2003 NISSAN TEANA diagram

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
D
E
F
G
H
I
J
K
L
M
SECTION AT
A
B
AT

AUTOMATIC TRANSAXLE
INDEX FOR DTC ........................................................ 5
Alphabetical Index .................................................... 5
PRECAUTIONS .......................................................... 6
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 6
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 6
Precautions .............................................................. 7
Service Notice or Precautions .................................. 8
PREPARATION ........................................................... 9
Special Service Tools ............................................... 9
Commercial Service Tools ...................................... 12
A/T FLUID ................................................................. 14
Checking A/T Fluid ................................................. 14
Changing A/T Fluid ................................................ 15
A/T CONTROL SYSTEM .......................................... 16
Cross-Sectional View ............................................. 16
Shift Mechanism ..................................................... 17
TCM Function ......................................................... 26
CAN Communication .............................................. 27
Input/Output Signal of TCM .................................... 27
Line Pressure Control ............................................ 28
Shift Control ........................................................... 29
Lock-up Control ...................................................... 30
Engine Brake Control (Overrun Clutch Control) ..... 31
Control Valve .......................................................... 33
TROUBLE DIAGNOSIS ............................................ 34
DTC Inspection Priority Chart ................................ 34
Fail-safe ................................................................. 34
How to Perform Trouble Diagnoses for Quick and
Accurate Repair ..................................................... 36
A/T Electrical Parts Location .................................. 41
Circuit Diagram ...................................................... 42
Inspections Before Trouble Diagnosis .................... 43
Road Test ............................................................... 48
Check Before Engine Is Started ............................. 48
Check at Idle .......................................................... 48
Cruise Test — Part 1 .............................................. 50
Cruise Test — Part 2 .............................................. 51Cruise Test — Part 3 .............................................. 52
Vehicle Speed Which Gear Shifting Occurs ........... 54
Vehicle Speed at When Lock-up Occurs/Releases ... 54
Symptom Chart ....................................................... 55
TCM Terminals and Reference Value ..................... 64
CONSULT-II Function (A/T) .................................... 67
Diagnostic Procedure Without CONSULT-II ........... 76
VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR) .................................................................. 80
Description .............................................................. 80
CONSULT-II Reference Value ................................ 80
On Board Diagnosis Logic ...................................... 80
Possible Cause ....................................................... 80
DTC Confirmation Procedure ................................. 80
Wiring Diagram — AT — VSSA/T .......................... 82
Diagnostic Procedure ............................................. 83
VEHICLE SPEED SENSOR MTR ............................. 86
Description .............................................................. 86
CONSULT-II Reference Value ................................ 86
On Board Diagnosis Logic ...................................... 86
Possible Cause ....................................................... 86
DTC Confirmation Procedure ................................. 86
Wiring Diagram — AT — VSSMTR ........................ 87
Diagnostic Procedure ............................................. 88
SHIFT SOLENOID VALVE A .................................... 90
Description .............................................................. 90
CONSULT-II Reference Value ................................ 90
On Board Diagnosis Logic ...................................... 90
Possible Cause ....................................................... 90
DTC Confirmation Procedure ................................. 90
Wiring Diagram — AT — SSV/A ............................. 91
Diagnostic Procedure ............................................. 92
Component Inspection ............................................ 94
SHIFT SOLENOID VALVE B .................................... 95
Description .............................................................. 95
CONSULT-II Reference Value ................................ 95
On Board Diagnosis Logic ...................................... 95
Possible Cause ....................................................... 95
DTC Confirmation Procedure ................................. 95
Wiring Diagram — AT — SSV/B ............................. 96

