2003 NISSAN TEANA manual transmission

CVT-28
TROUBLE DIAGNOSIS

4❏ Perform road testCVT-35
4-1.Check before engine is started CVT-37
❏ CVT-164, "CVT Indicator Lamp Does Not Come On"
❏ Perform self-diagnosis. Enter checks for detected items. CVT-47
❏ CVT-53, "DTC U1000 CAN COMMUNICATION LINE"
❏ CVT-56, "DTC P0615 START SIGNAL CIRCUIT"
❏ CVT-60, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
❏ CVT-62, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏ CVT-69, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
❏ CVT-74, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
❏ CVT-79, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SEN-
SOR)"
❏ CVT-85, "DTC P0725 ENGINE SPEED SIGNAL"
❏ CVT-87, "DTC P0730 BELT DAMAGE"
❏ CVT-89, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
❏ CVT-94, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
❏ CVT-97, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
❏ CVT-102, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
❏ CVT-105, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE
(SEC PRESSURE SOLENOID VALVE)"
❏ CVT-108, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
PRESSURE SOLENOID VALVE)"
❏ CVT-113, "DTC P0826 MANUAL MODE SWITCH CIRCUIT"
❏ CVT-118, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
(SEC PRESSURE SENSOR)"
❏ CVT-123, "DTC P0841 PRESSURE SENSOR FUNCTION"
❏ CVT-126, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
(PRI PRESSURE SENSOR)"
❏ CVT-131, "DTC P0868 SECONDARY PRESSURE DOWN"
❏ CVT-134, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
❏ CVT-139, "DTC P1705 THROTTLE POSITION SENSOR"
❏ CVT-141, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
❏ CVT-143, "DTC P1723 CVT SPEED SENSOR FUNCTION"
❏ CVT-145, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
❏ CVT-147, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
❏ CVT-153, "DTC P1777 STEP MOTOR - CIRCUIT"
❏ CVT-157, "DTC P1778 STEP MOTOR - FUNCTION"
4-2.Check at idleCVT-37
❏ CVT-165, "Engine Cannot Be Started in “P” or “N” Position"
❏ CVT-166, "In “P” Position, Vehicle Moves Forward or Backward When Pushed"
❏ CVT-166, "In “N” Position, Vehicle Moves"
❏ CVT-167, "Large Shock “N” → “R” Position"
❏ CVT-168, "Vehicle Does Not Creep Backward in “R” Position"
❏ CVT-169, "Vehicle Does Not Creep Forward in “D” Position"

TROUBLE DIAGNOSIS
CVT-29
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CVT

44-3.Cruise testCVT-38
❏ CVT-170, "CVT Does Not Shift"
❏ CVT-171, "Cannot Be Changed to Manual Mode"
❏ CVT-171, "CVT Does Not Shift in Manual Mode"
❏ CVT-172, "Vehicle Does Not Decelerate by Engine Brake"
❏ Perform self-diagnosis. Enter checks for detected items. CVT-47
❏ CVT-53, "DTC U1000 CAN COMMUNICATION LINE"
❏ CVT-56, "DTC P0615 START SIGNAL CIRCUIT"
❏ CVT-60, "DTC P0703 STOP LAMP SWITCH CIRCUIT"
❏ CVT-62, "DTC P0705 PARK/NEUTRAL POSITION SWITCH"
❏ CVT-69, "DTC P0710 CVT FLUID TEMPERATURE SENSOR CIRCUIT"
❏ CVT-74, "DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)"
❏ CVT-79, "DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SEN-
SOR)"
❏ CVT-85, "DTC P0725 ENGINE SPEED SIGNAL"
❏ CVT-87, "DTC P0730 BELT DAMAGE"
❏ CVT-89, "DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE"
❏ CVT-94, "DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)"
❏ CVT-97, "DTC P0745 LINE PRESSURE SOLENOID VALVE"
❏ CVT-102, "DTC P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE
(LINE PRESSURE SOLENOID VALVE)"
❏ CVT-105, "DTC P0776 PRESSURE CONTROL SOLENOID B PERFORMANCE
(SEC PRESSURE SOLENOID VALVE)"
❏ CVT-108, "DTC P0778 PRESSURE CONTROL SOLENOID B ELECTRICAL (SEC
PRESSURE SOLENOID VALVE)"
❏ CVT-113, "DTC P0826 MANUAL MODE SWITCH CIRCUIT"
❏ CVT-118, "DTC P0840 TRANSMISSION FLUID PRESSURE SENSOR A CIRCUIT
(SEC PRESSURE SENSOR)"
❏ CVT-123, "DTC P0841 PRESSURE SENSOR FUNCTION"
❏ CVT-126, "DTC P0845 TRANSMISSION FLUID PRESSURE SENSOR B CIRCUIT
(PRI PRESSURE SENSOR)"
❏ CVT-131, "DTC P0868 SECONDARY PRESSURE DOWN"
❏ CVT-134, "DTC P1701 TRANSMISSION CONTROL MODULE (POWER SUPPLY)"
❏ CVT-139, "DTC P1705 THROTTLE POSITION SENSOR"
❏ CVT-141, "DTC P1722 ESTM VEHICLE SPEED SIGNAL"
❏ CVT-143, "DTC P1723 CVT SPEED SENSOR FUNCTION"
❏ CVT-145, "DTC P1726 ELECTRIC THROTTLE CONTROL SYSTEM"
❏ CVT-147, "DTC P1740 LOCK-UP SELECT SOLENOID VALVE CIRCUIT"
❏ CVT-153, "DTC P1777 STEP MOTOR - CIRCUIT"
❏ CVT-157, "DTC P1778 STEP MOTOR - FUNCTION"
5❏ Inspect each system for items found to be NG in the self-diagnosis and repair or replace the malfunctioning parts
6❏ Perform all road tests and enter the checks again for the required itemsCVT-35
7❏ For any remaining NG items, perform the “diagnosis procedure” and repair or replace the malfunctioning parts
8❏ Erase the results of the self-diagnosis from the TCMCVT-49

