Battery about exploded

Glad to hear you survived the close call, please be more careful in the future.

If you included a location in your profile it might be easier to offer help.

First, you should start with a hybrid compatible code reader like a mini-vci ($15), or at least an OBD2 adapter ($1) with an app

Without knowing which obd2 codes are currently being thrown its difficult to offer much help, but lets try the guessing game:

Did you properly replace the orange safety plug?
How is the 12v battery holding up, might it need charging?

 

1. ok
2. ok
3. ok..at least you know what you have going on
4. ok. Would have been better to not use your car for that trip.
5. yikes....never disassemble a battery immediately after being removed from a running car. Those modules have been charging like crazy since you were driving it with a fault code. Sounds like it was reassembled HAed.
6. you didn't run it too hard, you just ran it and then tried to disassemble it while it was hot and overcharged from being driven while faulted. You've most likely damaged a bunch of those modules by unclamping them while they were hot like that, allowing them to bulge (probably significantly)
7. You're going to need more than 4.........
8. In this case, correct order probably isn't as important as correct polarity...and it sure could be.
9. got stretched? replaced? which cable was that? you had an extra sitting around?
10....
11. Are you sure things are correct? I'm curious how you got the modules reclamped and mounted properly after the bulging? Maybe I'm just imaging it to be worse than it really was. Sounds like the safety disconnect may not be installed completely with the third step of pushing the handle downward to satisfy the interlock, but........

you couldn't pay me enough to stand within 10 feet of this battery when/if it goes live....................
your battery scares the hell out of me....
you just don't know enough for it to scare the hell out of you..which makes it dangerous
I wish you the best of luck...be careful.

 

diy deadly batteries can be hazardous to your health...

 

My initial concern is about the "transmission" fill by a car place. It's not a transmission, it's an eCVT, and there should never be a reason to fill it unless you're replacing the fluid. Not knowing exactly what codes you started with, I'm suspicious of what that "transmission fill" may have damaged.

I'm afraid you probably have done so much damage taking the traction battery apart hot like that that you're better off getting a full set of cells. A new harness might be in order, too. They get pretty corroded and the old one will give you troubles down the road assuming it still works at all.

But before you invest anything in a battery, make sure that the car shop hasn't screwed up your CVT by putting in too much or the wrong fluid.

 

+1

 

good job jamming in the swollen batteries

 

Try to find the lowest priced Toyota new battery pack you can find and replace the whole thing. Your life is more important than a few dollars.

 

Check to see if you connected the sensing wire to the safety disconnect. There are three wires that plug into the HV battery from the car harness. The big one goes to the ecu. The medium one is power for the relays, etc and the small one goes to the safety disconnect. It plugs in at the top of the battery, but the wire leaving that plug goes down the back of the safety disconnect and plugs into a receptacle at the bottom. This gets forgotten about quite often. Leaving it unplugged at the bottom or not fully plugged in is exactly the same as not performing step 3 of the disconnect installation procedure.

 

Please don’t chance it with those batteries. The damage is done. Get a new or refurbished entire unit.

 

This sounds like another a high voltage leak. Have you tried disconnecting the 12 volt battery to clear the codes?