Need help before I buy used prius

I am looking to buy a used 2006 Prius but not sure if it would be a good buy. The problem is when u open the door you get the ding but when you put key in and hit the start button you get nothing the screen in the middle don't come on no lights above that on dash come on you can hear I think what is the fuel pump kick on then there is nothing you can hold the brake and it never is ready is this a common and easy fix or should I not waste my money. Thanks for any help... O0o yea I tried to scan with a scan tool and the port will not power the scan tool on. Thanks

 

I'm getting it for 1500 it has 200000 the lady I may buy from has checked all fuses all fluids and changed one of the computers not sure what one she also has had battery pack checked and one of the packs replaced because it was low.

 

It seems like it's not getting power to anything I mean the touch screen does not come on no dash lights come on and there is no power to the obd2 port so I'm not sure if I should just pass on it.

 

Are the hv batteries that you are referring to the ones that are slim and there is like 26 of them?

 

Ok yea she has had the hv batteries all tested and they are good I was thinking maybe it had a bad ground or a bad fuse since the obd port has no power and would hate to pass it up over a fuse and the wife really wanted it lol

 

It ran perfect she drove it home from work parked it went to leave the next morning and nothing so it's just been sitting but she has been trying to get it going again because she loved it hot heat ice cold ac ran good before this and since it stopped like I said above she has got the battery packs checked she has checked all fluids someone told her it needed one of the computers replaced so she bought a new one replaced it still nothing said she has checked every fuse she knows of did not say if she has checked the 12v one but car will not start at all.

 

Has not been sitting long and no charger as I know of but ran great before this problem

 

Will do is there a time it should stay off before I reconnect it? My wife really loves the car and I really love the mpg since she takes my kids back and forth to school everyday so she does around 55 miles a day not counting if she goes anywhere else. I love building show cars and custom rides but never messed with a hybrid but installing Electronics and wiring just seems to me since nothing on the dash is working and it's not starting and the obd2 port not powering up seems to be a fuse or a ground but not sure. Also the battery in her key fob was dead and she just put a new one in it not sure if that has anything to do with it also.

 

I have not got around to checking the fuses yet she says she has checked every fuse she knows of but that means nothing she don't want to sell the car she just don't have the funds to take it to a dealer and get it fixed and she has put all she can into it trying to fix it I really can't fix it then pay for it if I fix it she most likely will not sell it lol

 

Here is another question for you wonderful people I know if I change a ecm on a regular car that the new ecm has to be flashed for that car. My question is if you change any of the computers on the Prius do they have to be flashed also how many computers are they I know the one she swapped out is behind the seat.