Clutch Coast Learning of Transmission Control ECU

PERFORM CLUTCH COAST LEARNING OF TRANSMISSION CONTROL ECU

CAUTION: If the warning buzzer sounds after the initial learning of the transmission control ECU is performed, perform the clutch coast learning of the transmission control ECU according to the operation mentioned.

a. Start and warm up the engine. (Water Temperature: 35 °C (95 °F) or more)
b. After starting with the shift position in 1st, shift up to 3rd.
c. With the shift position in 3rd, accelerate the engine until the engine revolution becomes 3,000 rpm or more.
d. From the condition in (c), release the accelerator pedal and decelerate the engine until the engine revolution becomes 3,000 rpm or less.

NOTE: At this time, do not use brake.

e. When the engine revolution has become less than 3,000 rpm, shift the gear from 3rd to 2nd.
f. keeping the condition of (e), keep coasting until the engine revolution becomes 2,000 rpm or less.

HINT:
- Accelerator: OFF
- Brake: OFF

g. In order to secure this learning, repeat the above operations 3 times.
h. Check that the clutch coast learning is finished completely.

CAUTION:
- To ensure safety, conduct this test in a wide, clear level area which provides good traction.
- This test should always be carried out in pairs. One technician should observe the conditions of wheels or wheel stoppers outside the vehicle while the other is doing the test.

1. Chock the 4 wheels.
2. Fully apply the parking brake.
3. keep your left foot pressing firmly on the brake pedal.
4. Start the engine.
5. Check that the engine revolution is 700 ± 50 rpm.
6. Shift to the 2nd.
7. Press all the way down on the accelerator pedal with your right foot.
8. Check that the warning buzzer (long pulse sound) does not sound within 3 seconds.
If the warning buzzer sounds, do the operation again from step (b).