Hello the other day i was at walmart and shifted my car into reverse and the CEL came on. Along with this the D light started to blink. There was snow outside but not too high. I went to advance auto parts and they pulled up the engine code P0815 Upshift Switch Circuit. As I was driving home everything felt fine, and shifts were smooth.

I googled for a fix but I haven't gotten any clear answers.

Does this mean my transmission is slowly breaking down on me and I need a rebuild soon?

Any and all help is appreciated, thank you guys in advance

 

Some car information would be highly pertinent and useful here don't you think?

 

Oh yeah, sorry about that.

I have a 04 Acura TL 105K miles on it. Did a transmission fluid change last year around May

 

My google search yielded this: P0815 Acura Short In Transmission Gear Selection Switch Upshift/Dowshift Switch Circuit OBDII Engine Light Trouble Code | Engine-Codes.com

 

I believe the second bullet point in the Note section of the first page of the diagnostic will please you. But read everything nonetheless.