Im having a issue with my 04 civic.I am getting code P0717(speed sensor short to ground) so I changed my speed sensor with a used one and it worked good for two days then I got a code p0717(speed sensor no communication).I put the old one back in to see if I got the same code but the only code i get now is p0700. Also i checked the datastream and when im in park on the scan tool it says park, when in Reverse it says invalid when im in neutral it says im in park when i put it in drive it says in 1st the a second later it says im in neutral says im in neutral for D3 and says im in reverse for 2nd. It shifts fine but I get a CEL and the D light flashes. Anyone have any idea what the problem could be