Compression test

This function is used to perform a compression test.
Compression test is used to decide how good the cylinder compression is. The engine is not started for this test. The test results are shown as percentages (0-100%).
Observatie:
Active fault codes must not be at:
Test conditions:
Procedure:
  1. Start the function.
  2. Turn on the ignition, the values from the compression test are shown.
  3. Turn off ignition, press "OK".
  4. Wait 6 seconds.
  5. Turn on the ignition, press "OK".
  6. The function is done.