AT-2 Diagnostic Procedure ............................................. 97
Component Inspection ............................................ 99
OVERRUN CLUTCH SOLENOID VALVE ...............100
Description ............................................................100
CONSULT-II Reference Value ..............................100
On Board Diagnosis Logic ....................................100
Possible Cause .....................................................100
DTC Confirmation Procedure ...............................100
Wiring Diagram — AT — OVRCSV ......................101
Diagnostic Procedure ...........................................102
Component Inspection ..........................................104
TORQUE CONVERTER CLUTCH SOLENOID
VALVE .....................................................................105
Description ............................................................105
CONSULT-II Reference Value ..............................105
On Board Diagnosis Logic ....................................105
Possible Cause .....................................................105
DTC Confirmation Procedure ...............................105
Wiring Diagram — AT — TCV ..............................106
Diagnostic Procedure ...........................................107
Component Inspection ..........................................109
BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE) ........110
Description ............................................................110
CONSULT-II Reference Value ..............................110
On Board Diagnosis Logic ....................................110
Possible Cause .....................................................110
DTC Confirmation Procedure ...............................110
Wiring Diagram — AT — BA/FTS ..........................111
Diagnostic Procedure ...........................................112
Component Inspection ..........................................115
ENGINE SPEED SIGNAL .......................................116
Description ............................................................116
CONSULT-II Reference Value ..............................116
On Board Diagnosis Logic ....................................116
Possible Cause .....................................................116
DTC Confirmation Procedure ...............................116
Wiring Diagram — AT — ENGSS .........................117
Diagnostic Procedure ...........................................118
TURBINE REVOLUTION SENSOR ........................120
Description ............................................................120
CONSULT-II Reference Value ..............................120
On Board Diagnosis Logic ....................................120
Possible Cause .....................................................120
DTC Confirmation Procedure ...............................120
Wiring Diagram — AT — PT/SEN ........................121
Diagnostic Procedure ...........................................122
LINE PRESSURE SOLENOID VALVE ...................126
Description ............................................................126
CONSULT-II Reference Valve ..............................126
On Board Diagnosis Logic ....................................126
Possible Cause .....................................................126
DTC Confirmation Procedure ...............................126
Wiring Diagram — AT — LPSV ............................127
Diagnostic Procedure ...........................................129
Component Inspection ..........................................132
CAN COMMUNICATION LINE ................................133
Description ............................................................133
On Board Diagnosis Logic ....................................133Possible Cause .....................................................133
DTC Confirmation Procedure ................................133
Wiring Diagram — AT — CAN ..............................134
Diagnostic Procedure ............................................135
A/T 1ST GEAR FUNCTION .....................................136
Description ............................................................136
On Board Diagnosis Logic ....................................136
Possible Cause .....................................................136
DTC Confirmation Procedure ................................137
Diagnostic Procedure ............................................138
A/T 2ND GEAR FUNCTION ....................................140
Description ............................................................140
On Board Diagnosis Logic ....................................140
Possible Cause .....................................................140
DTC Confirmation Procedure ................................141
Diagnostic Procedure ............................................142
A/T 3RD GEAR FUNCTION ....................................143
Description ............................................................143
On Board Diagnosis Logic ....................................143
Possible Cause .....................................................143
DTC Confirmation Procedure ................................144
Diagnostic Procedure ............................................145
A/T 4TH GEAR FUNCTION ....................................146
Description ............................................................146
CONSULT-II Reference Value ...............................146
On Board Diagnosis Logic ....................................146
Possible Cause .....................................................146
DTC Confirmation Procedure ................................147
Diagnostic Procedure ............................................147
A/T TCC S/V FUNCTION (LOCK-UP) .....................151
Description ............................................................151
CONSULT-II Reference Value ...............................151
On Board Diagnosis Logic ....................................151
Possible Cause .....................................................151
DTC Confirmation Procedure ................................152
Diagnostic Procedure ............................................152
CONTROL UNIT (RAM) ..........................................156
Description ............................................................156
On Board Diagnosis Logic ....................................156
Possible Cause .....................................................156
DTC Confirmation Procedure ................................156
Diagnostic Procedure ............................................156
CONTROL UNIT (ROM) ..........................................157
Description ............................................................157
On Board Diagnosis Logic ....................................157
Possible Cause .....................................................157
DTC Confirmation Procedure ................................157
Diagnostic Procedure ............................................157
MAIN POWER SUPPLY AND GROUND CIRCUIT .158
Wiring Diagram — AT — MAIN .............................158
Diagnostic Procedure ............................................159
PNP, 3RD POSITION SWITCH AND CLOSED
THROTTLE, WIDE OPEN THROTTLE POSITION
SIGNAL ...................................................................161
CONSULT-II Reference Value ...............................161
TCM Terminals and Reference Value ...................161
Diagnostic Procedure ............................................162
Component Inspection ..........................................166
BRAKE SIGNAL CIRCUIT ......................................167

