torque NISSAN TEANA 2008 Service Manual

STC-1
STEERING
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SECTION STC
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STC
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CONTENTS
STEERING CONTROL SYSTEM
BASIC INSPECTION ....... .............................2
DIAGNOSIS AND REPAIR WORK FLOW .... .....2
Work Flow ........................................................... ......2
FUNCTION DIAGNOSIS ...............................3
EPS SYSTEM ... .............................................. .....3
System Diagram .................................................. ......3
System Description ...................................................3
Component Parts Location ........................................5
Component Description .............................................5
COMPONENT DIAGNOSIS ..........................6
POWER SUPPLY AND GROUND CIRCUIT .. .....6
Description .......................................................... ......6
Diagnosis Procedure .................................................6
POWER STEERING SOLENOID VALVE ...........7
Description .......................................................... ......7
Diagnosis Procedure .................................................7
Component Inspection ..............................................8
ENGINE SPEED SIGNAL CIRCUIT ............... .....9
Description .......................................................... ......9
Diagnosis Procedure .................................................9
VEHICLE SPEED SIGNAL CIRCUIT .................11
Description .......................................................... ....11
Diagnosis Procedure ...............................................11
ECU DIAGNOSIS .........................................13
POWER STEERING CONTROL UNIT ..............13
Reference Value .................................................. ....13
Wiring Diagram - ELECTRONICALLY CON-
TROLLED POWER STEERING SYSTEM - ............
14
Fail-Safe .............................................................. ....15
SYMPTOM DIAGNOSIS ..............................17
UNBALANCE STEERING WHEEL TURNING
FORCE (TORQUE VARIATION) .......................
17
Description ........................................................... ....17
Diagnosis Procedure ...............................................17
PRECAUTION ..............................................18
PRECAUTIONS .................................................18
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
18
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect ...................................
18
ON-VEHICLE REPAIR .................................19
POWER STEERING CONTROL UNIT ..............19
Exploded View ..................................................... ....19
Removal and Installation .........................................19

STC-4
< FUNCTION DIAGNOSIS >
EPS SYSTEM
 The valve driving voltage to control the power steering solenoid
valve varies according to the vehicle speed.
OPERATION PRINCIPLE
During Parking (When Turning The Steering Wheel To The Right.)
1. Power steering solenoid valve is closed while a vehicle is stopped.
2. Pinion “1R”, “2R” and “3R” are closed depending on steering torque of steering wheel.
3. Oil pressure “P” in the gear housing assembly is the sum of oil pressures occurred in “2R” and “3R”. This
results in a light steering force because of high pressure.
During High-speed Operation
1. Power steering solenoid valve is opened during high-speed operation.
2. Pinion “1R”, “2R” and “3R” are closed depending on steering torque of steering wheel.
3. Oil pressure “2R” does not occur because the power steering solenoid valve is on full throttle.
4. Oil pressure “P” in the gear housing assembly includes only oil pressure occurred in “3R” and results in a
heavy steering force.
JSGIA0374GB
JSGIA0020GB
JSGIA0021GB

UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIATION)
STC-17
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
UNBALANCE STEERING WHEEL TURNING FORCE (TORQUE VARIA-
TION)
DescriptionINFOID:0000000003893538
 Hard steering when fully turning the steering wheel.
 Light steering when driving at a high speed.
Diagnosis ProcedureINFOID:0000000003893539
1.CHECK SYSTEM FOR POWER SUPPLY AND GROUND
Perform trouble diagnosis for power supply and ground. Refer to STC-6, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts.
2.CHECK SYSTEM FOR VEHICLE SPEED SIGNAL
Perform trouble diagnosis for vehicle speed signal. Refer to STC-11, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK SYSTEM FOR ENGINE SPEED SIGNAL
Perform trouble diagnosis for engine speed signal. Refer to STC-9, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace damaged parts.
4.CHECK SYSTEM FOR POWER STEERING SOLENOID VALVE
Perform trouble diagnosis for power steering solenoid valve. Refer to STC-7, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> Perform the symptom diagnosis for the steering system. Refer to ST-2, "NVH Troubleshooting
Chart".
NO >> Repair or replace damaged parts.

