Throttle control unit learning

This function is used to learn the throttle voltage and the accelerator pedal position.
Note:
First will the learned values be reset to factory setting, then is a new learning performed.
Test conditions:
Procedure:
  1. Start the function.
  2. Press the throttle pedal fully down.
  3. Press "OK" to continue.
  4. The learning begins.
  5. Hold the accelerator pedal pressed down and wait for about 7 seconds.
  6. Release accelerator pedal.
  7. Press "OK" to continue.
  8. Do not touch the accelerator pedal and wait for about 7 seconds.
  9. The function is done.