AT-3
D
E
F
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MA
B
AT
CONSULT-II Reference Value .............................. 167
Diagnostic Procedure ........................................... 167
TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 168
Wiring Diagram — AT — NONDTC ...................... 168
A/T CHECK Indicator Lamp Does Not Come On . 173
Engine Cannot Be Started in “P” and “N” Position . 175
In “P” Position, Vehicle Moves Forward or Backward
When Pushed ....................................................... 176
In “N” Position, Vehicle Moves ............................. 176
Large Shock. “N” → “R” Position .......................... 177
Vehicle Does Not Creep Backward in “R” Position . 179
Vehicle Does Not Creep Forward in “D”, “3”, “2” or
“1” Position ........................................................... 181
Vehicle Cannot Be Started From D
1 ..................... 182
A/T Does Not Shift: D
1 → D2 or Does Not Kickdown:
D
4 → D2 ............................................................... 184
A/T Does Not Shift: D
2 → D3 ............................... 186
A/T Does Not Shift: D
3 → D4 ............................... 188
A/T Does Not Perform Lock-up ............................ 191
A/T Does Not Hold Lock-up Condition ................. 193
Lock-up Is Not Released ...................................... 195
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4 → D3 ) ....................................................... 195
A/T Does Not Shift: D
4 → 33 , When A/T Selector
Lever “D” → “3” .................................................... 197
A/T Does Not Shift: 3
3 → 22 , When Selector Lever
“3” → “2” Position ................................................. 198
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position ................................................. 200
Vehicle Does Not Decelerate By Engine Brake (D
4
→ 3
3 ) ................................................................... 203
Vehicle Does Not Decelerate By Engine Brake (3
3
→ 2
2 ) ................................................................... 205
Vehicle Does Not Decelerate By Engine Brake (2
2
→ 1
1 ) ................................................................... 208
TCM Self-diagnosis Does Not Activate ................ 210
TRANSMISSION CONTROL MODULE ..................211
Removal and Installation ....................................... 211
SHIFT CONTROL SYSTEM ................................... 213
Control Device Removal and Installation ............. 213
Adjustment of A/T Position ................................... 215
Checking of A/T Position ...................................... 215
A/T SHIFT LOCK SYSTEM .................................... 216
Description ........................................................... 216
Shift Lock System Electrical Parts Location ......... 216
Wiring Diagram — AT — SHIFT ........................... 217
Shift Lock Control Unit Reference Values ............ 221
Component Inspection ......................................... 222
ON-VEHICLE SERVICE ......................................... 225
Control Valve Assembly and Accumulators .......... 225
Park/Neutral Position (PNP) Switch ..................... 230
Differential Side Oil Seal Replacement ................ 231
Revolution Sensor Replacement .......................... 233
Turbine Revolution Sensor (Power Train Revolution
Sensor) Replacement .......................................... 234
AIR BREATHER HOSE .......................................... 236
Removal and Installation [Air Breather Hose (Oil
Catch Tank to Air Duct)] ....................................... 236
Removal and Installation [Oil Catch Tank and Air Breather Hose (A/T assembly to Oil catch tank)] . 239
TRANSAXLE ASSEMBLY ......................................241
Removal and Installation ......................................241
OVERHAUL ............................................................246
Components .........................................................246
Oil Channel ...........................................................252
Locations of Adjusting Shims, Needle Bearings and
Thrust Washers ....................................................253
Locations of Snap Rings .......................................254
DISASSEMBLY .......................................................255
Disassembly .........................................................255
REPAIR FOR COMPONENT PARTS .....................272
Manual Shaft ........................................................272
Oil Pump ...............................................................275
Control Valve Assembly ........................................280
Control Valve Upper Body ....................................289
Control Valve Lower Body ....................................293
Reverse Clutch .....................................................296
High Clutch ...........................................................301
Forward and Overrun Clutches ............................307
Low & Reverse Brake ...........................................315
Rear Internal Gear, Forward Clutch Hub and Over-
run Clutch Hub ......................................................319
Output Shaft, Idler Gear, Reduction Pinion Gear and
Bearing Retainer ...................................................323
Band Servo Piston Assembly ...............................329
Final Drive ............................................................335
ASSEMBLY .............................................................339
Assembly (1) .........................................................339
Adjustment (1) ......................................................340
Assembly (2) .........................................................345
Adjustment (2) ......................................................352
Assembly (3) .........................................................355
SERVICE DATA AND SPECIFICATIONS (SDS) ....362
General Specifications ..........................................362
Vehicle Speed Which Gear Shifting Occurs .........362
Vehicle Speed at When Lock-up Occurs/Releases .362
Stall Revolution .....................................................363
Line Pressure .......................................................363
Adjusting shims, Needle Bearings, Thrust Washers
and Snap Rings ....................................................363
Control Valves ......................................................364
Accumulator ..........................................................365
Clutch and Brakes ................................................366
Final Drive ............................................................367
Planetary Carrier and Oil Pump ............................367
Input Shaft ............................................................367
Reduction Pinion Gear .........................................367
Band Servo ...........................................................368
Output Shaft .........................................................368
Bearing Retainer ...................................................368
Total End Play .......................................................368
Reverse Clutch End Play ......................................368
Removal and Installation ......................................368
Shift Solenoid Valves ............................................368
Solenoid Valves ....................................................368
A/T Fluid Temperature Sensor ..............................368
Revolution Sensor ................................................369

