2005 TOYOTA AVENSIS diagnostic

05–252– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
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 Ω.
(b) ATF temperature sensor resistance is more than 156 kΩ.
HINT:
Within 0.5 sec., the malfunction switches from (a) to (b) or from
(b) to (a)

Open or short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM
P0712ATF temperature sensor resistance is less than 79 Ω for 0.5
sec. or more (1–trip detection logic)
Short in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM
P0713
ATF temperature sensor resistance is more than 156 kΩ when
15 minutes or more after the engine start
DTC is detected for 0.5 sec. or more (1–trip detection logic)
Open in ATF temperature sensor circuit

Transmission wire (ATF temperature sensor)

ECM
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 Ω
*1 or more than 156 kΩ*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: 150C (302F) or more is indicated regardless of the actual ATF temperature.
*2: –40C (–40F) is indicated regardless of the actual ATF temperature.
HINT:
The ATF temperature can be checked on the Intelligent Tester II display.
05CVQ–06

G31390
THO
E2 BRE12
28 32
6 E1
Electronically Controlled
Transmission Solenoid
E13 O
1
OVECM
E2OT
– DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)05–253
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Using the Intelligent Tester II Data List allows switch, sensor, actuator and other item values to be read with-
out removing any parts. Reading the Data List early in troubleshooting is one way to shorten labor time.
NOTICE:
In the table below, the values listed under ”Normal Condition” are reference values. Do not depend
solely on these reference values when deciding whether a part is faulty or not.
(a) Warm up the engine.
(b) Turn the ignition switch off.
(c) Connect the Intelligent Tester II to the DLC3.
(d) Turn the ignition switch to the ON position.
(e) Turn on the tester.
(f) Select the item ”Enter / Power train / Engine and ECT / Data List”.
(g) Follow the instructions on the tester and read the Data List.
ItemMeasurement Item/
Range (display)Normal Condition
A/T Oil Temperature 1
ATF Temp. Sensor Value/
min.: –40C (–40F)
max.: 215C (419F)
After Stall Test;
Approx. 80C (176F)

Equal to ambient temperature when cold soak
HINT:
When DTC P0712 is output and Intelligent Tester II output is 150C (302F) or more, there is a short circuit.
When DTC P0713 is output and Intelligent Tester II output is –40C (–40F), there is an open circuit.
Measure the resistance between terminal THO (OT) and body ground.
Temperature DisplayedMalfunction
–40
C (–40
F)Open circuit
150
 (302
  Short 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.

C54864
OTE2
Transmission Wire Side:
(Connector Front View):
E1
G33706THO
E2
ECM: E13
E12E10E9
05–254–
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E) (From February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
1 INSPECT TRANSMISSION WIRE(ATF TEMPERATURE SENSOR)
(a) Disconnect the transmission wire connector from the transaxle.
(b) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
1 (OT) – 6 (E2)79 Ω to 156 k Ω
(c) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
1 (OT) – Body ground10 kΩ or higher
6 (E2) – Body ground↑
NG REPAIR OR REPLACE TRANSMISSION WIRE
(See Pub. No. RM1018E, page 40–51)
OK
2 CHECK HARNESS AND CONNECTOR(TRANSMISSION WIRE – ECM)
(a) Connect the transmission wire connector to the transaxle.
(b) Disconnect the ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard:
Tester ConnectionSpecified Condition
E12 – 32 (THO) – E13 – 28 (E2)79 Ω to 156 k Ω
(d) Measure the resistance according to the value(s) in the
table below.
Standard (Check for short):
Tester ConnectionSpecified Condition
E12 – 32 (THO) – Body ground10 kΩ or higher
E13 – 28 (E2) – Body ground↑
NG REPAIR OR REPLACE HARNESS OR
CONNEC TOR ( SEE PAGE 01–32 )
OK
REPLACE ECM

