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Dummy lights coming on

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Tmclites, Jul 1, 2020.

  1. Tmclites

    Tmclites New Member

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    Location:
    Oregon
    Vehicle:
    2007 Prius
    Model:
    N/A
    Hey y’all,

    been getting 3 dummy lights (the ones relating to my breaks) coming on when I start my 2007 Prius with the parking break engage. It beeps and they stay on for a few seconds, then go off. What’s the deal?

    Thanks!
     
    #1 Tmclites, Jul 1, 2020
  2. SFO

    SFO Senior Member

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    Location:
    Northern California
    Vehicle:
    2007 Prius
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    Welcome to PriusChat!!

    Happen to have any OBD2 codes (DTCs) that you can share with us?
     
    #2 SFO, Jul 1, 2020
    Raytheeagle likes this.
  3. Tmclites

    Tmclites New Member

    Joined:
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    Location:
    Oregon
    Vehicle:
    2007 Prius
    Model:
    N/A
    What’s an ODB2 code? Lol
     
    #3 Tmclites, Jul 2, 2020
  4. SFO

    SFO Senior Member

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    Location:
    Northern California
    Vehicle:
    2007 Prius
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    When there are dummy lights on the dash, that means there are OBD2 codes (DTCs) stored in the ECUs (computers).

    Find a toyota hybrid compatible OBD2 scanner, retrieve the DTCs, then post them here for additional guidance.

    Buy a OBD2 bluetooth/wifi adapter and use an app like Dr Prius, or buy a "mini-vci" cable and a copy of techstream (dealer tech software)/

    This link can help educate you on which adapter to purchase : Hybrid battery diagnostic and repair tool for Toyota and Lexus

    Try borrowing a scanner from one of the local auto parts chain stores, or maybe the dealer will give you a free scan.
     
    #4 SFO, Jul 2, 2020
    Raytheeagle likes this.
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