engine TOYOTA RAV4 2006 Service Repair Manual

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(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-up
ON).
• Lightly depress the accelerator pedal and
check that the engine speed does not change
abruptly.
HINT:
• There is no lock-up function in the 1st and
2nd gear.
• If there is a sudden increase in engine speed,
there is no lock-up.
(b) 3 position test
Move the shift lever to 3 and fully depress the
accelerator pedal. Check the following:
(1) Check up-shift operation.
Check that the 1
2 and 2 3 up-shifts take
place and that the shift point conforms to the
automatic shift schedule (see page SS-55).
(2) Check engine braking.
While driving the vehicle in the 3rd gear with the
shift lever on 3, release the accelerator pedal
and check the engine braking effect.
(3) Check for abnormal noises during acceleration
and deceleration, and for shock at up-shift and
down-shift.
(c) 2 position test
Move the shift lever to 2 and fully depress the
accelerator pedal. Check the following:
(1) Check up-shift operation.
Check that the 1
2 up-shift takes place and
that the shift point conforms to the automatic
shift schedule (see page SS-55).
HINT:
There is no O/D up-shift and lock-up when the
shift lever is on 2.
(2) Check engine braking.
While driving the vehicle in the 2nd gear with the
shift lever on 2, release the accelerator pedal
and check the engine braking effect.
(3) Check for abnormal noises during acceleration
and deceleration, and for shock at up-shift and
down-shift.
(d) L position test
Move the shift lever to L and fully depress the
accelerator pedal. Check the following:
(1) Check that there is no up-shift.
While driving the vehicle with the shift lever on L,
check that there is no up-shift to 2nd gear.
HINT:
There is no lock-up in L.

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(2) Check engine braking.
While driving the vehicle with the shift lever on L,
release the accelerator pedal and check the
engine braking effect.
(3) Check for abnormal noises during acceleration
and deceleration.
(e) R position test
Move the shift lever to R and lightly depress the
accelerator pedal. Check that the vehicle moves
backward without any abnormal noise or vibration.
CAUTION:
Before conducting this test, ensure that no
people or obstacles are in the test area.
(f) P position test
Stop the vehicle on an incline (more than 5
). Then
move the shift lever to P and release the parking
brake. Check that the parking lock pawl holds the
vehicle in place.

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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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(d) Set the parking brake and keep the brake pedal
depressed firmly.
(e) Check the D range time lag.
(1) Move the shift lever to N and wait for 1 minute.
(2) Move the shift lever to D and measure the time
until the shock is felt.
(3) Repeat the 2 procedures above 3 times, and
calculate the average time of the 3 tests.
(f) Check the R range time lag.
(1) Move the shift lever to N and wait for 1 minute.
(2) Move the shift lever to R and measure the time
until the shock is felt.
(3) Repeat the 2 procedures above 3 times, and
calculate the average time of the 3 tests.
Standard value:
D range time lag is less than 1.2 seconds
R range time lag is less than 1.5 seconds
Evaluation:
HYDRAULIC TEST
1. MEASURE LINE PRESSURE
NOTICE:
• Perform the test at the normal operating ATF
temperature: 50 to 80
C (122 to 176F).
• The line pressure test should always be
performed with at least 2 people. One person
should observe the condition of the wheels or
wheel chocks while the other is performing the
test.
• Be careful to prevent SST's hose from interfering
with the exhaust pipe.
• This test must be performed after checking and
adjusting the engine.
• Perform the test with the A/C OFF.
• When conducting the stall test, do not continue
for more than 10 seconds.
(a) Warm up the ATF.
(b) Remove the test plug on the transaxle case center
right side and connect SST.
SST 09992-00095 (09992-00231, 09992-00271)
(c) Fully apply the parking brake and chock the 4
wheels.
(d) Start the engine and check the idling speed.
(e) Keep your left foot firmly on the brake pedal and
move the shift lever to D.
(f) Measure the line pressure when the engine is idling.
Test Result Possible Cause
D range time lag exceeds standard value • Line pressure is low
• C1 clutch is worn
• F3 one-way clutch is not operating properly
• F4 one-way clutch is not operating properly
R range time lag exceeds standard value • Line pressure is low
• C3 clutch is worn
• B4 brake is worn
• F1 one-way clutch is not operating properly
D025472E01

