel turning force is out of the specification, refer to
STC-6, "
How to Perform Trouble Diagnosis" .
CHECKING FRONT WHEEL TURNING ANGLE
Steering wheel axial end play : 0 mm (0 in)
Steering wheel play : 0 - 35 mm (0 - 1.38 in)
Steering wheel
turning force: Less than 36 N (3.7 kg-f, 8.2 lb-f)
WGIA0180E

STEERING WHEEL
PS-7
< SERVICE INFORMATION >
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• Check front wheel turning angle after toe-in inspection. Place front
wheels on turning radius gauges and rear wheels on stands.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
• With the engine at idle, turn steering wheel from full left stop to full
right stop and measure the turning angles.
• Measure rack stroke if angles are outside the specified value.
• Disassemble steering gear assembly to check the cause that rack
stroke is outside of the standard.
• Steering angles are not adjustable. Check steering gear assembly,
steering column assembly and front suspension components for
wear or damage if any of the turning angles are different from the
specified value. Replace any of them, if any non-standard condi-
tion exists.
Removal and InstallationINFOID:0000000001703860
REMOVAL
NOTE:
When reconnecting spiral cable, secure cable with a tape so that case and rotating part keep aligned. This will
omit neutral position alignment procedure during spiral cable installation.
1. Set front wheels to straight-ahead position.
2. Remove driver air bag module. Refer to SRS-33
.
3. Remove steering wheel lock nut after steering is locked.
4. Remove steering wheel.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not run spiral cable idle needlessly. And do not turn it more than necessary (or it leads to discon-
nection of the cable).
NOTE:
FAA0016D
Inner wheel (Angle: A) Minimum 35° 00′ (35.0°)
Nominal 38° 00′ (38.0°)
Maximum 39° 00′ (39.0°)
Outer wheel (Angle: B) 33° 00′ (33.0°)
SGIA0055E
Rack stroke “L” : 65.0 mm (2.559 in)
WGIA0181E

PS-8
< SERVICE INFORMATION >
STEERING WHEEL
• The neutral position is set as follows.
Turn the spiral cable clockwise to the end position. Then turn it
counterclockwise (about 2 and half turns) and stop turning at the
point on which the stopper insertion holes are in the same position
(B). The service part is installed in the neutral position by the stop-
per and can be set without adjusting after the stopper is removed.
• Adjust the spiral cable locating pin (B) to the steering wheel locat-
ing pin hole (C).
WGIA0183E

STEERING COLUMN
PS-9
< SERVICE INFORMATION >
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STEERING COLUMN
Removal and InstallationINFOID:0000000001703861
COMPONENT
CAUTION:
• Do not allow axial impact to steering column assembly during removal and installation.
• Steering column must be kept at maximun tilt up position during removal and installation. Do not
operate tilt mechanism while steering column is out of the vehicle.
• Put matching mark on intermediate shaft and steering column assembly before removing intermedi-
ate shaft.
• When steering wheel is turned repeatedly with the vehicle stopped, care must be taken because
motor and EPS control unit may get too hot.
• Steering column assembly is heavy. Care must be taken when removing steering column assembly
from vehicle.
• Do not put steering column assembly near the things that generate excessive magnetic force.
• Steering column assembly (with motor, reduction gear, sensor) cannot be disassembled.
REMOVAL
1. Set front wheels to straight ahead-position.
2. Remove driver air bag module. Refer to SRS-33
.
3. Remove steering wheel. Refer to PS-7, "
Removal and Installation".
4. Remove steering column cover (upper and lower). Refer to IP-10, "
Component Parts".
5. Remove combination switch and spiral cable. Refer to SRS-36
.
6. Remove instrument lower finisher. Refer to IP-10, "
Component Parts".
7. Disconnect each switch connector installed to steering column assembly, and then disconnect harness
from steering column assembly.
1. Steering wheel 2. Steering column assembly (with mo-
tor, reduction gear, sensor)3. Bracket
4. EPS control unit 5. Intermediate shaft
AWGIA0017GB

PS-10
< SERVICE INFORMATION >
STEERING COLUMN
8. Remove bolt of intermediate shaft (upper side), and then remove intermediate shaft from steering column
assembly.
9. Remove steering column assembly mounting nuts, and then remove steering column assembly from vehi-
cle.
10. Remove bolt of intermediate shaft (lower side), and then remove intermediate shaft from vehicle.
11. Remove screws of bracket and EPS control unit, and then remove bracket and EPS control unit from
steering column assembly.
INSPECTION AFTER REMOVAL
• Check each part of steering column assembly, EPS control unit and intermediate shaft for damage and .
replace as necessary.
• Measure the length “L” as shown, if vehicle has been involved in a
minor collision. Replace steering column assembly (with motor,
reduction gear, sensor) if outside the standard.
• Check tilt mechanism for damage or other malfunctions. Replace
steering column assembly (with motor, reduction gear, sensor) as
necessary.
• Measure steering column assembly rotating torque using Tool. Replace steering column assembly (with
motor, reduction gear, sensor) if outside the standard.
INSTALLATION
Installation is in the reverse order of removal.
• Installation is in the reverse order of removal. For tightening torque, refer to "COMPONENT".
• When tightening bolt (intermediate shaft lower side), tighten it by hand first, and make sure there is no feel-
ing of sticking or galling before final tightening.
CAUTION:
Insert bolt in the proper direction. (Do not insert it from the other side.)
• When connecting intermediate shaft upper side (1) and column
shaft, make sure the bolt is securely seated in groove (A) of col-
umn shaft (A) before final tightening.
INSPECTION AFTER INSTALLATION
• Rotate steering wheel to check for decentered condition, binding, noise or excessive steering effort.
• After installing steering column assembly, perform self-diagnosis with CONSULT-II to ensure correct opera-
tion. Refer to STC-11, "
CONSULT-III Function (EPS)". Steering column
length “L”Minimum 462.1 mm (18.19 in)
Nominal 464.1 mm (18.27 in)
Maximum 466.1 mm (18.35 in)
Tool number : ST3127S000 (J-25742-1)
Rotating torque : 0 - 2.1 N·m (0 - 0.21 kg-m, 0 - 18 in-lb)
SGIA1293E
SGIA1295E

PS-12
< SERVICE INFORMATION >
POWER STEERING GEAR
POWER STEERING GEAR
Removal and InstallationINFOID:0000000001703862
COMPONENT
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and steer-
ing gear assembly. Be sure to secure steering wheel using string to avoid turning.
REMOVAL
1. Set vehicle to the straight-ahead position.
2. Remove bolt of intermediate shaft (lower side), and then remove intermediate shaft from steering gear
pinion shaft.
3. Raise vehicle.
4. Remove tires from vehicle with a power tool.
5. Loosen steering outer socket (1) mounting nut.
6. Remove steering outer socket (1) from steering knuckle (2) so
as not to damage ball joint boot (3) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover (suitable tool) from
suddenly coming off.
7. Remove front suspension member. Refer to FSU-10, "
Removal and Installation".
8. Remove mounting bolts and nuts of steering gear assembly.
INSTALLATION
Installation is in the reverse order of removal.
• For tightening torque, refer to "COMPONENT" .
• Clean mounting surface on the body side of fire wall seal when installing steering gear assembly.
1. Steering gear assembly 2. Washer 3. Fire wall seal
4. Heat insulator 5. Front suspension member
Refer to GI-7
for the symbols.
SGIA1296E
SGIA1298E