I have a 2011 Prius and I had it over a year also has a recon hybrid battery for a year now and basically recently all the lights came on and the car was going into just engine mode so I could still drive it but without the hybrid system on and all the lights were on I did get the car checked via computer many times . So eventually I got there recon hybrid battery again and ended up getting the manifold cleaned also the EGR valve cleaned so the engine was sounding much better and it was driving like normal for a couple of days then on the lights came on again I don't know if it's the hybrid battery again but it is also showing full communication errors in all four departments on the computer machine so if anybody could please help me out I can also post pictures if possible
The P0A80 is about your traction battery. The C1259 and C1310 are just because of the P0A80. The various U codes might be worth tracking down; the troubleshooting steps for those will be found in the Multiplex Communication System section of the repair manual. There's a lot of information there. Toyota Service Information and Where To Find It | PriusChat
