Help needed!!!!

The P3000 isn't that the control or battery control warning You said the battery blew up so when this happened and you took your battery apart did you see the white gel acid residue all over the place on the bottom of the battery tray the sheet metal that the cells sit in? Did all that get cleaned up like washed off with the water something? Did any of this leaking gel electrolyte business get over near the main relays and the battery ECU which is on the front end of your battery it unbolts off of it All of these areas are suspect when electrolyte out gases and does its thing is pretty powerful stuff and so what it's saying you're control is bad I have four or five here I thought most people had at least one if they've dealt with their battery at all maybe you should just take a look at that battery ECU at the front end of your battery there's a connection point or two up there that tends to get real ugly and may need to be rectified with a cutout plug from another car another ECU from another car whatever it is you Deem not looking well.

 

did you complete the third step on the orange safety plug?

watch

 

P3000 is the Hybrid Control ecu saying, "hey, the HV battery ecu has codes, you should go over there and check it out".

Your scantool should be able to get those codes (scroll further down on the codes screen?). I would expect that you will find P0A80 - "replace HV battery pack". Your screen captures show block voltages that are all over the place. Any differences of 1-2V is usually a bad module. The ecu is "happy" (no codes) when block voltages are within 0.3V most of the time.

Did you check the orange connector at the battery ecu for corrosion? Did you clean or replace the busbars? Did you torque all the battery busbar nuts to 48 INCH pounds with a torque wrench?

How long was this battery giving codes or problems before it blew up? Any history on previous work done on it?

Use the search function on this site to find more info on module replacement and "balancing".

Posted via the PriusChat mobile app.

 

As mr_guy_mann mentioned, the P0A80 is from the battery ECU and is the primary report of a problem with the battery, and the P3000 is just a code from the HV control ECU that means "hey, go get codes from the battery ECU".

Also, the C1259 and C1310 from your ABS/VSC/TRC ECU both just mean "hey, go get codes from the HV control ECU", which means the P3000, which means to go look at the P0A80. So those all stem from the one original cause.

Your C0200, C1345, and B1423 are all separate issues that you also happen to have and can be dealt with in their own time, but the battery is probably the most pressing.

The B1421 is a non-issue; that code just exists so you have a way to tell if the solar sensor is working. (Any time there's enough light shining on it, the code goes away.)

 

You'll see a very common recommendation here to just replace the battery for a P0A80. There are ways of delaying the inevitable by replacing a module here and a module there, but that can become a recurring game of whack-a-mole.

The battery is made of 28 modules of six 1.2-volt cells each, 168 cells total. The smallest unit you can replace is a whole module; there's no replacing of cells unless you have a saw, and some way to weld plastic.