I did my pressure switch yesterday and 2x3 and notice that my D is flashing after I did the switch and flush. Does overfill the atf cause this?

Thanks

 

Based on research, its something with the pressure switches

https://acurazine.com/forums/3g-tl-problems-fixes-114/tranny-problems-d-indacator-flashing-848418/

 

Check your pressure switches make sure they are installed In the right place and plugged in correctly. I had a flashing D light and car would not shift past 3rd gear. Turns out one of my pressure switches was damaged.

 

 

Shifting is fine. Everything is plug in. I'm going to put back the old pressure switch.

 

When I installed new switches in my car, I unplugged something (probably was a trans temp sensor) and didn't plug it back in all the way. I had the flashing D light but it worked fine... just go back and check your connections.

 

 

^+1
and you might try disconnecting your battery for a few minutes and then reconnecting it.

 

The problem was the 3rd switch next to the driver wheel wasnt working so Acura replace it with a new one. Thanks everyone.