–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–327
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
CRUISE MAIN INDICATOR LIGHT CIRCUIT
CIRCUIT DESCRIPTION
The ECM detects a cruise control switch signal and sends it to the combination m\
eter via BEAN. Then
the CRUISE main indicator light comes on.
The CRUISE main indicator light circuit uses BEAN for communication. If there are any ma\
lfunctions
in this circuit, check for DTCs in the multiplex communication system.
INSPECTION PROCEDURE
1 READ VALUE ON INTELLIGENT TESTER II
(a) Connect the intelligent tester II to the DLC3.
(b) Turn the ignition switch to the ON position and turn the intelligent test\
er II main switch on.
(c) Select the item below in the ”DATA LIST”, and read the display on the intelligent tester II.
CC (ECM):
ItemMeasurement Item /
Display (Range)Normal ConditionDiagnostic Note
CCS Indicator M–CPUCruise indicator signal (Main CPU) / ON or OFFON : ”CRUISE” ON
OFF : ”CRUISE” OFF–
CCS Indicator S–CPUCruise indicator signal (Sub CPU) / ON or OFFON : ”CRUISE” ON
OFF : ”CRUISE” OFF–
OK:
When the cruise control main switch is operated, the display changes as show\
n above.
NG REPLACE ECM(SEE PUB. NO. RM1045E, PAGE 10–29)
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMP TOMS TABLE
( SEE PAGE 05–316 )
05KYG–01

056HK–07
05–316–
DIAGNOSTICS CRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
PROBLEM SYMPTOMS TABLE
If a normal system code is displayed during the DTC check but the problem still occurs, check the circuits
for each problem symptom in the order given in the table below and proceed \
to the relevant troubleshooting
page.
HINT:
Inspect the ”Fuse” and ”Relay” before confirming the suspected area\
s as shown in the chart below.
Inspect each malfunction circuit in numerical order for the correspondin\
g symptom.
SymptomSuspected AreaSee Page
Main switch cannot be turned ON.
(Cruise indicator light in combination meter does not come on.)
1. Cruise control switch circuit
2. CRUISE main indicator light circuit
3. ECM
4. Combination meter assy05–322
05–327 *2
*1
Vehicle speed setting cannot be done.
(Although indicator light in combination meter comes on when the
main switch is turned ON, it goes off when vehicle speed is set.)1. Cruise control switch circuit
2. ECM05–322*2
Setting cannot be done.
(Indicator light in combination meter comes on when the main
switch is turned ON and it remains ON while setting.)
1. Cruise control switch circuit
2. Stop lamp switch circuit
3. Park/Neutral position switch circuit
4. Combination meter system
5. ECM05–322
05–318*2
*1
*2
While the vehicle is driven with cruise control, the set control is
cancelled.
(Indicator light and CRUISE remain ON.)
1. Cruise control switch circuit
2. Vehicle speed sensor circuit
3. Stop lamp switch circuit
4. CRUISE main indicator light circuit
5. Park/Neutral position switch circuit
6. ECM
7. Combination meter assy05–322
05–317
05–318
05–327*2
*2
*1
Hunting
(Speed is not constant.)1. Vehicle speed sensor circuit
2. ECM05–317
*2
Setting cannot be cancelled.
(When Coast, Acceleration, Resume, Set speed change and Con-
trol switch are operated.)1. Cruise control switch circuit
2. ECM05–322*2
DTC is not output, or is output when should not be.1. Diagnosis circuit05–328
CRUISE main indicator light does not come on.
1. Cruise control switch circuit
2. CRUISE main indicator light circuit
3. ECM
4. Combination meter assy05–322
05–327*2
*1
*1: See Pub. No. RM1018E
*2: See Pub. No. RM1045E

05KYD–01
I33809
E13 E12 E11E10E9
– DIAGNOSTICSCRUISE CONTROL SYSTEM (2AZ–FSE)(From
February, 2004)05–315
AVENSIS REPAIR MANUAL SUPPLEMENT
(RM1098E)
TERMINALS OF ECM
Symbols (Terminals No.)Wiring ColorTerminal DescriptionConditionSpecified Condition
TC (E9–20) – E1 (E11–1)W–L – BRDTC input signalIgnition switch ON → Connect ter-
minals TC and CG of DLC310 to 14 V →
Below 2 V
ST1– (E10–12) – E1 (E11–1)G–W – BRCruise cancel input
signalIgnition switch ON, depress brake
pedal → release brake pedalBelow 1 V →
10 to 14 V
STP (E10–19) – E1 (E11–1)G–W – BRStop lamp switch
input signalIgnition switch ON, depress brake
pedal → release brake pedal10 to 14 V →
Below 1 V
CCS (E10–24) – E1 (E11–1)W – BRCruise control main
switch input signal
Ignition switch ON
Cancel switch held ON
SET/COAST switch held ON
RES/ACC switch held ON
MAIN switch held ON10 to 14 V
6.6 to 10.1 V
4.5 to 7.1 V
2.3 to 4 V
Below 1 V