sensor NISSAN TEANA 2003 Service Manual

CVT-24
TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
DTC Inspection Priority ChartBCS001GE
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-53
.
Fail-safeBCS001GF
The TCM has an electrical fail-safe mode. This mode makes it possible to operate even if there is an error in a
main electronic control input/output signal circuit.
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the CVT to make driving possible.
Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the
output speed sensor (secondary speed sensor) to the TCM. The manual mode position and second position is
inhibited, and the transaxle is put in “D”.
Input Speed Sensor (Primary Speed Sensor)
The shift pattern is changed in accordance with throttle position and secondary speed (vehicle speed) when
an unexpected signal is sent from the input speed sensor (primary speed sensor) to the TCM. The manual
mode position and second position is inhibited, and the transaxle is put in “D”.
PNP Switch
If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”.
Manual Mode Switch
If an unexpected signal is sent from the manual mode switch to the TCM, the transaxle is put in “D”.
CVT Fluid Temperature Sensor
If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or the gear ratio is controlled to keep engine speed under 5,000
rpm.
Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor)

If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor)
to the TCM, the secondary pressure feedback control is stopped and the offset value obtained before the
non-standard condition occurs is used to control line pressure.

If transmission fluid pressure sensor A (secondary pressure sensor) error signal is input to TCM, second-
ary pressure feedback control stops, but line pressure is controlled normally.
Pressure Control Solenoid A (Line Pressure Solenoid)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid A (line pressure
solenoid) is turned OFF to achieve the maximum fluid pressure.
Pressure Control Solenoid B (Secondary Pressure Solenoid)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid B (secondary pres-
sure solenoid) is turned OFF to achieve the maximum fluid pressure.
Torque Converter Clutch Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the torque converter clutch solenoid is turned
OFF to cancel the lock-up.
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

TROUBLE DIAGNOSIS
CVT-25
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CVT

Step Motor
If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used right before the non-standard condition occurred.
CVT Lock-up Select Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the CVT lock-up select solenoid is turned OFF to
cancel the lock-up.
TCM Power Supply (Memory Back-up)
Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to TCM. Normal statues is restored when turning the ignition switch
OFF to ON after the normal power supply.
How to Perform Trouble Diagnosis for Quick and Accurate RepairBCS001GG
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, PNP
switch and provides shift control or lock-up control via CVT solenoid
valves.
Input and output signals must always be correct and stable in the
operation of the CVT system. The CVT system must be in good
operating condition and be free of valve seizure, solenoid valve mal-
function, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-II or a circuit tester connected should be performed.
Follow the CVT-26, "
WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to CVT-27
) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SAT631IB
SAT632I
SEF234G

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-34
TROUBLE DIAGNOSIS

5. Start the engine, and then measure the line pressure at idle
speed.
CAUTION:
Keep the brake pedal pressed all the way down during mea-
surement.
6. After the measurements are complete, install the oil pressure
detection plug and tighten to the specified torque below.
CAUTION:

Do not reuse O-ring.

Apply CVT fluid to O-ring.
Line Pressure
*1 : Reference values
Judgement of Line Pressure Test
: 7.5 N·m (0.77 kg-m, 66 in-lb)
SAT493G
Engine Engine speedLine pressure kPa (bar, kg/cm2 , psi)
“R”, “D” positions
VQ35DEAt idle speed 750 (7.50, 7.65, 108.8)
At stall speed
5,700 (57.00, 58.14, 826.5)*
1
Judgement Possible cause
Idle speedLow for all positions
(“P”, “R”, “N”, “D”)Possible causes include malfunctions in the pressure supply system and low oil pump output
For example

Oil pump wear

Pressure regulator valve or plug sticking or spring fatigue

Oil strainer
oil pump
pressure regulator valve passage oil leak

Engine idle speed too low
Only low for a spe-
cific positionPossible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve
HighPossible causes include a sensor malfunction or malfunction in the line pressure adjustment func-
tion
For example

Accelerator pedal position signal malfunction

CVT fluid temperature sensor malfunction

Pressure control solenoid A (line pressure solenoid) malfunction (sticking in “OFF” state, filter
clog, cut line)

Pressure regulator valve or plug sticking
Stall speedOil pressure does
not rise higher than
the oil pressure for
idle.Possible causes include a sensor malfunction or malfunction in the pressure adjustment function.
For example

Accelerator pedal position signal malfunction

TCM malfunction

Pressure control solenoid A (line pressure solenoid) malfunction (shorting, sticking in “ON”
state)

Pressure regulator valve or plug sticking
The pressure rises,
but does not enter
the standard posi-
tion.Possible causes include malfunctions in the pressure supply system and malfunction in the pres-
sure adjustment function
For example

Accelerator pedal position signal malfunction

Pressure control solenoid A (line pressure solenoid) malfunction (sticking, filter clog)

Pressure regulator valve or plug sticking
Only low for a spe-
cific positionPossible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve

TROUBLE DIAGNOSIS
CVT-41
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CVT

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.)

