This is what I heard :
Disconnect all components specified below and delete the fault memory.
With all components disconnected, if the fault memory entry is
present: Check the wiring harness for insulation damage.
not present: Reconnect all components step by step until the fault is entered again.
Components of the component group 2:
Fuel injectors
Ignition coils
If installed:
Unfiltered-air flap controller
After rectifying the fault, reset the mixture preparation adaptation values.