Transponder, Smart System ECUs or key fob? B2557

Happy and safe New Year, all. I'm back after my stint in Alaska. I'm concerned that I might be throwing money at a money pit.
It use to be that the codes would clear when I disconnected the 12v battery. The car wouldn't start until I cleared the codes like
that. Now it starts all the time but I can't clear the codes.
I changed both front speed sensors and disconnected the battery for 20 hours. I started the car and drove it into the garage.
With the engine running I got codes
P0102, mass airflow circuit low, (current, pending & history).
Code Po113, Intake air temp circuit high input.
ABS/ VSC/ Trac code C0200 Rt speed sensor (Freeze Frame Data)
ABS/ VSC/ Trac code C0205 Lt Speed Sensor (current)
C-1341, Hydrolic System, (current)
P0AC0, Hybrid Battery Pack (current)
P3000 Hybrid Control P3000
B1421 Solar sensor
B1442 Air inlet damper control
B1271 Combination meter ECU communication stop, (history)

That's after the front speed sensors were changed.
The breaks feel different. They're solid, not feeling like power breaks. It has fluid. I locked up the breaks on wet grass and
I believe the left front tire skidded.

Do I have a money pit? 2005 Prius with about 90,000 miles on it. All in all, the car is in nice condition otherwise.

Thanks everybody.
Chris

 

Thanks, Danny, for the fantastic reply.

I'll contact Matt at Texas Hybrid for a combination meter

I don't know how to delete the codes. I pulled up the Freeze Frame info and there was a huge list. I'll write it below. I highlighted
each one and deleted it. When I turned the car off and back on I rechecked it and it was exactly the same.

C0200 Front Speed Sensor RH Circuit C1310 HV System Malfunction
_________________________________________________________________________________
Detailed Freeze DTC Value: 252 156
Stop Light Switch off on
VSC/Trac off off
Shift Lever Position fail D(M)
Operated System No Sys No Sys
Number of IG ON 31 31
Vehicle Speed 9 0 MPH
Steering Angle Sensor 1143 1143 deg
Yaw Rate Sensor - 128 0 deg/s
Master Cylinder Sensor 0.47 0.47
Pedel Stroke 1.04 1.30
Throttle Sensor 0 0 deg
Master Cylinder Grade 0 0 MPa/s
Right & Left G -1.49 0.06 G
Back & Forth 0.00 0.00 G
Buzzer off off
Reservoir Warning SW off off
Parking Brake SW off off
FR Wheel Cylinder 0.47 0.76 V
FL Wheel Cylinder 0.45 0.72 V
RR Wheel Cylinder 0.45 0.80 V
RL Wheel Cylinder 0.49 0.82 V
Accumulator Sensor 3.52 3.58 V
Master Cylinder Sensor 2 0.45 0.45 V
Pedel Stroke Sensor 2 3.90 3.62 V
MTT 0.00 0.00 V
IG 1 Voltage 0.00 13.80 V
IG 2 Voltage 0.00 13.65 V
BS 1 11.62 12.94 V
BS 2 11.62 13.02 V
VM 1 10.99 13.10 V
VM 2 10.99 13.02 V
+B1 12.30 13.72 V
+B2 12.30 13.79 V
FR Target Oil Pressure 0.00 1.4 MPa
FL Target Oil Pressure 0.00 1.4 MPa
RR Target Oil Pressure 0.00 1.5 MPa
RL Target Oil Pressure 0.00 1.5 MPa
SLAFR Solenoid Current 0.00 0.00 A
SLAFL Solenoid Current 0.00 0.46 A
SLARR Solenoid Current 0.00 0.68 A
SLARL Solenoid Current 0.00 0.70 A
FR Wheel Speed 0 0 MPH
FL Wheel Speed 0 0 MPH
RR Wheel Speed 0 0 MPH
RL Wheel Speed 0 0 MPH
Capactor Mode off off
ECB Solenoid (SCSS) off on
ECB Solenoid (SMC1) off on
ECB Solenoid (SMC2) 0ff on
Motor Relay 1 off off
Motor Relay 2 off off
ECB Main Relay 1 on On
ECB Main Relay 2 on 0n

The 2 front speed sensors came from Rock Auto for $58 total. They were over $500 on island. Not Toyota brand.

The only other code in the ABS/ VSC/ Trac that had a Freeze Frame icon was C1310 HV System Malfunction. Since it
looks like the same Parameter list I'll include it in the list above so I don't have to write it all again. It's the last 2 columns.

Regarding C1341, I'm not able to get any sub codes. There's no Freeze icon on the left to click on. The magnifying glass
on the right says that there's a malfunction only.

Another weird thing I'm seeing is that sometimes the panel monitor shows the battery real low and then pretty full. It
kind of jumps back and forth in an unusual way.

Does this site sell the parts I may need? I'd like to buy from the guys helping me.

Thanks again!

 

That might not have posted on this site how I wrote it, with spaces but when I clicked reply to write this sentence it shows
how I wrote it.

 

Well, with the HV batteries' failure imminent it doesn't seem worth fixing. I'm reading those batteries alone cost $3100.
Surely, the car can't be worth much more than that with new batteries and all these other bugs fixed.

 

I wanna thank all you guys, (and gals) for you help in my struggle here. You've saved my throwing money at the local dealership,
who I don't trust, and gave me the education to make a logical decision about what I need to do. I've spent maybe $150 trying to
figure out what needed to be done and Toyota wanted near $3000 before the inevitable battery failure. I wish we could share some
smoked Alaska salmon with you all and we could do damage to my kegs in appreciation for what you've done. You guys rock! Mahalo.