2003 NISSAN TEANA can

ACC-2
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BBS005AM
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

AT-1
AUTOMATIC TRANSAXLE
C TRANSMISSION/TRANSAXLE
CONTENTS
D
E
F
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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
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MA
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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

INDEX FOR DTC
AT-5
D
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AT

INDEX FOR DTCPFP:00024
Alphabetical Index BCS000ZD
NOTE:
If DTC “CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis for
“CAN COMMUNICATION LINE”. Refer to AT- 1 3 3
.
X: Applicable, —: Not applicable
Items (CONSULT-II screen terms)TCM self-diagnosis
Reference
page A/T CHECK
indicator lamp“A/T” with
CONSULT-II
A/T 1ST GR FNCTN — XAT- 1 3 6
A/T 2ND GR FNCTN — XAT- 1 4 0
A/T 3RD GR FNCTN — XAT- 1 4 3
A/T 4TH GR FNCTN — XAT- 1 4 6
A/T TCC S/V FNCTN — XAT- 1 5 1
BATT/FLUID TEMP SEN X XAT- 11 0
CAN COMM CIRCUIT X XAT- 1 3 3
CONTROL UNIT (RAM) — XAT- 1 5 6
CONTROL UNIT (ROM) — XAT- 1 5 7
ENGINE SPEED SIG X XAT- 11 6
LINE PRESSURE S/V X XAT- 1 2 6
OVERRUN CLUTCH S/V X XAT- 1 0 0
SHIFT SOLENOID/V A X XAT- 9 0
SHIFT SOLENOID/V B X XAT- 9 5
T/C CLUTCH SOL/V X XAT- 1 0 5
TURBINE SENSOR X XAT- 1 2 0
VHCL SPEED SEN-A/T X XAT- 8 0
VHCL SPEED SEN-MTR X XAT- 8 6

AT-6
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BCS000ZE
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectBCS000ZF
NOTE:

This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT
SYSTEM).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-II.

PRECAUTIONS
AT-7
D
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AT

PrecautionsBCS000ZG

Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the TCM.
Because battery voltage is applied to TCM even if ignition
switch is turned off.

When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors.

Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. (See page AT- 6 4 , "
TCM Terminals and Reference
Val ue".)

After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) Confirmation Procedure”.
The DTC should not be displayed in the “DTC Confirmation
Procedure” if the repair is completed.

Before proceeding with disassembly, thoroughly clean the out-
side of the transaxle. It is important to prevent the internal parts
from becoming contaminated by dirt or other foreign matter.

Disassembly should be done in a clean work area.

Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transaxle.

Place disassembled parts in order for easier and proper assembly.

All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.

Gaskets, seals and O-rings should be replaced any time the transaxle is disassembled.

It is very important to perform functional tests whenever they are indicated.

The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

After overhaul, refill the transaxle with new ATF.

When the A/T drain plug is removed, only some of the ATF is drained. Old ATF will remain in torque con-
verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to “Changing A/T Fluid”, AT- 1 4 , "
Checking A/T Fluid" .
SEF289H
AAT470A
MEF040DA

AT-14
A/T FLUID

A/T FLUIDPFP:KLE40
Checking A/T FluidBCS000ZL
1. Warm up engine.
2. Check for A/T fluid leakage.
3. Before driving, A/T fluid level can be checked A/T at fluid tem-
peratures of 30 to 50°C (86 to 122°F) using “COLD” range on A/
T fluid level gauge.
a. Park vehicle on level surface and set parking brake.
b. Start engine and move selector lever through each gear posi-
tion. Leave selector lever in “P” position.
c. Check A/T fluid level with engine idling.
d. Remove A/T fluid level gauge and wipe clean with lint-free
paper.
CAUTION:
When wiping away the A/T fluid level gauge, always use
lint-free paper, not a cloth one.
e. Re-insert A/T fluid level gauge into A/T fluid charging pipe as far
as it will go.
CAUTION:
Firmly fix the A/T fluid level gauge to the A/T fluid charging
pipe using a stopper attached.
f. Remove A/T fluid level gauge and note reading. If reading is at
low side of range, add ATF to the A/T fluid charging pipe.
CAUTION:
Do not overfill.
4. Drive vehicle for approximately 5 minutes in urban areas.
5. Recheck A/T fluid level at A/T fluid temperatures of 50 to 80°C (122 to 176°F) using “HOT” range on A/T
fluid level gauge.
CAUTION:

When wiping away the A/T fluid level gauge, always use lint-free paper, not cloth one.

Firmly fix the A/T fluid level gauge to the A/T fluid charging pipe using a stopper attached.
SMA146B
SCIA3451E
SMA051D