Gen 1 Replaced the 12v battery backwards (Ouch)

@bisco @Patrick Wong @bwilson4web @ChapmanF

I bought a 2001 prius from a lady that replaced the 12v battery backwards (OUCH)

After I paid for the car and towed it home i began the task of getting it to run again.
So I found that the 100a fuse popped as well as the dome and ABS fuses.

I replaced them and got the car running again. (SWEET)

The Triangle with Exclamation is ON
The ABS and BRAKE lights are ON
The Check engine light is OFF
The Display screen shows the Exclamation over car (Third Icon)

When I drove the car it felt like there was no power to the brakes.
and there was not full power steering.

Did the jumper from Pins 4 to 13
got 31 and 54 Blinking on the ABS Light
and 15 Blinking on the Air bag light.
So (c1215, c1231 and c1254)

Questions:
Did all these things fail on the car? (could be related to backwards battery fuse popping)
Could it be something that needs to be reset?
Did the fuses protect these somewhat unrelated systems? (are there relays that I might have missed)

Stumped at the moment.

Any help would be greatly appreciated

 

@bisco @Skibob

I am ordering the mini VCI right now.
Should I get the chilton or haynes?
Thank you,

 

Great advice
I used the Multi Meter and came up with

Optima Red Top Starting #34-78
12.35v When the car is off
and
13.97v While the engine is running

Do you think the battery is bad?

-----------------


I do have a few of extra batteries in my garage:

a second Optima Starting #34-78 (resting at 12.63v)

Duralast Gold 25-DLG (resting at 12.45)

Optima Yellow Top Deep Cycle + Starting (resting at 13.08v)
The thing about the yellow top is that the post on the top are half the size of regular batteries.

Thanks again

 

So I got the MiniVCI and hooked it up.
got a bunch of codes.
c1521 - Power steering gear assembly with motor
c1522 - Power steering gear assembly with motor
c1553 - Power steering gear assembly with motor
b1100 - Airbag sensor assembly
c1251 - Hydraulic brake booster pump motor
c1254 - ABS Pressure Switch Circuit
c1256 - Accumulator Low Pressure Malfunction
p3135 - Circuit Breaker Sensor Malfunction

It makes sense that I got c1521, c1522, c1553, b1100, c1251, c1254 and c1265
because those fuses blew,
All I had to do was put in new fuses for the ABS and Power Steering and clear the codes with techstream
then the p3135 would keep coming back every time i turned the key. I tested the Circuit breaker sensor with a ohm meter
(Circuit breaker sensor resistance: 820 ± 82 ohms) It was at 819ohms so it was perfect.
then checked the wires from the ECU to the sensor and "PRESTO" the green with red stripe was loose.
So I reconnected the Wire and plugged it back in. Cleared the code and turned on the car.
The display screen on the dash said Problem resolved.

Thank you all for the wonderful help.