This function is used to reset the value for top dead centre and then a new test-drive procedure is run to teach in new values.
Test conditions:
Ignition on.
Coolant temperature above 35 °C.
Access to a stretch of road that fulfils the conditions set out below.
Procedure:
Start the function.
Reset of learned values takes place.
Exit the function and prepare the test-drive procedure.
Reduce speed with an injection shut-off (that is, let up the brake pedal, accelerator pedal, and clutch pedal) between 1800 and 1400 rpm, with 3rd gear for a manual transmission and in 2nd gear for an automatic transmission, for at least 3 seconds with coolant temperature above 35°C.
Reduce speed a second time with an injection shut-off (that is, let up the brake pedal, accelerator pedal, and clutch pedal) between 3500 and 3000 rpm, with 3rd gear for a manual transmission and in 2nd gear for an automatic transmission, for at least 14 seconds with coolant temperature above 35°C.
Check that the data list parameter "Teach-in ring gear engine flywheel" is "Done" - if the parameter is not done, repeat programming.
The function is done.
If the function fails, check the test conditions and repair any faults.