Road Test

ROAD TEST

NOTE: Perform the test at the ATF temperature 50 - 80 °C (122 - 176 °F) in the normal operation.

a. D position test
Shift into the D position, depress the accelerator pedal fully and then check the following points:

1. Check the up-shift operation.
The up-shift operation, such as 1 -> 2, 2 -> 3 and 3 -> O/D, is taken at the shift point shown in the automatic shift schedule.

HINT:
- O/D Gear Up-shift Prohibition Control (1. Coolant temperature is 60 °C (140 °F) or less. 2. If there is a difference of 10 km/h (6 mph) between the set cruise control speed and vehicle speed.)
- O/D Gear Lock-up Prohibition Control (1. Brake pedal is depressed. 2. Coolant temperature is 60 °C (140 °F) or less.)

2. Check for shift shock and slip.
Check for shock and slip at the up-shift operation of 1 -> 2, 2 -> 3 and 3 -> O/D.

3. Check for abnormal noise and vibration.
Run at the D position lock-up or O/D gear and check for abnormal noise and vibration.

HINT: Check the cause of abnormal noise and vibration thoroughly, as it could be due to the loss of balance in the differential torque converter clutch, etc.

4. Check the kick-down operation.
While running in the D position, 2nd, 3rd and O/D gears, check that the possible kick-down vehicle speed limits of 2 -> 1, 3 -> 2 and O/D -> 3 kick-downs conform to those indicated on the automatic shift schedule.

5. Check abnormal shock and slip at kick-down.

6. Check the lock-up mechanism.
- Drive in the D position, O/D gear, at steady speed (lock-up ON) of about 60 km/h (37 mph).
- Depress the accelerator pedal lightly and check that the engine speed does not change abruptly.
If there is a big jump in the engine speed, there is no lock-up.

b. 2 position test
Shift into the 2 position, depress the accelerator pedal fully and check the following points:

1. Check up-shift operation.
Check that the up-shift operation of is taken 1 -> 2 up-shift takes place and that the shift point conforms to the automatic shift schedule.

HINT: There is no O/D up-shift and lock-up in the 2 position.

2. Check the engine braking.
While running in the 2 position and 2nd gear, release the accelerator pedal and check the engine braking effect.

3. Check for abnormal noise during acceleration and deceleration, and for shock at up-shift and down-shift.

c. L position test
Shift into the L position, depress the accelerator pedal fully and check the following points:

1. Check no up-shift.
While running in the L position check that there is no up-shift to 2nd gear.

2. Check the engine braking.
While running in the L position, release the accelerator pedal and check the engine braking effect.

3. Check for abnormal noise during acceleration and deceleration.

d. R position test
Shift into the R position and depress the accelerator pedal fully and check for slipping.

CAUTION: Before conducting this test, ensure that people and obstructions are kept away from the test area.

e. P position test
Stop the vehicle on a grade (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.