How do I get to this screen in TechStream? (Monitor each individual cell module voltage)

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by GreenTea&SaltWater, Oct 27, 2021.

  1. GreenTea&SaltWater

    GreenTea&SaltWater Member

    Joined:
    Dec 9, 2019
    198
    58
    0
    Location:
    Los angeles
    Vehicle:
    2010 Prius
    Model:
    One
    I’m able to easily access where I could see each cell block voltage but I cannot find the option to view each individual module voltage. I was able to access it once months ago and it looked like this in the picture attached, but I can’t replicate it. I’m using TechStream version 10.30.029
     

    Attached Files:

    #1 GreenTea&SaltWater, Oct 27, 2021
  2. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,993
    16,963
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    That screen shot came from somebody who got a P0A0D code and pulled up the freeze frame by clicking the little snowflake next to the code.

    Ironically, there's nothing on that screen that would have been any use to the person who pulled it up. They had a P0A0D code, which is about the safety interlock, and usually only means somebody had the service plug out and put it back without the final click. Nothing to do with battery voltages at all.

    (OK, the Detail Code 2 shown on the screen, 350, was relevant to the problem. But that was already shown in the heading at the top, anyway.)

    To just look at your battery voltages for fun, select the Hybrid Control ECU and click the Data List button.
     
    #2 ChapmanF, Oct 27, 2021
    SFO likes this.
  3. GreenTea&SaltWater

    GreenTea&SaltWater Member

    Joined:
    Dec 9, 2019
    198
    58
    0
    Location:
    Los angeles
    Vehicle:
    2010 Prius
    Model:
    One
    So hybrid control and ECU are two seperate ones. When I click ECU and then data list it doesn’t show battery voltages. When I click on hybrid control and then Data list I do see the battery voltages but it’s just in blocks 1-14. I wanna be able to see all 28 like in the picture. And I’ve tried finding that snowflake next to the trouble codes but since I have the service plug in correctly it’s not giving me an option to
     
    #3 GreenTea&SaltWater, Oct 28, 2021
  4. ChapmanF

    ChapmanF Senior Member

    Joined:
    Mar 30, 2008
    25,993
    16,963
    0
    Location:
    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    An ECU is an electronic control unit. Every one of the two dozen or so choices on your system select screen is an ECU. Hybrid Control is one of them. (So is "Engine and ECT", which might be the other one you are thinking of.)

    If you look again at the picture you posted, you will see there are only 14 voltages shown. That's all you get. The sense wires are all attached on one side of the pack, so they are measuring the modules in blocks of two.
     
    #4 ChapmanF, Oct 28, 2021
(You must log in or sign up to post here.)