P0A80 and c1259 and c1310

Yes. The P0A80 is a code from the battery ECU reporting a primary issue. The C1259 and C1310 are codes from the brake/skid ECU that mean "hey, did you know there's a code reporting a primary issue in the hybrid system?".

 

I had these exact codes not long ago.

I replaced both my rear wheel hubs.

I assumed since it had one OEM and one aftermarket one that they needed to be changed after 10 years anyway.

That did the trick for me but had to replace one bad module before it was good again.

Passed smog after that even with the permanent hybrid code still there.

So tackle the speed sensor and if your car has been in an accident on any corner chances are it is that speed sensor.

Posted via the PriusChat mobile app.

 

Once again, P0A80 is a code set by the battery ECU, indicating the modules in the battery are too far apart in voltage and the battery is ready to go to pasture.

The power management control ECU knows that code is present, and sends two 'malfunction' messages to the brake/skid ECU so it will know it has to handle braking without relying on the hybrid system. The brake/skid ECU sets the C1259 and C1310 codes to confirm that it received those messages and knows about the problem being announced by the power management control ECU.



None of those codes would implicate any wheel speed sensor. On the other hand, if you happened to muck with some speed sensors and replace a bad module in the same flurry of work, and at the end of the work the codes were gone, and you were averse to reading the manual, you might end up thinking there was a connection there that wasn't.

 

Congratulations !

Please check back from time to time. W'd love to know how the green bean is holding up.

The 2012 C is still new (for a prius) and only a few* of us have needed to replace our traction battery.

Hopefully we can pay it forward and have a vibrant sub forum for years to come.
-Rob

*(I Replaced mine in 2018 )

 

Sounds a little post hoc ergo propter hoc-ish to me.

 

It looks like this post is a year old but I'm intrigued because I have the same codes and have just replaced the hybrid battery pack with a brand new one and still have the codes C1259 and C1310 and it started shortly after running into a curb so hard that I had to replace both tires on one side. But now that I read your post again, it may be the replaced bad module that cleared the codes, and not the rear wheel hubs. Can somebody knowledgeable who might be reading this confirm that replacing the rear hubs could/could not possibly have cleared codes C1259 and C1310?

 

Change both rear hubs and you will be good to go.

I bought cheap ones from Amazon I believe or Ebay.
No issues at all with those codes again.

The pack you have now will slowly degrade until then.
Those two codes will prevent charging the HV battery.

http://www.RedBullet.net

https://ProjectLithium.com/?ref=mG0GE

http://www.Pulstar.com

http://www.PlugOutPower.com
Use code 7373

http://www.hybridpit.com
Use code azusa

http://CatStrap.net
Use code azusa

 

You can look at post #7 and see from the car's Repair Manual exactly what the codes C1259 and C1310 do (and don't) mean.

 

@Bond_007

You may also still need to change the front passenger sensor.

But I would say still change both rear hubs since they are old and why have two different hubs like I did, so change both.

 

The manual is also an excellent place to learn which trouble codes do indicate any issue with wheel speed sensors or bearings, in case in the future you ever see any of those.