2005 TOYOTA AVENSIS Circuit

D26540
T4
Turbine Speed SensorECM
NT+ E1227
B±O
2
B
NT± E1235 1 05±884
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0717/37 TURBINE SPEED SENSOR CIRCUIT NO
SIGNAL
CIRCUIT DESCRIPTION
This sensor detects the rotation speed of the input turbine. By comparing the input turbine speed signal (NT)
with the counter gear speed sensor signal (NC), the ECM detects the shift timing of the gears and appropri-
ately controls the engine torque and hydraulic pressure according to various conditions. Thus smooth gear
shifting is performed.
DTC No.DTC Detection ConditionTrouble Area
P0717/37
ECM detects conditions (a), (b), (c) and (d) continuity for 5 sec.
or more: (2 trip detection logic)
(a) Vehicle speed: 50 km/h (20 mph) or more
(b) 2nd, 3rd or O/D gear
(c) Solenoid valves and park/neutral position switch are normal
(d) NT < 300 rpm

Open or short in speed sensor (NT) circuit

Speed sensor (NT)

ECM
WIRING DIAGRAM
05C8U±01

D26545
E1
ECT Solenoid
ECM
28
E2 BR
6
30
THO
E13
1 E2
THO O
O
VE13 05±882
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0710/38 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT
DTC P0712/38 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT LOW INPUT
DTC P0713/38 TRANSMISSION FLUID TEMPERATURE
SENSOR ºAº CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The ATF temperature sensor converts the fluid temperature into a resistance value which is input into the
ECM.
DTC No.DTC Detection ConditionTrouble Area
P0710/38
(a) and (b) is detected momentary within 0.5 sec. when neither
P0712 or P0713 is not detected (1±trip detection logic)
(a) ATF temperature sensor resistance is less than 79 
(b) ATF temperature sensor resistance is more than 156 k
HINT:
Wthin 0.5 sec. the malfunction switches from (a) to (b) or from
(b) to (a)

Open or short in ATF temperature sensor circuit

ATF temperature sensor
P0712/38ATF temperature sensor resistance is less than 79 for 0.5
sec. or more (1±trip detection logic)
ECM
P0713/38
DTC is detected for 0.5 sec. or more (1±trip detection logic)
ATF temperature sensor resistance is more than 156 kafter
started engine for 15 minutes or more
WIRING DIAGRAM
05C8T±01

0567W±11
±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))05±879
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
HINT:
If a normal code is displayed during the DTC check but the trouble still o\
ccurs, check the circuits for each
symptom in the order given in the charts on the following pages and proceed to \
the page given for trouble-
shooting.
The Matrix Chart is divided into 3 chapters.

If the instruction ºProceed to next circuit inspection shown on matri\
x chartº is given in the flow chart
for each circuit, proceed to the circuit with the next highest number in the table to continue the check.

If the trouble still occurs even though there are no abnormalities in any of the other circuits, then ch\
eck
and replace the ECM.
CHAPTER 1: ELECTRONIC CIRCUIT MATRIX CHART
SymptomSuspect AreaSee page
No up±shift (A particular gear, from 1st to O/D gear, is not up±
shifted)ECM01±32
No down±shift (A particular gear, from O/D to 1st gear, is not
down±shifted)ECM01±32
No lock±up or No lock±up off
4. Stop light switch circuit
5. Engine coolant temp. sensor circuit
6. Throttle position sensor circuit
7. ECM05±905
05±161
05±161
01±32
Shift point too high or too lowECM01±32
No gear change by shifting into º+º or º±º while the shif\
t lever is in
the Sposition1. Transmission control switch circuit
2. ECM05±91001±32
Up±shift to O/D from 3rd while engine is cold
1. Engine coolant temp. sensor circuit
2. ATF temp. sensor circuit
3. ECM05±161
05±88201±32
Harsh engagement (N
D)ECM01±32
Harsh engagement (Lock±up)ECM01±32
Harsh engagement (Any driving range)ECM01±32
Poor accelerationECM01±32
Engine stalls when starting off or stoppingECM01±32
No kick±down1. Kick±down switch circuit
2. ECM05±908
01±32

0567Q±08
05±876±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the circuit listed in th\
e table below and proceed to the
page given.
*
1 : ± ... MIL does not light /
... MIL light up
DTC No.
(See Page)Detection ItemTrouble AreaMIL *Memory
P0500/42 (05±240)Vehicle Speed Sensor ºAº
 Combination meter
 Open or short in vehicle speed sensor circuit
 Vehicle speed sensor
 ECM


P0710/38
(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit

P0712/38(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit Low Input Open or short in ATF temperature sensor circuit
 ATF temperature sensor

ECM


P0713/38
(05±882)Transmission Fluid Temperature
Sensor ºAº Circuit High Input
ECM


P0717/37(05±884)Turbine Speed Sensor Circuit No
Signal
 Open or short in speed sensor (NT) circuit
 Speed sensor (NT)
 ECM
 Automatic transaxle assembly


P0748/62
(05±886)Pressure Control Solenoid ºAº
Electrical
(Shift Solenoid Valve SL1) Open or short in shift solenoid valve SL1 circuit
 Shift solenoid valve SL1
 ECM


P0778/63
(05±886)Pressure Control Solenoid ºBº
Electrical
(Shift Solenoid Valve SL2) Open or short in shift solenoid valve SL2 circuit
 Shift solenoid valve SL2
 ECM


