Steering System: Section
Steering System: Section
Steering System: Section
ST
A
B
SECTION
STEERING SYSTEM C
E
CONTENTS
PRECAUTION ............................................... 2 Inspection ................................................................10 F
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 SR 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 SR 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.
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 electric 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 3 minutes before performing any service.
Service Notice or Precautions for Steering System INFOID:0000000009266805
• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle
condition, 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 important 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; common 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.
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number Description
(Kent-Moore No.) C
Tool name
ST3127S000 Inspecting of rotating torque for ball joint
(J-25765-A) and steering column D
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench E
2. HT62940000
( – )
Socket adapter
3. HT62900000
F
S-NT541
( – )
Socket adapter
KV48103500 Measuring oil pump relief pressure ST
(J-26357)
Pressure gauge
H
S-NT547 I
KV40107300 Installing boot clamps
( — )
Boot clamp crimping tool J
K
ZZA1229D
S-NT542
N
LST024
NT146
ZZA0819D
PIIB1407E
Steering wheel axial end play : Refer to ST-19, "Steering Wheel Axial End Play and Play".
and play
H
2. 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.
NEUTRAL POSITION STEERING WHEEL I
1. Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.
2. Check wheel alignment within specification. Refer to FSU-6, "Inspection and Adjustment". J
3. 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
steering wheel is not in the neutral position. K
CAUTION:
If the adjustment is performed by using the inner socket, check wheel alignment after the adjust-
ment. Refer to FSU-6, "Inspection and Adjustment". L
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-45, "Tire Air Pressure". M
3. Start engine.
4. Check steering wheel turning force when steering wheel has
been turned 360° from neutral position using Tool as shown. N
SGIA1523J
FAA0016D
• With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.
SGIA0055E
• Check the following items when turning angle is out of the standard.
- Check rack stroke (L).
×: Applicable
Reference page
Noise
Possible cause and SUSPECTED PARTS
Shake
NVH Troubleshooting Chart
Shimmy
Shudder
Vibration
SYMPTOM DIAGNOSIS
×
Outer/inner socket ball joint rotating torque ST-15, "Inspection"
×
Outer/inner socket ball joint end play ST-15, "Inspection"
×
×
Steering wheel play ST-5, "Inspection"
ST-7
Improper steering wheel ST-5, "Inspection"
×
×
×
Improper installation or looseness of tilt lock lever ST-9, "Removal and Installation"
×
×
×
×
×
×
×
Mounting looseness ST-14, "Exploded View"
×
×
Steering column deformation or damage ST-10, "Inspection"
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
×
Improper installation or looseness of steering column ST-9, "Exploded View"
×
×
Steering linkage looseness ST-14, "Exploded View"
×
×
×
×
×
AXLE and SUSPENSION
FSU-5, "NVH Troubleshooting Chart"
RSU-4, "NVH Troubleshooting Chart"
×
×
×
×
×
TIRE WT-37, "NVH Troubleshooting Chart"
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
×
×
× ROAD WHEEL WT-37, "NVH Troubleshooting Chart"
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
×
×
×
DRIVE SHAFT FAX-6, "NVH Troubleshooting Chart"
×
×
×
L
F
P
K
E
B
A
N
ST
H
D
C
O
M
STEERING WHEEL
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION
STEERING WHEEL
Exploded View INFOID:0000000009266810
JSGIA0704GB
1. Steering wheel
REMOVAL
NOTE:
When reconnecting spiral cable, secure cable with a tape so that case and rotating part stay aligned. This will
omit neutral position alignment procedure during spiral cable installation.
1. Set vehicle to the straight-ahead position.
2. Remove driver air bag module. Refer to SR-11, "Removal and Installation".
3. Remove steering wheel lock nut after steering is locked.
4. Remove steering wheel using a suitable tool (A).
JSGIA0654ZZ
INSTALLATION
Installation is in the reverse order of removal.
• Check the spiral cable neutral position after replacing or rotating spiral cable. Refer to SR-14, "Removal and
Installation".
CAUTION:
• Do not twist spiral cable excessively after it becomes tight. (Twisting may cause the cable to be
torn off.)
• Do not reuse steering wheel lock nut.
ST
JPGIA0110GB
REMOVAL I
CAUTION:
• Keep steering column assembly away from magnetic sources.
• Do not disassemble steering column assembly. J
• While removing the steering column assembly, do not move the steering gear.
• When removing the steering column assembly, be careful not to allow the intermediate shaft to turn.
1. Set vehicle to the straight-ahead position.
K
2. Place the steering column tilt to the lowest selection.
3. Remove instrument lower panel LH. Refer to IP-20, "Removal and Installation".
4. Remove driver air bag module. Refer to SR-11, "Removal and Installation". L
5. Remove steering wheel. Refer to ST-8, "Exploded View".
6. Remove steering column covers. Refer to IP-15, "Removal and Installation".
7. Remove spiral cable. Refer to SR-14, "Removal and Installation". M
8. Remove combination switch. Refer to EXL-107, "Exploded View"
9. Remove the cluster lid A. Refer to IP-19, "Removal and Installation"
10. Disconnect the harness connectors from the steering switch. N
11. Remove the key cylinder only if the steering column is being replaced. Refer to TM-435, "Removal and
Installation".
O
12. Place the steering column tilt to the middle selection.
CAUTION:
Do not change the position of the tilt mechanism until the steerign column is reinstalled.
