2014 NISSAN TEANA power steering

HYDRAULIC LINEST-41
< REMOVAL AND INSTALLATION >
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VQ35DE
Removal and InstallationINFOID:0000000009461277
NOTE:
When removing components such as hoses, tubes/lines, etc. , cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
ALGIA0134GB
1. Power steering pump assembly 2. High pressure piping (upper) 3. Low pressure piping (lower)
4. Power steering gear assembly 5. Low pressure piping (lower) 6. Low pressure piping (upper)
7. Engine mount bracket A. View A B. View B
Front
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ST-42
< REMOVAL AND INSTALLATION >
HYDRAULIC LINE
Refer to the component parts location illustration for hydraulic line removal. Refer to ST-40, "Exploded View".
CAUTION:
Do not reuse O-rings.
INSTALLATION
Installation is in the reverse order of removal.
• Bleed air from power steering system. Refer to ST-30, "Air Bleeding Hydraulic System"
.
• Check for fluid leaks. Repair as necessary.
CAUTION:
Do not reuse O-rings.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ST-44
< UNIT DISASSEMBLY AND ASSEMBLY >
STEERING GEAR AND LINKAGE
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.
4. Install boot clamp to boot small end.
5. Install boot clamp to boot large end using Tool. CAUTION:
Do not reuse boot clamps.
6. Adjust inner socket to standard length (L), and then tighten lock nut to the specified torque. Check length of inner socket (L)
again after tightening lock nut. Make sure that the length is the
standard.
CAUTION:
Adjust toe-in after this proced ure. The length achieved after
toe-in adjustment is not necessarily the above value.
AWGIA0107ZZ
Tool number : KV40107300 ( — )
AST139
Inner socket length (L) : Refer to ST-47, "Power
Steering Gear".
SGIA0167E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

POWER STEERING OIL PUMPST-45
< UNIT DISASSEMBLY AND ASSEMBLY >
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POWER STEERING OIL PUMP
Disassembly and AssemblyINFOID:0000000009461280
The power steering oil pump is not serviceable and should be replaced as an assembly. Refer to ST-38,
"Removal and Installation".
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SERVICE DATA AND SPECIFICATIONS (SDS)ST-47
< SERVICE DATA AND SPECIFICATIONS (SDS)
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Unit: mm (in)
Power Steering GearINFOID:0000000009461284
STEERING OUTER SOCK ET AND INNER SOCKET
RACK STROKE
Tilt operating range (L1) 50 (1.97)
Telescopic operating range (L
2) 60 (2.4)
ALGIA0136ZZ
Outer socketRocking torque 0.3 - 2.9 N·m (0.0
3 - 0.29 kg-m, 3.0 - 25 in-lb)
• Measurement on spring balance
• Measuring point: cotter pin hole of stud 1.4 - 42.7 N (0.14 - 4.4 kg, 12 - 31 lb)
Rotating torque 0.3 - 2.9 N·m (0.03 - 0.29 kg-m, 3.0 - 25 in-lb)
Axial end play 0.4 mm (0.020 in) or less
Inner socket Rocking torque 0.1 - 7.8 N·m (0.0
1 - 0.79 kg-m, 1.0 - 69 in-lb)
• Measurement on spring balance
• Measuring point at * mark shown 0.8 - 64 N (0.082 - 6.5 kg, 0.18 - 14.4 lb)
Axial end play 0.2 mm (0.008 in) or less
Inner socket length (L) 89.7 mm (3.5in) or less
SGIA0167E
AWGIA0003GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

ST-48
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
RACK SLIDING FORCE
Power Steering Oil PumpINFOID:0000000009461285
Power Steering FluidINFOID:0000000009461286
P215/60R16 P215/55R17 - P245/45R18
Rack stroke in neutral position (L) 72.5 mm (2.9in) 70.0 mm (2.8in)
Average 330 N (33.7 kg, 74.2 lb)
Relief oil pressure
9,700 - 10,300 kPa (98.9 - 105.1 kg/cm2, 1406.5 - 1493.5 psi)
Fluid type E-PSF
Fluid capacity 1.1 (1-1/8 US qt, 1 lmp qt)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

