NISSAN NOTE 2016 Service Repair Manual

EPS CONTROL UNITSTC-37
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REMOVAL AND INSTALLATION
EPS CONTROL UNIT
Exploded ViewINFOID:0000000012431983
Removal and InstallationINFOID:0000000012431984
CAUTION:
• Do not shock EPS control unit, e.g. drop or hit.
• Do not allow EPS control unit to get wet with wate r, moisture or any other liquid. Also, protect the
EPS control unit from extreme temperatures.
• Do not disassemble or remodel EPS control unit, EPS motor, torque sensor, harness and connec-
tors.
REMOVAL
1. Perform a CPU memory erase on t he EPS with CONSULT before removal.
2. Disconnect the battery cable from the negative terminal. Refer to PG-70, "
Removal and Installation (Bat-
tery)"
3. Remove instrument lower panel (LH). Refer to IP-24, "Removal and Installation".
4. Disconnect harness connectors from EPS control unit. CAUTION:
Hold and pull the connector housing, do not pull on harness when disconnecting connectors.
Also, do not grip, collapse or ap ply excessive force to the connector.
5. Remove screws and EPS control unit from steering column.
6. Remove bolts and bracket plate from steering column (if necessary).
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Check that the harness connector, terminals and the EPS control unit are not visibly damaged before
installing the EPS control unit.
• Check that the harness connector, te rminals and the EPS control unit are free of foreign materials
before installing.
• Replace the EPS control unit if it has been dropped or sustained an impact.
After installing steering column, perform self-diagnosis with CONSULT to ensure correct operation. Refer to
STC-6, "
CONSULT Function".
1. Steering column 2. Bracket plate3. EPS control unit
Front
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ST-1
STEERING
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CONTENTS
STEERING SYSTEM
PRECAUTION ....... ........................................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Service Notice or Precautions for Steering System
......
2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
BASIC INSPECTION ....................................5
STEERING WHEEL ........................................ .....5
Inspection ............................................................ ......5
SYMPTOM DIAGNOSIS ...............................7
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
7
NVH Troubleshooting Chart ................................ ......7
REMOVAL AND INSTALLATION ................8
STEERING WHEEL ........................................ .....8
Exploded View .................................................... ......8
Removal and Installation ...........................................8
STEERING COLUMN ..................................... .....9
Exploded View .................................................... ......9
Removal and Installation ...........................................9
Inspection ............................................................ ....10
STEERING SHAFT ...........................................12
Exploded View .........................................................12
Removal and Installation .........................................12
Inspection ................................................................13
STEERING GEAR AND LINKAGE ...................14
Exploded View .........................................................14
Removal and Installation .........................................14
Inspection ................................................................14
UNIT DISASSEMBLY AND ASSEMBLY ....16
STEERING GEAR AND LINKAGE ...................16
Exploded View ..................................................... ....16
Disassembly and Assembly .....................................16
Inspection ................................................................18
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
19
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
19
General Specifications ......................................... ....19
Steering Wheel Axial End Play and Play .................19
Steering Wheel Turning Force .................................19
Steering Angle ..................................................... ....19
Steering Column Operating Range .........................19
Rack Stroke ......................................................... ....20
Ball Joint Swing Force .............................................20
Ball Joint Axial End Play ..........................................20
Inner Socket Length ................................................20
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ST-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000012430493
The Supplemental Restraint System such as “A IR 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. Information necessary to service the system safely is included in the SR and SB section of
this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harn esses can be identified 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 Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c 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 three minutes before performing any service.
Service Notice or Precautions for Steering SystemINFOID:0000000012430494
• In case of removing the steering gear, make the final tightening with grounded and unloaded vehicle condi- tion, and then check wheel alignment.
• Observe the following precautions when disassembling.
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is im portant to prevent the internal parts from becoming
contaminated by dirt or other foreign matter.
- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; co mmon shop rags can leave lint that might interfere with
their operation.
- Do not reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.
FOR ELECTRIC POWER STEERING (EPS)
• During quick steering, rasping noise may be heard from around the steering wheel. This is not a malfunction.
The noise is an operating noise of the EPS system under normal conditions. If the rasping noise occurs dur-
ing slow steering, this may not be an operating noise of the system. In this case, it is necessary to find out
the location of the noise and repair, if necessary.
