Connector NISSAN TEANA 2003 Service Manual

WATER OUTLET AND WATER PIPING
CO-53
[VQ]
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7. Remove engine coolant temperature sensor as necessary.
CAUTION:
Be careful not to damage engine coolant temperature sensor.
8. Remove water outlet, heater pipe, water bypass pipe and water connector.
INSTALLATION
Note the following, and install in the reverse order of removal.

Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.

When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.
INSPECTION AFTER INSTALLATION

Check for leaks of engine coolant using radiator cap tester adapter [SST: EG17650301] and radiator cap
tester (commercial service tool). Refer to CO-34, "
LEAK CHECK" .

Start and warm up engine. Visually check if there is no leaks of engine coolant.

CVT-1
CVT
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION CVT
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B
CVT

CVT
INDEX FOR DTC ........................................................ 6
Alphabetical Index .................................................... 6
DTC No. Index ......................................................... 7
PRECAUTIONS .......................................................... 8
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 8
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 8
OPERATION PROCEDURE ................................. 8
Precautions for TCM and CVT Assembly Replace-
ment ......................................................................... 9
EEPROM ERASING PATTERNS .......................... 9
METHOD FOR ERASING THE EEPROM IN THE
TCM ...................................................................... 9
METHOD FOR WRITING DATA FROM THE
ROM ASSEMBLY IN THE TRANSAXLE .............. 9
CHECK METHOD ................................................. 9
Removal and Installation Procedure for CVT Unit
Connector ............................................................... 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
Precautions ............................................................. 11
PREPARATION ......................................................... 12
Special Service Tools ............................................. 12
Commercial Service Tools ...................................... 12
CVT FLUID ............................................................... 13
Checking CVT Fluid ............................................... 13
Changing CVT Fluid ............................................... 14
CVT SYSTEM ........................................................... 15
Cross-Sectional View - RE0F09A .......................... 15
Control System ....................................................... 16
Hydraulic Control System ....................................... 17
TCM Function ......................................................... 18
CONTROL SYSTEM OUTLINE .......................... 18
CONTROL SYSTEM DIAGRAM ......................... 18
CAN Communication .............................................. 19
SYSTEM DESCRIPTION .................................... 19
Input/Output Signal of TCM .................................... 19Line Pressure and Secondary Pressure Control .... 20
NORMAL CONTROL .......................................... 20
FEEDBACK CONTROL ...................................... 20
Shift Control ............................................................ 20
“D” POSITION ..................................................... 21
“M” POSITION ..................................................... 21
DOWNHILL ENGINE BRAKE CONTROL (AUTO
ENGINE BRAKE CONTROL) .............................. 21
ACCELERATION CONTROL .............................. 21
Lock-up and Select Control .................................... 21
TORQUE CONVERTER CLUTCH AND SELECT
CONTROL VALVE CONTROL ............................ 22
Control Valve .......................................................... 23
FUNCTION OF CONTROL VALVE ..................... 23
TROUBLE DIAGNOSIS ............................................ 24
DTC Inspection Priority Chart ................................. 24
Fail-safe .................................................................. 24
FAIL-SAFE FUNCTION ....................................... 24
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 25
INTRODUCTION ................................................. 25
WORK FLOW ...................................................... 26
DIAGNOSTIC WORKSHEET .............................. 27
CVT Electrical Parts Location ................................. 30
Circuit Diagram ....................................................... 31
Inspections Before Trouble Diagnosis .................... 32
CVT FLUID CHECK ............................................ 32
STALL TEST ........................................................ 32
LINE PRESSURE TEST ..................................... 33
Road Test ............................................................... 35
DESCRIPTION .................................................... 35
CONSULT-II OPERATION PROCEDURE ........... 35
Check Before Engine Is Started ............................. 37
Check at Idle ........................................................... 37
Cruise Test .............................................................. 38
Vehicle Speed at Which Gear Shifting Occurs ....... 40
TCM Input/Output Signal Reference Values ........... 40
TCM TERMINAL CONNECTOR LAYOUT .......... 40

