TOYOTA AVENSIS 2005 Service Repair Manual

C95813THOE2
05±1006± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
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 between terminals THO and E2.
OK:
Temperature:
C (
F)Resistance: k

10 (50)6.4
110 (230)0.2
(d) Check the continuity between the wire harness side con-
nectors.
OK:
Standard (Check for a short):
SymbolsSpecified condition
THO ± Body groundNo continuityE2 ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM

D26545
THO E2 BR
30
V E2 E1
ECT Solenoid
E13 O
THO OECM
28
E13
6
1
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)05±1003
AVENSIS REPAIR MANUAL (RM1018E)
DTC P0710 TRANSMISSION FLUID TEMPERATURE
SENSOR CIRCUIT MALFUNCTION
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
Either (a) or (b) is detected for 0.5 sec. or more:
(1 trip detection logic)
(c) Temp. sensor resistance is less than 79

(d) After engine has been operating for 15 min. or
more, resistance at temp. sensor is more than 156 k


Open or short in ATF temp. sensor circuit

Transmission wire (ATF temperature sensor)

ECM
WIRING DIAGRAM
0567Z±06

C54864
THO
E2
C95813THOE2
05±1004± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U341E)
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT TRANSMISSION WIRE(ATF TEMPERATURE SENSOR)
(a) Disconnect the transmission wire connector from the
transaxle.
(b) Measure the resistance between terminals THO and E2.
OK:
Resistance: 79
to 156 k

(c) Check the continuity between the wire harness side con-
nectors.
OK:
Standard (Check for a short):
SymbolsSpecified condition
THO ± Body groundNo continuityE2 ± Body groundNo continuity
NG REPAIR OR REPLACE TRANSMISSION WIRE
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 between terminals THO and E2.
OK:
Resistance: 79
to 156 k

(d) Check the continuity between the wire harness side con-
nectors.
OK:
Standard (Check for a short):
SymbolsSpecified condition
THO ± Body groundNo continuityE2 ± Body groundNo continuity
NG REPAIR OR REPLACE HARNESS OR
CONNECTOR
OK
CHECK AND REPLACE ECM

0567W±10
05±1000±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)
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
3. Stop light switch circuit
4. Engine coolant temp. sensor circuit
5. Throttle position sensor circuit
6. ECM05±1018
05±16
05±16
01±32
Shift point too high or too low
1. Engine coolant temp. sensor circuit
2. Throttle position sensor circuit
3. ECM05±16
05±16
01±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±103501±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±16
05±1003
05±1005 01±32
Harsh engagement (N
D)ECM01±32
Harsh engagement (Lock±up)ECM01±32
Harsh engagement (Any driving range)ECM01±32
Poor acceleration
1. Pattern select switch circuit (ECT SNOW switch)
2. Instrument panel J/B assy (Integration relay)
3. ECM05±1040
01±32
Engine stalls when starting off or stoppingECM01±32
No kick±down1. Kick±down switch circuit
2. ECM05±103301±32
No 2nd start
1. Pattern select switch circuit (ECT SNOW switch)
2. Transmission control switch circuit
3. Park/neutral position switch circuit
4. Instrument panel J/B assy (Integration relay)
5. ECM05±1040
05±1035
05±1024
05±104001±32

±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)05±1001
AVENSIS REPAIR MANUAL (RM1018E)
Chapter 2: On±vehicle Repair
(
: U340E, U341E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM824E)
SymptomSuspect AreaSee page
Vehicle does not move in any forward range and reverse range
1. Manual valve
2. Primary regulator valve
3. Secondary regulator valve
4. Off±vehicle repair matrix chart





±
Vehicle does not move in R range1. Manual valve
2. Off±vehicle repair matrix chart
±
No up±shift (1st
2nd)1. Valve body assy
2. Off±vehicle repair matrix chart

±
No up±shift (2nd
3rd)1. Valve body assy
2. Off±vehicle repair matrix chart

±
No up±shift (3rd
O/D)1. Valve body assy
2. Off±vehicle repair matrix chart

±
No down±shift (O/D
3rd)Valve body assy

No down±shift (3rd
2nd)Valve body assy

No down±shift (2nd
1st)Valve body assy

No lock±up or No lock±up off
1. Lock±up relay valve
2. Solenoid relay valve
3. Solenoid modulator valve
4. Off±vehicle repair matrix chart





±
Harsh engagement (N
D)
1. C1 accumulator
2. Accumulator control valve
3. Off±vehicle repair matrix chart


±
Harsh engagement (N
R)
1. C3 accumulator
2. Accumulator control valve
3. Reverse control valve
4. Off±vehicle repair matrix chart




±
Harsh engagement (Lock±up)
1. Lock±up relay valve
2. Accumulator control valve
3. Off±vehicle repair matrix chart


±
Harsh engagement (1st
2nd)1. B2 accumulator
2. Accumulator control valve



Harsh engagement (2nd
3rd)1. C2 accumulator
2. Accumulator control valve



Harsh engagement (3rd
O/D)
1. B1 accumulator
2. Accumulator control valve
3. 3±4 shift timing valve





Harsh engagement (O/D
3rd)Valve body assy

Harsh engagement (D, 2, L)Coat relay valve

Slip or shudder (Forward and reverse)1. Oil strainer
2. Off±vehicle repair matrix chart40±42
±
No kick±downValve body assy