TM-2
DTC Logic ...............................................................47
Diagnosis Procedure ..............................................47
Component Inspection ............................................48
P0710 CVT FLUID TEMPERATURE SENSOR
...
50
Description ..............................................................50
DTC Logic ...............................................................50
Diagnosis Procedure ..............................................50
Component Inspection (CVT Fluid Temperature
Sensor) ...................................................................
51
P0715 INPUT SPEED SENSOR (PRI SPEED
SENSOR) ...........................................................
52
Description ..............................................................52
DTC Logic ...............................................................52
Diagnosis Procedure ..............................................52
P0720 VEHICLE SPEED SENSOR CVT (SEC-
ONDARY SPEED SENSOR) .............................
55
Description ..............................................................55
DTC Logic ...............................................................55
Diagnosis Procedure ..............................................55
P0725 ENGINE SPEED SIGNAL ......................59
Description ..............................................................59
DTC Logic ...............................................................59
Diagnosis Procedure ..............................................59
P0730 BELT DAMAGE ......................................60
Description ..............................................................60
DTC Logic ...............................................................60
Diagnosis Procedure ..............................................60
P0740 TORQUE CONVERTER CLUTCH SO-
LENOID VALVE .................................................
62
Description ..............................................................62
DTC Logic ...............................................................62
Diagnosis Procedure ..............................................62
Component Inspection (Torque Converter Clutch
Solenoid Valve) ......................................................
63
P0744 A/T TCC S/V FUNCTION (LOCK -UP) ...64
Description ..............................................................64
DTC Logic ...............................................................64
Diagnosis Procedure ..............................................64
Component Inspection (Torque Converter Clutch
Solenoid Valve) ......................................................
65
Component Inspection (Lock-up Select Solenoid
Valve) .....................................................................
65
P0745 LINE PRESSURE SOLENOID VALVE ...66
Description ..............................................................66
DTC Logic ...............................................................66
Diagnosis Procedure ..............................................66
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] ........
67
P0746 PRESSURE CONTROL SOLENOID A
PERFORMANCE (LINE PRESSURE SOLE-
NOID VALVE) ....................................................
68
Description ..............................................................68
DTC Logic ...............................................................68
Diagnosis Procedure ...............................................68
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] ........
69
P0776 PRESSURE CONTROL SOLENOID B
PERFORMANCE (SEC PRESSURE SOLE-
NOID VALVE) ....................................................
70
Description ..............................................................70
DTC Logic ...............................................................70
Diagnosis Procedure ...............................................70
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] ........
71
Component Inspection [Pressure Control Sole-
noid Valve B (Secondary Pressure Solenoid
Valve)] .....................................................................
71
P0778 PRESSURE CONTROL SOLENOID B
ELECTRICAL (SEC PRESSURE SOLENOID
VALVE) ..............................................................
72
Description ..............................................................72
DTC Logic ...............................................................72
Diagnosis Procedure ...............................................72
Component Inspection [Pressure Control Sole-
noid Valve B (Secondary Pressure Solenoid
Valve)] .....................................................................
73
P0840 TRANSMISSION FLUID PRESSURE
SENSOR A (SEC PRESSURE SENSOR) .........
74
Description ..............................................................74
DTC Logic ...............................................................74
Diagnosis Procedure ...............................................74
P0841 PRESSURE SENSOR FUNCTION ........77
Description ..............................................................77
DTC Logic ...............................................................77
Diagnosis Procedure ...............................................77
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] ........
78
Component Inspection [Pressure Control Sole-
noid Valve B (Secondary Pressure Solenoid
Valve)] .....................................................................
78
P0845 TRANSMISSION FLUID PRESSURE
SENSOR B (PRI PRESSURE SENSOR) ..........
80
Description ..............................................................80
DTC Logic ...............................................................80
Diagnosis Procedure ...............................................80
P0868 SECONDARY PRESSURE DOWN ........83
Description ..............................................................83
DTC Logic ...............................................................83
Diagnosis Procedure ...............................................83
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] ........
84

