Toyota Tundra. Manual — part 2787

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.

Check the vehicle speeds when the 2 --> 1, 3 --> 2, 4 --> 3, 5 --> 4 and 6 --> 5 kick-downs
take place while driving with the shift lever in the D position. Confirm that each speed is
within the applicable vehicle speed range indicated in the automatic shift schedule (see
SERVICE DATA ).

5. Check for abnormal shock and slippage at each kick-down.

6. Check the lock-up mechanism.



Drive with the shift lever in the D position (5th gear) at a steady speed (lock-up ON).



Lightly depress the accelerator pedal and check that the engine speed does not change
abruptly.

HINT:

If there is a sudden increase in engine speed, there is no lock-up.

b. S position test

1. Check shift operation.



While driving the vehicle in 6th gear with the shift lever on D, move the shift lever to
S and return to D. Check that the 6 --> 5 down-shift and 5 --> 6 up-shift can be
performed.

HINT:



When vehicle speed is 100 km/h (62 MPH) or more:

6 --> 5 down-shift and 5 --> 6 up-shift



When vehicle speed is less than 100 km/h (62 MPH):

6 --> 4 down-shift and 4 --> 6 up-shift



With the shift lever on S (while the vehicle is stopped), shift into the "+" position to
check that the shift position on the combination meter changes as follows: 1 --> 2, 2 --
> 3, 3 --> 4, 4 --> 5 and 5 --> 6.



While driving the vehicle in 6th gear with the shift lever on S6 (at a vehicle speed of
approximately 70 to 80 km/h (43 to 50 MPH)), shift into the "-" position and check if
the 5th gear down-shift occurs and the engine brake operates properly.



While driving the vehicle in 5th gear with the shift lever on S5 (at a vehicle speed of
approximately 55 to 65 km/h (34 to 40 MPH)), shift into the "-" position and check if

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

the 4th gear down-shift occurs and the engine brake operates properly.



While driving the vehicle in 4th gear with the shift lever on S4 (at a vehicle speed of
approximately 35 to 45 km/h (21 to 28 MPH)), shift into the "-" position and check if
the 3rd gear down-shift occurs and the engine brake operates properly.



While driving the vehicle in 3rd gear with the shift lever on S3 (at a vehicle speed of
approximately 20 to 30 km/h (12 to 19 MPH)), shift into the "-" position and check if
the 2nd gear down-shift occurs and the engine brake operates properly.



While driving the vehicle in 2nd gear with the shift lever on S2 (at a vehicle speed of
approximately 10 to 20 km/h (6 to 12 MPH)), shift into the "-" position and check if
the 1st gear down-shift occurs and the engine brake operates properly.

HINT:

Manual shift (S position) is prohibited under either of the following conditions:



Down-shifting that causes engine overrun.



The driver continuously down-shifts (Downshifting to 1st gear may not be performed).

c. R position test

Shift into the R position, lightly depress the accelerator pedal, and check that the vehicle moves
backward without any abnormal noise or vibration.

d. P position test

Stop the vehicle on an incline (more than 5°) and after shifting into the P position, release the
parking brake. Then, check that the parking lock pawl holds the vehicle in place.

MECHANICAL SYSTEM TESTS

1. STALL SPEED TEST

HINT:

This test is to check the overall performance of the engine and transmission.

CAUTION: Before conducting this test, ensure that the test area is free

from people and obstructions.

CAUTION:



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.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

a. Connect the Techstream to the DLC3.

b. Run the vehicle until the transmission fluid temperature has reached 50 to 80°C (122 to 176°F).

c. Allow the engine to idle with the air conditioning OFF.

d. Chock ail 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: 3UR-FE: 2310 +/- 200 RPM

3UR-FBE (E85): 2300 +/- 200 RPM

3UR-FBE (E0): 2250 +/- 200 RPM

Evaluation:

TEST RESULT POSSIBLE CAUSE TABLE

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 Techstream to the DLC3.

b. Run the vehicle until the transmission fluid temperature has reached 50 to 80°C (122 to 176°F).

c. Allow the engine to idle with the air conditioning OFF.

NOTE:

Do not perform the stall speed test for longer than 5 seconds.

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

NOTE:

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

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra

d. Set the parking brake and keep the brake pedal depressed firmly.

e. Check the D position 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 position 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 position time lag is less than 1.2 seconds

R position time lag is less than 1.5 seconds

Evaluation:

TEST RESULT POSSIBLE CAUSE TABLE

HYDRAULIC TEST

1. PERFORM HYDRAULIC TEST

a. Measure the line pressure.

Test Result

Possible Cause

D position 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 position 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

CAUTION: The line pressure test should always be carried out in pairs.

One technician should observe the conditions of the wheels and
wheel chocks from outside the vehicle while the other is
performing the test.

2009 Toyota Tundra

2009 TRANSMISSION AB60F Automatic Transaxle - Tundra