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(g) Depress the accelerator pedal as much as possible
with your right foot. Quickly read the highest line
pressure reading when the engine speed reaches
stall speed.
(h) Perform the measure line pressure test again with
the shift lever on R.
Specified line pressure:
Evaluation:
Condition Shift Lever on D Shift Lever on R
Idling 372 to 412 kPa
(3.8 to 4.2 kgf/cm
2, 54 to 60 psi)672 to 742 kPa
(6.9 to 7.6 kgf/cm2, 97 to 108 psi)
Stall 931 to 1,031 kPa
(9.5 to 10.5 kgf/cm
2, 135 to 150 psi)1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm2, 256 to 285 psi)
Problem Possible Cause
Measured values at all positions are higher than specified • Shift solenoid valve SLT defective
• Regulator valve defective
Measured values at all positions are lower than specified • Shift solenoid valve SLT defective
• Regulator valve defective
• Oil pump defective
• U/D (underdrive) direct clutch defective
Pressure is low when shift lever is on D only • D position circuit fluid leak
• Forward clutch defective
Pressure is low when shift lever is on R only • R position circuit fluid leak
• Direct clutch defective
• 1st and reverse brake defective

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INITIALIZATION
1. RESET MEMORY
NOTICE:
• Perform the RESET MEMORY procedures (A/T
initialization) when replacing the automatic
transaxle assembly, engine assembly or ECM.
• RESET MEMORY can be performed only with the
intelligent tester.
HINT:
The ECM memorizes the vehicle conditions when the
ECT controls the automatic transaxle assembly and
engine assembly. Therefore, when the automatic
transaxle assembly, engine assembly, or ECM has been
replaced, it is necessary to reset the memory so that the
ECM can memorize the new information.
The reset procedures are as follows.
(a) Turn the ignition switch OFF.
(b) Connect the intelligent tester to the CAN VIM. Then
connect the CAN VIM to the DLC3.
(c) Turn the ignition switch ON and turn the tester ON.
(d) Enter the following menus: DIAGNOSIS /
ENHANCED OBD II.
(e) Perform the reset memory procedures from the
Engine menu.
CAUTION:
After performing the RESET MEMORY
procedures, be sure to perform the ROAD TEST
(see page AX-12) as described earlier.
HINT:
The ECM learns through the ROAD TEST.

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MONITOR DRIVE PATTERN
1. TEST MONITOR DRIVE PATTERN FOR ECT
CAUTION:
Perform this drive pattern on a level surface and
strictly observe the posted speed limits and traffic
laws while driving.
HINT:
Performing this drive pattern is one method to simulate
the ECT's malfunction detection conditions.
The DTCs may not be detected through ordinary,
everyday driving. Also, DTCs may not be detected
through this drive pattern.
(a) Preparation for driving
(1) Warm up the engine sufficiently (engine coolant
temperature is 60
C (140F) or higher).
(2) Drive the vehicle when the atmospheric
temperature is -10
C (14F) or higher.
Malfunction is not detected when the
atmospheric temperature is less than -10
C
(14
F).
(b) Drive pattern
(1) Drive the vehicle through all the gears.
St o p
1st 2nd 3rd O/D O/D (lock-up
ON).
(2) Repeat the above drive pattern 3 times or more.
NOTICE:
• When using the intelligent tester, the
monitor status can be found in
"ENHANCED OBD II / DATA LIST" or under
"CARB OBD II".
• In the event that the drive pattern must be
interrupted (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.