TM-4
ROAD TEST .....................................................148
Description .............................................................148
Check before Engine Is Started .............................148
Check at Idle ..........................................................149
Cruise Test ............................................................150
CVT POSITION ................................................152
Inspection and Adjustment ....................................152
ON-VEHICLE REPAIR ...............................153
TRANSMISSION CONTROL MODULE ..........153
Exploded View .......................................................153
Removal and Installation .......................................153
Adjustment .............................................................154
CONTROL DEVICE .........................................155
Exploded View .......................................................155
Removal and Installation .......................................155
Inspection and Adjustment ....................................156
CONTROL CABLE ..........................................157
Exploded View .......................................................157
Removal and Installation .......................................157
Inspection and Adjustment ....................................158
OIL PAN ...........................................................159
Exploded View .......................................................159
Removal and Installation .......................................159
Inspection ..............................................................160
SECONDARY SPEED SENSOR .....................161
Exploded View .......................................................161
Removal and Installation .......................................161
Inspection ..............................................................161
DIFFERENTIAL SIDE OIL SEAL ....................162
Exploded View .......................................................162
Removal and Installation .......................................162
Inspection ..............................................................163
AIR BREATHER HOSE ...................................164
Exploded View .......................................................164
Removal and Installation .......................................164
FLUID COOLER SYSTEM ...............................165
Exploded View .......................................................165
Removal and Installation .......................................165
Inspection ..............................................................167
REMOVAL AND INSTALLATION ..............168
TRANSAXLE ASSEMBLY ..............................168
Exploded View .......................................................168
Removal and Installation .......................................168
Inspection ..............................................................170
DISASSEMBLY AND ASSEMBLY ............172
TORQUE CONVERTER ..................................172
Exploded View .......................................................172
Disassembly ..........................................................172
Assembly ..............................................................172
Inspection ..............................................................173
SERVICE DATA AND SPECIFICATIONS
(SDS) .........................................................
174
SERVICE DATA AND SPECIFICATIONS
(SDS) ................................................................
174
General Specification ............................................174
Vehicle Speed When Shifting Gears .....................174
Stall Speed ............................................................174
Line Pressure ........................................................174
Solenoid Valves ....................................................175
CVT Fluid Temperature Sensor ............................175
Primary Speed Sensor ..........................................175
Secondary Speed Sensor .....................................175
Step Motor ............................................................175
Torque Converter ..................................................175
CVT: RE0F10A
BASIC INSPECTION .................................
176
DIAGNOSIS AND REPAIR WORK FLOW .......176
Work Flow .............................................................176
Diagnostic Work Sheet .........................................177
INSPECTION AND ADJUSTMENT ..................179
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT ......................................................
179
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT : Service After Replacing TCM
and Transaxle Assembly .......................................
179
FUNCTION DIAGNOSIS ...........................181
CVT SYSTEM ...................................................181
System Diagram ...................................................181
Component Parts Location ...................................182
MECHANICAL SYSTEM ..................................183
Cross-Sectional View ............................................183
System Diagram ...................................................184
System Description ...............................................184
Component Parts Location ...................................185
Component Description ........................................186
HYDRAULIC CONTROL SYSTEM ..................187
System Diagram ...................................................187
System Description ...............................................187
Component Parts Location ...................................188
Component Description ........................................189
CONTROL SYSTEM .........................................190
System Diagram ...................................................190
System Description ...............................................190
Component Parts Location ...................................192
Component Description ........................................193
LOCK-UP AND SELECT CONTROL SYSTEM
..
194

