2005 TOYOTA AVENSIS transmission

056IK–10
–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–245
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DIAGNOSTIC TROUBLE CODE CHART
If a DTC is displayed during the DTC check, check the parts listed in the \
table below and proceed to the page
given.
HINT:

*1 :  ... MIL (Malfunction Indicator Lamp) light up

*2 : ’’ ’’ mark means ECM memorizes the malfunction code if the ECM detects the DT\
C detection
condition.

This DTC may be output when the clutch, brake and gear components etc. inside\
the automatic trans-
axle are damaged.
DTC No.
(See Page)Detection ItemTrouble AreaMIL *1Memory *2
P0500
( 05–158 )Vehicle Speed Sensor ”A”

Combination meter

Open or short in vehicle speed sensor circuit

Vehicle speed sensor

ECM

P0705
( 05–247 )Transmission Range Sensor Cir-
cuit Malfunction (PRNDL Input)
Open or short in park/neutral position switch circuit

Park/neutral position switch

ECM

P0710
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit
Open or short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0711
( 05–255 )Transmission Fluid Temperature
Sensor ”A” Performance
Open or short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0712
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit Low Input
Short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0713
( 05–252 )Transmission Fluid Temperature
Sensor ”A” Circuit High Input
Open in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM

P0717
( 05–258 )Turbine Speed Sensor Circuit No
Signal

Open or short in transmission revolution sensor NT (speed
sensor NT) circuit

Transmission revolution sensor NT (speed sensor NT)

ECM

Automatic transaxle assembly

P0724
( 05–261 )Brake Switch ”B” Circuit High

Short in stop light switch circuit

Stop light switch

ECM

P0741
( 05–264 )Torque Converter Clutch Sole-
noid Performance
(Shift Solenoid Valve SL)

Shift solenoid valve SL remains open or closed

Valve body is blocked

Shift solenoid valve SL

Torque converter clutch

Automatic transaxle (clutch, brake or gear etc.)

Line pressure is too low

ECM

P0751
( 05–268 )Shift Solenoid ”A” Performance
(Shift Solenoid Valve S1)

Shift solenoid valve S1 remains open or closed

Valve body is blocked

Shift solenoid valve S1

Automatic transaxle (clutch, brake or gear etc.)

ECM

P0756
( 05–271 )Shift Solenoid ”B” Performance
(Shift Solenoid Valve S2)

Shift solenoid valve S2 remains open or closed

Valve body is blocked

Shift solenoid valve S2

Automatic transaxle (clutch, brake or gear etc.)

ECM


05KAQ–02
G24063
SST
SST
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–223
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) 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.

This check must be conducted after checking and adjusting engine.

Perform under condition that A/C is OFF.

When conducting stall test, do not continue more than 10 seconds.
(1) Warm up the ATF.
(2) Remove the test plug on the left 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 an Intelligent Tester II to the 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 position.
(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 position.
Specified line pressure:
ConditionD position kPa (kgf / cm2, psi)R position kPa (kgf / cm2, psi)
Idling372 to 412 kPa
(3.8 to 4.2 kgf/cm2, 54 to 60 psi)
553 to 623 kPa
(5.6 to 6.4 kgf/cm2, 80 to 90 psi)
Stall test1,126 to 1,226 kPa
(11.5 to 12.5 kgf/cm2, 163 to 178 psi)
1,664 to 1,864 kPa
(17.0 to 19.0 kgf/cm2, 241 to 270 psi)
Evaluation:
ProblemPossible cause
If the measured values at all positions are higher
Shift solenoid valve SLT defective

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

Shift solenoid valve SLT defective

Regulator valve detective

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

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

R position circuit fluid leak

Reverse clutch defective

1st and reverse brake defective

05KAP–02
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–221
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
MECHANICAL SYSTEM TESTS
1. PERFORM MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80
C (122 to 176
F).

Do not continuously run this test for longer than 10 seconds.

To ensure safety, do this test in a wide, clear level area which provides good traction.

