Replaced fuse box housing - transmission "P" lock mechanism appears

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by TechBill, Apr 5, 2026 at 5:21 PM.

  1. TechBill

    TechBill New Member

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    Vehicle:
    2007 Prius
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    Base
    Update

    Removed broken pin and soldered a new pin from junkyard fusebox. Without putting it back in housing, I reconnected all components.

    Park - No red triangle or P Lock on screen
    Reverse - No red triangle or P Lock
    Drive - Red Triangle and P Lock shows up

    But car still moves in reverse and drive

    Must be one more broken connector somewhere.

    Anyone happened to know which pin lol

    One thing I noticed. very rich gas fume when engine is running.
     
  2. pasadena_commut

    pasadena_commut Senior Member

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    Is it also super loud? A missing catalytic converter has both of those symptoms.
     
  3. TechBill

    TechBill New Member

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    Interesting but no. I been driving it and it went off after i replaced fusebox housing. So far I fixed the two broken wires. Still same result. but got code pulled this time.
     
  4. TechBill

    TechBill New Member

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    After fixing two wires in fusebox .. I ran another scan with techstream. It showed up more devices ..


    IMG_1822.jpeg
     
  5. TechBill

    TechBill New Member

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    Location:
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    Vehicle:
    2007 Prius
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    Base
    One thing I noticed different

    I could get in car and hold brake and press start then it ready to drive before I tried replacing fusebox housing

    Now when I hold brake and press start row of yellows dash light comes on but car not in Ready mode .. I waited a minute still not in ready mode

    If I press start second time .. Ready light come on and car will drive but still red triangle and P lock only in drive. not in Park or Reverse.

    Any idea what could cause this condition?

    Going to clear code now and scan again to see what happens.