STRANDED (again) HELP

I let someone borrow my car a few days ago, and they said it left them stranded, with the parking brake error. She was able to get the 12v reset and be on her way .
Unfortunately obviously I couldn't pull the codes, if any.
No I just got out of the junkyard, to replace my blower motor fan that went out yesterday. Replaced in the parking lot, went to get in the car, and I can't move.
It won't ready, it won't turn completely off
The 2 year old TOYOTA 12v battery checks out fine BTW
I have unplugged both batteries, to no avail. The only code that is coming up in the reader is P0300 , using Dr Prius

I've got to get this thing moving!

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Parking LOCK

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We just load tested it 2 weeks ago
I have no way to test beyond the MFD.
I'm trapped in a salvage yard parking lot.

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I'm thinking it's an actual issue with the pawl or interlock in general.
If I move the lever into "neutral" it shows it on the display , but I can't move the car.

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What if I tried to "jump it" at least hook up another battery to it with some cables, so I know it was for sure getting 12+ volts

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I have cables...

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I just hooked up another battery also, and it was reading 12.9 V with both batteries. No change - still park lock mechanism.
Where is the park motor located? How hard is it to fix or bypass? Am I stuck/stranded?

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With the car in neutral, it won't move...as though PARK were engaged

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I said, I'm kinda stranded right now, and I have to work in a few hours.

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Dome lights are on
Which side? Engine or wheel?

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Looks like it's on the top back side? Remove the inverter?

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FIXED

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I love sleep deprivation. Guess what I didn't plug back in and reattach, after replacing the blower motor? And guess what my friend was beating up on the other day to get the blower to work? If you guessed "transmission control module "you win , and I'm a moron.

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Never been so happy to be a moron

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I just took a step back, calm down, retraced everything that happened

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