TOYOTA AVENSIS 2005 Service Repair Manual

3 2 145678
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DLC33 2 145678
910111213141516
DLC33 2 145678
910111213141516
DLC3
A04550
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−555
AVENSIS Supplement (RM1045E)
SFreeze frame data:
The freeze frame data records the engine conditions (fuel
system, calculated load, engine coolant temperature, fuel
trim, engine speed, vehicle speed, etc.) when a malfunc-
tion is detected. When troubleshooting, freeze frame data
can help determine if the vehicle was running or stopped,
if the engine was warmed up or not, if the air−fuel ratio
was lean or rich, and other data from the time the malfunc-
tion occurred.
3. CHECK DLC3.
(a) The vehicle’s ECM uses the ISO 9141−2 (Euro−OBD)/
ISO14230(M−OBD) communication protocol. The termi-
nal arrangement of the DLC3 complies with ISO
15031−03 and matches the ISO 9141−2/ ISO14230 for-
mat.
SymbolTerminal No.NameReference TerminalResultCondition
SIL7Bus ”+” line5−Signal groundPulse generationDuring transmission
CG4Chassis groundBody ground1
or lessAlways
SG5Signal groundBody ground1
or lessAlways
BAT16Battery positiveBody ground9to14VAlways
HINT:
If your display shows ”UNABLE TO CONNECT TO VEHICLE”
when you have connected the cable of hand−held tester to the
DLC3, turned the ignition switch to the ON position and oper-
ated the hand−held tester, there is a problem on the vehicle side
or tool side.
SIf communication is normal when the tool is connected to
another vehicle, inspect DLC3 on the original vehicle.
SIf communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool’s instruction manual.
4. INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Battery Voltage:11to14V
If the voltage is below11V, recharge the battery before pro-
ceeding.

05−556−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
5. CHECK CHK ENG (MIL)
(a) The CHK ENG (MIL) comes on when the ignition switch
is turned to ON position and the engine is not running.
HINT:
If the CHK ENG (MIL) is not illuminated, troubleshoot the CHK
ENG (MIL) circuit (see page 05 −25 1).
( 1 ) When the engine is started, the CHK ENG (MIL)
should go off. If the lamp remains on, it means that
the diagnosis system has detected a malfunction or
abnormality in the system.

056IN−05
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −545
AVENSIS Supplement (RM 1045E)
PROBLEM SYMPTOMS TABLE
HINT:
If a normal code is displayed during the diagnostic trouble code check although the trouble still occurs, check
the electrical circuits for each symptom in the order given in the charts on the following pages and proceed
to the page given for troubleshooting.
The Matrix Chart is divided into 2 chapters.
1. Chapter 1: Electronic Circuit Matrix Chart
S Refer to the table below when the trouble cause is considered to be electrical.
S If the instruction ”Proceed to next circuit inspection shown on matrix chart” is given in the flow chart
of each circuit, proceed to the circuit with the next highest number in the table to continue the check.
S If the trouble still occurs even though there are no abnormalities in any of the other circuits, check and
replace the ECM.
HINT:
* 1 : When the circuit on which mark * 1 is attached is a malfunction, DTC could be output (see page 05 −564).
*2: LHD
SymptomSuspect AreaSee page
No down −shift
(A particular gear, from 1st to 4th gear, is not down −shifted)
1. Shift solenoid valve (SL 1) circuit*1
2. Shift solenoid valve (SL2) circuit*1
3. Shift solenoid valve (SL3) circuit*1
4. Shift solenoid valve (SR) circuit*1
5. ECM
05 −589
05 −60 1
05 −61 0
05 −598
0 1− 32
No down −shift (5th
4th)
1. Park/neutral position switch circuit *1
2. Shift solenoid valve (S4) circuit*1
3. ECM
05 −566
05 −595
0 1− 32
No up −shift
(A particular gear, from 1st to 4th gear, is not up −shifted)1. Shift solenoid valve (SL 1) circuit*1
2. Shift solenoid valve (SL2) circuit*1
3. ECM
05 −589
05 −60 1
0 1− 32
No up −shift (4th
5th)
1. Park/neutral position switch circuit *1
2. Shift solenoid valve (S4) circuit*1
3. ECM
05 −566
05 −595
0 1− 32
No lock −up
1. Shift solenoid valve (DSL) circuit*1
2. Stop light switch circuit*1
3. Engine coolant temp. sensor circuit*1
4. ECM
05 −582
05 −580
05 −31
0 1− 32
No lock −up off1. Shift solenoid valve (DSL) circuit*1
2. ECM
05 −582
0 1− 32
Shift point too high or too low
1. Throttle position sensor circuit*1
2. Shift solenoid valve (SLT) circuit*1
3. ECM
05 −31
05 −622
0 1− 32
Up −shift to 5th from 4th while engine is cold1. Engine coolant temp. sensor circuit*1
2. ECM
05 −31
0 1− 32
No gear change by shifting into ”+” or ” −” while the shift lever is in
the S position1 . Transmission control switch circuit
2. ECM05 −625
0 1− 32
Harsh engagement (N
D)1. Shift solenoid valve (SL 1) circuit*1
2. ECM
05 −589
0 1− 32
Harsh engagement (Lock −up)1. Shift solenoid valve (SL2) circuit*1
2. ECM
05 −60 1
0 1− 32
Harsh engagement (Any driving position)1. Shift solenoid valve (SLT) circuit*1
2. ECM
05 −622
0 1− 32
Poor acceleration1. Shift solenoid valve (SLT) circuit*1
2. ECM
05 −622
0 1− 32

