2006 TOYOTA RAV4 Service Repair Manual

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Page 945 of 2000

TOYOTA RAV4 2006 Service Repair Manual U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–11
AX
HOW TO PROCEED WITH
TROUBLESHOOTING
HINT:
• The ECM of this system is connected to the CAN and
multiplex communication system.

Page 946 of 2000

TOYOTA RAV4 2006 Service Repair Manual AX–12U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
NEXT
(a) Refer to the ROAD TEST (see page AX-12).
Result
B
A
(a) Refer to the ELECTRONIC CIRCUIT INSPECTION
PROCEDURE (see page IN

Page 947 of 2000

TOYOTA RAV4 2006 Service Repair Manual U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–13
AX
NG
OK
(a) Refer to the HYDRAULIC TEST (see page AX-16).
NG
OK
(a) Refer to the MANUAL SHIFTING TEST (see page AX-
17).
NG
OK
(a) Re

Page 948 of 2000

TOYOTA RAV4 2006 Service Repair Manual AX–14U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
NEXT
NEXT
NEXT
NEXT
19CIRCUIT INSPECTION
20IDENTIFICATION OF PROBLEM
21REPAIR OR REPLACE
22CONFIRMATION TEST
END

Page 949 of 2000

TOYOTA RAV4 2006 Service Repair Manual U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–15
AX
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem
analysis, try to reproduce the symptoms.

U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–15
AX
ROAD TEST
1. PROBLEM SYMPTOM CONFIRMATION
(a) Based on the result of the customer problem
analysis, try to reproduce the symptoms. If the
problem is that the transaxle does not shift up, shift
down, or the shift point is too high or too low,
conduct the following road test referring to the
automatic shift schedule and simulate the problem
symptoms.
2. ROAD TEST
NOTICE:
Perform the test at the normal operating ATF
temperature of 50 to 80
C (122 to 176F).
(a) D position test
Move the shift lever to D and fully depress the
accelerator pedal. Check the following:
(1) Check up-shift operation.
Check that the 1
2, 2 3 and 3 O/D up-
shifts take place at the shift point shown in the
automatic shift schedule (see page SS-55).
HINT:
O/D Gear Up-shift Prohibition Control
• Engine coolant temperature is 55
C (131F)
or less and vehicle speed is at 70 km/h (43
mph) or less.
• ATF temperature is 5
C (41F) or less.
O/D Gear Lock-up Prohibition Control
• Brake pedal is depressed.
• Accelerator pedal is released.
• Engine coolant temperature is 60
C (140F)
or less.
(2) Check for shift shock and slip.
Check for shock and slip at the 1
2, 2 3 and
3
O/D up-shifts.
(3) Check for abnormal noise and vibration.
Check for abnormal noise and vibration when
up-shifting from 1
2, 2 3 and 3 O/D while
driving with the shift lever on D, and check while
driving in the lock-up condition.
HINT:
The check for the cause of abnormal noise and
vibration must be done thoroughly as it could
also be due to loss of balance in the differential,
torque converter clutch, etc.
(4) Check kick-down operation.
While driving the vehicle in the 2nd, 3rd and O/D
gears with the shift lever on D, check that the
possible 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 SS-55).
(5) Check for abnormal shock and slip at kick-down.

Page 950 of 2000

TOYOTA RAV4 2006 Service Repair Manual AX–16U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
(6) Check the lock-up mechanism.
• Drive the vehicl e in the O/D gear with the shift
lever on D. Maintain a steady speed (lock-u

Page 951 of 2000

TOYOTA RAV4 2006 Service Repair Manual U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–17
AX
(2) Check engine braking.
While driving the vehicle with the shift lever on L,
release the accelerator pedal and check the
engine

Page 952 of 2000

TOYOTA RAV4 2006 Service Repair Manual AX–18U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
MECHANICAL SYSTEM TESTS
1. STALL SPEED TEST
HINT:
This test is to check the overall performance of the
engine and transaxle.
NOTIC

AX–18U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
MECHANICAL SYSTEM TESTS
1. STALL SPEED TEST
HINT:
This test is to check the overall performance of the
engine and transaxle.
NOTICE:
• Do not perform the stall speed test longer than 5
seconds.
• To ensure safety, perform this test in an open and
level area that provides good traction.
• The stall speed test should always be performed
with at least 2 people. One person should observe
the condition of the wheels and wheel chocks
while the other is performing the test.
(a) Connect the intelligent tester to the CAN VIM. Then
connect the CAN VIM to the DLC3.
(b) Run the vehicle until the transmission fluid
temperature has reached 50 to 80
C (122 to 176F).
(c) Allow the engine to idle with the air conditioning
OFF.
(d) Chock all 4 wheels.
(e) Set the parking brake and keep the brake pedal
depressed firmly with your left foot.
(f) Move the shift lever to the D position.
(g) Depress the accelerator pedal as much as possible
with your right foot.
(h) Read the engine rpm (stall speed) and release the
accelerator pedal immediately.
Standard value:
2,150 to 2,450 rpm
Evaluation:
NOTICE:
Perform the test at the normal operating ATF
temperature of 50 to 80
C (122 to 176F).
2. SHIFT TIME LAG TEST
HINT:
This test is to check the condition of the direct clutch,
forward clutch, 1st brake and reverse brake.
(a) Connect the intelligent tester to the CAN VIM. Then
connect the CAN VIM to the DLC3.
(b) Run the vehicle until the transmission fluid
temperature has reached 50 to 80
C (122 to 176F).
(c) Allow the engine to idle with the air conditioning
OFF.
Test Result Possible Cause
Stall speed is lower than standard value • Stator one-way clutch is not operating properly
• Torque converter is faulty (stall speed is less than standard value
by 600 rpm or more)
• Engine power may be insufficient
Stall speed is higher than standard value • Line pressure is low
• C1 clutch slipping
• F3 one-way clutch is not operating properly
• F4 one-way clutch is not operating properly

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