CVT-4 On Board Diagnosis Logic ....................................143
Possible Cause .....................................................143
DTC Confirmation Procedure ...............................143
WITH CONSULT-II ............................................143
Diagnostic Procedure ...........................................144
DTC P1726 ELECTRIC THROTTLE CONTROL
SYSTEM ..................................................................145
Description ............................................................145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ...............................145
WITH CONSULT-II ............................................145
Diagnostic Procedure ...........................................146
DTC P1740 LOCK-UP SELECT SOLENOID VALVE
CIRCUIT ..................................................................147
Description ............................................................147
CONSULT-II Reference Value ..............................147
On Board Diagnosis Logic ....................................147
Possible Cause .....................................................147
DTC Confirmation Procedure ...............................147
WITH CONSULT-II ............................................147
Wiring Diagram — CVT — L/USSV ......................148
Diagnostic Procedure ...........................................149
Component Inspection ..........................................151
LOCK-UP SELECT SOLENOID VALVE ............151
DTC P1745 LINE PRESSURE CONTROL .............152
Description ............................................................152
On Board Diagnosis Logic ....................................152
Possible Cause .....................................................152
DTC Confirmation Procedure ...............................152
WITH CONSULT-II ............................................152
Diagnostic Procedure ...........................................152
DTC P1777 STEP MOTOR - CIRCUIT ...................153
Description ............................................................153
CONSULT-II Reference Value ..............................153
On Board Diagnosis Logic ....................................153
Possible Cause .....................................................153
DTC Confirmation Procedure ...............................153
WITH CONSULT-II ............................................153
Wiring Diagram — CVT — STM ...........................154
Diagnostic Procedure ...........................................155
Component Inspection ..........................................156
STEP MOTOR ...................................................156
DTC P1778 STEP MOTOR - FUNCTION ...............157
Description ............................................................157
CONSULT-II Reference Value ..............................157
On Board Diagnosis Logic ....................................157
Possible Cause .....................................................157
DTC Confirmation Procedure ...............................157
WITH CONSULT-II ............................................157
Diagnostic Procedure ...........................................158
CVT INDICATOR CIRCUIT .....................................159
Description ............................................................159
CONSULT-II Reference Value ..............................159
Diagnostic Procedure ...........................................159
CVT INDICATOR SYMPTOM CHART ...............159
TROUBLE DIAGNOSIS FOR SYMPTOMS ............160Wiring Diagram — CVT — NONDTC ...................160
CVT Indicator Lamp Does Not Come On ..............164
SYMPTOM: ........................................................164
DIAGNOSTIC PROCEDURE .............................164
Engine Cannot Be Started in “P” or “N” Position ...165
SYMPTOM: ........................................................165
DIAGNOSTIC PROCEDURE .............................165
In “P” Position, Vehicle Moves Forward or Backward
When Pushed .......................................................166
SYMPTOM: ........................................................166
DIAGNOSTIC PROCEDURE .............................166
In “N” Position, Vehicle Moves ..............................166
SYMPTOM: ........................................................166
DIAGNOSTIC PROCEDURE .............................166
Large Shock “N” → “R” Position ...........................167
SYMPTOM: ........................................................167
DIAGNOSTIC PROCEDURE .............................167
Vehicle Does Not Creep Backward in “R” Position .168
SYMPTOM: ........................................................168
DIAGNOSTIC PROCEDURE .............................168
Vehicle Does Not Creep Forward in “D” Position ..169
SYMPTOM: ........................................................169
DIAGNOSTIC PROCEDURE .............................169
CVT Does Not Shift ...............................................170
SYMPTOM: ........................................................170
DIAGNOSTIC PROCEDURE .............................170
Cannot Be Changed to Manual Mode ...................171
SYMPTOM: ........................................................171
DIAGNOSTIC PROCEDURE .............................171
CVT Does Not Shift in Manual Mode ....................171
SYMPTOM: ........................................................171
DIAGNOSTIC PROCEDURE .............................171
Vehicle Does Not Decelerate by Engine Brake .....172
SYMPTOM: ........................................................172
DIAGNOSTIC PROCEDURE .............................172
TRANSMISSION CONTROL MODULE ..................174
Removal and Installation .......................................174
COMPONENTS .................................................174
REMOVAL ..........................................................174
INSTALLATION ..................................................175
SHIFT CONTROL SYSTEM ....................................176
Removal and Installation .......................................176
CONTROL DEVICE COMPONENTS ................176
CONTROL CABLE COMPONENTS ..................177
REMOVAL ..........................................................177
INSTALLATION ..................................................178
Adjustment of CVT Position ..................................178
Checking of CVT Position .....................................179
CVT SHIFT LOCK SYSTEM ...................................180
Description ............................................................180
Shift Lock System Electrical Parts Location ..........180
Wiring Diagram — CVT — SHIFT ........................181
Shift Lock Control Unit Reference Values .............183
SHIFT LOCK HARNESS CONNECTOR TERMI-
NALS LAYOUT ..................................................183
SHIFT LOCK CONTROL UNIT INSPECTION

