Hi need help and support after electrical short

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Victorio Mo, May 23, 2026 at 1:35 AM.

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  1. Victorio Mo

    Victorio Mo Member

    Joined:
    Oct 6, 2012
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    Location:
    Folsom, California
    Vehicle:
    2008 Prius
    Hi Dear all,

    After cleaning HV fan I installed it back and tested it , everything was normal. Then tried to reconnect custom alarm and accidently make very short electrical short. My bad.

    After this everything went crazy.
    Radiator Fan starting instantly (on cold car). Panel displays some weird staff, see pic. All gear letters lit around letters and start flashing.
    Looks like fuse stayed alive and something else happened, will try to pull radiator fan fuse and read codes . For now disconnected 12V battery.
    By the way is radiator fan on fuse or relay, tried to find it and could not to disconnect

    Appreciate if you have advice .
    upload_2026-5-22_22-31-24.png

    If I'm right main radiator fan is on the same fuse with ECU
    upload_2026-5-22_23-7-15.png

    And the code is U0293 Lost Comm with ....

     
    #1 Victorio Mo, May 23, 2026 at 1:35 AM
    Last edited: May 23, 2026 at 2:46 AM
  2. Victorio Mo

    Victorio Mo Member

    Joined:
    Oct 6, 2012
    139
    36
    0
    Location:
    Folsom, California
    Vehicle:
    2008 Prius