Poor accelerationSLT damper

05±1002±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U341E)
AVENSIS REPAIR MANUAL (RM1018E)
Chapter 3: Off±vehicle Repair
(
: U340E, U341E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM824E)
SymptomSuspect AreaSee page
Vehicle does not move in any forward range and reverse range
1. Planetary gear unit
2. Forward clutch
3. One±way clutch No.2
4. Reverse Clutch
5. 1st and reverse brake









Vehicle does not move in R range
1. Planetary gear unit
2. Reverse Clutch
3. 1st and reverse brake





No up±shift (1st
2nd)1. 2nd brake
2. One±way clutch No.1



No up±shift (2nd
3rd)Direct clutch

No up±shift (3rd
O/D)O/D and 2nd brake

No lock±up or No lock±up offTorque converter clutch40±37
Harsh engagement (N
D)1. Forward clutch
2. One±way clutch No.2



Harsh engagement (N
R)1. Reverse clutch
2. 1st and reverse brake



Harsh engagement (Lock±up)Torque converter clutch40±37
Harsh engagement (1st
2nd)1. 2nd brake
2. One±way clutch No.1



Harsh engagement (2nd
3rd)Direct clutch

Harsh engagement (3rd
O/D)O/D and 2nd brake

Slip or shudder (Forward range)
1. Torque converter clutch
2. Forward clutch
3. Direct clutch
4. O/D and 2nd brake
5. 2nd brake
6. One±way clutch No.1
7. One±way clutch No.240±37












Slip or shudder (Reverse range)1. Reverse clutch
2. 1st and reverse brake



Slip or shudder (1st)One±way clutch No.2

Slip or shudder (2nd)1. 2nd brake
2. One±way clutch No.1



Slip or shudder (3rd)Direct clutch

Slip or shudder (O/D)O/D and 2nd brake

No engine braking (1st)1st and reverse brake

No engine braking (2nd)O/D and 2nd brake

Poor acceleration (All range)Torque converter clutch40±37
Large shift shock or engine stalls when starting off or stoppingTorque converter clutch40±37

F40038
Power Steering ECU Assy
Power Steering MotorM1
M2 1
2 05±1064
± DIAGNOSTICSELECTRONIC MOTOR POWER STEERING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC C1523/23 Motor Circuit Malfunction
DTC C1524/24 Motor Circuit Malfunction
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C1523/23Short circuit of motor terminal or abnormal voltage or current in
Steering column assy
C1524/24
Short circuit of motor terminal or abnormal voltage or current in
motor circuit.
Steering column assy

Power steering ECU assy
WIRING DIAGRAM
050WR±04

F44304
M2
M1
Connector A
F44858
M1
M2
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1065
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
NOTICE:
When performing the inspection of power steering ECU, ECU must be instal\
led to the vehicle or fully
fixed.
1INSPECT POWER STEERING ECU ASSY
(a)Turn the ignition switch ON.
(b)Turn the steering wheel to the left and right and measure
the voltage between terminals M1 and M2 of power steer-
ing ECU assy connector.
Standard:
Voltage changes when steering wheel is turned.
NGREPLACE POWER STEERING ECU ASSY(See page 50±20)
OK
2INSPECT STEERING COLUMN ASSY(POWER STEERING MOTOR)
(a)Disconnect the connector from the power steering motor.
(b)Measure the resistance between terminals M1 and M2 of power steering motor connector.
Standard:
Resistance: 0.07 to 1

NGREPLACE STEERING COLUMN ASSY (See page 50±9)
OK
REPLACE POWER STEERING ECU ASSY(See page 50±20)

±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
05±1063
AVENSIS REPAIR MANUAL (RM1018E)
DTCC1516/16Calibration of Sensor Zero Point Not
Completed
CIRCUIT DESCRIPTION
This DTC does not indicate trouble. This is detected when the torque sensor \
zero point calibration is not
completed normally.
DTC No.DTC Detecting ConditionTrouble Area
C1516/16The torque sensor zero point calibration is not completed
normally.Sensor zero point calibration failure.
INSPECTION PROCEDURE
1CLEAR DTC(See page 05±1045)
2PERFORM CALIBRATION OF TORQUE SENSOR ZERO POINT(See page 05±1045)
3 RECONFIRM DTC
(a)Check the DTCs (See page 05±1045).
(A): DTC C1516/16 output after attempted 3 time or more.
(B): Normal code output.
HINT:
If the DTC code is output in spite of conducting the steering zero point c\
alibration, replace the steering col-
umn assy.
(A) REPLACE STEERING COLUMN ASSY
(B)
END
0579K±02

05±1062
±
DIAGNOSTICS ELECTRONIC MOTOR POWER STEERING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTCC1515/15Torque Sensor Zero Point Calbration Not Performed
CIRCUIT DESCRIPTION
This DTC does not indicate trouble. Perform calibration of torque sensor zer\
o point to delete DTC.
DTC No.DTC Detecting ConditionTrouble Area
C1515/15When torque sensor zero point calibration is not performed,
this DTC is detected.Sensor zero point calibration is not performed.
INSPECTION PROCEDURE
1RECONFIRM DTC
(a)Check the DTCs (See page 05±1045).
(b) Is DTC excepted for C1515/15 outputed?
YES REPAIR CIRCUIT INDICATED BY OUTPUTCODE
NO
2PERFORM CALIBRATION OF TORQUE SENSOR ZERO POINT(See page 05±1045)
3 RECONFIRM DTC
(a)Check the DTC (See page 05±1045).
(b) Is DTC C1516/16 outputed? NO END
YES
REPAIR CIRCUIT INDICATED BY DTC C1516/16(See page 05±1063)
050YA±04