Red Triangle and VCS and codes

Hey All,

I've read quite a bit here. The members here are really helpful. I've got a 2008 Gen 2 with 131k miles that lit up the dash with the red triangle, vcs and display warning, according to my son who was driving it at the time. By the time I saw it, the VCS was not lit. I used Techstream and got the following codes:

P3000
P0A80
P1151
P1116
B1443

First thing I did was check the oil. My son and I have an ongoing battle because he won't check it. It was two quarts low. So, after reading a bit here, I cleared the codes and got the info below using Techstream:



A few months ago, I bought a hybrid automotive Prolong and did 3 full charge/discharge cycles because the battery seemed to running with a low bar count and the car felt like I was trying to let the clutch out on a manual transmission while in second gear. The Prolong helped, but didn't bring it back to 'like new'.

I have driven close about 30 miles after clearing the codes. No new codes. Battery seems to be cycling reasonably well. I'm no expert on what is acceptable block voltage or internal resistance. 16.03-15.54=0.49V delta. Seems a bit high? There doesn't seem to be 1 or 2 or 3 etc...cells that are low. Internal resistance in the 25 to 27 mOhm range. Is this OK?

Could the low oil have triggered this dash fireworks? I'm not sure what to expect moving forward.

Any feedback is appreciated,
Larry

 

No response?! FYI, after 200 miles, I have not experienced any codes or issues. I am wondering if anything will occur in the near future. I suppose the codes were related to low oil.

 

I expected the P0A80 code to return, but it hasn't thus far. After looking at the data, posted above, I am not sure I see any modules with a hard failure.

 

Thanks for the response. I don't have much experience with HV batteries, so I don't know how much voltage delta is a problem. The car is running fine now and the charge/discharge rate seems OK, although not like when it was new. I have seen posts about loading the battery, but I already know the battery is on it's way out. Changing 'bad' modules doesn't seem like a valid option since more than half of them are >0.3V below the high voltage modules. I suppose I should look at options for replacing the whole battery, either from scrap yard, remanufactured outlets or the dealer. I guess I should do some research.

 

Max DeltaSOC should be 20? Good to know. I wasn't aware of that limit. By the way, is there someplace where this type of data can be accessed here? Or do I need to get the Toyota manuals?

I charged and discharged the pack over the Christmas holiday 3 full times. Followed the instructions to the letter. It took quite a few days to get it completed. Too little to late, I guess. Should I do it again? The battery does perform much better. Although, the gas mileage has gotten low. Somewhere around 37mpg and I am not driving it hard.

 

Running the oil that low is a concern for sure and that will influence any future investments that I consider.

Is there a single document/guide that provides information on how to interpret the Techstream output for the Prius? I have been able to find pdfs addressing specific DTCs, but nothing comprehensive.

I check the coolant fairly often and it is always full in the radiator.

I occasionally get a CEL on cold days that goes away when the weather warms. Usually P1151 and P1116 reported at that time.

AC code is not a concern for me at the moment.

I am starting to think that me and this car need to part ways.

 

Thanks for all the responses. Rebuilt the front-end of my Mountaineer this weekend so no time to work on the Prius. I'll get back to it this week and respond with some details as discussed above. The Prius is running OK, not great, for now... I am fully expecting more dashboard fireworks at some point in the near future.

Yes, the warranty period is over...

 

I am not expecting documentation for $20. I was simply asking the question on the off-chance that someone has consolidated useful information into a document.