Error codes: C1252, C1256, C1300

2006 Toyota Prius with 308,000 miles (body) engine replaced at 256,000 with one that had 56k. Has been sitting about a year because the hybrid battery needed to be replaced. Replaced it a few days ago and now these codes came up when the guy changed it. I looked up C1256, and from my finding it looks like it is the accumulator pump- is this correct? Couldnt find any info on the other codes. I don’t really wanna get rid of the car because it’s in good shape, no major body damage, inside is in good condition. When the breaks went out last year that’s when I found out the hybrid battery also needed to be replaced. Toyota didn’t know why the breaks went out and sent me on my way. Any recommendations? Here’s a pic of the codes from the guys computer.

 

I don’t, from that link it looks like it’s $1,200 for one year? Way out of my budget for this.

 

Yes, I took it to the dealer because we changed the wheel hubs I think, and couldn’t get the brakes to bleed. And when I took it to the dealer that’s when they told me it needed a hybrid battery, Cadillac converter and a spiral cord thing that is under the steering wheel. Didn’t have the $5k+ to do it so it sat til now. Now that the battery is replaced it’s showing these codes. I bought an ECU, now I just need to find a brake actuator if Toyota does nothing- contacted Toyota about the replacement but the time period expired. Hopefully they can at least discount some of the work or something. If they can’t discount I’ll find a used one and put it on and let Toyota bleed the brakes. And hopefully have a working car.