STC-1
STEERING
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SECTION STC
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CONTENTS
STEERING CONTROL SYSTEM
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Service Notice and Precautions for Hydraulic
Pump Electric Power Steering System ............... ......
3
SYSTEM DESCRIPTION ..............................4
COMPONENT PARTS ................................... .....4
Component Parts Location .................................. ......4
Component Description .............................................4
Power Steering Oil Pump Assembly .........................5
SYSTEM ..............................................................6
HYDRAULIC PUMP ELECTRIC POWER STEER-
ING SYSTEM ........ ................................. ......................
6
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : System Description ..............
6
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : Fail-sa fe ......................... ......
8
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM : Protec tion Function ..............
9
DIAGNOSIS SYSTEM (POWER STEERING
CONTROL MODULE) .................................... ....
10
CONSULT Function ............................................ ....10
ECU DIAGNOSIS INFORMATION ..............11
POWER STEERING CONTROL MODULE .... ....11
Reference Value ................................................. ....11
Fail-safe ..................................................................12
Protection Function .................................................12
DTC Inspection Priority Chart ............................. ....13
DTC Index ........................................................... ....13
WIRING DIAGRAM ......................................14
HYDRAULIC PUMP ELECTRIC POWER
STEERING SYSTEM .........................................
14
Wiring Diagram .................................................... ....14
BASIC INSPECTION ...................................19
DIAGNOSIS AND REPAIR WORK FLOW .......19
Work Flow ............................................................ ....19
Diagnostic Work Sheet ............................................20
DTC/CIRCUIT DIAGNOSIS .........................22
C1143 STEERING ANGLE SENSOR ...............22
DTC Logic ............................................................ ....22
Diagnosis Procedure ...............................................22
C1601 BATTERY POWER SUPPLY ................23
DTC Logic ................................................................23
Diagnosis Procedure ...............................................23
C1602 NO TUNING SET ...................................26
DTC Logic ................................................................26
Diagnosis Procedure ...............................................26
C1606 EPS MOTOR ..........................................27
DTC Logic ................................................................27
Diagnosis Procedure ...............................................27
C1607, C1608 POWER STEERING CON-
TROL MODULE ................................................
28
DTC Logic ............................................................ ....28
Diagnosis Procedure ...............................................28
C160A HEAT PROTECTION ............................29
DTC Logic ................................................................29
U1000 CAN COMM CIRCUIT ...........................30
Description ...............................................................30
DTC Logic ................................................................30
Diagnosis Procedure ...............................................30
HYDRAULIC PUMP ELECTRIC POWER
STEERING WARNING LAMP ...........................
31
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

STC-2
Component Function Check ...................................31
Diagnosis Procedure ..............................................31
SYMPTOM DIAGNOSIS .............................32
HYDRAULIC PUMP ELECTRIC POWER
STEERING WARN ING LAMP DOES NOT
TURN ON ........................................................ ...
32
Description ........................................................... ...32
Diagnosis Procedure ..............................................32
HYDRAULIC PUMP ELECTRIC POWER
STEERING WARN ING LAMP DOES NOT
TURN OFF ...................................................... ...
33
Description ........................................................... ...33
Diagnosis Procedure ..............................................33
STEERING WHEEL TURNING FORCE IS
HEAVY OR LIGHT .......................................... ...
34
Diagnosis Procedure ............................................ ...34
UNBALANCE STEERING WHEEL TURNING
FORCE AND RETURN BETWEEN RIGHT
AND LEFT ...................................................... ...
36
Diagnosis Procedure ............................................ ...36
UNBALANCE STEERING WHEEL TURNING
FORCE (TORQUE VARIATION) .................... ...
37
Diagnosis Procedure ............................................ ...37
UNIT REMOVAL AND INSTALLATION ....39
POWER STEERING CONTROL MODULE .......39
Removal and Installation .........................................39
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM