2005 TOYOTA AVENSIS brake

C94397STP
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±817
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1INSPECT STOP LAMP SWITCH ASSY
(a)Check that the stop light comes on when the brake pedal is depressed and goes\
off when the brake
pedal is released.
NGGo to step 4
OK
2INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(STP TERMINAL)
(a)Disconnect the skid control ECU connector.
(b)Measure the voltage between terminal STP of the skid control ECU harness side connector and body ground
when the brake pedal is depressed.
OK:
Voltage: 8 to 14 V
OKREPLACE ABS & TRACTION ACTUATOR ASSY (See page 32±57)
NG
3 CHECK HARNESS AND CONNECTOR(STOP LIGHT SWITCH ± SKID CONTROL ECU)
(a) Check for an open or short circuit in harness and connector between the stop light switch and skid
control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
4 CHECK HARNESS AND CONNECTOR(STOP LIGHT CIRCUIT)
(a)Check for an open or short circuit in harness and connector of the stop light\
circuit (See page 01±32). OK REPLACE STOP LAMP SWITCH ASSY
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR

±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
05±813
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
HINT:
Start the inspection from step 1 if you are using the hand±held tester and\
start from step 2 if you are not using
the hand±held tester.
1READ VALUE OF MASTER CYLINDER PRESSURE SENSOR
(a)Select the DATALIST mode on the hand±held tester.
(b)Check that the brake fluid pressure value of the No.1 master cylinder pressur\
e sensor and No.2 master
cylinder pressure sensor displayed on the hand±held tester changes wh\
en depressing the brake ped-
al.
OK:
Brake fluid pressure value is changing.
OKGo to step 4
NG
2INSPECT STOP LAMP SWITCH ASSY
(a)Check that the stop light comes on when the brake pedal is depressed and goes\
off when the brake pedal is released.
NGREPAIR OR REPLACE HARNESS ORCONNECTOR
OK
3CHECK HARNESS AND CONNECTOR(MASTER CYLINDER PRESSUR SENSOR ± SKID CONTROL ECU)
(a)Check for an open or short circuit in harness and connector between terminal \
of the master cylinder
pressure sensor and skid control ECU (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK

C94397STP
05±814
±
DIAGNOSTICS ABS WITH EBD & BA & TRC & VSC SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4INSPECT SKID CONTROL ECU TERMINAL VOLTAGE(STP TERMINAL)
(a)Disconnect the skid control ECU connector.
(b)Measure the voltage between terminal STP of the skid control ECU harness side connector and body ground
when the brake pedal is depressed.
OK:
Voltage: 8 to 14 V
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE ABS & TRACTION ACTUATOR ASSY(See page 32±57)

±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))05±881
AVENSIS REPAIR MANUAL (RM1018E)
Chapter 3: Off±vehicle Repair
(
: U241E AUTOMATIC TRANSAXLE Repair Manual Pub. No. RM840U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward range or reverse range
1. Front and rear planetary gear
2. U/D planetary gear
3. U/D one±way clutch (F
2)
4. Forward clutch (C
1)
5. U/D brake (B
3)










Vehicle does not move in R range
1. Front and rear planetary gear unit
2. U/D planetary gear
3. Direct clutch (C
2)
4. U/D brake (C
3)
5. 1st & reverse brake (B
2)










No up±shift (1st
2nd)1. No.1 one±way clutch (F1)
2. 2nd brake (B
1)




No up±shift (2nd
3rd)Direct clutch (C2)

No up±shift (3rd
O/D)U/D clutch (C3)

No lock±up or No lock±up offTorque converter clutch40±37
Harsh engagement (N
D)
1. Forward clutch (C1)
2. U/D one±way clutch (F
2)
3. No.1 one±way clutch (F
1)






Harsh engagement (N
R)1. Direct clutch (C2)
2. 1st & reverse brake (B
2)




Harsh engagement (Lock±up)Torque converter clutch40±37
Slip or shudder (Forward position: After warm±up)
1. Torque converter clutch
2. Forward clutch (C
1)
3. Direct clutch (C
2)
4. U/D brake (C
3)
5. No.1 one±way clutch (F
1)
6. U/D one±way clutch (F
2)
40±37









Slip or shudder (R range)1. Direct clutch (C2)
2. 1st & reverse brake (B
2)




Slip or shudder (1st)No.1 one±way clutch (F1)

Slip or shudder (2nd)1. U/D one±way clutch (F2)
2. 2nd brake (B
1)




Slip or shudder (3rd)Direct clutch (C2)

Slip or shudder (O/D)U/D clutch (C3)

No engine braking (1st ± 3rd: D range)U/D brake (B3)

Poor acceleration (All range)1. Torque converter clutch
2. U/D planetary gear40±37

Poor acceleration (O/D)1. U/D clutch (C3)
2. U/D planetary gear



Large shift shock or engine stalls when starting off or stoppingTorque converter clutch40±37

05±868± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
4. DATA LIST
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
of the methods to shorten the work 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 ON.
(e) According to the display on tester, read the ºDATA LISTº.
ItemMeasurement Item/
Display (Range)Normal ConditionDiagnostic Note
STOP LIGHT SWStop light SW Status/
ON or OFF
Brake Pedal is depressed: ON

Brake Pedal is released: OFF

SHIFTActual Gear Position/
1st, 2nd, 3rd, 4th (O/D)Shift lever Range is;

D: 1st, 2nd, 3rd or 4th (O/D)

SPD (NC)Counter Gear Speed
display: 50 r/minD Range is warmed up,4th (O/D);
Same as input shaft speed

LOCK UP SOLLock Up Solenoid Status/
ON or OFF
Lock Up: ON

Except Lock Up: OFF

KICKDOWN SWKick down SW Status/
ON or OFF

Accelerator Pedal is depressed:
ON

Accelerator Pedal is released:
OFF


PNP SW [NSW]PNP SW Status/
ON or OFFShift lever range is;
P or N: ON
Except P or N: OFF
The shift lever range and these
REVERSEPNP SW Status/
ON or OFFShift lever range is;
R: ON
Except R: OFFThe shift lever range and these
values are different, there are fail-
ures of the PNP switch or shift
cable adjustment
DRIVEPNP SW Status/
ON or OFFShift lever range is;
D and 3: ON
Except D and 3: OFFcable adjustment.
SOLENOID (SLT)Shift Solenoid SLT Status/
ON or OFFIG SW ON: ON

AT FLUID TEMP
ATF Temp. Sensor Value/
min.: ±40C (±40F)
max.: 215C (419F)80C (176F)
(After Stall Test)If the value is º±40C (±40F)º or
º215C (419F)º, ATF temp. sen-
sor circuit is opened or shorted.

±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))05±869
AVENSIS REPAIR MANUAL (RM1018E)
5.ACTIVE TEST
HINT:
Performing the ACTIVE TEST using the hand±held tester allows the relay, VSV, actuator and so on to oper-
ate without parts removal. Performing the ACTIVE TEST as the first step of troubleshooting is one of the
method to shorten the labor time.
It is possible to display the DATA LIST during the ACTIVE TEST.
(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 ON.
(e)According to the display on tester, perform the ºACTIVE TESTº.
ItemTest DetailsDiagnostic Note
LINE PRESS UP
[Test Details]
Operate the shift solenoid SLT and raise the line pressure.
[Vehicle Condition]

Vehicle Stopped.

IDL: ON
[Others]
ON: Line pressure up.
OFF: No action (normal operation)
±
LOCK UP
[Test Details]
Control the shift solenoid DSL to set the ATM to the lock±up condition.
[Vehicle Condition]
Vehicle Speed: 60 km/h (37 mph) or more
Possible to check the DSL opera-
tion.
SHIFT
[Test Details]
Operate the shift solenoid valve and set the each shift range by your-
self.
[Vehicle Condition]
Less than 50 km/h (31 mph)
[Others]

Press
button: Shift up

Press  button: Shift down
Possible to check the operation of
the shift solenoid values.
6.PROBLEM SYMPTOM CONFIRMATION
(a)Taking into consideration the results of the customer problem analysis, try to\
reproduce the symptoms of the trouble. If the problem is that the transaxle does not shift up, sh\
ift down, or the shift point is too
high or too low, conduct the following road test referring to the automatic shift sched\
ule and simulate
the problem symptoms.
7.ROAD TEST
NOTICE:
Conduct the test at normal operating ATF temperature 50 to 80
C (122 to 176
F).
(a)D range test Shift into the D range and fully depress the accelerator pedal and check\
the following points:
(1)Check up±shift operation.Check to see that 1
2, 2
3 and 3
O/D up±shift take place, and that the shift points conform
to the automatic shift schedule (See page 03±45).
HINT:

O/D Gear Up±shift Prohibition Control (1. Water temp. is 60
C (140
F) or less. 2. If there is a 10 km/h
(6 mph) difference between the set cruise control speed and vehicle speed.)

