Trans N flashing
 

Hi All

My 2002 Mitsubishi Lancer tiptronic trans has decided to stop engaging any gear. Was all fine, stopped on the highway then went to take off and shuttered briefly until no engagement (reverse aswell). Just revs and stays in N. Dash N flicks twice a second. AT oil dip stick is showing full when car running. Still not engaging after a few hours of cooling down. Fuses ok. Any thoughts?

Thanks in advance