Why does the d4 dash light blink on 1996 Honda Civic

D4dash light blinks, rough going into reverse and rough take off, seems hard finding gears

1 answer
'D4' blinking indicates that there are trouble codes stored in the trans control module. Is check engine light on also? If so have that scanned. Post PGM-FI (engine) and A/T codes for more help. Avoid driving car as much as possible.