CVT-8
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BCS001NA
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 DisconnectBCS001NB
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

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 NVIS/IVIS, an electrically controlled steering lock
mechanism 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
CVT-9
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CVT

Precautions for TCM and CVT Assembly ReplacementBCS001FR
When replacing CVT assembly or TCM, refer to the pattern table below and erase the EEPROM in the TCM if
necessary.
CAUTION:

Check if new data (Unit ID) are entered correctly after replacing CVT assembly and erasing data in
TCM. (Connect CONSULT-II, and then turn ignition switch OFF.)

“TCM POWER SUPPLY [P1701]” may be indicated soon after replacing TCM or transaxle assembly
(after erasing the memory). Restart the self-diagnosis after erasing the self-diagnosis result.
Check that no error is detected.
EEPROM ERASING PATTERNS
METHOD FOR ERASING THE EEPROM IN THE TCM
1. Connect CONSULT-II to data link connector. Refer to CVT-45, "CONSULT-II SETTING PROCEDURE" .
2. Turn ignition switch ON. Confirm that CONSULT-II is turned ON.
3. Move selector lever to “R” position.
4. Touch “START (NISSAN BASED VHCL)” on CONSULT-II.
5. Select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-II.
6. Press the brake pedal and turn the brake switch ON.
7. Press the accelerator pedal (0.5/8 - 4/8 throttle) not to exceed the half, and hold it in the half or less open
position. (This will set the closed throttle position signal to OFF and the wide open throttle position signal
to OFF.)
8. Touch “ERASE” on CONSULT-II, and then touch “YES”.
9. Wait 3 seconds and then release the accelerator pedal.
10. Turn ignition switch OFF.
METHOD FOR WRITING DATA FROM THE ROM ASSEMBLY IN THE TRANSAXLE
In the following procedure, the TCM reads data from the ROM assembly and writes it to the EEPROM in the
TCM.
1. Erase the EEPROM in the TCM.
2. Move selector lever to “P” position.
3. Turn ignition switch ON.
CHECK METHOD

Standard: About 2 seconds after the ignition switch ON, the CVT indicator lamp lights up for 2 seconds.

Non-standard: Even after the ignition switch ON, the CVT indicator lamp does not light up after 2 seconds
or illuminates immediately.
CAUTION:
Perform in the “P” or “N” position.
Action for Non-standard

Replace the CVT assembly.

Replace the TCM.
CVT assembly TCM Erasing EEPROM in TCM Remarks
Replaced Replaced Not requiredNot required because the EEPROM in the TCM is in
the default state. (CVT assembly must be replaced
first.)
Not replaced Replaced Not requiredNot required because the EEPROM in the TCM is in
the default state.
Replaced Not replaced RequiredRequired because data has been written in the
EEPROM in the TCM and because the TCM cannot
write data from the ROM assembly in the transmis-
sion.

CVT-10
PRECAUTIONS

Removal and Installation Procedure for CVT Unit ConnectorBCS001FS
REMOVAL
Rotate bayonet ring counterclockwise, pull out CVT unit harness
connector upward and remove it.
INSTALLATION
1. Align ∆ marking on CVT unit harness connector terminal body
with
❏ marking on bayonet ring, insert CVT unit harness con-
nector, and then rotate bayonet ring clockwise.
2. Rotate bayonet ring clockwise until ∆ marking on CVT unit har-
ness connector terminal body is aligned with the slit on bayonet
ring as shown in the figure (correctly fitting condition), install
CVT unit harness connector to CVT unit harness connector ter-
minal body.
CAUTION:

Securely align ∆ marking on CVT unit harness connector
terminal body with bayonet ring slit. Then, be careful not
to make a half fit condition as shown in the figure.