13. Loosen the steering shaft lower joint bolt. P
14. Remove the intermediate shaft upper bolt and separate intermediate shaft from steering column assem-
bly. Refer to ST-12, "Removal and Installation".
CAUTION:
• Place a matching mark on both intermediate shaft and steering column assembly before remov-
ing intermediate shaft.
SGIA1295E
Inspection INFOID:0000000009266814
JPGIA0085ZZ
JPGIA0111ZZ
D
JPGIA0043ZZ
ST
JPGIA0112GB
REMOVAL
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.
1. Set vehicle to the straight-ahead position.
2. Place the steering column tilt to the middle selection.
3. Remove instrument lower panel LH. Refer to IP-20, "Removal and Installation".
4. Loosen lower joint upper bolt.
5. Remove lower joint lower bolt and separate lower joint from steering gear assembly.
CAUTION:
• Place a matching mark on both lower joint and steering gear assembly before removing lower
joint.
• When removing lower joint, do not insert any tool into the yoke groove to pull out the lower joint.
Replace the lower joint with a new one if damaged.
6. Remove lower joint from intermediate shaft.
7. Remove intermediate shaft bolt (steering column side), and remove intermediate shaft from steering col-
umn assembly.
CAUTION:
• Place a matching mark on both intermediate shaft and steering column assembly before remov-
ing intermediate shaft.
• When removing intermediate shaft, do not insert any tool into the yoke groove to pull out the
intermediate shaft or damage could occur. Replace intermediate shaft with a new one if dam-
aged.
INSTALLATION
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.
Installation is in the reverse order of removal.
• Before installation, check that the tilt position is at the middle level.
• For intermediate shaft bolt, and lower joint bolt direction, refer to ST-12, "Exploded View".
JPGIA0041ZZ
D
• When connecting intermediate shaft upper side (1) and column
shaft, make sure the bolt is securely seated in groove (A) of col-
umn shaft before final tightening. E
• Perform inspection after installation. Refer to ST-13, "Inspection".
ST
SGIA1295E
Inspection INFOID:0000000009266817
H
AWGIA0236ZZ
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Set vehicle to the straight-ahead position.
2. Place the steering column tilt to middle selection.
3. Loosen lower joint upper bolt.
4. Remove lower joint lower bolt. Refer to ST-9, "Removal and Installation".
CAUTION:
• Spiral cable may be cut if steering wheel turns while separating steering column assembly and
steering gear assembly. Always secure the steering wheel using string to avoid turning.
• Place a matching mark on both lower joint and steering gear assembly before removing lower
joint.
• When removing lower joint, do not place any tool into the yoke groove to pull out the lower joint.
Replace the lower joint with a new one if damaged.
5. Remove the wheel and tire assemblies using power tool. Refer to WT-39, "Adjustment".
6. Remove steering outer socket from steering knuckle using Tool.
SGIA0184J
ALGIA0098GB
DISASSEMBLY
1. Remove outer socket locknut and outer socket.
2. Remove boot clamps and boot.
3. Remove inner socket.
ASSEMBLY
1. Apply Three Bond 1111B or equivalent to inner socket and turn pinion fully to retract inner socket into gear
housing assembly.
2. Install large end (1) of boot (2) to gear housing assembly.
3. Install small end (3) of boot (2) to inner socket boot mounting
groove.
AWGIA0107ZZ
ST
AST139
6. Adjust inner socket to standard length (L) and then tighten lock H
nut to the specified torque. Check length of inner socket (L)
again after tightening lock nut. Make sure that the length is the
standard. I
Inspection INFOID:0000000009266823
L
INSPECTION AFTER DISASSEMBLY
Boot
• Check boot for cracks and replace it if damage exists. M
Steering gear Assembly
• Check steering gear assembly for damage and scratches (inner wall). Replace if there are any abnormal
conditions. N
Outer Socket and Inner Socket
• Check the following items and replace the component if it does not meet the standard.
O
BALL JOINT SWINGING FORCE
JSGIA0109ZZ
Unit: mm (in) D
Item Standard
Steering wheel axial end play 0 (0)
Steering wheel play on the outer circumference 0 - 35 (0 - 1.38) E
F
Unit: N (kg-f, lb-f)
Item Standard
Steering wheel turning force 36 (3.7, 8.09) or less ST
SGIA0055E
Item Standard L
Minimum 34° 30′ (34.5°)
Inner wheel (Angle A) Nominal 37° 30′ (37.5°)
M
Maximum 38° 30′ (38.5°)
Outer wheel (Angle B) Nominal 32° 00′ (32.0°)
Item Standard O
Tilt operating range* 39.4 mm (1.551 in)
Rotating torque 0 – 2.1 N·m (0 – 0.21 kg-m, 0 – 2 in-lb)
P
Steering column length* 477.9 mm (18.81 in)
Unit: mm (in)
JSGIA0272ZZ
Item Standard
Rack stroke neutral position (L) 64.6 (2.543)
Item Standard
Outer socket * 6.0 – 58 N (0.61 – 5.9 kg-f, 1.35 – 13.03 lb-f)
Spring balance measurement
Inner socket Spring balance measurement* 3.5 – 34.7 N (0.36 – 3.5 kg-f, 0.79 – 7.8 lb-f)
Unit: mm (in)
Item Standard
Outer socket 0.5 (0.020) or less
Inner socket 0.2 (0.008 in) or less
Unit: mm (in)
Item Standard
Rack neutral position, dimension 67.3 (2.650)