The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an Intelligent Tester II to the DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressed firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
(7) Quickly read the stall speed at this time.
Stall speed: 2,400
150 rpm
(8) Do the same test in the R position.
Stall speed: 2,400
150 rpm
Evaluation:
ProblemPossible cause
(a) Stall engine speed is low in D and R positions

Engine power output may be insufficient

Stator one–way clutch not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Stall engine speed is high in D position

Line pressure is too low

Forward clutch slipping

One–way clutch No.2 not operating properly
(c) Stall engine speed is high in R position

Line pressure is too low

Reverse clutch slipping

1st and reverse brake slipping
(d) Stall engine speed is high in D and R positions
Line pressure is too low

Improper fluid level

05KAM–02
NE
THW
VTA1, 2
VC
SPD
STP
THONTS1
S2
SLT
SB
SL
W
SIL
TC ECMCrankshaft Position Sensor
Engine Coolant
Temperature Sensor
Throttle Position Sensor
Park/Neutral Position Switch
Speed Sensor
Skid Control ECU
Combination Meter
Input Turbine Speed Sensor
(Speed Sensor NT)
Stop Lamp Switch Assy
ATF (Automatic Transmission
Fluid) Temperature SensorShift Solenoid Valve S1
Shift Solenoid Valve S2
Shift Solenoid Valve SLT
MIL
(Malfunction Indicator Lamp)
DLC3
(Data Link Connector 3) Shift Solenoid Valve SB
Shift Solenoid Valve SL NSW
P, R, N, D
SFTU
SFTD Transmission Control Switch
(Transmission Floor Shift Assy)SPT
Kick Down SwitchKD
*1
*1: LHD
ST
Shift Solenoid Valve ST
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–213
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
SYSTEM DIAGRAM
The configuration of the electronic control system in the U341E automatic transaxles is as shown in the fol-
lowing chart.

05KAK–01
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–209
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PART AND SYSTEM NAME LIST
This reference list indicates the part names used in this manual along with their definitions.
Part and system nameDefinition
Toyota HCAC system, Hydrocarbon adsorptive Catalyst
(HCAC) system, HC adsorptive three–way catalystHC adsorptive three–way catalytic converter
Variable Valve Timing sensor, VVT sensorCamshaft position sensor
Variable valve timing system, VVT systemCamshaft timing control system
Camshaft timing oil control valve, Oil control valve OCV,
VVT, VSVCamshaft timing oil control valve
Variable timing and lift, VVTLCamshaft timing and lift control
Crankshaft position sensor ”A”Crankshaft position sensor
Engine speed sensorCrankshaft position sensor
THAIntake air temperature
Knock control moduleEngine knock control module
Knock sensorEngine knock sensor
Mass or volume air flow circuitMass air flow sensor circuit
Vacuum sensorManifold air pressure sensor
Internal control module, Control module, Engine control
ECU, PCMPower train control module
FC idleDeceleration fuel cut
Idle air control valveIdle speed control
VSV for CCV, Canister close valve VSV for canister controlEvaporative emissions canister vent valve
VSV for EVAP, Vacuum switching valve assembly No. 1,
EVAP VAV, Purge VSVEvaporative emissions canister purge valve
VSV for pressure switching valve, Bypass VSVEvaporative emission pressure switching valve
Vapor pressure sensor, EVAP pressure sensor, Evaporative
emission control system pressure sensorFuel tank pressure sensor
Charcoal canisterEvaporative emissions canister
ORVR systemOn–boad refueling vapor recovery system
Intake manifold runner controlIntake manifold tuning system
Intake manifold runner valve, IMRV, IACV (runner valve)Intake manifold tuning valve
Intake control VSVIntake manifold tuning solenoid valve
AFSAir fuel ratio sensor
O2 sensorHeater oxygen sensor
Oxygen sensor pumping current circuitOxygen sensor output signal
Oxygen sensor reference ground circuitOxygen sensor signal ground
Accel position sensorAccelerator pedal position sensor
Throttle actuator control motor, Actuator control motor, Elec-
tronic throttle motor, Throttle control motorElectronic throttle actuator
Electronic throttle control system, Throttle actuator control
systemElectronic throttle control system
Throttle/pedal position sensor, Throttle/pedal position switch,
Throttle position sensor/switchThrottle position sensor
Turbo press sensorTurbocharger pressure sensor
Turbo VSVTurbocharger pressure control solenoid valve
P/S pressure switchPower–steering pressure switch
VSV for ACMActive control engine mount
Speed sensor, Vehicle speed sensor ”A”, Speed sensor for
skid control ECUVehicle speed sensor
ATF temperature sensor, Trans. fluid temp. sensor, ATF
temperature sensor ”A”Transmission fluid temperature sensor
Electronic controlled automatic transmission, ECTElectronically controlled automatic
Intermediate shaft speed sensor ”A”Couter gear speed sensor