AT-26
A/T CONTROL SYSTEM

TCM FunctionBCS000ZP
The function of the TCM is to:

Receive input signals sent from various switches and sensors.

Determine required line pressure, shifting point, lock-up operation, and engine brake operation.

Send required output signals to the respective solenoids.
CONTROL SYSTEM OUTLINE
The automatic transmission senses vehicle operating conditions through various sensors or signals. It always
controls the optimum shift position and reduces shifting and lock-up shocks.
CONTROL SYSTEM DIAGRAM
SWITCHES & SENSORS

TCM

ACTUATORS
PNP switch
Accelerator pedal position signal
Closed throttle position signal
Wide open throttle position signal
Engine speed signal
A/T fluid temperature sensor
Revolution sensor
Turbine revolution sensor (power
train revolution sensor)
Vehicle speed signal
3rd position switch signal
Stop lamp switch signalShift control
Line pressure control
Lock-up control
Overrun clutch control
Timing control
Fail-safe control
Self-diagnosis
CONSULT-II communication line
control
CAN systemShift solenoid valve A
Shift solenoid valve B
Overrun clutch solenoid valve
Torque converter clutch solenoid
valve
Line pressure solenoid valve
A/T CHECK indicator lamp
SCIA7869E

AT-30
A/T CONTROL SYSTEM

CONTROL OF SHIFT VALVES A AND B
Pilot pressure generated by the operation of shift solenoid valves A and B is applied to the end face of shift
valves A and B.
The figure above shows the operation of shift valve B. When the shift solenoid valve is “ON”, pilot pressure
applied to the end face of the shift valve overcomes spring force, moving the valve upward.
Lock-up ControlBCS000ZU
The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to
increase power transmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent from
the TCM. The signal is converted to an oil pressure signal which controls the torque converter clutch piston.
CONDITIONS FOR LOCK-UP OPERATION
When vehicle is driven in 3rd and 4th gear position, vehicle speed and throttle opening are detected. If the
detected values fall within the lock-up zone memorized in the TCM, lock-up is performed.
TORQUE CONVERTER CLUTCH SOLENOID VALVE CONTROL
Lock-up Control System Diagram
SAT009J
Selector lever “D” position “3” position
Gear position D
4 , D333
Vehicle speed sensor More than set value
accelerator pedal position sensor Less than set opening
Closed throttle position signal OFF
A/T fluid temperature sensor More than 20°C (68°F)
SCIA5623E

AT-42
TROUBLE DIAGNOSIS

Circuit DiagramBCS00101
TCWM0513E

AT-82
VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)

Wiring Diagram — AT — VSSA/TBCS0010K
TCWM0514E

VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-83
D
E
F
G
H
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MA
B
AT

Data are reference value and are measured between each terminal and ground.
Diagnostic ProcedureBCS0010L
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “VHCL/S SE-A/T” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK REVOLUTION SENSOR
With CONSULT-II
1. Start engine.
2. Check power supply to revolution sensor by voltage between TCM connector terminals. Refer to AT- 1 5 8 ,
"Wiring Diagram — AT — MAIN" .
3. If OK check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
Terminal Wire color Item ConditionJudgement standard
(Approx.)
29 W/R Revolution sensorWhen moving at 20 km/h
(12 MPH)450 Hz
42 B Sensor ground Always 0 V
Item name Condition Display value
VHCL/S SE-A/T During drivingApproximately matches the speedometer
reading.
SCIA4730E
Item Connector TerminalJudgement standard
(Approx.)
TCM con-
nectorF10510 - 42
Battery voltage
19 - 42
Name Condition
Revolution sensorWhen moving at 20 km/h (12 MPH), use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the diagnosis data link cable to the data link
connector.
Item Connector Terminal Data (Approx.)
TCM connector F105 29 450 Hz
SCIA4939E