AX–26U140F AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
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PROBLEM SYMPTOMS TABLE
HINT:
• Use the table below to help determine the cause of the
problem symptom. The potential causes of the symptoms
are listed in order of probability in the "Suspected area"
column of the table. Check each symptom by checking the
suspected areas in the order they are listed. Replace parts
as necessary.
• The Matrix Chart is divided into 2 chapters. When
troubleshooting, check Chapter 1 first. If instructions are
given in Chapter 1 to proceed to 2, proceed as instructed.
• If the instruction "Proceed to next circuit inspection shown
in problem symptoms table" is given in the flowchart for
each circuit, proceed to the next suspected area in the
table.
• If the problem still occurs even though there are no
malfunctions in any of the circuits, check the ECM and
replace it if necessary.
CHAPTER 1: ELECTRICAL CIRCUIT MATRIX CHART
HINT:
*: When the circuit is defective, a DTC may be output.
CHAPTER 2: ON-VEHICLE REPAIR AND OFF-VEHICLE REPAIR
Symptom Suspected area See page
No up-shift (1st -> 2nd) ECMIN-37
No up-shift (2nd -> 3rd) ECMIN-37
No up-shift (3rd -> O/D)1. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
No down-shift (O/D -> 3rd) ECMIN-37
No down-shift (3rd -> 2nd) ECMIN-37
No down-shift (2nd -> 1st) ECMIN-37
No lock-up or no lock-up off ECMIN-37
Shift point too high or too low ECMIN-37
Up-shift to O/D from 3rd while shift lever is on 31. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
Up-shift to O/D from 3rd while engine is cold1. Engine coolant temp. sensor circuit*ES-51
2. ECMIN-37
Harsh engagement (N -> D) ECMIN-37
Harsh engagement (lock-up) ECMIN-37
Harsh engagement (any driving position) ECMIN-37
Poor acceleration ECMIN-37
Engine stalls when starting off or stopping ECMIN-37
Malfunction in shifting1. Park/Neutral position switch circuit*AX-39
2. ECMIN-37
Symptom Suspected area See page
Vehicle does not move in all positions other than P and
N1. Manual valveAX-155
2. Primary regulator valveAX-155
3. Front and rear planetary gearAX-155
4. U/D planetary gearAX-155
5. F2 U/D one-way clutchAX-155
6. C1 forward clutchAX-155
7. B3 U/D brakeAX-155

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Vehicle does not move with shift lever on R1. Front and rear planetary gearAX-155
2. U/D planetary gearAX-155
3. C2 direct clutchAX-155
4. C3 U/D brakeAX-155
5. B2 1st and reverse brakeAX-155
No up-shift (1st -> 2nd)1. Valve body assemblyAX-118
2. F1 No. 1 one-way clutchAX-155
3. B1 2nd brakeAX-155
No up-shift (2nd -> 3rd)1. Valve body assemblyAX-118
2. C2 direct clutchAX-155
No up-shift (3rd -> O/D)1. 3-4 shift valveAX-155
2. C3 U/D clutchAX-155
No down-shift (O/D -> 3rd) 3-4 shift valveAX-155
No down-shift (3rd -> 2nd) Valve body assemblyAX-118
No down-shift (2nd -> 1st) Valve body assemblyAX-118
No lock-up or no lock-up off1. Lock-up relay valveAX-155
2. Torque converter clutchAX-153
Harsh engagement (N -> D)1. C1 accumulatorAX-155
2. Valve body assemblyAX-118
3. C1 forward clutchAX-155
4. F2 U/D one-way clutchAX-155
5. F1 No. 1 one-way clutchAX-155
Harsh engagement (N -> R)1. Valve body assemblyAX-118
2. C2 direct clutchAX-155
3. B2 1st and reverse brakeAX-155
Harsh engagement (Lock-up)1. Lock-up relay valveAX-155
2. Torque converter clutchAX-153
Harsh engagement (2nd -> 3rd) Valve body assemblyAX-118
Harsh engagement (3rd -> O/D) Valve body assemblyAX-118
Harsh engagement (O/D -> 3rd) Valve body assemblyAX-118
Slip or shudder (forward position, after warm-up)1. Oil strainerAX-118
2. Torque converter clutchAX-153
3. C1 forward clutchAX-155
4. C2 direct clutchAX-155
5. C3 U/D brakeAX-155
6. F1 No. 1 one-way clutchAX-155
7. F2 U/D one-way clutchAX-155
Slip or shudder (shift lever on R)1. Oil strainerAX-118
2. C2 direct clutchAX-155
3. B2 1st and reverse brakeAX-155
Slip or shudder (1st) F1 No. 1 one-way clutchAX-155
Slip or shudder (2nd)1. F2 U/D one-way clutchAX-155
2. B1 2nd brakeAX-155
Slip or shudder (3rd) C2 direct clutchAX-155
Slip or shudder (O/D) C3 U/D clutchAX-155
No engine braking (1st to 3rd/shift lever on D) B3 U/D brakeAX-155
No engine braking (1st/shift lever on L) B2 1st and reverse brakeAX-155
No engine braking (2nd/shift lever on 2) B1 2nd brakeAX-155 Symptom Suspected area See page

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Poor acceleration (all positions)1. Torque converter clutchAX-153
2. U/D planetary gearAX-155
Poor acceleration (O/D)1. C3 U/D clutchAX-155
2. U/D planetary gearAX-155
Large shift shock or engine stalls when starting off or
stoppingTorque converter clutchAX-153
No kick-down Valve body assemblyAX-118 Symptom Suspected area See page