P0AA6 explanation

I don't know if that's the case or exactly what's happened or if the insulation is just broken down in the compressor from age 240,000 mi I think The car was owned by people that were in the trades so it's very possible it had its air conditioning service at one time at some place that wasn't up on electric compressors and the dielectric fluid needed or whatever the problem is with the oil. And that may have been done incorrectly which sped up the destruction of the compressor but still at $240,000 that's not horrible

 

I'd think you could get it all fixed up for less than that, with some shopping around.

 

I meant not bad for 240,000 mi. This is something we need to change the compressor for correct because the windings are something internally is damaged from running oil that is I guess conducting electricity and wreaking havoc on the system I can't just flush it all out clean it put the right oil in it and gas it back up because the damage is done correct?

 

It coded again today when my other half got in the car ready to come home from work she had to clear the codes twice with our Inova scanner and then the car of course like everybody else's boots right up no lights on the dash at all and drives perfectly all the way to the store and back to the hacienda here I'm sure it was the P0AA6 code with the same subcodes that we're dealing with here funny thing is is I've got the air conditioning unplugged so I guess I'm back to the HV battery computer it looks like there is no wiring issues anywhere everything on this car is whistle clean wire and connection wise everything looks essentially like brand new garage all these years whatever.

 

If it is still telling you P0AA6-611, then you'd be doing yourself no favors to ignore what it's telling you and go back to looking at the other end of the car.

If it's saying 611 and the compressor's unplugged, start looking at the rest of the stuff in the 611 area: the wiring to the compressor, and its connections within the inverter.

 

Now it's 612 sub I've got battery open and see nothing but clean . Showing 56 point some odd volts at the orange plug bolt with the other lead grounded holding steady what voltage am I looking for at this stage with the orange plug plugged in the relay closest to the front of the car shows 94 volts DC and the relay behind it is showing like 124 volts everything looks very clean I'll have to pull the battery outside ways and get a flashlight and look underneath to see if I see any leakage I push the very lightly damp piece of bounty across the bottom of the case with a piece of wire and drug it back out It doesn't smell or taste like there's any battery acid on the piece of bounty I hate to break the whole battery all the way down for pretty much no reason this battery looks like it was just while I know it was just built and assembled it has lines on all the cells blue and black marks I called the kid who built the battery and he said everything seems normal as far as you can tell. I'm just not sure what kind of volts I'm supposed to see on the orange plug the bolt when you're doing the test from that bolt to the case or ground.?

 

Yeah it's interesting how the code is migrated from 611 to 6:12 so from the air conditioning inverter circuit up front now to the battery in the back. The battery in the back is clean as a whistle I mean it's ridiculous I've never seen a battery so clean inside course most of them I've taken a part of Been at $250,000 mi

 

Tom, you crack me up!!

 

A Prius NiMH battery doesn't have any acid. The electrolyte is a solution of potassium hydroxide (or a mixture of potassium and sodium hydroxides), both strong bases.

 

The leaking battery in the '04 is a factory battery there's a bunch of white krusty crap on the bottom of the tray in between some of the modules that same krusty krab is there If I wet my finger touch the krusty crap stick it to my tongue it tastes like battery acid although yes you're right it's not liquid I have read about some people trying to re-wet these things and all this kind of nonsense not having any of it.

 

It tastes like battery alkali.

For most people, acids will taste sour, bases will taste bitter. When was the last time you licked some H₂SO₄ to compare the flavor to this KOH?

It's ok, I'm really not advocating licking either stuff.

 

A long time I guess but that's my go-to methodology must have worked pretty well looks like I'll make it to almost 80 so I'm not going to worry with it now. Whatever it is it dries and turns white and it came out of the battery and it helps it make its electricity does whatever it does chemically and it's leaking so we're throwing that mess out and putting in something that doesn't do any of that sort of nonsense then we're driving without lights and crazy crap going on just because it's old and leaking and wore out.

 

Is there any new update on your P0AA6 code ?

 

Yes the guy that built the battery for me came back with another one changed it it past the test with the voltmeter and the battery is isolated The one he removed that he built 6 weeks prior was no longer isolated He said he could feel it when he picked it up. I don't know exactly where the isolation took place there was no leakage onto the painted beautiful battery tray so I'm guessing one of the screws broke the plastic on one of the modules and was grounding to the frame that way I'll have to ask him next time I talk to him but by then he'll have been through 20 more batteries or so so I'm sure it's hard to remember one from another but those bottom screws are a common spot for these things to fail seems to me the rack squeezed together and then the slots on the ends of the rack itself bolt down to the case there's really no need to have those screws in the individual modules even in an accident long as they're covered by that top cover they're still bolted to the tray but just the tubular frame and plastic ends are bolted The modules and factor squeezed and not individually bolted to the tray bottom.