Gen 2 Individual battery modules replaced, but still get triangle of death

- Turn the car on to READY and back off 5 times.
- unhook the 12v battery for 5 seconds.

If the problem is no longer present, then the lights should go away.

It is worth the (under $50) expense for a tool/app that can help you see live data as well as clear codes.

I've attached a photo of the kind of info you can see live. All battery block data, for instance.

 

Your 12 volt battery is low according to that photo.

 

it would be worth investing in a volt meter for the 12v, and they come in handy otherwise as well.

 

Yeah. This pic was from a car that had multiple issues. 12v battery turned out to be fine, but connection to negative post was loose. Customer forgot to tighten it when replaced the 12v.

 

Wouldn't be the first time I heard that! LOL.

 

I'm afraid, you must ha e skipped some of the procedures.
Did you cycle them, or just a more QUUCKER way, put the donor modules in there, and just drive?
You'd definitely have those signs showing up on the dash, if you didn't cycle them to bring those three modules, and your existing pack to equal capacity, and, probably voltages.

You might also want to reaarange the middle modules toward the end of the pack, for better air flow.

Can you display the block voltages here using tech stream? That software isn't expensive. You could get it on eBay, or so, for some few bucks.

Nice try though, being able to even ripped up the pack, and replace the modules.


Dxta

 

The instructions for the Prolong system are here.

 

You could read up some of the threads on battery balancing and stiffs like that.

If you're not in a hurry, a d you've got some time, buy some of the hobby chargers online, and perform the cycles. But if you ain't gat no time, you could grid charge the pack, with the hybrid charger being talked about here.

PS: You've got to read a whole lit on the hybrid thread to have an idea what you'd be doing.

Dxta

 

Their FAQ says this:

The next phase of battery failure is a failure light on the dash and cell failure. Our products can still help vehicle owners in this situation, but the success rate depends on how long it has been since the failure first appeared. If this describes your car, please give us a call to discuss your specific situation and learn how much our products can help you and your hybrid vehicle battery.

From Prolong® Battery Systems FAQ - Hybrid Automotive

Whenever @jeff652 swings by he can answer your questions.

 

It would really help to have some live data so that you can assess next steps.

If you can see ahead of time that one module is shorted or has high IR then you know that it needs to be replaced. But if it is simply an imbalance then you might be able to address it with rebalancing.

 

Hi Prodigyplace (I will also send to Jeff652): in my case, the red triangle did show up but immediately thereafter from there, the car went to the dealership and diagnosed parked back here and not used. Does this mean that the charger/discharger will not help us after it was ordered for my valentines gift?

 

From Jeff's comments in your other thread, I think it may help. If not, you may need to replace a module first and then recondition If I were in your place, I would trust the advice from the Hybrid Automotive people.

 

Replace the module (s), then recondition using your Valentine’s Day gift and you’ll be good to go.

Keep us posted .

 

You need to get your hands on basic diagnostic tools so you can read hybrid system codes and freeze frame data, the answer is right there and only the car knows it.

 

I have a 2006 Toyota prius with 451,000 on it so far I've replace 3 modules I do all the scanning with the torque pro app and seems like a car is running good got good power mpg is 38 and the out of the blue the red triangle comes on again I run a scan on it and it saying another 2 or 3 modules is bad its like is it gonna ever end ? Do I need to buy a rebuild battery with the car having that many miles? Are the cells that work out I've ran load test I've balanced them with hobby charger am I doing something wrong or is the pack just tired ? The state of charge battery log on the dash fluctuate so much it will be half then it will be down 2 bars then it will charge up to full or the half mark and then slowy go down when car is running in parked.

 

Hi and welcome to PriusChat.

I'm thinking that you have had a really good run on the original HV pack with only changing out 3 modules so far.

Unfortunately, this is par for the course. And it most likely will not end until you have replaced all modules. So given that it might be time to invest in all-new modules and change the whole lot and be done with it. Depending on the car and how good it is, you could buy a new set of aftermarket modules from newpriusnbatteries.com or a new OEM pack from Toyota.

If it is in not so good shape you could try and buy a battery out of a recent wreck. It needn't be from a Prius – any NiMH pack from a recent Camry, HiHy, Prius c (you will need two packs), etc will work as you will be transplanting the modules into your case.

Without knowing your process, I don't think we could say, but most likely it is not anything you are doing, it is just that you working with old and tired modules.

This definitely sounds like you should be thinking about replacing the whole lot and be done with it.

That is my $0.02 worth.

 

When one module fails in a pack, it is only a matter of time before the next module fails...and the next...and the next.

And on top of that, each time you put in a different module you are introducing more variability. Which increases the likelihood that the batttery will get out of balance.

It's a losing game.

Continue playing it as long as it is still fun for you. But if you need reliability, you may have to move on.