CVT-48
TROUBLE DIAGNOSIS

A/T TCC S/V FNCTN

There is a big difference engine speed and primary speed when
TCM lock-up signal is on

CVT cannot perform lock-up even if electrical circuit is good

TCM detects as irregular by comparing difference value with slip
rotationP0744CVT-94
L/PRESS SOL/CIRC

Normal voltage not applied to solenoid due to open or short cir-
cuit

TCM detects as irregular by comparing target value with monitor
valueP0745CVT-97
PRS CNT SOL/A FCTNUnexpected gear ratio was detected in the LOW side due to exces-
sively low line pressureP0746CVT-102
PRS CNT SOL/B FCTNSecondary pressure is too high or too low compared with the com-
manded value while drivingP0776CVT-105
PRS CNT SOL/B CIRC

Normal voltage not applied to solenoid due to cut line, short, or
the like

TCM detects as irregular by comparing target value with monitor
valueP0778CVT-108
MANUAL MODE SWITCHWhen an impossible pattern of switch signals is detected, a mal-
function is detectedP0826CVT-113
TR PRS SENS/A CIRCSignal voltage of the transmission fluid pressure sensor A (second-
ary pressure sensor) is too high or too low while drivingP0840CVT-118
PRESS SEN/FNCTNCorrelation between the values of the transmission fluid pressure
sensor A (secondary pressure sensor) and the transmission fluid
pressure sensor B (primary pressure sensor) is out of specificationP0841CVT-123
TR PRS SENS/B CIRCSignal voltage of the transmission fluid pressure sensor B (primary
pressure sensor) is too high or too low while drivingP0845CVT-126
SEC/PRESS DOWNSecondary fluid pressure is too low compared with the commanded
value while drivingP0868CVT-131
TCM-POWER SUPPLY

When the power supply to the TCM is cut OFF, for example
because the battery is removed, and the self-diagnosis memory
function stops

This is not a malfunction message (Whenever shutting OFF a
power supply to the TCM, this message appears on the screen)P1701CVT-134
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position signals
(input by CAN communication) from ECMP1705CVT-139
ESTM VEH SPD SIG

CAN communication with the ABS actuator and the electric unit
(control unit) is malfunctioning

There is a great difference between the vehicle speed signal from
the ABS actuator and the electric unit (control unit), and the vehi-
cle speed sensor signalP1722CVT-141
CVT SPD SEN/FNCTNA rotation sensor error is detected because the gear does not
change in accordance with the position of the stepping motor
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715 INPUT
SPD SEN/CIRC” or the “P0725 ENGINE SPEED SIG” is dis-
played with the DTC at the same timeP1723CVT-143
ELEC TH CONTROL The electronically controlled throttle for ECM is malfunctioning P1726CVT-145
LU-SLCT SOL/CIRC

