Erasing DTCS

Manual Readouts Via DLC:

DTCs cannot be erased until all DTCs in store have been read at least once, i.e. until the first DTC appears a second time while reading them out.

To erase DTCs in DTM 1, proceed as follows:
- Press button and hold down for more than 5 seconds.
- Release button.
LED will come on and stay on after 3 seconds.
- Press button again and hold down for at least 5 seconds.
- Release button. LED will go out.
- DTCs are now erased.

Checking that DTCs are erased. Switch ignition off, then switch it on again. Check that DTCs are erased by pressing the button briefly but firmly once. If display reads 1-1-1, this means all DTCs have been erased. If not, start again from above.