• Do not repeat static steering. (Mot or and EPS control unit could be heated.)
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PREPARATIONST-3
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000012430495
The actual shape of the tools may di ffer from those illustrated here.
Commercial Service ToolINFOID:0000000012430496
Tool number
(TechMate No.)
Tool name Description
ST3127S000
(J-25765-A)
Preload gauge Inspecting steering column rotating torque,
pinion rotating torque and ball joint rotating
torque
—
(J-44372)
Pull gauge Measuring steering wheel turning force or rack
sliding force
ZZA0806D
LST024
Tool name
Description
Ball joint remover Remove steering outer socket
Boot band crimping tool Installing boot clamp (large diameter)
S-NT146
ZZA1229D
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ST-4
< PREPARATION >
PREPARATION
Steering wheel pullerRemoving steering wheel
Power tool Loosening nuts, screws and bolts
Tool name
Description
ZZA0819D
PIIB1407E
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STEERING WHEELST-5
< BASIC INSPECTION >
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BASIC INSPECTION
STEERING WHEEL
InspectionINFOID:0000000012430497
CONDITION OF INSTALLATION
• Check installation conditions of steering gear, front suspension, axle and steering column.
• Check if movement exists when steering wheel is mo ved up and down, to the left and right and to the axial
direction.
• Verify that the steering gear nuts are tightened to specification. Refer to ST-14, "
Exploded View".
STEERING WHEEL PLAY
1. Set the front wheels and tires in the straight-ahead position, start engine, then lightly turn steering wheel
to the left and right until the front wheels start to move. Measure steering wheel movement on the outer
circumference.
2. When the measurement value is outside the standard va lue, check backlash for each joint of steering col-
umn and installation condition of steering gear.
STEERING WHEEL NEUTRAL POSITION
Check steering wheel neutral position using the following procedure:
1. Confirm that front wheel alignment is correct. Refer to FSU-8, "
Adjustment".
2. Set the front wheels and tires in the straight-ahead posit ion, check if steering wheel is in the neutral posi-
tion.
3. If it is not in the neutral position, remo ve steering wheel and reinstall it correctly.
4. If the neutral position cannot be attained by repositi oning the steering wheel two teeth or less on steering
stem, loosen the steering gear outer socket lock nuts, then adjust the inner sockets by the same amount
in the opposite direction.
5. Re-check the front wheel alignment. Refer to FSU-8, "
Adjustment".
STEERING WHEEL TURNING FORCE
1. Park vehicle on a level and dry surface, set parking brake.
2. Tires need to be inflated normal pressure. Refer to WT-54, "
Tire Air Pressure".
3. Start engine.
4. Check steering wheel turning force using Tool when steering wheel has been turned 360 ° from the neutral position.
5. If steering wheel turning force is out of specification, inspect steering column. Refer to ST-10, "
Inspection".
6. If steering column meets specification, inspect steering gear. Refer to ST-14, "
Inspection".
FRONT WHEEL TURNING ANGLE
1. Perform toe-in inspection. Refer to FSU-8, "Adjustment".
CAUTION: Steering wheel axial end play : Refer to
ST-19, "
Steering Wheel
Axial End Play and Play".
Steering wheel play on the
outer circumference : Refer to
ST-19, "
Steering Wheel Axia l End Play and Play".
Tool number : — (J-44372)
Steering wheel turning
force : Refer to
ST-19, "
Steering
Wheel Turning Force".
SGIA1523J
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ST-6
< BASIC INSPECTION >
STEERING WHEEL
Perform front wheel turning angle inspection, after toe-in inspection.
2. Place front wheels on turning radius gauges and rear wheels on stands, so that vehicle can be level.
3. Check the maximum inner and outer wheel turning angles for (LH/ RH) wheels and tires.
• With the engine at idle, turn steering wheel from full left stop tofull right stop and measure the turning angles.
• Check the following items when turning angle is out of the standard.
- Check rack stroke (L).
- Disassemble steering gear to check the cause that rack stroke is outside of the standard.
• Steering angles are not adjustable. Check steering gear, steer- ing column and front suspension components for wear or dam-
age if any of the turning angles are different from the specified
value. Replace any of them, if any non-standard condition
exists.
