steering NISSAN TEANA 2003 Workshop Manual

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-69
[VDC/TCS/ABS]
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5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector E10 (FR-RH), E38 (FR-LH), C2 (RR-RH), C3
(RR-LH) and ABS actuator and electric unit (control unit) con-
nector E241.
2. Check continuity between terminals. (Also check continuity
when the steering wheel is turned right and left and when the
sensor harness inside the wheel house is moved.)
OK or NG
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR POWER SUPPLY CIRCUIT
1. Disconnect malfunctioning wheel sensor connector.
2. Turn ignition switch ON and check voltage between wheel sen-
sor harness connector power supply terminal and ground.
OK or NG
OK >> Replace wheel sensor.
NG >> Replace ABS actuator and electric unit (control unit).
SFIA2098E
Power supply circuit Signal circuit Ground circuit
WheelABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)Wheel sensorABS actuator
and electric unit
(control unit)
(Signal)ABS actuator
and electric unit
(control unit)
(Ground)
Front RH 26 1 27 2 26, 27
31, 46 Front LH 14 1 13 2 14, 13
Rear RH 12 1 11 2 11, 12
Rear LH 28 1 29 2 28, 29
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.
Wheel Wheel sensor Ground Voltage
Front RH
1—8 V or more Front LH
Rear RH
Rear LH
SFIA3339E

TROUBLE DIAGNOSIS FOR SYSTEM
BRC-71
[VDC/TCS/ABS]
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Steering Angle Sensor SystemBFS000EB
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and steering
angle sensor connector, and check the terminal for deformation, disconnection, looseness, and so on.
Repair or replace the malfunctioning part if there are.
2. Securely reconnect connectors and perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact was loose, damaged, open or shorted.
NG >> GO TO 3.
3. CHECK STEERING ANGLE SENSOR HARNESS
1. Check CAN communication system. Refer to BRC-81, "
CAN Communication System" .
2. Turn ignition switch OFF and disconnect steering angle sensor connector M26.
3. Check continuity between steering angle sensor harness con-
nector and ground.
4. Check voltage between steering angle sensor harness connec-
tor and ground.
OK or NG
OK >> GO TO 4.
NG >> Open or short in harness. Repair or replace harness.
Self-diagnostic results
ST ANGLE SIG CIRCUIT
Steering angle sensor Ground Continuity
2—Yes
SFIA1189E
Steering angle sensor Ground Voltage
3 — Battery voltage (Approx. 12 V)
SFIA1190E

BRC-72
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS FOR SYSTEM

4. CHECK DATA MONITOR
1. Connect ABS actuator and electric unit (control unit) connector and steering angle sensor.
2. Perform “ST ANGLE SIG” at “DATA MONITOR” to check if the status is normal.
OK or NG
OK >> Perform self-diagnosis again.
NG >> Replace steering angle sensor, and then adjust neutral position of steering angle sensor. Refer to
BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .
Yaw Rate/Side/Decel G Sensor SystemBFS000EC
CAUTION:
When the vehicle turns sharply, such as a spin turn, accel turn, or drift driving, while the VDC function
is OFF (VDC OFF indicator lamp turns on), a malfunction may occur in the yaw rate/side/decel G sen-
sor system, so in this case, restart the engine, and if it recovers normally, there is no malfunction.
Always erase memory after that. Refer to BRC-58, "
ERASE MEMORY" .
INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Check self-diagnostic results.
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END
2. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect ABS actuator and electric unit (control unit) connector and yaw rate/
side/decel G sensor connector, and check the terminal for deformation, disconnection, looseness, and so
on. Repair or replace the malfunctioning part if there are.
2. Securely reconnect connectors and perform self-diagnosis again.
OK or NG
OK >> Connector terminal contact was loose, damaged, open or shorted.
NG >> GO TO 3.
Steering condition DATA MONITOR
Straight-ahead position−5° to +5°
Turn wheel to the right by 90°. Approx. +90°
Turn wheel to the left by 90°. Approx. −90°
Self-diagnostic results
YAW RATE SENSOR
SIDE G-SEN CIRCUIT
G-SENSOR

ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)
BRC-89
[VDC/TCS/ABS]
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REMOVAL
1. Disconnect ABS actuator and electric unit (control unit) connector.
2. Loosen brake tube flare nuts, then remove brake tubes from ABS actuator and electric unit (control unit).
3. Remove ABS actuator and electric unit (control unit) mounting nuts.
4. Remove ABS actuator and electric unit (control unit) from vehicle.
CAUTION:
Be careful of the following when removing ABS actuator and electric unit (control unit).

If the part number on the part number label (pasted on actuator upper surface) is the same, ABS
actuator and electric unit (control unit) cannot be used on another vehicle.
If it is used on another vehicle, ABS warning lamp, SLIP indicator lamp and VDC OFF indicator
lamp may turn ON or VDC/TCS/ABS may not operate normally.
When replacing ABS actuator and electric unit (control unit), must use new service parts.

Before servicing, disconnect battery cables.

To remove brake tube, use a flare nut torque wrench to prevent flare nuts and brake tube from
being damaged. To install, use a flare nut torque wrench (commercial service tool) and tighten
with the specified torque.

Do not apply excessive impact to actuator, such as dropping it.

Do not remove and install ABS actuator and electric unit (control unit) by holding harness.
INSTALLATION
Install is in the reverse order of the removal.
CAUTION:
Be careful of the following when installing ABS actuator and electric unit (control unit).

Tighten the mounting bolts and nuts with the specified torque.

After the work, bleed air from brake piping. Refer to BR-10, "Bleeding Brake System" .

After installing body harness connector in the actuator, make sure connector is securely locked

When replacing ABS actuator and electric unit (control unit), calibrate Steering angle sensor neu-
tral position. Refer to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" .

STEERING ANGLE SENSOR
BRC-91
[VDC/TCS/ABS]
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STEERING ANGLE SENSORPFP:25554
Removal and InstallationBFS000EU
REMOVAL
1. Remove spiral cable assembly. Refer to SRS-37, "SPIRAL CABLE" .
2. Remove screws, and then remove steering angle sensor from
spiral cable assembly.
INSTALLATION
Installation is the reverse order of the removal.
CAUTION:
Adjust the neutral position of steering angle sensor after installing. Refer to BRC-40, "
Adjustment of
Steering Angle Sensor Neutral Position" .
SFIA1404E

BRC-92
[VDC/TCS/ABS]
STEERING ANGLE SENSOR

CO-46
[VQ]
WATER PUMP

WATE R P U M PPFP:21020
Removal and InstallationBBS004X6
CAUTION:

When removing water pump assembly, be careful not to get engine coolant on drive belts.

Water pump cannot be disassembled and should be replaced as a unit.

After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester (commercial service tool) and radiator cap tester adapter [SST: EG17650301].
REMOVAL
1. Remove engine cover. Refer to EM-133, "INTAKE MANIFOLD COLLECTOR" .
2. Remove air duct (inlet). Refer to EM-131, "
AIR CLEANER AND AIR DUCT" .
3. Remove undercover and splash guard (RH).
4. Drain engine coolant from radiator. Refer to CO-34, "
Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
5. Remove drive belts. Refer to EM-128, "
DRIVE BELTS" .
6. Remove reservoir tank of radiator. Refer to CO-37, "
RADIATOR" .
7. Remove reservoir tank of power steering oil pump with piping connected, and move it to aside.
8. Support oil pan (lower) bottom with transmission jack.
9. Remove engine mounting insulator (RH) and engine mounting bracket (RH). Refer to EM-223, "
ENGINE
ASSEMBLY" .
1. Water pump 2. Timing chain tensioner (primary) 3. Chain tensioner cover
4. Water drain plug (front) 5. Water pump cover 6. O-ring
7. O-ring
PBIC2515E

CVT-1
CVT
C TRANSMISSION/TRANSAXLE
CONTENTS
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SECTION CVT
A
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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-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.

EC-7
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ECA
DTC P1212 TCS COMMUNICATION LINE ............ 574
Description ........................................................... 574
On Board Diagnosis Logic ................................... 574
DTC Confirmation Procedure ............................... 574
Diagnostic Procedure ........................................... 574
DTC P1217 ENGINE OVER TEMPERATURE ....... 575
System Description .............................................. 575
CONSULT-II Reference Value in Data Monitor Mode
. 576
On Board Diagnosis Logic ................................... 577
Overall Function Check ........................................ 577
Wiring Diagram .................................................... 579
Diagnostic Procedure ........................................... 581
Main 12 Causes of Overheating ........................... 584
Component Inspection ......................................... 585
DTC P1225 TP SENSOR ........................................ 586
Component Description ........................................ 586
On Board Diagnosis Logic ................................... 586
DTC Confirmation Procedure ............................... 586
Diagnostic Procedure ........................................... 587
Removal and Installation ...................................... 587
DTC P1226 TP SENSOR ........................................ 588
Component Description ........................................ 588
On Board Diagnosis Logic ................................... 588
DTC Confirmation Procedure ............................... 588
Diagnostic Procedure ........................................... 589
Removal and Installation ...................................... 589
DTC P1229 SENSOR POWER SUPPLY ................ 590
On Board Diagnosis Logic ................................... 590
DTC Confirmation Procedure ............................... 590
Wiring Diagram .................................................... 591
Diagnostic Procedure ........................................... 592
DTC P1564 ASCD STEERING SWITCH ................ 595
Component Description ........................................ 595
CONSULT-II Reference Value in Data Monitor Mode
. 595
On Board Diagnosis Logic ................................... 595
DTC Confirmation Procedure ............................... 596
Wiring Diagram .................................................... 597
Diagnostic Procedure ........................................... 598
Component Inspection ......................................... 601
DTC P1572 ASCD BRAKE SWITCH ..................... 602
Component Description ........................................ 602
CONSULT-II Reference Value in Data Monitor Mode
. 602
On Board Diagnosis Logic ................................... 602
DTC Confirmation Procedure ............................... 603
Overall Function Check ........................................ 604
Wiring Diagram .................................................... 605
Diagnostic Procedure ........................................... 606
Component Inspection ......................................... 610
DTC P1574 ASCD VEHICLE SPEED SENSOR .....611
Component Description ......................................... 611
On Board Diagnosis Logic .................................... 611
DTC Confirmation Procedure ................................ 611
Diagnostic Procedure ........................................... 612
DTC P1700 CVT CONTROL SYSTEM ................... 613
Description ........................................................... 613DTC P1706 PNP SWITCH ......................................614
Component Description ........................................614
CONSULT-II Reference Value in Data Monitor Mode
.614
On Board Diagnosis Logic ....................................614
Overall Function Check ........................................614
Wiring Diagram .....................................................615
Diagnostic Procedure ...........................................618
DTC P1715 INPUT SPEED SENSOR (PRIMARY
SPEED SENSOR) ...................................................622
Description ............................................................622
CONSULT-II Reference Value in Data Monitor Mode
.622
On Board Diagnosis Logic ....................................622
DTC Confirmation Procedure ...............................622
Diagnostic Procedure ...........................................623
DTC P1720 VSS ......................................................624
Description ............................................................624
CONSULT-II Reference Value in Data Monitor Mode
.624
On Board Diagnosis Logic ....................................624
DTC Confirmation Procedure ...............................624
Diagnostic Procedure ...........................................625
DTC P1805 BRAKE SWITCH .................................626
Description ............................................................626
CONSULT-II Reference Value in Data Monitor Mode
.626
On Board Diagnosis Logic ....................................626
DTC Confirmation Procedure ...............................626
Wiring Diagram .....................................................627
Diagnostic Procedure ...........................................628
Component Inspection ..........................................630
DTC P2122, P2123 APP SENSOR .........................631
Component Description ........................................631
CONSULT-II Reference Value in Data Monitor Mode
.631
On Board Diagnosis Logic ....................................631
DTC Confirmation Procedure ...............................632
Wiring Diagram .....................................................633
Diagnostic Procedure ...........................................634
Component Inspection ..........................................637
Removal and Installation ......................................637
DTC P2127, P2128 APP SENSOR .........................638
Component Description ........................................638
CONSULT-II Reference Value in Data Monitor Mode
.638
On Board Diagnosis Logic ....................................638
DTC Confirmation Procedure ...............................639
Wiring Diagram .....................................................640
Diagnostic Procedure ...........................................641
Component Inspection ..........................................644
Removal and Installation ......................................644
DTC P2135 TP SENSOR ........................................645
Component Description ........................................645
CONSULT-II Reference Value in Data Monitor Mode
.645
On Board Diagnosis Logic ....................................645
DTC Confirmation Procedure ...............................646
Wiring Diagram .....................................................647