2005 TOYOTA AVENSIS sensor

−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −595
AVENSIS Supplement (RM 1045E)
DTC P0766 SHIFT SOLENOID ”D” PERFORMANCE
(SHIFT SOLENOID VALVE S4)
SYSTEM DESCRIPTION
The ECM uses signals from the vehicle speed sensor to detect the actual gear position ( 1st, 2nd, 3rd, 4th
or 5th gear).
Then the ECM compares the actual gear with the shift schedule in the ECM memory to detect mechanical
problems of the shift solenoid valves and valve body.
DTC No.DTC Detecting ConditionTrouble Area
P0766The gear required by the ECM does not match the actual gear
when driving (2 −trip detection logic)
S Shift solenoid valve S4 remains open or closed
S Valve body is blocked
S Shift solenoid valve S4
S Automatic transaxle (clutch, brake or gear etc.)
S ECM
MONITOR DESCRIPTION
The ECM commands gear shifts by turning the shift solenoid valves ”ON/OFF”. According to the input shaft
revolution, intermediate (counter) shaft revolution and output shaft revolution, the ECM detects the actual
gear position ( 1st, 2nd, 3rd, 4th or 5th gear position). When the gear position commanded by the ECM and
the actual gear position are not same, the ECM illuminates the MIL and stores the DTC.
INSPECTION PROCEDURE
HINT:
Performing the ACTIVE TEST using the hand −held tester allows the relay, VSV, actuator and so on to oper-
ate without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one method
to shorten labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(a) Turn the ignition switch off.
(b) Connect the hand −held tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Push the ”ON” button of the hand −held tester.
(e) Select the item ”DIAGNOSIS / OBD/MOBD / ACTIVE TEST / SHIFT”.
(f) According to the display on tester, perform the ”ACTIVE TEST”.
HINT:
While driving, the shift position can be forcibly changed with the hand −held tester.
Comparing the shift position commanded by the ACTIVE TEST with the actual shift position enables you
to confirm the problem (see page 05 −560).
ItemTest DetailsDiagnostic Note
SHIFT
[Test Details]
Operate the shift solenoid valve and set the each shift position by your-
self.
[Vehicle Condition]
Less than 50 km/h (3 1mph)
[Others]
S Press ”
” button: Shift up
S Press ” ” button: Shift down
Possible to check the operation of
the shift solenoid valves.
HINT:
SThis test can be conducted when the vehicle speed is 50 km/h (3 1mph) or less.
SThe shift position commanded by the ECM is shown in the DATA LIST/SHIFT display on the hand −held
tester.
05CVX −03

05−582− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
DTC P0741TORQUE CONVERTER CLUTCH SOLENOID
PERFORMANCE (SHIFT SOLENOID VALVE
DSL)
SYSTEM DESCRIPTION
The ECM uses the signals from the throttle position sensor, Air−flow meter, turbine (input) speed sensor,
intermediate (counter) shaft speed sensor and crankshaft position sensor to monitor the engagement condi-
tion of the lock−up clutch.
Then the ECM compares the engagement condition of the lock−up clutch with the lock−up schedule in the
ECM memory to detect a mechanical problems of the shift solenoid valve DSL, valve body and torque con-
verter clutch.
DTC No.DTC Detection ConditionTrouble Area
P0741
Lock−up does not occur when driving in lock−up range (normal
driving at 80 km/h[50 mph]), or lock−up remains ON in lock−
up OFF range (2−trip detection logic)
SShift solenoid valve DSL remains open or closed
SValve body is blocked
SShift solenoid valve DSL
STorque converter clutch
SAutomatic transaxle (clutch, brake or gear etc.)
SLine pressure is too low
SECM
MONITOR DESCRIPTION
Torque converter lock−up is controlled by the ECM based on speed sensor (NT), speed sensor (NC), engine
rpm, engine load, engine temperature, vehicle speed, transmission temperature, and gear selection. The
ECM determines the lock−up status of the torque converter by comparing the engine rpm (NE) to the input
turbine rpm (NT). The ECM calculates the actual transmission gear by comparing input turbine rpm (NT) to
counter gear rpm (NC). When conditions are appropriate, the ECM requests ”lock−up” by applying control
voltage to shift solenoid DSL. When the DSL is turned on, solenoid DSL applies pressure to the lock−up relay
valve and locks the torque converter clutch.
If the ECM detects no lock−up after lock−up has been requested or if it detects lock−up when it is not re-
quested, the ECM interprets this as a fault in the shift solenoid valve DSL or lock−up system performance.
The ECM will turn on the MIL and store the DTC.
Example:
When any of the following is met, the system judges it as a malfunction.
(a) There is a difference in rotation between before and after torque converters even when the ECM com-
mands lock−up.
(Engine speed is at least 75 rpm greater than input turbine speed.)
(b) There is no difference in rotation between before and after torque converters even when the ECM com-
mands lock−up off.
(The difference between engine speed and input turbine speed is less than 35 rpm.)
05JLJ−01