O/D Gear Lock±up Prohibition Control (1. Brake pedal is depressed. 2. Water temp. is 60
C (140
F)
or lower)

05±870±
DIAGNOSTICS ELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT](U241E(1AZ±FE))
AVENSIS REPAIR MANUAL (RM1018E)
(2)Check for shift shock and slip. Check for shock and slip at the 1
2, 2
3 and 3
O/D up±shift.
(3)Check for abnormal noise and vibration.
Run in D range lock±up or O/D gear and check for abnormal noise and v\
ibration.
HINT:
The check for the cause of abnormal noise and vibration must be done very t\
horoughly as it could also be
sure to loss of balance in the differential, torque converter, etc. (4)Check kick±down operation.While running in the D range, 2nd, 3rd and O/D gears, check to see that the p\
ossible kick±down
vehicle speed limits for 2
1, 3
2 and O/D
3 kick±downs conform to those indicated in the
automatic shift schedule (See page 03±45).
(5) Check for abnormal shock and slip at kick±down.
(6) Check the lock±up mechanism.

Drive in D range O/D gear, at a steady speed (lock±up ON) of about 60 km/h (37 mph).

Lightly depress the accelerator pedal and check that the engine speed does not change
abruptly.
If there is a big jump in engine speed, there is no lock±up.
(b) S range test Shift to the S range, depress the accelerator pedal and check the follow\
ing points:
Shift operations.

Shifting the shift lever to º+º or º±º changes the shift \
range on the combination meter.
HINT:
Manual shift prohibition control is performed when:

Down±shifting causes engine overrun.

Down±shifting is required continuously, down±shifting to 1st gear may not be performed.
(c) R range test Shift into the R range and fully depress the accelerator pedal and check\
for slipping.
CAUTION:
Before conducting this test, ensure that the test area is free from peop\
le and obstruction.
(d) P range test Stop the vehicle on a grade (more than 5
) and after shifting into the P range, release the parking
brake. Then, check to see that the parking lock pawl holds the vehicle in plac\
e.

D25148
TA CDLC3 12345 768
9 1 0111 21 3 1 514 16
± DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E(1AZ±FE))05±871
AVENSIS REPAIR MANUAL (RM1018E)
8. MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R ranges.
NOTICE:

Do the test at normal operating ATF temperature 50 to 80
C (122 to 176
F).

Do not continuously run this test for longer than 5 seconds.

To ensure safety, do this test in a wide, clear level area which provides good traction.

The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect the hand±held tester to DLC3 or tachome-
ter to terminal TAC of DLC3 with SST.
SST 09843±18030
(3) Fully apply the parking brake.
(4) Keep your left foot pressing firmly on the brake ped-
al.
(5) Start the engine.
(6) Shift into the D range. Press all the way down on the
accelerator pedal with your right foot.
(7) Quickly read the stall speed at this time.
Stall speed: 2,550
150 rpm
(8) Do the same test in the R range.
Stall speed: 2,550
150 rpm
Evaluation:
ProblemPossible cause
(a) Stall speed low in D and R ranges

Engine output may be insufficient

Stator one±way clutch not operating properly
HINT: If more than 600 rpm below the specified value, the torque
converter could be faulty.
(b) Stall speed high in D range

Line pressure too low

Forward clutch slipping

No. 2 one±way clutch not operating properly

U/D clutch slipping
(c) Stall speed high in R range

Line pressure too low

Direct clutch slipping

1st & reverse brake slipping

U/D clutch slipping
(d) Stall speed high in D and R ranges

Line pressure too low

Improper fluid level

U/D one±way clutch not operating properly