a lot of error codes for my 2007 Prius, frustrated!

Well in New Hampshire unless the car is in very nice condition. I wouldn't bother It would be a decent parts car I guess You don't say what intentions are really here You going to keep it for a few months and then sell it You wouldn't get the return out of your investment I don't think if you fixed all this stuff you better keep it a couple years and then if you don't know anything about automobiles and all of that this can get tricky You're going to have a job and a life and all of that's going on so many people especially in a cold zone like you are don't revel in being out in minus degree weather fooling with their car trying to get to work. There's no savings in any of that. I mean you can turn around and buy a used Yaris on vacation in another state where there's no snow and rust while you're going on vacation going down to visit Mom at the beach whatever. And that car would get almost the gas mileage of the Prius without the battery without the funny transmission and without all these problems so there's always that. Then to fool and play with cars you need tools tools aren't necessarily cheap and then you have to store them they're steel they weigh and now you're carrying them from apartment department until you buy a home maybe with a garage so there's lots to consider.

 

No good answers for you. Unless you are very DIY on auto repair, old hybrid cars are expensive to keep running.

All you problems are fairly common on the Gen2 Prius, but they require time, skill, and parts to repair. To have someone else do that (properly) will cost $$.

If you replaced the hybrid HV battery 6 months ago, shouldn't that still be covered by a warranty?

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The OP stated:

• Engine and ECT:
  • P0420: Catalyst system efficiency below threshold (bank 1)
• Hybrid control:
  • P3000: Battery control system
• ABS/VSC/TRC
  • C0200: Right front speed sensor circuit
  • C1235: Foreign object attached on tip of right front speed sensor
  • C1241: Low battery positive voltage or abnormally high battery positive voltage
  • C1242: Tire pressure monitor
• Tire pressure monitor
  • C2121: Data from transmitter ID 1 not received (main)
  • C2122: Data from transmitter ID 2 not received (main)
  • C2177: Initialization incomplete
• Gateway
  • B1271: Combination meter ECU communication stop
• Hybrid battery
  • P0A80: Replace hybrid battery pack
  • P3017: Battery block 7 weak

Can any of these codes be resolved in cheap way? I am particularly concerned about the hybrid errors. I plan to use the car for another 4 months and then sell it. Should I sell it right away, or should I just junk it? If anyone has any knowledge or advice, could you please share?

The answer to that question is 100% dependent on your ability to DIY. If it were my car, and in good enough condition to be worth saving, I could fix all those issues for $400 or less.

1. P0420 The catalytic converter can be replaced by a reliable aftermarket model for about $125 and an hour of my time.
2. P3000, P0A80, P3017 can be fixed with a quick rebuild of the HV battery. Probably three replacement modules (or less) and a couple days for disassembly, testing, and reassembling. A couple hours if it's just a rush job with minimal testing/capacity matching.
3. C0200/1235 The right speed sensor is just dirty and needs to be removed and cleaned. 20 minutes and a 10mm socket. This is probably the one that's really messing up your driving because it's screwing up the skid control.
4. All the TPMS codes? who cares. The sensors need new batteries, but create no driving problems. If desired, install new ones next time the tires get changed.
5. The dash being dark is the typical combination meter failure and can be fixed by anyone competent with soldering. DIY for a few hours of time to disassemble the dash and a few dollars to buy new capacitors or get a replacement from Texas Hybrids for $150-200(?)ish.

If you are NOT a good DIYer, most of these repairs may be out of your skill set.

 

The only one that I have trouble with out of all this nonsense is I have not been able to get a p 0420 or catalyst below threshold to clear yet now I haven't bought an $1,800 factory converter because I don't have to where I live but I have an '07 here that has a really nice aftermarket catalytic converter on it from one of the largest sellers manufacturers on eBay A lot of the V8 guys buy these converters for their cars and don't have any troubles I put one of these on a generation 2 Prius and that code will not go away with or without the converter both of the sensors in the freeze frame data to look like they're doing properly. I haven't bothered to replace them yet they tell me to do the downstream only and see what happens I might get around to it I may not other than the light being on and that code always being present the car gets 47.1 miles to the gallon with no issues so what's the point other than if you lived in an emission state you would have to and this wouldn't do but I don't live in an emissions county so I can have a pipe there if I want. But I read stories where people these states with the test for emissions that have done this and got it to work Not sure exactly how Not sure how long it stays working I see a lot of them do this and then the things come right back after they get inspected or not long after and then I never hear the rest of the story because they either get rid of the car they can't pass the next emissions test so on and so forth I just made sure that I'm living in a place where I do not have emissions that eliminates a lot of problems I know living somewhere trying to live somewhere to avoid things could be problematic for some but not here where I am and it's final I moved here don't have emissions we never will have and that ends that All my car care woes became a lot easier to deal with .

 

Cleaning the hybrid vehicle (HV) battery fan will not correct a P0A80 trouble code. Based on the P3017 trouble code and the screen print from the Dr. Prius app, you have a bad module in block #7. A battery block consists of two modules, and it looks to me like one of the two modules is bad. You can purchase a used module on eBay and replace the bad one in block #7, and it might fix the P3000, P0A80, and P3017 hybrid battery trouble codes.

I am curious: What did you pay for the HV battery that you have in the car?

How many miles do you have on the car now?

 

The change out process takes about 55 minutes You've got to put all the stuff back you undid the brackets and everything if it's a customer's car in my personal car I have these trim to certain way so I can get everything out in about 28 minutes. But the repair of the battery takes much longer usually these guys will have a setup that can work anywhere from whatever it is 28 to 60 modules at a time putting them through their paces failing certain ones etc then a big shop generally buys nuts and bus bars so they're not cleaning and fooling with originals so they have those ready to go no time to work on those.

 

Correct. The answer to "How are the modules numbered in the HV battery " can be found by searching this forum. You also need to learn what Toyota is calling a "block".

I will repeat what I wrote previously. There are two modules that make up block #7. One of the two modules is bad and needs to be replaced. I now add that you will need a volt meter to determine which one of the modules is bad by measuring the voltage of the module. The HV battery pack is comprised of 28 battery modules, all wired in series.

You need to do a lot of searching and reading on this forum if you plan on fixing the HV battery by yourself. You tube videos are also very helpful so that you can see what the HV battery looks like and how to replace a module. Spend the time searching, reading, and learning about the HV battery. It will be time well spent.

FYI, you do not buy a battery block on eBay. You buy battery modules.

Edit: Please do not create new threads on this forum for the same problems (trouble codes) that you listed in post #1. Keep everything in one thread for clarity. Only create a new thread for any new future problems that you have with your car.

 

You also need time and a place to do any work, plus a "plan B" in case something goes wrong and you can't fix it.

Lots of threads in the forums about battery module replacement. You learn things by doing them (and making mistakes here and there).

Take lots of pictures, go slowly, and have a healthy respect for high voltage.

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