TM-5
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194
System Description ...............................................194
Component Parts Location ....................................195
Component Description .........................................196
SHIFT CONTROL SYSTEM .............................197
System Diagram ....................................................197
System Description ...............................................197
Component Parts Location ....................................198
Component Description .........................................199
SHIFT LOCK SYSTEM .....................................200
System Description ...............................................200
Component Parts Location ....................................201
Component Description .........................................201
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....202
Diagnosis Description ...........................................202
DIAGNOSIS SYSTEM (TCM) ...........................204
CONSULT-III Function (TRANSMISSION) ...........204
Diagnostic Tool Function .......................................207
COMPONENT DIAGNOSIS .......................208
U1000 CAN COMM CIRCUIT ...........................208
Description ............................................................208
DTC Logic .............................................................208
Diagnosis Procedure .............................................208
U1010 CONTROL UNIT (CAN) ........................209
Description ............................................................209
DTC Logic .............................................................209
Diagnosis Procedure .............................................209
P0703 STOP LAMP SWITCH ..........................210
Description ............................................................210
DTC Logic .............................................................210
Diagnosis Procedure .............................................210
Component Inspection (Stop Lamp Switch) ..........211
P0705 PARK/NEUTRAL POSITION SWITCH ..213
Description ............................................................213
DTC Logic .............................................................213
Diagnosis Procedure .............................................213
Component Inspection (Park/Neutral Position
Switch) ..................................................................
214
P0710 CVT FLUID TEMPERATURE SENSOR
..
216
Description ............................................................216
DTC Logic .............................................................216
Diagnosis Procedure .............................................216
Component Inspection (CVT Fluid Temperature
Sensor) ..................................................................
217
P0715 INPUT SPEED SENSOR (PRI SPEED
SENSOR) ..........................................................
218
Description ............................................................218
DTC Logic .............................................................218
Diagnosis Procedure .............................................218
P0720 VEHICLE SPEED SENSOR CVT (SEC-
ONDARY SPEED SENSOR) ...........................
222
Description .............................................................222
DTC Logic ..............................................................222
Diagnosis Procedure .............................................222
P0725 ENGINE SPEED SIGNAL ....................226
Description .............................................................226
DTC Logic ..............................................................226
Diagnosis Procedure .............................................226
P0730 BELT DAMAGE ...................................228
Description .............................................................228
DTC Logic ..............................................................228
Diagnosis Procedure .............................................228
P0740 TORQUE CONVERTER CLUTCH SO-
LENOID VALVE ..............................................
230
Description .............................................................230
DTC Logic ..............................................................230
Diagnosis Procedure .............................................230
Component Inspection (Torque Converter Clutch
Solenoid Valve) .....................................................
231
P0744 A/T TCC S/V FUNCTION (LOCK -UP) .232
Description .............................................................232
DTC Logic ..............................................................232
Diagnosis Procedure .............................................232
Component Inspection (Torque Converter Clutch
Solenoid Valve) .....................................................
233
Component Inspection (Lock-up Select Solenoid
Valve) ....................................................................
233
P0745 LINE PRESSURE SOLENOID VALVE .234
Description .............................................................234
DTC Logic ..............................................................234
Diagnosis Procedure .............................................234
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] .......
235
P0746 PRESSURE CONTROL SOLENOID A
PERFORMANCE (LINE PRESSURE SOLE-
NOID VALVE) ..................................................
236
Description .............................................................236
DTC Logic ..............................................................236
Diagnosis Procedure .............................................236
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] .......
237
P0776 PRESSURE CONTROL SOLENOID B
PERFORMANCE (SEC PRESSURE SOLE-
NOID VALVE) ..................................................
238
Description .............................................................238
DTC Logic ..............................................................238
Diagnosis Procedure .............................................238
Component Inspection [Pressure Control Sole-
noid Valve A (Line Pressure Solenoid Valve)] .......
239
Component Inspection [Pressure Control Sole-
noid Valve B (Secondary Pressure Solenoid
Valve)] ...................................................................
239