E65594
Free Pushed in2
3
4 1
G26289
STP(+)
E
13E 12E 11E10E9
ECM:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −58 1
AVENSIS Supplement (RM 1045E)
INSPECTION PROCEDURE
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
method to shorten labor time.
(a) Turn the ignition switch off.
(b) Connect the hand −held tester to the DLC3.
(c) Turn the ignition switch to the ON position.
(d) Push the ”ON” button of the hand −held tester.
(e) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST”.
(f) According to the display on tester, read the ”DATA LIST”.
ItemMeasurement Item/
Range (display)Normal Condition
STOP LIGHT SWStop light SW Status/ ON or OFFS Brake Pedal is depressed: ON
S Brake Pedal is released: OFF
1 INSPECT STOP LAMP SWITCH ASSY
(a) Remove the stop lamp switch assy.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Switch positionTester ConnectionSpecified Condition
Switch pin free1−2Below 1

Switch pin pushed in10k
or higher
Switch pin free3− 410k
or higher
Switch pin pushed inBelow 1

NG REPLACE STOP LAMP SWITCH ASSY
OK
2 CHECK HARNESS AND CONNECTOR(STOP LAMP SWITCH ASSY − ECM)
(a) Install the stop lamp switch assy.
(b) Measure the voltage according to the value(s) in the table
below when the brake pedal is depressed and released.
Standard:
ConditionTester ConnectionSpecified Condition
Brake pedal is depressedE10 −1 9 (STP) −
Body ground1 0to 14V
Brake pedal is releasedBelow 1 V
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)

G31161
THO
E2 BRE12
28 32
7 E1
Electronically Controlled
Transmission Solenoid
E13 O
1
OVECM
E2 THO5V 05−574
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
DTC P0711TRANSMISSION FLUID TEMPERATURE
SENSOR ”A” PERFORMANCE
CIRCUIT DESCRIPTION
The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance
value which is input into the ECM.
DTC No.DTC Detection ConditionTrouble Area
P0711
(A) Both (a) and (b) are detected: (2−trip detection logic)
(a) Intake air and engine coolant temperatures are more than
−10˚C (14_F) at engine start
(b) After normal driving for over 19 min. and 8 km (5 mile) or
more, ATF temp. is less than 10˚C (50_F)
(B) When engine coolant temp. is less than 35˚C (95_F) at
engine start, the ATF temp. is 110˚C (230_F) or more after
17 min. of engine start (2−trip detection logic).
SOpen or short in ATF temperature sensor circuit
STransmission wire (ATF temperature sensor)
SECM
MONITOR DESCRIPTION
The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the
resistance, the ECM determines the ATF temperature and detects an opens or shorts in the ATF temperature
circuit or a fault of the ATF temperature sensor.
After running the vehicle for a certain period, the ATF temperature should increase. If the ATF temperature
is below 10_C (50_F) after running the vehicle for a certain period, the ECM interprets this as a fault, and
turns on the MIL.
When the ATF temperature is 110_C (230_F) or more after 17 minutes of engine cold start, the ECM also
determines this as a fault, turns on the MIL, and stores the DTC.
WIRING DIAGRAM
05JLG−01

−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−575
AVENSIS Supplement (RM1045E)
INSPECTION PROCEDURE
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
method to shorten labor 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 to the ON position.
(e) Push the ”ON” button of the hand −held tester.
(f) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST”.
(g) According to the display on tester, read the ”DATA LIST”.
ItemMeasurement Item/
Range (display)Normal Condition
AT FLUID TEMP
ATF Temp. Sensor Value/ min.: −40 _ C( −40 _ F)
max.: 215 _ C (419 _ F)
Approx. 80 _ C (176 _ F) (After Stall Test)
HINT:
When DTC P0712 is output and hand −held tester output is 150 _C (302 _F), there is a short circuit.
When DTC P0713 is output and hand −held tester output is −40 _C( −40 _F), there is an open circuit.
Measure the resistance between terminal THO1 (THO) and body ground.
Temperature DisplayedMalfunction
− 40 ˚ C( −40 ˚ F)Open circuit
150 ˚C (302 ˚F) or moreShort circuit
HINT:
If a circuit related to the ATF temperature sensor becomes open, P0713 is immediately set (in 0.5 second).
When P0713 is set, P0711 cannot be detected.
It is not necessary to inspect the circuit when P0711 is set.
1 CHECK OTHER DTCS OUTPUT(IN ADDITION TO DTC P07 11 )
(a) Connect the hand −held tester to the DLC3.
(b) Turn the ignition switch to the ON position and push the hand −held tester main switch ON.
(c) Select the item ”DIAGNOSIS / OBD/MOBD / DTC INFO / CURRENT CODES”.
(d) Read the DTCs using the hand −held tester.
Result:
Display (DTC output)Proceed to
Only ”P0711” is outputA
”P0711” and other DTCsB
HINT:
If any other codes besides ”P0711” is output, perform the troubleshooting for those DTCs first.
B GO TO RELEVANT DTC CHART(SEE PAGE 05 −564)
A

− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−571
AVENSIS Supplement (RM1045E)
DTC P0710 TRANSMISSION FLUID TEMPERATURE
SENSOR ”A” CIRCUIT
DTC P0712 TRANSMISSION FLUID TEMPERATURE
SENSOR ”A” CIRCUIT LOW INPUT
DTC P0713 TRANSMISSION FLUID TEMPERATURE
SENSOR ”A” CIRCUIT HIGH INPUT
CIRCUIT DESCRIPTION
The ATF (Automatic Transmission Fluid) temperature sensor converts the fluid temperature into a resistance
value which is input into the ECM.
The ECM applies a voltage to the temperature sensor through ECM terminal THO.
The sensor resistance changes with the transmission fluid temperature. As the temperature becomes high-
er, the sensor resistance decreases.
One terminal of the sensor is grounded so that the sensor resistance decreases and the voltage goes down
as the temperature becomes higher.
The ECM calculates the fluid temperature based on the voltage signal.
DTC No.DTC Detection ConditionTrouble Area
P0710
(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 than156 k

HINT:
Within 0.5 sec., the malfunction switches from (a) to (b) or from
(b) to (a)
SOpen or short in ATF temperature sensor circuit
STransmission wire (ATF temperature sensor)
SECM
P0712ATF temperature sensor resistance is less than 79
for 0.5
sec. or more (1−trip detection logic)SShort in ATF temperature sensor circuit
STransmission wire (ATF temperature sensor)
SECM
P0713
ATF temperature sensor resistance is more than156 k
when
15 minutes or more after the engine start
DTC is detected for 0.5 sec. or more (1−trip detection logic)SOpen in ATF temperature sensor circuit
STransmission wire (ATF temperature sensor)
SECM
MONITOR DESCRIPTION
The automatic transmission fluid (ATF) temperature sensor converts ATF temperature to an electrical resis-
tance value. Based on the resistance, the ECM determines the ATF temperature, and the ECM detects an
opens or shorts in the ATF temperature circuit. If the resistance value of the ATF temperature is less than
79

*1or more than156 k
*2, the ECM interprets this as a fault in the ATF sensor or wiring. The ECM will
turn on the MIL and store the DTC.
*1:150_C (302_F) or more is indicated regardless of the actual ATF temperature.
*2:−40_C(−40_F) is indicated regardless of the actual ATF temperature.
HINT:
The ATF temperature can be checked on the hand−held tester display.
05CVQ−02

G31161
THO
E2 BRE12
28 32
7 E1
Electronically Controlled
Transmission Solenoid
E13 O
1
OVECM
E2 THO5V 05−572
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM
INSPECTION PROCEDURE
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
method to shorten labor 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 to the ON position.
(e) Push the ”ON” button of the hand−held tester.
(f) Select the item ”DIAGNOSIS / OBD/MOBD / DATA LIST”.
(g) According to the display on tester, read the ”DATA LIST”.
ItemMeasurement Item/
Range (display)Normal Condition
AT FLUID TEMP
ATF Temp. Sensor Value/
min.:−40_C(−40_F)
max.: 215_C(419_F)
Approx. 80_C(176_F) (After Stall Test)
HINT:
When DTC P0712 is output and hand−held tester output is150_C (302_F), there is a short circuit.
When DTC P0713 is output and hand−held tester output is−40_C(−40_F), there is an open circuit.
Measure the resistance between terminal THO1(THO) and body ground.
Temperature DisplayedMalfunction
−40˚C(−40˚F)Open circuit
150˚C(302˚F) or moreShort circuit

G26426E2
THO
Transmission Wire Side:
(Connector Front View):
E1
G20668
THO
E2
E 13E 12E 11E10E9
ECM:
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −573
AVENSIS Supplement (RM 1045E)
1 INSPECT TRANSMISSION WIRE(ATF TEMPERATURE SENSOR)
(a) Disconnect t he t r ansm ission wir e c onnect or f r om t he
transaxle.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
1 (THO) − 7 (E2)79
to 156 k

(c) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
1 (THO) − Body ground10k
or higher
7 (E2) − Body ground
NG REPAIR OR REPLACE TRANSMISSION WIRE
(SEE PAGE 40 −1 6)
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE − ECM)
(a) Connect the transmission wire connector to the transaxle.
(b) Disconnect the ECM connectors.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester ConnectionSpecified Condition
E12 − 32 (THO) − E13 − 28 (E2)79
to 156 k

(d) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
E12 − 32 (THO) − Body ground10k
or higher
E13 − 28 (E2) − Body ground
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)