2007 Prius with C1259 and C1310 - any ideas?

well done!

 

How much did all of this cost you? The same lights are on my car with codes P3014, P3000, C1241, C1259, C1310. I was told I could replace 6 parts that are inside the battery which cost about $30 each part but I’m still unsure of what exactly is going on. Do I need to buy a whole new battery?

 

you don't have a failed battery code. perhaps the bus bars and etc. are corroded.

 

Actually there are two codes that indicate the battery is not really happy:

P3014 = Battery Block 4 Becomes Weak
P3000 = HV Battery Malfunction

Not sure what "6 parts" they had in mind, but you likely need only one or two modules replaced. In addition, like bisco said, you will more than likely need the bus-bars cleaned as well.

If you want another 10 years reliable use of your car, and it is in otherwise excellent condition, you should consider just replacing the whole battery with a Factory OEM new battery, and not a secondhand battery of any description, which includes descriptions such as "rebuilt", "reconditioned", etc. If it would not make sense to put in and OEM new battery, then you should rework the battery yourself. If you are not the DIY type, @JC91006 or @TMR-JWAP may be able to recommend a place where you could have the work done. TMR-TWAP might even have a solution to offer you.

 

If you have a good condition, low mileage car, I would recommend you buy a new battery and forget about it. This is the most reliable option. You can also try and request a good will warranty from Toyota to get your battery replaced

If you have some issues, high mileage, and need to buy extra time before getting another car, then you should repair the battery and not buy new. This option is not very reliable but it's fairly affordable. And there are even members in your neck of the woods (northern cal) that can help with this option. @SFO @Raytheeagle

 

@Mercedes Blake , welcome to Prius Chat .

Some questions:

• How many miles on your Prius?
• Original owner, or how long have you had this Prius?
• What condition is the Prius in?
• Any recent maintenance performed?

If you can provide more details, I can probably help out.

Good luck and keep us posted .

 

Nice escape!
If, by chance, you took a pic of the location of the terminal with the missing nut that would be useful.
Cheers

 

I think it's any of the 28 modules, 1 missing a nut

 

OP wrote: "It turns out that a nut on one of the cell terminals in the HV battery (the one with the sense wire) was missing"
As a newbster, his reference to "the ONE with the 'SENSE' wire" means nothing to me, so I was hoping a pic could illustrate which cell/block has this 'sense' wire.

 

You can't have any missing nuts, regardless of its location.

 

So when the OP said
"It turns out that a NUT on one of the cell terminals in the HV battery (the one with the sense wire) was missing"
maybe they were referring to a 'wire' nut and not a 'mechanical' nut?
Just trying to get clarification...
Thanks

 

Here's a bowl of terminal nuts

 

I have a code p0a80 I checked all the cell all of them 8.11v and up to 8.34v . This is 2015 Toyota Prius V can you please help me out

 

you need to test them under a load. how many miles on her?

 

There are usually other codes associated that will also point you in the right direction .

What scanner are you using?

Good luck and keep us posted .

 

I’ve had the same issue on my ‘06 Prius (1310 & 1259 codes) but I just disconnected the 12V battery for about 10 minutes and that cleared the codes and it’s starting again. Anyone else have any luck with this? I’m a bit nervous now.

 

that just resets the codes, it will be back