TM-7
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P Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
297
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .................................
297
Precaution for Procedure without Cowl Top Cover ..298
Precaution for On Board Diagnosis (OBD) System
of CVT and Engine ................................................
298
Precaution for TCM and CVT Assembly Replace-
ment ......................................................................
298
Removal and Installation Procedure for CVT Unit
Connector ..............................................................
298
Precaution .............................................................299
Service Notice or Precaution .................................300
ATFTEMP COUNT Conversion Table ..................301
PREPARATION .........................................302
PREPARATION ................................................302
Special Service Tools ............................................302
Commercial Service Tools ....................................302
ON-VEHICLE MAINTENANCE ..................304
CVT FLUID .......................................................304
Inspection ..............................................................304
Changing ...............................................................305
STALL TEST ....................................................306
Inspection and Judgment ......................................306
LINE PRESSURE TEST ...................................308
Inspection and Judgment ......................................308
ROAD TEST .....................................................310
Description ............................................................310
Check before Engine Is Started ............................310
Check at Idle .........................................................311
Cruise Test ............................................................312
CVT POSITION .................................................314
Inspection and Adjustment ....................................314
ON-VEHICLE REPAIR ...............................315
TRANSMISSION CONTROL MODULE ...........315
Exploded View ......................................................315
Removal and Installation .......................................315
CONTROL DEVICE ..........................................317
Exploded View ......................................................317
Removal and Installation .......................................317
Inspection and Adjustment ....................................318
CONTROL CABLE ...........................................319
Exploded View ......................................................319
Removal and Installation .......................................319
Inspection and Adjustment ....................................320
OIL PAN ...........................................................321
Exploded View ......................................................321
Removal and Installation .......................................321
Inspection ..............................................................322
PRIMARY SPEED SENSOR ...........................323
Exploded View .......................................................323
Removal and Installation .......................................323
Inspection ..............................................................323
SECONDARY SPEED SENSOR ....................324
Exploded View .......................................................324
Removal and Installation .......................................324
Inspection ..............................................................324
DIFFERENTIAL SIDE OIL SEAL ....................325
Exploded View .......................................................325
Removal and Installation .......................................325
Inspection ..............................................................326
OIL PUMP FITTING BOLT ..............................327
Description .............................................................327
Exploded View .......................................................327
Removal and Installation .......................................327
Inspection ..............................................................327
AIR BREATHER HOSE ..................................328
Exploded View .......................................................328
Removal and Installation .......................................328
FLUID COOLER SYSTEM ..............................329
Exploded View .......................................................329
Removal and Installation .......................................329
Inspection ..............................................................331
REMOVAL AND INSTALLATION .............332
TRANSAXLE ASSEMBLY ..............................332
Exploded View .......................................................332
Removal and Installation .......................................332
Inspection ..............................................................334
DISASSEMBLY AND ASSEMBLY ............335
TORQUE CONVERTER AND CONVERTER
HOUSING OIL SEAL ......................................
335
Exploded View .......................................................335
Disassembly ..........................................................335
Assembly ...............................................................335
Inspection ..............................................................336
SERVICE DATA AND SPECIFICATIONS
(SDS) ..........................................................
337
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
337
General Specification ............................................337
Vehicle Speed When Shifting Gears .....................337
Stall Speed ............................................................337
Line Pressure ........................................................337
Solenoid Valves .....................................................338
CVT Fluid Temperature Sensor .............................338
Primary Speed Sensor ..........................................338
Secondary Speed Sensor ......................................338

TM-8
Step Motor .............................................................338Torque Converter ..................................................338

DIAGNOSIS AND REPAIR WORK FLOW
TM-11
< BASIC INSPECTION >[CVT: RE0F09B]
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DIAGNOSTIC WORK SHEET
Symptomso Vehicle does not move. (o Any positiono Particular position)
o No shift
o Lock-up malfunction
o Shift shock or slip (o N → Do N → Ro Lock-upo Any drive position)
o Noise or vibration
o No pattern select
o Others
()
Malfunction Indicator (MI)o Continuously lito Not lit
1o Read the item on cautions concerning fail-safe and understand the customer's complaint.TM-120
2o CVT fluid inspection, stall test and line pressure test
o CVT fluid inspection
TM-142
o Leak (Repair leak location.)
o Sta te
o Amount
o Stall test
TM-144
TM-146
o Torque converter one-way clutch
o Reverse brake
o Forward clutch
o Ste el be lto Engine
o Line pressure low
o Primary pulley
o Secondary pulley
o Line pressure inspection - Suspected part:
3o Perform self-diagnosis.
TM-37
Enter checks for detected items.
4o Perform road test.TM-148
4-1. Check before engine is started TM-148
4-2. Check at idleTM-149
4-3. Cruise testTM-150
o Check malfunction phenomena to repair or replace malfunctioning part after completing all road tests.TM-123
5o Drive vehicle to check that the malfunction phenomenon has been resolved.
6o Erase the results of the self-diagnosis from the TCM and the ECM.

TM-14
< FUNCTION DIAGNOSIS >[CVT: RE0F09B]
CVT SYSTEM
Component Parts Location
INFOID:0000000003848918
*1: Primary pressure sensor is included in CVT assembly.
*2: Control valve assembly is included in CVT assembly.
NOTE:
The following components are included in control valve assembly (7).
 PNP switch
 Primary speed sensor
 Step motor
 Secondary pressure solenoid valve
 Line pressure solenoid valve
 Torque converter clutch solenoid valve
 Shift control valve
 Secondary valve
 Manual valve
 Lock-up select solenoid valve
1. Sport mode switch 2. Shift position indicator 3. SPORT indicator lamp
4.
TCM5. Secondary speed sensor 6.
Primary pressure sensor
*1
7.
Control valve assembly*28. CVT unit connector 9. Accelerator pedal position sensor
A. Center console B. Combination meter C. Engine room LH
D. CVT assembly E. Accelerator pedal, upper
JPDIA0747ZZ