Page 4545 of 5135
−
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
Page 4546 of 5135
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
Page 4547 of 5135
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.
Stop1st2nd3rd4th5th5th (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.
Page 4548 of 5135
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).
Page 4549 of 5135
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.
Page 4550 of 5135
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.
Page 4551 of 5135
05JL7−01
G23405Transmission Wire
05 −540−
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U 151E)
AVENSIS Supplement (RM 1045E)
MANUAL SHIFTING TEST
1. PERFORM MANUAL SHIFTING TEST
HINT:
S With this test, it can be determined whether the trouble oc-
curs in the electrical circuit or is a mechanical problem in
the transaxle.
S If any abnormalities are found in the following test, the
problem is in the transaxle itself.
(a) Disconnect the transmission wire connector.
(b) Drive with the transmission wire disconnected. Shifting the shift lever to the D position to check whether
the shifting condition changes the table below.
Shift PositionShifting Condition
DNo Shift (Not Change)
HINT:
When driving with the transmission wire disconnected, the gear
position will be as follows:
S When the shift lever is in the D position, the gear is held
in the 4th position.
S When the shift lever is in the R or the P position, the gear
is also in the R or the P position respectively.
(c) Connect the transmission wire connector.
(d) Clear the DTC (see page 05 −557).
Page 4552 of 5135
05JL6−01
G23404
SST SST
Test Plug A:
D Position (CO)Test Plug B:
R Position (C2) 05−538
− DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U151E)
AVENSIS Supplement (RM1045E)
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:
SPerform the test at the normal operation fluid temper-
ature the 50 to 80˚C(122 to176˚F)
SThe line pressure test should always be carried out in
pairs. One technician should observe the conditions
of wheels or wheel stoppers outside the vehicle while
the other is performing the test.
SBe careful to prevent SST hose from interfering with
the exhaust pipe.
SThis check must be conducted after checking and ad-
justing engine.
SPerform under condition that A/C is OFF.
SWhen conducting stall test, do not continue more
than10 seconds.
(1) Warm up the ATF (Automatic Transmission Fluid).
(2) Lift the vehicle up.
(3) Remove the engine under cover.
(4) Connect hand−held tester to DLC3.
(5) Remove the test plug A on the transaxle case front
left side and install the SST.
SST 09992−00095 (09992−00231, 09992−00271)
NOTICE:
There is a difference in installation point between D posi-
tion and R position.
(6) Start the engine.
(7) Using hand−held tester, shift to D position and hold
3rd gear by active test, and measure the line pres-
sure in idling.
Specified line pressure:
ConditionD position
Idling372 to 412 kPa
(3.8 to 4.2 kgf/cm2, 54 to 60 psi)
(8) Turn the ignition switch off.