CVT-42
TROUBLE DIAGNOSIS

37 V/WTransmission fluid
pressure sensor A
(Secondary pressure
sensor)and “N” position idle 1.0 V
38 LGInput speed sensor
(Primary speed sensor)When driving [“M1” position, 20 km/h (12 MPH)]. 700 Hz
41 V/OTransmission fluid
pressure sensor B (Pri-
mary pressure sensor)and “N” position idle 0.7 - 3.5 V
42 W/R Sensor ground Always 0 V
46 L/O Sensor power— 5.0 V
— 0 V
47 VCVT fluid temperature
sensor When CVT fluid temperature is 20°C (68°F) 2.0 V
When CVT fluid temperature is 80°C (176°F) 1.0 V
48 B Ground Always 0 V TerminalWire
colorItem Condition Data (Approx.)

TROUBLE DIAGNOSIS
CVT-43
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CVT

CONSULT-II Function (TRANSMISSION)BCS001GQ
CONSULT-II can display each diagnostic item using the diagnostic test modes shown below.
FUNCTION
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.CVT-45
Self-diagnostic results Self-diagnostic results can be read and erased quickly.CVT-47
Data monitor Input/Output data in the TCM can be read.CVT-50
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.CVT-52
CALIB dataCharacteristic information for TCM and CVT assembly can be read. Do not use, but
displayed.—
Function testPerformed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
ECU part number TCM part number can be read. —
Item name Condition Display value (Approx.)
VSP SENSOR
During drivingApproximately matches the speedometer
reading
ESTM VSP SIG
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed
ENG SPEED SIG Engine running Closely matches the tachometer reading
SEC HYDR SEN “N” position idle 1.0 V
PRI HYDR SEN “N” position idle 0.7 - 3.5 V
ATF TEMP SENWhen CVT fluid temperature is 20°C (68°F) 2.0 V
When CVT fluid temperature is 80°C (176°F) 1.0 V
VIGN SEN Ignition switch: ON Battery voltage
VEHICLE SPEED During drivingApproximately matches the speedometer
reading
PRI SPEED During driving (lock-up ON) Approximately matches the engine speed
SEC SPEED During driving45 X Approximately matches the speed-
ometer reading
ENG SPEED Engine running Closely matches the tachometer reading
GEAR RATIO During driving 2.37 - 0.43
ACC PEDAL OPENReleased accelerator pedal - Fully depressed
accelerator pedal0.0/8 - 8.0/8
SEC PRESS “N” position idle 0.5 MPa
PRI PRESS “N” position idle 0.3 - 0.7 MPa
STM STEP During driving−20 step - 190 step
ISOLT1Lock-up “OFF” 0.0 A
Lock-up “ON” 0.7 A
ISOLT2Release your foot from the accelerator pedal 0.8 A
Press the accelerator pedal all the way down 0.0 A
ISOLT3Secondary pressure low - Secondary pressure
high0.8 - 0.0 A
SOLMON1Lock-up “OFF” 0.0 A
Lock-up “ON” 0.6 - 0.7 A

TROUBLE DIAGNOSIS
CVT-47
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CVT

CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase
“CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the CVT-27, "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable —: Not applicable
SCIA4290E
BCIA0031E
Items
(CONSULT-II screen terms)Malfunction is detected when...TCM self-
diagnosisReference
page
DTC
CAN COMM CIRCUITWhen a TCM is not transmitting or receiving CAN communication
signal for 2 seconds or moreU1000CVT-53
STARTER RELAY/CIRCIf this signal is ON other than in “P” or “N” position, this is judged to
be a malfunction
(And if it is OFF in “P” or “N” position, this is judged to be a malfunc-
tion too)P0615CVT-56
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703CVT-60
PNP SW/CIRC
PNP switch 1-4 signals input with impossible pattern

PNP switch 3 monitor terminal open or short circuitP0705CVT-62
ATF TEMP SEN/CIRCDuring running, the CVT fluid temperature sensor signal voltage is
excessively high or lowP0710CVT-69
INPUT SPD SEN/CIRC

Input speed sensor (primary speed sensor) signal is not input due
to an open circuit

An unexpected signal is input when vehicle is being drivenP0715CVT-74
VEH SPD SEN/CIR AT

Signal from vehicle speed sensor CVT [Output speed sensor
(Secondary speed sensor)] not input due to open or short circuit

Unexpected signal input during runningP0720CVT-79
ENGINE SPEED SIG

TCM does not receive the CAN communication signal from the
ECM

Engine speed is too low while drivingP0725CVT-85
BELT DAMG Unexpected gear ratio detected P0730CVT-87
TCC SOLENOID/CIRC Normal voltage not applied to solenoid due to open or short circuit P0740CVT-89

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