2003 NISSAN TEANA torque

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

PRECAUTIONS
AT-7
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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-8
PRECAUTIONS

Service Notice or PrecautionsBCS000ZH
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:

External leaks in the hub weld area.

Converter hub is scored or damaged.

Converter pilot is broken, damaged or fits poorly into crankshaft.

Steel particles are found after flushing the cooler and cooler lines.

Pump is damaged or steel particles are found in the converter.

Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)

Converter is contaminated with engine coolant containing antifreeze.

Internal malfunction of stator roller clutch.

Heavy clutch debris due to overheating (blue converter).

Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:

The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.

The threads in one or more of the converter bolt holes are damaged.

Transaxle malfunction did not display evidence of damaged or worn internal parts, steel particles or clutch
plate lining material in unit and inside the fluid filter.

Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.

PREPARATION
AT-11
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ST3306S001
Differential side bearing
puller set
1. ST33051001
Puller
2. ST33061000
AdapterRemoving differential side bearing inner race
a: 38 mm (1.50 in) dia.
b: 28.5 mm (1.122 in) dia.
c: 130 mm (5.12 in)
d: 135 mm (5.31 in)
e: 100 mm (3.94 in)
ST3127S000
Preload gauge
1. GG9103000
Torque wrench
2. HT62900000
Socket adapter
3. HT62900000
Socket adapter

Checking final drive assembly turning torque

Checking reduction pinion gear turning torque
ST35271000
DriftInstalling idler gear
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
KV38107700
Preload adapterSelecting differential side bearing adjusting shim
KV38105210
Preload adapter

Selecting differential side bearing adjusting shim

Checking final drive assembly turning torque Tool number
Tool nameDescription
AMT153
NT124
NT115
NT087
NT075

AT-16
A/T CONTROL SYSTEM

A/T CONTROL SYSTEMPFP:31036
Cross-Sectional View BCS000ZN
1. Band servo piston 2. Reverse clutch drum 3. Converter housing
4. Oil pump 5. Brake band 6. Reverse clutch
7. High clutch 8. Front planetary gear 9. Rear planetary gear
10. Forward clutch 11. Overrun clutch 12. Output gear
13. Side cover 14. Idler gear 15. Transaxle case
16. Low & reverse brake 17. Forward one-way clutch 18. Low one-way clutch
19. Reduction pinion gear 20. Final gear 21. Differential case
22. Input shaft 23. Torque converter
SCIA7734E

A/T CONTROL SYSTEM
AT-17
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Shift MechanismBCS000ZO
CONSTRUCTION
FUNCTION OF CLUTCH AND BRAKE
1. Torque converter 2. Oil pump 3. Input shaft
4. Brake band 5. Reverse clutch 6. High clutch
7. Front sun gear 8. Front pinion gear 9. Front internal gear
10. Front planetary carrier 11. Rear sun gear 12. Rear pinion gear
13. Rear internal gear 14. Rear planetary carrier 15. Forward clutch
16. Forward one-way clutch 17. Overrun clutch 18. Low one-way clutch
19. Low & reverse brake 20. Parking pawl 21. Parking gear
22. Output shaft 23. Idler gear 24. Output gear
SAT998I
Clutch and brake components Abbr. Function
5Reverse clutch R/C To transmit input power to front sun gear 7 .
6High clutch H/C To transmit input power to front planetary carrier 10 .
15Forward clutch F/C To connect front planetary carrier 10 with forward one-way clutch 16 .
17Overrun clutch O/C To connect front planetary carrier 10 with rear internal gear 13 .
4Brake band B/B To lock front sun gear 7 .
16Forward one-way clutch F/O.CWhen forward clutch 15 is engaged, to stop rear internal gear 13 from rotating
in opposite direction against engine revolution.
18Low one-way clutch L/O.CTo stop front planetary carrier 10 from rotating in opposite direction against
engine revolution.
19Low & reverse brake L & R/B To lock front planetary carrier 10 .

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

A/T CONTROL SYSTEM
AT-27
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CAN CommunicationBCS000ZQ
SYSTEM DESCRIPTION
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer to LAN-49,
"CAN System Specification Chart" .
Input/Output Signal of TCMBCS000ZR
*1: Spare for vehicle speed sensor·A/T (revolution sensor)
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnostics are not started, it is judged that there is some kind of error.
*5: Input by CAN communications.
*6: Output by CAN communications.Control itemLine
pressure
controlVehicle
speed
controlShift
controlLock-up
controlEngine
brake
controlFail-safe
functionSelf-diag-
nostics
function
InputAccelerator pedal position signal
(*5)XXXXX(*3) XX
Vehicle speed sensor A/T
(Revolution sensor)XXXXX(*3) XX
Vehicle speed sensor MTR
(*1)XXXX X
Closed throttle position signal
(*5)(*2) X(*2) XXX(*4) X
Wide open throttle position signal
(*5)(*2) X (*2) X (*4) X
Turbine revolution sensor (Power
train revolution sensor)XX X XX
Engine speed signal X X X X
PNP switch XXXXX(*3) X(*4) X
Stop lamp switch signal
(*5)XX (*4) X
A/T fluid temperature sensors X X X X X X
3rd position switch signal
(*5)XXXX (*4) X
TCM power supply voltage signal X X X X
Out-
putShift solenoid valve A/B X (*3) X X
Line pressure solenoid X (*3) X X
Torque converter clutch solenoid
valveX(*3) XX
Overrun clutch solenoid valve X X (*3) X X
A/T CHECK indicator lamp
(*6)X