P0A94 code DC to DC converter

I was driving on a hot day recently. As I hit the gas in a tight merging situation I had a sudden loss of power. I was able to safely pull over and I had the red triangle warning light, the VSC light, the Check engine light and the yellow exclamation light.

I had previously purchased a techstream dongle and associated disc, but never really got it working. I had the code read on an innova code reader. I know that may not be enough information without techstream, but any thoughts on what the next move troubleshooting would be?

 

I'll check on my operating system and your other questions and get back to you asap.

 

It's a windows 10 OS. 64bit. I downloaded the software and I think that it wouldn't connect, but it was trying. That was a while ago. I'll try it again today and post my results. Thanks so much for any help anyone has to offer.

 

Im using an innova code reader and I did attempt to clear the code on my car(perhaps foolishly...) The code came right back, but I don't really know if that makes the freeze frame data useless or not.

The current code is P0A94 and I don't yet have my techstream up so I don't have the 3 digit code. The current Freeze frame data is:
Calc Load 0.0%
ECT 70%
Eng RPM 0
Veh Speed 0
IAT 77
TPS 14.1%
Run Time 0
Warm Up DTC clr 0
clr dist 0
ECU volts 13.281
Ambient 66
ACC Pedal D 16.1%
ACC Pedal E 31.8%
Clr Time 0h9m

 

I was also able to take the following Live Data for the Prius
PCM PID 1/37
Fuel Sys 1 0L
Fuel Sys 2 n/a
calc load 0%
ECT 59
STFT B1 0%
LTFT B1 0%
Eng RPM 0
Veh SP 0
Spark Clre 5.0
IAT 63
MAF .01lb/min
TPS 14%
O2S Loc O2S11
O2S12
O2S B1 S2 0.000v
OBD SUP OBD II
Run Time 0
MIL Dis 0
Lambda b1S1 .999
O2S B1S1 3.296
Command Evap 0.0%
Warm Up DTC clr 0
Clr Dist 0
Evap VP .3
Baro 30 in Hg
Cat TE 11 1248
Cat TE 12 1027
Load Value 0.0
Eq ratio .337
Rel TPS 0.0%
Ambient 59
TPSB 47.1%
Command TAC 16.9%
Mil Time 0
Clr Time 0h21m
Evap_VPA 405.128 in H2O

 

I also had these codes: C1259 and C1310, C0210, C1238. The last 2 were cleared by reseating the right rear wheel sensor.

 

Hi Bisco,
Doesn't Torque Pro require android? Is there one of these apps that works with iphone.?

 

Thanks SFO, I'll load these up and give it another try.

 

Now the 12v battery seems to be totally dead. Could this be a 12v battery issue, or have I just killed it by trying to get techstream working 5 or 6 times.

 

Im not getting anywhere with connecting to techstream. When I load the program it seems to be working and then when it tries to connect I get an error that says vim or vm error. Any one have any experience with that. I couldn't get the virtual box to work either.

 

After much struggling I was able to set up a VirtualBox and get a version of techstream running. Keeping in mind that I've spent no more than ten minutes noodling around in techstream. I've got the P0A94 code with 555 as the additional 3 digit code from the freeze frame and it also says DC to DC converter performance. Can anyone help me with what my next step should be? I'll be back at it tomorrow, anything else I should look up on techstream that would help. Thanks

 

Thanks SFO for the detailed work up page on my DTC. I'll post again if I get stuck.

 

In terms of my experience with the virtualbox, for me the links that were provided didn't simply double click and start working. I don't really know why except I assume it relates to slight differences in operating systems, etc. I was able to go back to the internet and get a slightly newer version of virtualbox as a download from the Oracle sight. When I downloaded it and got it running, it didn't include any of the virtualbox setup that would have been part of that original link, so I had to set up the new operating system in the VB and troubleshoot a few complications that came up. I went back to google and oracle searches to figure out what the issues were. When it seemed to be working I re-imported the techstream from the link above and the first one again didn't work, but I was able to use the second link that was provided to me in a previous post and assemble the software and the various drivers and also figure out how to load them into my new VB. At 9pm last night I figured out the final step which was having the VB recognize the USB device using the correct driver and it finally worked.

If anyone is having trouble going through this and wants to ask specific questions Im happy to try to help with specific answers.