Normal voltage not applied to solenoid due to cut line, short, or
the like

TCM detects as irregular by comparing target value with monitor
valueP1740CVT-147
L/PRESS CONTROL TCM detects the unexpected line pressure P1745CVT-152
Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC

DTC P0826 MANUAL MODE SWITCH CIRCUIT
CVT-113
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CVT

DTC P0826 MANUAL MODE SWITCH CIRCUITPFP:34901
DescriptionBCS001JN
Manual mode switch is installed in CVT control device. The manual mode switch sends shift up and shift down
switch signals to TCM.
TCM sends the switch signals to unified meter and A/C amp via CAN communication line. Then manual mode
switch position is indicated on the shift position indicator. For inspection, refer to CVT-159, "
Diagnostic Proce-
dure" .
CONSULT-II Reference ValueBCS001JO
On Board Diagnosis LogicBCS001JP
Diagnostic trouble code “P0826 MANUAL MODE SWITCH” with CONSULT-II is detected when TCM monitors
Manual mode, Non manual mode, Up or Down switch signal, and then detects irregular with impossible input
pattern for 1 second or more.
Possible CauseBCS001JQ

Harness or connectors
(These switches circuit is open or shorted.)
(TCM, and unified meter and A/C amp circuit are open or shorted.)
(CAN communication line is open or shorted.)

Manual mode select switch (Built into CVT control device)

Manual mode position select switch (Built into CVT control device)
DTC Confirmation ProcedureBCS001JR
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and
wait at least 10 seconds before conducting the next test.
After the repair, perform the following procedure to confirm 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.
4. Move selector lever to “M” position.
5. Drive vehicle for at least 2 consecutive seconds.
6. If DTC is detected, go to CVT-115, "
Diagnostic Procedure" .
Item name Condition Display value
MMODEManual shift gate position (neutral) ON
Other than the above OFF
NON MMODEManual shift gate position (neutral, +side, -side) OFF
Other than the above ON
UPLVRSelector lever: + side ON
Other than the above OFF
DOWNLVRSelector lever: - side ON
Other than the above OFF
BCIA0031E

DTC P0826 MANUAL MODE SWITCH CIRCUIT
CVT-115
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TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureBCS001JU
1. CHECK CAN COMMUNICATION LINE
Perform the self-diagnosis check. Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Check CAN communication line. Refer to CVT-53, "DTC U1000 CAN COMMUNICATION LINE" .
NO >> GO TO 2.
2. CHECK MANUAL MODE SWITCH CIRCUIT
With CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Read out ON/OFF switching action of the “MMODE”, “NON M-
MODE”, “UPLVR”, “DOWNLVR”.
Without CONSULT-II
Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the
position mutually coincide when the selector lever is shifted to the “+ (up)” or “- (down)” side (1st ⇔ 6th gear).
OK or NG
OK >> GO TO 7.
NG >> GO TO 3.
3. CHECK MANUAL MODE SWITCH
Check manual mode switch. Refer to CVT-117, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SELF-DIAGNOSTIC RESULTS (UNIFIED METER AND A/C AMP)
Perform self-diagnosis check. Refer to DI-29, "
CONSULT-II Function (METER A/C AMP)" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 5.
TerminalWire
colorItem Condition Data (Approx.)
5 L CAN-H — —
6 P CAN-L — —
Item name Condition Display value
MMODEManual shift gate posi-
tion (neutral)ON
Other than the above OFF
NON MMODEManual shift gate posi-
tion (neutral, +side, -side)OFF
Other than the above ON
UPLVRSelector lever: + side ON
Other than the above OFF
DOWNLVRSelector lever: - side ON
Other than the above OFF
SCIA4588E

CVT INDICATOR CIRCUIT
CVT-159
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CVT

CVT INDICATOR CIRCUITPFP:24810
DescriptionBCS001M6
TCM sends the switch signals to unified meter and A/C amp via CAN communication line. Then manual mode
switch position is indicated on the CVT indicator.
CONSULT-II Reference ValueBCS001M7
Diagnostic ProcedureBCS001M8
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-II and read
out the value of “M GEAR POS”.
3. Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of
the position mutually coincide when the select lever is shifted to the “+ (up)” or “- (down)” side (1st ⇔ 6th
gear).
OK or NG
OK >>INSPECTION END
NG >> Check the following.
CVT INDICATOR SYMPTOM CHART
Item name Condition Display value
M GEAR POS During driving 1, 2, 3, 4, 5, 6
Items Presumed location of trouble
The actual gear position does not change, or shifting into the
manual mode is not possible (no gear shifting in the manual mode
possible).
The shift position indicator is not indicated.

