my O/D off light is flashing does anyone know what this means guessing its some kind of code....

 

Well is your spedometer working?
if not u might possibly need a speed sensor or it got unplugged, if not your best bet is to try to gety the code off of the computer, i will check my book and tell you what pins in your acess plug to jump and the od light will flash in a particular sequence telling u the problem. if u would like?

 

it starts to flash whenever the car is in drive an keeps on flashing till i turn off the car...yes my spedometer is work fine its just the O/D flashing..thanks

 

I got the same issue but my speedo isnt working it will just jump around while I drive. I thought it was the guage cluster. So all I have to do is check my speed sensor?

 

i just find this...http://www.autoforumz.com/Overdrive-...opict5218.htmli also had a transmission flushed like a month ago it sounds like my problem