Raise the car until the wheels are off the floor by a few centimeters.
Connect the diagnostic tool (CLIP).
Enter into a dialogue with the automatic transmission computer.
Monitor the oil temperature parameter in the automatic transmission.
The check should be carried out at an oil temperature in the range of 60°–80°C.
Start the engine, put the selector lever in position D.
Keep track of engine speed. Enter the dialogue mode with the ECU.
While holding the brake pedal depressed, fully depress the accelerator pedal.
The front wheels must not turn.
Attention! Do not hold the accelerator pedal fully depressed for more than 5 s. If this period of time is exceeded, the torque converter or the automatic transmission itself can be destroyed with a high degree of probability.
Immediately after the measurement, release the accelerator pedal and continue to hold the brake pedal depressed until the engine speed stabilizes at idle (if this requirement is not observed, there is a risk of failure of the automatic transmission).
Note. For cars with a K4M engine, the crankshaft speed is set at 2700±150 min–1.
Note. For vehicles with an F4R engine, the crankshaft speed is set to 2500 min–1.
If the torque converter locks up when the engine speed is out of specification, replace the torque converter.
Note. The cause of the torque converter blocking at a reduced crankshaft speed may be insufficient engine power.