Manual mode switch
Refer to CVT-113, "
DTC P0826 MANUAL MODE SWITCH
CIRCUIT" .

CVT main system (Fail-safe function actuated)
Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
The actual gear position changes, but the shift position indicator
is not indicated.Perform the self-diagnosis function.
Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
The actual gear position and the indication on the shift position
indicator do not coincide.Perform the self-diagnosis function.
Refer to CVT-47, "
SELF-DIAGNOSTIC RESULT MODE" .
Only a specific position or positions is/are not indicated on the
shift position indicator.Check the meter control unit.
Refer to DI-4, "
COMBINATION METERS" .

ENGINE ASSEMBLY
EM-79
[QR]
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Removal
1. Install engine slingers into front left of cylinder head and rear right of cylinder head.

Use alternator bracket mounting bolt holes for the front side.
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member, and simultaneously adjust
hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
4. Separate RH engine mounting insulator and RH engine mounting bracket.
5. Pull LH engine mounting through-bolt out.
6. Remove front suspension member mounting nuts and bolts. Refer to FSU-5, "
FRONT SUSPENSION
ASSEMBLY" .
7. Remove engine and transaxle assembly with front suspension member from vehicle downward by care-
fully operating supporting tools.
CAUTION:

During the operation, make sure that no part interferes with vehicle side.

Before and during this lifting, always check if any harnesses are left connected.

During the removal operation, always be careful to prevent vehicle from falling off the lift due to
changes in the center of gravity.

If necessary, support vehicle by setting jack or equivalent tool at the rear.
8. Remove power steering oil pump with piping connected from engine. Refer to PS-29, "
POWER STEER-
ING OIL PUMP" .
9. Remove front engine mounting and rear engine mounting through-bolts to remove front suspension mem-
ber.
10. Remove starter motor. Refer to SC-14, "
STARTING SYSTEM" .
11. Remove each engine mounting insulator and each engine mounting bracket from engine, transaxle and
front suspension member.
12. Separate engine and transaxle. Refer to AT- 2 4 1 , "
TRANSAXLE ASSEMBLY" .
INSTALLATION
Note the following, and install in the reverse order of removal.

Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting
insulator.

When installation directions are specified, install parts according to the direction marks on them referring
to the figure of components. Refer to EM-77, "
Removal and Installation" .

Make sure that each engine mounting insulator is seated properly, and tighten mounting nuts and bolts.Slinger bolts:
Front
: 57.9 N·m (5.9 kg-m, 43 ft-lb)
Rear
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
SBIA0271E
PBIC2484E

ENGINE ASSEMBLY
EM-225
[VQ]
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Vehicle Underbody
1. Remove front drive shafts (right and left sides). Refer to FAX-8, "FRONT DRIVE SHAFT" .
2. Remove front exhaust tube. Refer to EX-2, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint at power steering gear assembly side, and release steering lower shaft.
Refer to PS-17, "
POWER STEERING GEAR AND LINKAGE" .
4. Disconnect front stabilizer connecting rod. Refer to FSU-16, "
STABILIZER BAR" .
5. Disconnect power steering piping at a point between vehicle and engine. Refer to PS-39, "
HYDRAULIC
LINE" .

Install plug to avoid leakage of power steering fluid.
6. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensor in a location where it is exposed to magnetism.
Removal Work
1. Install engine slingers into front of cylinder head (right bank) and
rear of cylinder head (left bank).
2. Lift with hoist and secure engine in position.
3. Use manual lift table caddy (commercial service tool) or equiva-
lently rigid tool such as transmission jack. Securely support bot-
tom of front suspension member, and simultaneously adjust
hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
4. Separate engine mounting insulator (RH) and engine mounting bracket (RH).
5. Remove engine mounting (LH) through-bolt. (VQ23DE)
PBIC2483E
PBIC2484E