Nissan Altima L32. Instruction — part 1395
SERVICE DATA AND SPECIFICATIONS (SDS)
ST-33
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
D
E
F
H
I
J
K
L
M
A
B
ST
N
O
P
Unit: mm (in)
Steering Gear
INFOID:0000000004204041
STEERING OUTER SOCKET AND INNER SOCKET
RACK STROKE
Tilt operating range "L
1
"
41 (1.61)
Telescopic operating range "L
2
"
40 (1.57)
SGIA1179E
Steering gear type
PR26AF
Outer socket
Swinging torque
0.1 - 2.9 N·m (0.01 - 0.29 kg-m, 1.0 - 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
0.5 mm (0.020 in) or less
Inner socket
Swinging torque
0.1 - 7.8 N·m (0.01 - 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”
Nominal
93.3 mm (3.673 in)
Maximum
98.3 mm (3.870 in)
SGIA0950E
ST-34
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Oil Pump
INFOID:0000000004204042
Steering Fluid
INFOID:0000000004204043
Steering gear model
PR26AF
Tire size
P215/60R16
P215/55R17
P235/45R18
Rack neutral position, dimension “L” (rack stroke)
71.5 mm (2.815 in)
69.0 mm (2.717 in)
66.5 mm (2.167 in)
AWGIA0003GB
Oil pump relief hydraulic pressure
8,520 - 9,320 kPa (86.9 - 95.1 kg/cm
2
, 1,235 - 1,351 psi)
Fluid type and capacity
Refer to
STC-1
STEERING
C
D
E
F
H
I
J
K
L
M
SECTION
STC
A
B
STC
N
O
P
CONTENTS
STEERING CONTROL SYSTEM
BASIC INSPECTION . . . . . . . . .
DIAGNOSIS AND REPAIR WORKFLOW . . ..
Work Flow . . . . . . . . . . . . . . . .....
FUNCTION DIAGNOSIS . . . . . . . ...
EPS SYSTEM . . . . . . . . . . . . . ..
System Diagram . . . . . . . . . . . . . ....
System Description . . . . . . . . . . . . ...
Component Parts Location . . . . . . . . . ....
Component Description . . . . . . . . . . .....
COMPONENT DIAGNOSIS . . . . . . ..
POWER SUPPLY AND GROUND CIRCUIT . ...
Description . . . . . . . . . . . . . . . ....
Diagnosis Procedure . . . . . . . . . . . .....
POWER STEERING SOLENOID VALVE . . ...
Description . . . . . . . . . . . . . . . ....
Diagnosis Procedure . . . . . . . . . . . .....
ENGINE SPEED SIGNAL CIRCUIT . . . . ...
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ...
VEHICLE SPEED SIGNAL CIRCUIT . . . . .
Description . . . . . . . . . . . . . . . ..
Diagnosis Procedure . . . . . . . . . . . ...
ECU DIAGNOSIS . . . . . . . . . . .
POWER STEERING CONTROL UNIT . . . ..
Reference Value . . . . . . . . . . . . . ..
Wiring Diagram — ELECTRONICALLY CON-
TROLLED POWER STEERING SYSTEM — . . ..
Fail Safe . . . . . . . . . . . . . . . . ..
SYMPTOM DIAGNOSIS . . . . . . . ..
UNBALANCE STEERING WHEEL TURNING
FORCE (TORQUE VARIATION) . . . . . ...
Description . . . . . . . . . . . . . . . ...
Diagnosis Procedure . . . . . . . . . . . ...
PRECAUTION . . . . . . . . . . . ..
PRECAUTIONS . . . . . . . . . . . . .
Precautions Necessary for Steering Wheel Rota-
tion after Battery Disconnect . . . . . . . . ...
REMOVAL AND INSTALLATION . . . ...
EPS CONTROL UNIT . . . . . . . . . ...
STC-2
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORKFLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow
INFOID:0000000004205823
DETAILED FLOW
1.
COLLECT THE INFORMATION FROM THE CUSTOMER
It is also important to clarify customer complaints before inspection. First of all, reproduce symptoms, and
understand them fully. Ask customer about his/her complaints carefully. In some cases, it will be necessary to
check symptoms by driving vehicle with customer.
>> GO TO 2.
2.
BASIC INSPECTION
1. Check the power steering fluid leakage and the power steering fluid level. Refer to
2. Check the drive belt tension. Refer to
(VQ35DE).
3. Check the power steering gear for damages, cracks and oil leakage. Refer to
.
4. Check the relief oil pressure. Refer to
>> GO TO 3.
3.
TROUBLE DIAGNOSIS FOR SYMPTOM
Perform the diagnosis by symptom. Refer to
.
>> GO TO 4.
4.
FINAL CHECK
Check the input/output standard values for the power steering control unit.
Are the power steering control unit input/output values within standard ranges respectively?
YES
>> Inspection End
NO
>> GO TO 2.
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