05−546−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
No kick
−down
1. Kick− down switch circuit *2
2. ECM
05−634
0 1− 32
Engine stalls when starting off or stopping1. Shift solenoid valve (DSL) circuit*1
2. ECM
05 −582
0 1− 32
ECT SNOW (ECTS) does not operate
1. Shift solenoid valve (SLT) circuit*1
2. Pattern select (SNOW/ECTS) switch circuit
3. ECM
05 −622
05 −630
0 1− 32
Malfunction in shifting
1. Park/neutral position switch circuit *1
2. Transmission control switch circuit
3. ECM
05 −566
05 −625
0 1− 32

−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)05 −547
AVENSIS Supplement (RM 1045E)
2. Chapter 2: On −Vehicle Repair and Off −Vehicle Repair
( L :U 151E, U 151F AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM 102 1U)
( L 1: Refer to Repair Manual RM 1018E)
SymptomSuspect AreaSee page
Vehicle does not move in forward position and in reverse positions
1. Valve body assy
2. U/D brake (B
3)
3. Torque converter clutch
40 −1 9
L
L 1
Vehicle does not move in R position
1. Valve body assy
2. Reverse clutch (C
2)
3. 1st & reverse brake (B
2)
40 −1 9
L
L
No up −shift ( 1st
2nd)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No up −shift (2nd
3rd)1. Valve body assy
2. Direct and O/D clutch (C
0)
40 −1 9
L
No up −shift (3rd
4th)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No up −shift (4th
5th)1. Valve body assy
2. U/D clutch (C
3)
40 −1 9
L
No down −shift (5th
4th)Valve body assy40−1 9
No down −shift (4th
3rd)Valve body assy40−1 9
No down −shift (3rd
2nd)Valve body assy40−1 9
No down −shift (2nd
1st)Valve body assy40 −1 9
No lock −up or No lock −up off1. Valve body assy
2. Torque converter clutch40 −1 9
L 1
Harsh engagement (N
D)
1. Valve body assy
2. C
1accumulator
3. Forward clutch (C
1)
4. One −way clutch No. 1(F
1)
5. U/D one −way clutch (F
2)
40 −1 9
L
L
L
L
Harsh engagement (Lock −up)1. Valve body assy
2. Torque converter clutch40 −1 9
L 1
Harsh engagement (N
R)
1. Valve body assy
2. C
2accumulator
3. Reverse clutch (C
2)
4. 1st & reverse brake (B
2)
40 −1 9
L
L
L
Harsh engagement ( 1st
2nd
3rd
4th
5th)Valve body assy40−1 9
Harsh engagement ( 1st
2nd)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
Harsh engagement (2nd
3rd)
1. Valve body assy
2. C
0accumulator
3. Direct and O/D clutch (C
0)
40 −1 9
L
L
Harsh engagement (3rd
4th)1. Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
Harsh engagement (4th
5th)
1. Valve body assy
2. C
3accumulator
3. U/D clutch (C
3)
40 −1 9
L
L
Harsh engagement (5th
4th)1. Valve body assy
2. B
3accumulator
40 −1 9
L

