Readiness codes after HV battery replacement

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by smafixer, Mar 14, 2017.

  1. smafixer

    smafixer Junior Member

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    2007 Prius
    Hey folks first time posting, I've just replaced the hv battery on my 07 after reading all I could on here and watching a bunch of youtube. Decided to go with a new Toyota rather than referb. Red triangle went away but now I've got a bunch of Toyota Readiness codes that won't go away. P1E03, P0171, P3200, P0038, P0001, P0102, P0301, P0120, P2101, P0123, P2501, P0220, P02202, P0325, P3503, P0341
    The new battery didn't come with new electronics to my surprise so I had to swap them from the old one.
    I'm scanning with and Innova 3130 and it says all the codes are erased but obviously not.

    The car will run go into gear etc.

    Any ideas? Help?
    thanks!
     
  2. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Did you try disconnecting the 12V battery? If it was not disconnected when you were installing the new traction battery, that should be done now, for a few minutes to let the ECU's reset.
     
  3. smafixer

    smafixer Junior Member

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    I had it disconnected but I'll try it again, thanks
     
  4. smafixer

    smafixer Junior Member

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    2007 Prius
    Thanks Patrick that did the trick!
     
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