Road Test

ROAD TEST

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

a. D position test
Shift into the D position and fully depress the accelerator pedal and check the points.

1. Check up-shift operation.
Check that 1 -> 2, 2 -> 3 and 3 -> O/D up-shift takes place, and that the shift points conform to the automatic shift schedule.

HINT:
- O/D Gear Up-shift Prohibition Control (1. Coolant 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. Coolant temp. is 60 °C (140 °F) 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 noises and vibration.
Drive in the D position lock-up or O/D gear and check for abnormal noises and vibration.

HINT: The check for the cause of abnormal noises and vibration must be done very thoroughly as it could also be due to loss of balance in the differential torque converter clutch, etc.

4. Check kick-down operation.
While running in the D position, 2nd, 3rd and O/D gears, check that the possible kick-down vehicle speed limits for 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 D position, 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. M position test
Shift to the M position, depress the accelerator pedal and check the points. Shift operations.
Pressing the transmission shift switch to "UP" or" Down" makes the transmission up-shifted or down-shifted respectively.
Without pressing the switch, it is not automatically shifted to either up or down. When a vehicle is stopped, it is automatically down-shifted to 1st gear.

HINT: Manual shift prohibition control (1. When the ATF temperature is low. 2. When down-shifting causes engine overrun. 3. When down-shifting is required continuously, down-shifting to 1st gear may not be performed. 4. When the ATF temp. is high, up-shifting to O/D is not performed.

c. 2 position test
Shift into the 2 position and fully depress the accelerator pedal and check the points.

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.

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

2. Check 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 noises during acceleration and deceleration, and for shock at up-shift and down-shift.

d. L position test
Shift into the L position and fully depress the accelerator pedal and check the points.

1. Check no up-shift.
While running in the L position, check that there is no up-shift to 2nd gear.
2. Check engine braking.
While running in the L position, release the accelerator pedal and check the engine braking effect.
3. Check for abnormal noises during acceleration and deceleration.

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

CAUTION: Before conducting this test ensure that the test area is free from people and obstruction.

f. 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.