TOYOTA AVENSIS 2005 Service Repair Manual

−
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

05−576−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
2 CHECK TRANSAXLE FLUID LEVEL
OK:
Automatic transaxle fluid level is correct. NG ADD FLUID
OK
REPLACE TRANSMISSION WIRE (SEE PAGE 40 −1 6)

− 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)

05−566− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT
MALFUNCTION (PRNDL INPUT)
CIRCUIT DESCRIPTION
The park/neutral position switch detects the shift lever position and sends signals to the ECM.
DTC No.DTC Detection ConditionTrouble Area
P0705
(A) Any 2 or more signals of the following are ON simulta-
neously (2−trip detection logic)
SP input signal is ON.
SN input signal is ON.
SR input signal is ON.
SD input signal is ON.
(B) When any of following conditions is met for 2.0 sec. or
more in the S position (2−trip detection logic)
SP input signal is ON.
SN input signal is ON.
SR input signal is ON.
SOpen or short in park/neutral position switch circuit
SPark/neutral position switch
SECM
MONITOR DESCRIPTION
The park/neutral position switch detects the shift lever position and sends a signal to the ECM.
For security, the park/neutral position switch detects the shift lever position so that engine can be started
only when the vehicle is in P or N shift position.
When the park/neutral position switch sends more than one signal at a time from switch positions P, R, N
or D, the ECM interprets this as a fault in the switch. The ECM will turn on the MIL and store the DTC.
05CVP−02

G30839
E9
N
D 6ECM
E10
E9
E10
E13
E10
E10
E10P
R
STA
SPT1
SFTD
SFTU W−L
J5 J/C
R−Y
CC
J/C
J23C A IK220
5
R W−L
R−Y 1 PL
RL
NL
DL
6 75 RBIK1
IK1 1
R−W
J/C
J13J12 BB
B−W
Fuse Block
66
21 ST
B−Y
Center J/B
CG
CDCA
CA87
1 1
I13 Ignition SW
AM2 ST2
AM1IG1 4
3
1G−Y
G−R
B−RDHDHDN DA DB
DA
AM12 13 5IG1Relay GAUGE2 GAUGE1
1 277
5
1Driver Side J/B
11
IE4IP1 3
IG S
SFTD
SFTU
E52 R−WT7 Transmission Control SW
L
B
R
J17
J/CA
A
B−R
11A
Engine Room J/B No.4AM2
2
1
B−G
W−B
J15 J/C
W−B
IP A IK IJ
4B 4A1
1 1 2ALT
1
4D
Battery
B−G
FL MAIN
*1: LHD *2: RHD(*1) R−Y(*1)
J22 2
R
LG−B
B−Y
A IK2
IK2 R−W
9
10
LG−B
B−Y
A J12 J/C
B−W
9
7
1
W−B
(*1) (*2)
1
W−B
(*1)
(*2) B−G
911
7
10
17
20
21
22
Engine Room R/B and J/B No.1
R−Y
(*2)R−Y
(*2) N1
Neutral Start SW
3
R−W
R−W
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−567
AVENSIS Supplement (RM1045E)
WIRING DIAGRAM

C91579
Switch Side:
(Connector Front View):
N1
05−568− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
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) 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 ConditionDiagnostic Note
REVERSEPNP SW Status/
ON or OFFShift lever position is;
R: ON
Except R: OFF
When the shift lever position dis-
played on the hand−held tester dif-
fers from the actual position, ad-
justment of the PNP switch or the
shift cable may be incorrect.
DRIVEPNP SW Status/
ON or OFFShift lever position is;
D and S: ON
Except D and S: OFF


1INSPECT PARK/NEUTRAL POSITION SWITCH ASSY
(a) Disconnect the park/neutral position switch connector.
(b) Measure resistance according to the value(s) in the table
below when the shift lever is moved to each position.
Standard:
Shift PositionTester ConnectionSpecified Condition
P1−3 and 6−9Below1
Except P
10kor higher
R2−3Below1
Except R
10kor higher
N3−5 and 6−9Below1
Except N
10kor higher
D, S, ”+” and ”−”3−7Below1
Except D, S, ”+” and ”−”
10kor higher
NG REPLACE PARK/NEUTRAL POSITION SWITCH
ASSY
OK

G28380
Switch Side:
(Connector Front View):
T7
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−569
AVENSIS Supplement (RM1045E)
2 INSPECT SHIFT LOCK CONTROL UNIT ASSY(TRANSMISSION CONTROL
SWITCH)
(a) Connect the park/neutral position switch connector.
(b) Disconnect the transmission control switch connector of
shift lock control unit assy.
(c) Measure resistance according to the value(s) in the table
below when the shift lever is moved to each position.
Standard:
Shift PositionTester ConnectionSpecified Condition
S, ”+” and ”−”3−7Below1
Except S, ”+” and ”−”
10kor higher
NG REPLACE SHIFT LOCK CONTROL UNIT ASSY
OK

G26425
ONR(+)D(+)
E
13E 12E 11E10E9
SPT 1(+) P(+)
N(+)
ECM:
05 −570−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
3 CHECK HARNESS AND CONNECTOR(PARK/NEUTRAL POSITION SWITCH −
ECM)
(a) Connect the transmission control switch connector of shift
lock control unit assy.
(b) Turn the ignition switch to the ON position, and measure
the voltage according to the value(s) in the table below
when the shift lever is moved to each position.
Standard:
Shift PositionTester connectionSpecified condition
PE9− 6 (P) − Body ground10to 14V
Except P
Below 1 V
NE9 − 7 (N) − Body ground10to 14V
Except N
Below 1 V
RE10 −11 (R)− Body ground10to 14V*
Except R
Below 1 V
D and SE10 −1 0 (D) − Body ground10to 14V
Except D and S
Below 1 V
S, ”+” and ” −”E 10 − 20 (SPT 1) − Body ground10to 14V
Except S, ”+” and ” −”
Below 1 V
HINT:
*: The voltage will drop slightly due to lighting up of the back up
light.
NG REPAIR OR REPLACE HARNESS OR CONNECTOR (SEE PAGE 0 1− 32)
OK
REPLACE ECM (SEE PAGE 10− 29)