Page 4385 of 5121
SRC-142
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JCHWM0191GB
Page 4386 of 5121
DIAGNOSIS SENSOR UNIT
SRC-143
< ECU DIAGNOSIS >
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JCHWM0192GB
Page 4387 of 5121
SRC-144
< ECU DIAGNOSIS >
DIAGNOSIS SENSOR UNIT
JCHWM0193GB
Page 4388 of 5121

SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
SRC-145
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
SRS AIR BAG WARNING LAMP DOES NOT TURN OFF
Diagnosis ProcedureINFOID:0000000003814106
1.CHECK FRONT AIR BAG MODULE
Check the deployment of front air bag module.
Is air bag module deployed?
YES >> Refer to SR-6, "Exploded View" or SR-12, "Exploded View".
NO >> GO TO 2.
2.CHECK AIR BAG FUSE
Check the air bag fuse. Refer to PG-82, "
Fuse".
Is 10A fuse [No.2, located in fuse block (J/B)] normal?
YES >> GO TO 4.
NO >> Replace the air bag fuse and GO TO 3.
3.CHECK AIR BAG FUSE AGAIN
Turn ignition switch ON.
Check the air bag fuse. Refer to PG-82, "
Fuse".
Did the air bag fuse blow again?
YES >> Repair or replace related harness.
NO >> GO TO 4.
4.CHECK SELF DIAGNOSIS RESULT
Perform “AIR BAG” Self Diagnostic result.
Is DTC detected?
YES >> Repair or replace the malfunctioning parts.
NO >> Check the intermittent incident. Refer to GI-35, "
Intermittent Incident".
Page 4389 of 5121
SRC-146
< SYMPTOM DIAGNOSIS >
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
SRS AIR BAG WARNING LAMP DOES NOT TURN ON
Diagnosis ProcedureINFOID:0000000003814107
1.CHECK METER FUSE
Check the meter fuse. Refer to PG-82, "
Fuse".
Is 10A fuse [No.4, located in fuse block (J/B)] normal?
YES >> GO TO 3.
NO >> Replace the fuse GO TO 2.
2.CHECK METER FUSE AGAIN
Turn ignition switch ON.
Check the meter fuse. Refer to PG-82, "
Fuse".
Did the meter fuse blow again?
YES >> Repair or replace the related harness.
NO >> INSPECTION END
3.CHECK HARNESS CONNECTION
1. Check harness connection between air bag diagnosis sensor unit and combination meter.
2. Disconnect air bag diagnosis sensor unit connector and turn ignition switch ON.
Did air bag warning lamp turn ON?
YES >> Replace air bag diagnosis sensor unit. Refer to SR-22, "Exploded View".
NO >> Replace combination meter assembly. Refer to MWI-127, "
Exploded View".
Page 4390 of 5121

PRECAUTIONS
SRC-147
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003814141
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. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
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 AIRBAG”.
Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
ServiceINFOID:0000000003814109
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect battery negative terminal and wait at least 3
minutes.
For approximately 3 minutes after the battery negative terminal is removed, it is still possible for the air bag
and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3
minutes have elapsed.
Diagnosis sensor unit must always be installed with their arrow marks “⇐” pointing towards the front of the
vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before installa-
tion and replace as required.
The spiral cable must be aligned in the neutral position since its rotations are limited. Do not turn steering
wheel and column after removal of steering gear.
Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad side
facing upward and seat mounted front side air bag module standing with the stud bolt side facing down.
Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Always replace instrument panel pad following front passenger air bag deployment.
Page 4391 of 5121

ST-1
STEERING
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CONTENTS
STEERING SYSTEM
SYMPTOM DIAGNOSIS ..... ..........................2
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
2
NVH Troubleshooting Chart ................................ ......2
PRECAUTION ...............................................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
3
Service Notice or Precautions for Steering System
......
3
PREPARATION ............................................5
PREPARATION .............................................. .....5
Special Service Tools .......................................... ......5
ON-VEHICLE MAINTENANCE .....................7
POWER STEERING FLUID ........................... .....7
Inspection ............................................................ ......7
STEERING WHEEL .............................................9
Inspection ............................................................ ......9
ON-VEHICLE REPAIR .................................12
STEERING WHEEL ........................................ ....12
Exploded View .................................................... ....12
Removal and Installation .........................................12
STEERING COLUMN .........................................13
Exploded View .................................................... ....13
Removal and Installation .........................................13
Inspection ................................................................14
LOWER SHAFT ................................................16
Exploded View ..................................................... ....16
Removal and Installation .........................................16
Inspection ................................................................17
STEERING GEAR AND LINKAGE ...................18
Exploded View .........................................................18
Removal and Installation .........................................19
Disassembly and Assembly .....................................20
Inspection ................................................................26
POWER STEERING OIL PUMP .......................28
Exploded View .........................................................28
Removal and Installation .........................................29
Disassembly and Assembly .....................................29
Inspection ................................................................32
HYDRAULIC LINE ............................................34
Exploded View .........................................................34
Removal and Installation .........................................35
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
37
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
37
General Specifications ......................................... ....37
Steering Wheel Axial End Play and Play .................37
Steering Wheel Turning Force .................................37
Steering Angle .........................................................37
Steering Column Length ..........................................37
Steering Column Mounting Dimensions ..................37
Steering Column Operating Range .........................37
Lower Shaft Sliding Range ......................................38
Rack Sliding Force ..................................................38
Rack Stroke .............................................................38
Socket Swing Force and Rotating Torque ...............38
Socket Axial End Play .............................................38
Inner Socket Length ................................................38
Relief Oil Pressure ...................................................38
Page 4392 of 5121

ST-2
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003806305
Use the chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference
ST-7, "
Inspection
"
ST-7, "
Inspection
"
ST-26, "
Inspection
"
ST-26, "
Inspection
"
ST-26, "
Inspection
"
ST-7, "
Inspection
"
ST-9, "
Inspection
"
ST-9, "
Inspection
"
EM-12, "
Checking
"
ST-9, "
Inspection
"—
ST-18, "
Exploded View
"
ST-14, "
Inspection
"
ST-13, "
Exploded View
"
ST-18, "
Exploded View
"
NVH in DLN section.
NVH in DLN section.
NVH in FAX, RAX, FSU, RSU section.
NVH in WT section.
NVH in WT section.
NVH in FAX section.
NVH in BR section.
Possible cause and SUSPECTED PARTS
Fluid level
Air in hydraulic system
Outer/inner socket ball joint swinging torque
Outer/inner socket ball joint rotating torque
Outer/inner socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
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
PROPELLER SHAFT
DIFFERENTIAL
AXLE and SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
Symptom SteeringNoise××××××××× ×× ×××××××
Shake× × × ×××××
Vibration××××××××
Shimmy×× × ××××
Judder××××××