Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Maxima 2006-2009 Approved Nissan Maxima 2009 STC
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STEERING
A
SECTION
STEERING CONTROL SYSTEM
STC B
C
D
E
CONTENTS
BASIC INSPECTION ................................... 2
. Diagnosis Procedure ..............................................12
. F
DIAGNOSIS AND REPAIR WORKFLOW ......... 2
. ECU DIAGNOSIS ........................................ 14
.
Work Flow ................................................................ 2
.
POWER STEERING CONTROL UNIT .............. 14 STC
FUNCTION DIAGNOSIS .............................. 3
. Reference Value .....................................................14.
Wiring Diagram -- ELECTRONICALLY CON-
EPS SYSTEM ..................................................... 3
. TROLLED POWER STEERING SYSTEM -- .........15 . H
System Diagram ....................................................... 3
. Fail Safe .................................................................17
.
System Description .................................................. 3
.
Component Parts Location ....................................... 4
. SYMPTOM DIAGNOSIS ............................. 19
. I
Component Description ............................................ 5
.
UNBALANCE STEERING WHEEL TURNING
COMPONENT DIAGNOSIS ......................... 6
. FORCE (TORQUE VARIATION) ....................... 19
Description ..............................................................19
. J
POWER SUPPLY AND GROUND CIRCUIT ...... 6
. Diagnosis Procedure ..............................................19 .
Description ............................................................... 6
.
Diagnosis Procedure ................................................ 6
. PRECAUTION ............................................. 20
. K
POWER STEERING SOLENOID VALVE .......... 7
. PRECAUTIONS ................................................. 20
Description ............................................................... 7
. Precautions for Supplemental Restraint System
Diagnosis Procedure ................................................ 7
. (SRS) "AIR BAG" and "SEAT BELT PRE-TEN- L
Component Inspection ............................................. 8 . SIONER" ................................................................20
.
Precautions Necessary for Steering Wheel Rota-
ENGINE SPEED SIGNAL CIRCUIT ................... 9
. tion after Battery Disconnect ..................................20 . M
Description ............................................................... 9
.
Diagnosis Procedure ................................................ 9
. REMOVAL AND INSTALLATION .............. 21
.
VEHICLE SPEED SIGNAL CIRCUIT ................12
. EPS CONTROL UNIT ....................................... 21 N
Description ............................................................. 12
. Removal and Installation ........................................21
.
O
P
Revision: October 2008 STC-1 2009 Maxima
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work Flow INFOID:0000000003895475
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 ST-13, "Inspection".
2. Check the drive belt tension. Refer to EM-14, "Checking Drive Belts".
3. Check the power steering gear for damages, cracks and oil leakage. Refer to ST-13, "Inspection".
4. Check the relief oil pressure. Refer to ST-17, "Inspection".
>> GO TO 3.
3.TROUBLE DIAGNOSIS FOR SYMPTOM
Perform the diagnosis by symptom. Refer to STC-19, "Description".
>> 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.
Revision: October 2008 STC-2 2009 Maxima
EPS SYSTEM
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS A
EPS SYSTEM
System Diagram INFOID:0000000003895476
B
CONTROL DIAGRAM
C
D
E
F
STC
H
JSGIA0119GB
System Description INFOID:0000000003895477
I
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