FAA0016D
Inner wheel (Angle: A) : Refer to ST-19, "Steering
Angle".
Outer wheel (Angle: B) : Refer to ST-19, "
Steering
Angle".
SGIA0055E
Rack stroke (L) : Refer to ST-20, "Rack Stroke".
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGST-7
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000012430498
Use the chart below to find the cause of the symp tom. If necessary, repair or replace these parts.
×: Applicable
Reference page
ST-14, "
Inspection
"
ST-14, "
Inspection
"
ST-14, "
Inspection
"
ST-5, "
Inspection
"
ST-5, "
Inspection
"
ST-9, "
Removal and Installation
"
ST-14, "
Exploded View
"
ST-10, "
Inspection
"
ST-9, "
Exploded View
"
ST-14, "
Exploded View
"
FAX-6, "
NVH Troubleshooting Chart
"
RAX-4, "
NVH Troubleshooting Chart
"
FSU-5, "
NVH Troubleshooting Chart
"
RSU-4, "
NVH Troubleshooting Chart
"
WT-43, "
NVH Troubleshooting Chart
"
WT-43, "
NVH Troubleshooting Chart
"
FAX-6, "
NVH Troubleshooting Chart
"
BR-7, "
NVH Troubleshooting Chart
"
Possible cause and
SUSPECTED PARTS
Outer/inner socket ball joint swinging torque
Outer/inner socket ball joint rotating torque
Outer/inner socket ball joint end play
Steering wheel play
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting looseness
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
AXLE and SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
Symptom Noise
×××× ×× × ××××
Shake ×××× ××××
Vibration ××××× × × ×
Shimmy ×× × ××××
Shudder ×× × × ×× ×
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ST-8
< REMOVAL AND INSTALLATION >
STEERING WHEEL
REMOVAL AND INSTALLATION
STEERING WHEEL
Exploded ViewINFOID:0000000012430499
Removal and InstallationINFOID:0000000012430500
REMOVAL
1. Set the front wheels and tires in the straight-ahead position.
2. Remove driver air bag module. Refer to SR-12, "
Removal and Installation".
3. Remove steering wheel lock nut.
4. Remove steering wheel using suitable tool. CAUTION:
Place a piece of tape across the spiral cable so it will not be rotated out of position.
5. Inspect steering wheel near the puller holes for damage. Replace as necessary.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not reuse steering wheel lock nut.
• Align spiral cable correctly before installing steering wheel . Make sure that the spiral cable is in the neutral
position. Refer to SR-16, "
Removal and Installation".
• Adjust the neutral position of the steering angle sensor. Refer to BRC-55, "
ADJUSTMENT OF STEERING
ANGLE SENSOR NEUTRAL POSITION : Description".
CAUTION:
• The spiral cable may snap due to steering operation if the cable is not installed in the correct posi-
tion.
• With the steering linkag e disconnected, the cable may snap by turning the steering wheel beyond
the limited number of turns.
1. Steering wheel
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STEERING COLUMNST-9
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STEERING COLUMN
Exploded ViewINFOID:0000000012430501
Removal and InstallationINFOID:0000000012430502
CAUTION:
• Any time the ignition switch has been disconnected, removed or installed; the vehicle keys must be
re-registered in the BCM. Refer to CONSULT operations manual.
• Care must be taken not to rotate the steering gear during the removal or inst allation of the steering
column.
• Care must be taken not to allow axial impact to the steering column during removal or installation.
REMOVAL
1. Set the front wheels and tires in the straight-ahead position.
2. Set the steering column tilt to the lowest position.
CAUTION:
Securely lock the tilt lever.
3. Remove instrument lower panel LH. Refer to IP-24, "
Removal and Installation".
4. Remove spiral cable. Refer to SR-16, "
Removal and Installation".
5. Remove combination switch. Refer to EXL-107, "
Removal and Installation".
6. Remove cluster lid A. Refer to IP-21, "
Removal and Installation".
7. Disconnect the harness connector from the ignition switch.
8. Disconnect the harness connector from the key switch.
9. For models with CVT but without intelligent key system , perform the following steps to separate key inter-
lock cable from steering lock unit:
1. Steering column 2. Clamp
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