05–210– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)Part and system name Definition
Output speed sensorOutput shaft speed sensor
Input speed sensor, Input turbine speed sensor ”A”, Speed
sensor (NT), Turbine speed sensorInput turbine speed sensor
PNP switch, NSWPark/neutral position switch
Pressure control solenoidTransmission pressure control solenoid
Shift solenoidTransmission shift solenoid valve
Transmission control switch, Shift lock control unitShift lock control module
Engine immobilizer system, Immobilizer systemVehicle anti–theft system

05KYC–01
F40034DLC3
12 3 4567 8 12 3 4567 8
9 1011 12131415 16
05–306– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PRE–CHECK
1. DIAGNOSIS SYSTEM
(a) Description
The ECM stores trouble codes when trouble occurs on
the vehicle.
The diagnosis system allows for reading of the trouble
codes from the DLC3. If the CRUISE main indicator light
does not come on after DTC check, it means a malfunc-
tion has occurred in the cruise control system.
Use the intelligent tester II to check and solve the prob-
lem.
(b) Check the DLC3.
The vehicle’s ECM uses ISO 9141–2 (Euro–OBD)/ISO
14230 (M–OBD) for communication protocol. The termi-
nal arrangement of the DLC3 complies with ISO 15031–3
and matches the ISO 9141–2/ISO 14230 format.
Symbols (Terminals No.)Terminal DescriptionConditionSpecified Condition
SIL(7) – SG(5)Bus ”+” lineDuring transmissionPulse generation
CG(4) – Body groundChassis groundAlwaysBelow 1 Ω
SG(5) – Body groundSignal groundAlwaysBelow 1 Ω
BAT(16) – Body groundBattery positiveAlways11 to 14 V
HINT:
If the display shows ”UNABLE TO CONNECT TO VEHICLE” af-
ter connecting the intelligent tester II to the DLC3 and turning
the ignition to the ON position, there is a problem with either the
vehicle or the tool. (Intelligent tester ll only)
If communication is normal when connecting the tool to
another vehicle, inspect the DLC3 on the original vehicle.
If communication is still not possible when connecting the
tool to another vehicle, it suggests the problem is the
tool’s own. In this case, consult Service Department listed
in the tool’s instruction manual.

G31165
E1
Electronically Controlled
Transmission Solenoid
R
E12SLECM
15
LG
4
SL+B
CPU
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–289
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
DTC P2769 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT LOW (SHIFT SOLENOID VALVE SL)
DTC P2770 TORQUE CONVERTER CLUTCH SOLENOID
CIRCUIT HIGH (SHIFT SOLENOID VALVE SL)
CIRCUIT DESCRIPTION
The shift solenoid valve SL is turned ”ON” and ”OFF” by signals from the ECM in order to control the hydraulic
pressure operation, the lock–up relay valve, which then the controls operation of the lock–up clutch.
DTC No.DTC Detection ConditionTrouble Area
P2769ECM detects short in solenoid valve SL circuit (0.1 sec.) when
solenoid valve SL is operated (2–trip detection logic)
Short in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM
P2770ECM detects open in solenoid valve SL circuit (0.1 sec.) when
solenoid valve SL is not operated (2–trip detection logic)
Open in shift solenoid valve SL circuit

Shift solenoid valve SL

ECM
MONITOR DESCRIPTION
Based on the signals from the Throttle Position Sensor, the Airflow Meter and the Crankshaft Position Sen-
sor, the ECM sends a signal to the shift solenoid valve SL to regulate the hydraulic pressure and provide
smoother gearshifts. The shift solenoid valve SL responds to commands from the ECM. The valve controls
the lock–up relay valve to perform the torque–converter lock–up function. If the ECM detects an open or
short circuit for shift solenoid valve SL, it will illuminate the MIL.
WIRING DIAGRAM
05CW7–06