2002 Toyota Prius Flood

[Patrick Wong]

Originally Posted by cygnusx1

... Now all the warning lights are gone and running it in generic obdII on my snap-on scanner I get absolutely no codes--reades -0000 no failure, okay to drive...

Hi Nick,

The inverter will not be running unless the car is READY. Since you can't retrieve codes, it might be time to tow the car to the dealer to see if they can help.

Good luck.

[cygnusx1]

I am being stubborn about towing the car to the dealer.... but I may. I was told that I need to leave the car in the on position for 25 minutes for the HV control to adapt to the car? I was going to try this, I'm having the 12v battery charged right now--anxious to get this thing on the road.... wondering if I've crested the hill or if I'm still at the bottom. I will try to take some pics of everything and post here. As an aside, I fixed a civic hybrid last year and this was an absolute piece of cake compared to this prius. I still have the civic and want to compare the two...

[Patrick Wong]

Originally Posted by cygnusx1

I am being stubborn about towing the car to the dealer.... but I may. I was told that I need to leave the car in the on position for 25 minutes for the HV control to adapt to the car? ...

Well, there may be some interaction between the immobilization ECU and the hybrid vehicle ECU that could be the problem. I suggest that you consult the repair manual and see what is required when a new HV ECU is installed. The Toyota proprietary hand held tester or laptop might be necessary to program one or both ECUs. (I sold my 2001 repair manuals when I sold my 2001.)

If that doesn't provide any insight and you don't want to visit the dealer, then you'll probably have to look at the wiring diagrams and the diagnostics portion of the repair manual, figure out how the ECUs communicate with each other, use an oscilloscope on the signal lines to see what you can see, etc.

[cygnusx1]

SUCCESS!!! Had the little battery charged at the local battery shop overnight... installed the battery and let it sit for 25 minutes with the key in the on position. Shut it off and tried to start it and boom it started!! Yay! However at this point the triangle flashed and it abruptly shut off. Now I was able to pull the code P03191--gas engine not functional or something like that... cleared that code it started again... this time the gas engine started let it run for 10 minutes drove it around the block and seems to be no issues--no check engine lights or anything. Now, just have to finish the bodywork... Thank you for the help--I'll update later...

[Patrick Wong]

Congratulations on your success!

I suggest that you look at the traction battery state-of-charge gauge on the MFD and see where it is. It normally will be showing half or 3/4 full. If lower than that, it would be a good idea for you to make the car READY for at least 30 minutes or an hour, and allow the traction battery to charge up. This will also charge up the 12V battery.

DTC P3191 is a general "engine does not start" code. If it reappears, I suggest that you do a tune-up: replace the iridium spark plugs, clean the throttle body interior and throttle plate, replace the engine air filter if dirty, and make sure that the engine oil is 5W-30 viscosity and is not overfilled.

[statultra]

i had that issue with the 01 prius i bought that was in a severe crash, i believe the engine does not start code comes on in relation to throttle body not being used in a while or something, once i erased it the car started perfectly fine.

Does you SRS airbag computer give a fault on the dash?

i recently purchased a 06 tacoma brand new from a dealer 12,000 less than MSRP that was flooded, it ran fine just the airbag computer is bad

[cygnusx1]

yes, I will need a new airbag computer but that is not a biggie as far as I'm concerned... the motherboard has some "gradu" on it....

[statultra]

as long as the airbags are good, and the sensors, you can buy a new computer from junkyard.

Car-Part.com--Used Auto Parts Market is good place to find stuff