Key not recognized after inverter pump fail

2007 prius was running, key in slot, hood was up. noticed smoke from just below fuse box (assuming it was the pump) and turned off. Checked under hood and couldn’t tell anything. Tried to start back and car no longer recognized the key. The door ajar alert works, as does the headlight indicator and some other things but NOT the windows and not the fob unlocking doors (but not sure if it ever did). Tried smart key button, touching fob to start button, jumped 12v (from front and from rear), changed inverter coolant pump, put new 15a fuse (for some odd reason I had a 10a there instead of 15). Dealing w this for past 6 months now and forgive me but I did NOT think to check the fuse when it first happened (not the daily driver and I have several gen 2s so the details are sketchy). 3 months ago Was out of town and sent an associate to fix and he said he changed the pump but upon my return car was in same state (not recognizing the key) so I swapped a known new pump just to be sure (and kept the old). Associate has been out of contact so can’t ask him much at all. Will change the fob battery and try again just to see, since it’s been so long

 

Thanks a million. Will do. Only reason why I suspect the key issue has something to do with the inverter : the smoke I saw. That was the only clue. Nothing else changed and it was instantaneous. Things were fine; and then they weren’t. I had been driving the car all month. Very odd

 

I just re-verified that the fob battery is good (red light ) and the am2 15A fuse is good and the pump is currently not connected and jumping 12v using jump box at rear. Same results (I know the electronics aren’t totally dead bc the door ajar alert and a few other things are still working

 

Updated : the key recognized now. I’m not sure what did it: changing the fob battery, actually touching the fob to the start button, ensuring strong jump, etc. And now the struggle will be to get the Ready to come on (and to resolve this red triangle)

 

Thank you for this. The scanner shows no codes; even with the triangle present. Clearing the codes does not resolve

 

The pump was not connected so as to eliminate that variable. I’ve since connected it. I’m pretty sure in one of the other gen2 vehicles in was able to get it done that way (but notes have been destroyed so I cannot be 100%). I wonder which other fuses might blow. At this point I have the car recognizing the key; just trying to get the Ready indication now. I am appreciative of this [and all other] feedback

 

UPDATED: waited ten minutes with 12v disconnected and that worked. Note that the triangle came right back but by then the car was started. I’ll leave this post up
in the small chance that it might help someone in the future (maybe even me)… Daily driver (no glaring issues with this one) but I had seen the red triangle yesterday while driving (code said hv issue) and made the note to look further into it. Today I’m on my way to autozone and made quick stop. Upon returning to car, I get triangle and no ready. Normally think clearing the triangle would allow me to at least get the Ready so as to get home… but I absentmindedly left my scanner in one of the other cars. At this point, stuck and need to find a way to get to Ready. Unplugged -reconnected positive terminal, pressed start twice, held down start, … Wonder what are some other hacks to try. This is a gen2 other than the one posted earlier this week (where the key was not recognized)

 

Maybe try the safety plug on the hv? It’s pouring rain. Might not be safe but that might reset whatever the fault is/was. Either that or walk home… or continue to google and wait for the Priuschat gurus that have been saviors in the last…