P0793/67
(05±892)Intermediate Shaft Speed Sen-
sor ºAº Open or short in speed sensor (NC) circuit
 Speed sensor (NC)
 ECM


P0982/65
(05±886)Shift Solenoid ºDº Control Circuit
Low (Shift Solenoid Valve S4) Open or short in shift solenoid valve S4 circuit
Shift l id l S4


P0983/65
(05±886)Shift Solenoid ºDº Control Circuit
High (Shift Solenoid Valve S4) Shift solenoid valve S4
 ECM


P2716/77
(05±894)Pressure Contorl Solenoid ºDº
Electrical
(Shift Solenoid Valve SLT) Open or short in shift solenoid valve SLT circuit
 Shift solenoid valve SLT
 ECM
±
P2769/64
(05±897)Torque Converter Clutch Sole-
noid Circuit Low
(Shift Solenoid Valve DSL)
 Open or short in shift solenoid valve DSL circuit
Shift l id l DSL
±
P2770/64
(05±897)Torque Converter Clutch Sole-
noid Circuit High
(Shift Solenoid Valve DSL) Shift solenoid valve DSL
 ECM
±

05±868± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
4. DATA LIST
HINT:
According to the DATA LIST displayed by the hand±held tester, you can read the value of the switch, sensor,
actuator and so on without parts removal. Reading the DATA LIST as the first step of troubleshooting is one
of the methods to shorten the work time.
(a) Warm up the engine.
(b) Turn the ignition switch OFF.
(c) Connect the hand±held tester to the DLC3.
(d) Turn the ignition switch ON.
(e) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
STOP LIGHT SWStop light SW Status/
ON or OFF
Brake Pedal is depressed: ON

Brake Pedal is released: OFF

SHIFTActual Gear Position/
1st, 2nd, 3rd, 4th (O/D)Shift lever Range is;

D: 1st, 2nd, 3rd or 4th (O/D)

SPD (NC)Counter Gear Speed
display: 50 r/minD Range is warmed up,4th (O/D);
Same as input shaft speed

LOCK UP SOLLock Up Solenoid Status/
ON or OFF
Lock Up: ON

Except Lock Up: OFF

KICKDOWN SWKick down SW Status/
ON or OFF

Accelerator Pedal is depressed:
ON

Accelerator Pedal is released:
OFF


PNP SW [NSW]PNP SW Status/
ON or OFFShift lever range is;
P or N: ON
Except P or N: OFF
The shift lever range and these
REVERSEPNP SW Status/
ON or OFFShift lever range is;
R: ON
Except R: OFFThe shift lever range and these
values are different, there are fail-
ures of the PNP switch or shift
cable adjustment
DRIVEPNP SW Status/
ON or OFFShift lever range is;
D and 3: ON
Except D and 3: OFFcable adjustment.
SOLENOID (SLT)Shift Solenoid SLT Status/
ON or OFFIG SW ON: ON

AT FLUID TEMP
ATF Temp. Sensor Value/
min.: ±40C (±40F)
max.: 215C (419F)80C (176F)
(After Stall Test)If the value is º±40C (±40F)º or
º215C (419F)º, ATF temp. sen-
sor circuit is opened or shorted.










D25472
SST
SST
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±873
AVENSIS REPAIR MANUAL (RM1018E)
9. HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Do the test at normal operation ATF temperature 50 to 80
C (122 to 176
F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the rear side of the trans-
axle case and connect SST.
SST 09992±00095 (09992± 00231, 09992±00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect the hand±held tester to DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D range.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R range.
Specified line pressure:
ConditionD range kPa (kgf / cm2, psi)R range kPa (kgf / cm2, psi)
Idling372 to 412 (3.8 to 4.2, 54 to 60)672 to 742 (6.9 to 7.6, 98 to 108)
Stall931 to 1,031 (9.5 to 10.5, 135 to 150)1,768 to 1,968 (18.0 to 20.1, 256 to 285)
Evaluation:
ProblemPossible cause
If the measured values at all ranges are higher
Line pressure control solenoid (SLT) defective

Regulator valve detective
If the measured values at all ranges are lower

Line pressure control solenoid (SLT) defective

Regulator valve detective

Oil pump defective
If pressure is low in the D range only
D range circuit fluid leak

Forward clutch defective
If pressure is low in the R range only

R range circuit fluid leak

Direct clutch defective

1st & reverse brake defective

D09299
05±874± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
10. MANUAL SHIFTING TEST
HINT:
By this test, it can be determined whether the trouble is within
the electrical circuit or is a mechanical problem in the transaxle.
(a) Disconnect the solenoid wire.
(b) Inspect the manual driving operation.
Check that the shift and gear ranges correspond to the
table below.
While driving, shift through the D range.
Check that the gear change corresponds to the shift
range.
Shift rangeGear position
D3rd
RReverse
PPawl Lock
HINT:
If the gear positions of the D are difficult to distinguish, do the
above road test.
If any abnormality is found in the above test, the problem is in
the transaxle itself.
(c) Connect the solenoid wire.
(d) Cancel out the DTC.

05±858±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
18Circuit Inspection (See page 05±882)
19 Identification of Problem
20 Repair
21 Confirmation Test
End
When not using hand±held tester, troubleshoot in accordance with the proce-
dure on the following pages.
1 Vehicle Brought to Workshop
2Customer Problem Analysis (See page 05±862)
3Check and Clear DTCs (See page 05±863)
4 Problem Symptom Confirmation
Symptom does not occur: Go to step 5
Symptom occur: Go to step 6
5Symptom Simulation (See page 01±22)