Car Scanner Pro app for Diagnostics

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by A.J, Oct 10, 2025 at 4:00 AM.

  1. A.J

    A.J Junior Member

    Joined:
    Dec 13, 2023
    50
    4
    0
    Location:
    Worldwide
    Vehicle:
    2010 Prius
    Model:
    Base
    I see only few people talk about Car Scanner Pro app on here for Gen 2, so i am opening this thread to show how cool this app is for Gen 3 too.
    I got it yesterday and so far, it's amazing. If you have an experience with it, you can also share.

    PROS:
    -It has alot of sensor reading for Prius
    -Customisable Dashboard
    -Custom Action PID
    -Coding

    CONS: Electric Pump RPM reading isn't functional for me at time of writing.

    I can display upto 30 sensors and action on the app dashboard, which includes Engine, Battery, Distance since codes clear, warms up e.t.c
    Also create a custom action to clear DTC on the go without leaving the Dashboard screen. (04 is the custom command for ELM327 DTC code clearing)
    IMG_0356.PNG

    My current Dashboard look:
    IMG_0361.jpg
     
    #1 A.J, Oct 10, 2025 at 4:00 AM
  2. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    9,918
    6,119
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    Car Scanner coolant temp diagnostic aids

    IMG_0266.jpeg

    Stuck Exhaust heat Recirc valve coolant temperature sensor in red
    priuschat overheating capture.jpeg

    Good exhaust recirc valve
    v red exhaust recirc temp vs green engine temp.jpeg
     
    #2 rjparker, Oct 10, 2025 at 8:04 AM
    xliderider and Brian1954 like this.
  3. VelvetFoot

    VelvetFoot Member

    Joined:
    Sep 17, 2025
    217
    55
    0
    Location:
    New York State
    Vehicle:
    2026 Prius
    Model:
    LE
    Text output works on CarPlay.
     
    #3 VelvetFoot, Oct 10, 2025 at 8:20 AM
  4. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
    2,029
    793
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    CONS: It is not capable of communicating with all the ECUs in a Gen 3 Prius, but it comes very close. You just need to know its limitations. https://priuschat.com/index.php?posts/3564647

    It is a very nice app for most people to use. It is better than 95% of the scanner apps that are available. I like it very much.
     
    #4 Brian1954, Oct 10, 2025 at 8:35 AM
  5. VelvetFoot

    VelvetFoot Member

    Joined:
    Sep 17, 2025
    217
    55
    0
    Location:
    New York State
    Vehicle:
    2026 Prius
    Model:
    LE
    I'm curious how it compares with OBD Fusion, which also communicates to CarPlay?
     
    #5 VelvetFoot, Oct 10, 2025 at 8:47 AM
  6. Brian1954

    Brian1954 Senior Member

    Joined:
    Jan 31, 2021
    2,029
    793
    0
    Location:
    South Central PA, USA
    Vehicle:
    2011 Prius
    Model:
    III
    I do not use the OBD Fusion app. Maybe someone else can answer your question.
     
    #6 Brian1954, Oct 10, 2025 at 9:00 AM
    VelvetFoot likes this.
  7. xliderider

    xliderider Senior Member

    Joined:
    Apr 19, 2012
    8,138
    3,274
    0
    Location:
    Honolulu, HI
    Vehicle:
    2011 Prius
    Model:
    Three
    Has anyone been able to get the inverter coolant temp to display in Fahrenheit instead of Celsius in the Car Scanner Pro app?

    For some reason, the global setting of imperial measures doesn't apply to the readings from this sensor.

    I can confirm that the engine coolant pump rpm sensor doesn't return any value. On the other hand, inverter coolant pump rpm can be monitored, but it seems to be a constant value.
     
    #7 xliderider, Oct 10, 2025 at 1:11 PM
  8. rjparker

    rjparker Tu Humilde Sirviente

    Joined:
    Jun 6, 2008
    9,918
    6,119
    7
    Location:
    Texas Hill Country
    Vehicle:
    2012 Prius v wagon
    Model:
    Three
    The inverter temps work in f for me.

    aa inverter temps.JPG
     
    #8 rjparker, Oct 10, 2025 at 1:48 PM
    VelvetFoot likes this.
(You must log in or sign up to post here.)