1997 Honda Accord

1997 Honda Accord 4 cyl Automatic 170000 miles

While driving the D4 light start blinking continusly. If I select D3 then also D4 will be blinking. Along with that the engine light also start on, the speedometer will stop working. After switch of the car and switch on it will work normaly for a few kilometers and again same problems will start. Also two waning tones will be comming similer to the seat belt warning tone.