'09 Prius, 240k, code P1D00, and P1D001

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by downeastah, Jul 15, 2019.

  1. downeastah

    downeastah Junior Member

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    2009 Prius
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    Yesterday, while driving home, my check engine like came on. Scan gauge showed that the volt reading, while driving fluctuated from 12.9-13.6 V. Temps good, OAT was 85F. When I got into the driveway I checked for code readings and got P0000, P1D00, and P1D01.
    Not sure what FRZD means, but that showed up also.
    I am the original owner and have tried to take good care of her, but this has me worried.
    Should I be worried?
     
    #1 downeastah, Jul 15, 2019
  2. bisco

    bisco cookie crumbler

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    check the gas cap for tightness.

    not sure those codes are correct, or you might need sub codes. start by testing the 12v after the car has been off for 4 hours.

    once confirmed good/charged/replaced, read the codes with tech stream, torque, dr prius, hybrid assistant, etc
     
    #2 bisco, Jul 15, 2019
  3. SFO

    SFO Senior Member

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    If the CEL came, on it did so for a reason.

    As @bisco said, your scan gauge product isn't capable of reading all of the Toyota DTCs, best to visit a local parts store and borrow another.

    If they don't have a Toyota Hybrid compatible scanner to loan, think about buying a bluetooth device for a few dollars or a generic cable for 20. One requires an android device, the other a laptop or table with a USB port and windows.

    Could also take it to a friendly mechanic who would scan it for free, or the stealership if feeling rich (or if they offer free scans like my own).
     
    #3 SFO, Jul 15, 2019
    downeastah and Raytheeagle like this.
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