05−548−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
Slip or shudder (Forward and reverse: After warm
−up)
1. Valve body assy
2. Oil strainer
3. Direct and O/D clutch (C
0)
4. Forward clutch (C
1)
5. U/D clutch (C
3)
6. 2nd & O/D brake (B
1)
7. U/D brake (B
3)
8. One −way clutch No. 1(F
1)
9. U/D one −way clutch (F
2)
1 0.Torque converter clutch
40 −1 9
40 −1 9
L
L
L
L
L
L
L
L 1
Slip or shudder (Particular position: Just after engine starts)Torque converter clutchL1
Slip or shudder (R position)1. Reverse clutch (C2)
2. 1st & reverse brake (B
2)
L
L
Slip or shudder ( 1st)
1. Forward clutch (C1)
2. One −way clutch No. 1(F
1)
3. U/D one −way clutch (F
2)
L
L
Slip or shudder (2nd)2nd & O/D brake (B1)L
Slip or shudder (3rd)Direct and O/D clutch (C0)L
Slip or shudder (4th)2nd & O/D brake (B1)L
Slip or shudder (5th)U/D clutch (C3)L
No engine braking ( 1st 4th: D position)U/D brake (B3)L
No engine braking ( 1st: L ( 1) position)1. Valve body assy
2. 1st & reverse brake (B
2)
40 −1 9
L
No engine braking (2nd: 2 position)1 . Valve body assy
2. 2nd & O/D brake (B
1)
40 −1 9
L
No engine braking (3rd: 3 position)U/D brake (B3)L
Poor acceleration (All positions)Torque converter clutchL 1
Poor acceleration (5th)1. U/D clutch (C3)
2. U/D planetary gear unitL
L
Engine stalls when starting off or stoppingTorque converter clutchL 1
No kick −downValve body assy40 −1 9

05JL9−01
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−543
AVENSIS Supplement (RM1045E)
MONITOR DRIVE PATTERN
1. MONITOR DRIVE PATTERN FOR ECT TEST
(a) Perform this drive pattern as one method to simulate the detection conditions of the ECT malfunctions.
(The DTCs may not be detected due the actual driving conditions. And some codes may not be de-
tected through this drive pattern).
HINT:
Preparation for driving
SWarm up the engine sufficiently. (Engine coolant temperature is 60˚C(140˚F) or higher)
SDrive the vehicle when the atmospheric temperature is−10˚C(14˚F) or higher. (Malfunction is not
detected when the atmospheric temperature is−10˚C(14˚F) or less)
Driving note
SDrive the vehicle through all gears.
Stop
1st
2nd
3rd
4th
5th
5th (lock−up ON).
SPerform engine brake test in the S position.
While driving in the 5(S) position and 5th gear lock−up, shift into the ”−” position and down−shift from
5th to 4th, 4th to 3rd, 3rd to 2nd, 2nd to1st.
Check that the engine brake performs properly whenever down−shift takes place.
SRepeat the above driving pattern three times or more.
NOTICE:
SWhen using the hand−held tester, monitor status can be found in the ”DIAGNOSIS / OBD/MOBD
/ DATA LIST”.
SIn the event that the drive pattern must be interrupted (possibly due to traffic conditions or other
factors) the drive pattern can be resumed and, in most cases, the monitor can be completed.
CAUTION:
Perform this drive pattern on a level road as much as possible and strictly observe the posted speed
limits and traffic laws while driving.

G31593
Warmed up
sufficiently
Approx.100 km/h
(62 mph)
Vehicle Speed
Approx. 80 km/h
(50 mph)
0
Normal acceleration
through all the gears from1st to 5th
Lock−up ON
Vehicle Speed
Stop
(Idling)
Maintain a constant speed or gradual acceleration (with the throttle open)
for 3 minutes or more.
*1 05−544
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
HINT:
*1: Drive at such a speed in the uppermost gear, to engage lock−up. The vehicle can be driven at a speed
lower than that in the above diagram under the lock−up condition.
NOTICE:
It is necessary to drive the vehicle for approximately 30 minutes to detect DTC P0711(ATF tempera-
ture sensor malfunction).

05JL8−01
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)05−541
AVENSIS Supplement (RM1045E)
INITIALIZATION
1. RESET MEMORY
CAUTION:
Perform the RESET MEMORY (AT initialization) when replacing the automatic transaxle assy, engine
assy or ECM.
NOTICE:
Hand−held tester only
HINT:
The ECM memorizes the condition that the ECT controls the automatic transaxle assy and engine assy ac-
cording to those characteristics. Therefore, when the automatic transaxle assy, engine assy, or ECM has
been replaced, it is necessary to reset the memory so that the ECM can memorize the new information.
Reset procedure is as follows.
(a) Turn the ignition switch off.
(b) Connect the hand−held tester to the DLC3.
(c) Turn the ignition switch to the ON position and push the hand−held tester main switch on.
(d) Select the item ”DIAGNOSIS / OBD/MOBD”.
(e) Perform the reset memory procedure from the ENGINE menu.

G23367
Tester menu flow:
05
−542
−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
CAUTION:
After performing the RESET MEMORY, be sure to perform the ROAD TEST (see page 05 −534) de-
scribed earlier.
HINT:
The ECM is learned by performing the ROAD TEST.