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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    2007 Prius
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    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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    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.
     
  6. Brian1954

    Brian1954 Senior Member

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    Do the Techstream health check when the car is in READY, in drive, and the warning lights are turned on.