Do not mistake the slit of bayonet ring for other dent por-
tion.
SCIA2096E
SCIA2097E
SCIA2098E
SCIA2099E

PRECAUTIONS
CVT-11
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Precautions BCS001FT
NOTE:
If any malfunction occurs in the RE0F09A model transaxle, replace the entire transaxle assembly.

Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect the battery
cable from the negative terminal. 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).
When connecting pin connectors make sure that there are
not any bends or breaks on TCM pin terminal.

Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not. Refer to CVT-40, "
TCM INSPECTION TABLE".

After performing each TROUBLE DIAGNOSIS, perform “DTC Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in the “DTC Confirmation Procedure”.

Always use the specified brand of CVT fluid. Refer to MA-14, "Fluids and Lubricants" .

Use lint-free paper, not cloth rags, during work.

After replacing the CVT fluid, dispose of the waste oil using the methods prescribed by law, ordinance,
etc.
SEF289H
SEF291H
MEF040DA

CVT-40
TROUBLE DIAGNOSIS

Vehicle Speed at Which Gear Shifting OccursBCS001GO
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
TCM Input/Output Signal Reference ValuesBCS001GP
TCM TERMINAL CONNECTOR LAYOUT
TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
Engine type Throttle position Shift patternEngine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
VQ35DE8/8 “D” position 3,100 - 4,300 4,200 - 5,300
2/8 “D” position 1,200 - 2,000 1,300 - 2,100
SCIA0495E
TerminalWire
colorItem Condition Data (Approx.)
1R/YPressure control sole-
noid valve A (Line pres-
sure solenoid valve)
and Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 V
2W/BPressure control sole-
noid valve B (Second-
ary pressure solenoid
valve) Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 3.0 - 4.0 V
3GTorque converter clutch
solenoid valveWhen vehicle
cruises in “D”
position.When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.5 V
4LLock-up select solenoid
valveSelector lever in “P”, “N” positions. Battery voltage
Wait at least for 5 seconds with the selector lever in
“R”, “D” positions.0 V
5 L CAN-H — —
6 P CAN-L — —
8 G Back-up lamp relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
10 Y Power supply— Battery voltage
—0 V

TROUBLE DIAGNOSIS
CVT-41
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11 G/R Step motor A Within 2 seconds after ignition switch ON, the time measurement by
using the pulse width measurement function (Hi level) of CONSULT-
II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to test this item.30.0 msec
12 O/B Step motor B10.0 msec
13 G/W ROM assembly — —
14 L/R ROM assembly — —
15 BR/R ROM assembly — —
19 Y Power supply— Battery voltage
—0 V
20 R Step motor C Within 2 seconds after ignition switch ON, the time measurement by
using the pulse width measurement function (Hi level) of CONSULT-
II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used to test this item.30.0 msec
21 R/G Step motor D10.0 msec
24 R/B Starter relaySelector lever in “N”, “P”positions. Battery voltage
Selector lever in other positions. 0 V
25 B Ground Always 0 V
27 BR/W PNP switch 1Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” position. Battery voltage
28 Y/RPower supply
(memory back-up)Always Battery voltage
29 LG/ROutput speed sensor
(Secondary speed sen-
sor)When driving [“D” position, 20 km/h (12 MPH)]. 400 Hz
31 O K-LINE — —
32 GR PNP switch 3 (monitor)Selector lever in “D” position. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
34 P/B PNP switch 2Selector lever in “N”, “D” positions. 0 V
Selector lever in “P”, “R” positions.10.0 V - Battery
voltage
35 P/L PNP switch 3Selector lever in “D” position. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
36 G/O PNP switch 4Selector lever in “R”, “D” positions. 0 V
Selector lever in “P”, “N” positions.10.0 V - Battery
voltage TerminalWire
colorItem Condition Data (Approx.)

DTC U1000 CAN COMMUNICATION LINE
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DTC U1000 CAN COMMUNICATION LINEPFP:23710
DescriptionBCS001GS
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 malfunction detection ability.
Many electronic 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 con-
nected 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.
On Board Diagnosis LogicBCS001GT
Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II is detected when TCM cannot com-
municate to other control units.
Possible CauseBCS001GU
Harness or connectors
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureBCS001GV
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and wait for at least 6 seconds.
4. If DTC is detected, go to CVT-55, "
Diagnostic Procedure" .
BCIA0031E