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2007 Prius U0100 & U0111

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by djimbuser, Mar 21, 2024.

  1. djimbuser

    djimbuser Junior Member

    Joined:
    Dec 31, 2016
    33
    8
    1
    Location:
    Henderson, Nevada
    Vehicle:
    2007 Prius
    Model:
    N/A
    I picked up a fixer-upper prius with known problematic hybrid drive issues. I replaced the bad/underperforming modules in the hybrid pack and balanced them. The car still has good days and bad.

    First was the complaint U0100 - I replaced the main ECM and the car was happy. Today it's unhappy again complaining about both U0100 & U0111.

    Now the hybrid battery pack itself the ECM was just floating in there with no bolts so I'm not convinced that the one in there is the original. The part number on it is 89890-47092 (red sticker).

    When searching parts on ebay there are other part numbers too that I've found so far:

    89890-47071
    89890-47070
    89890-47090

    Can anyone share any experience about these modules is one better than the others and will any of these part numbers work?
     
    #1 djimbuser, Mar 21, 2024
  2. mr_guy_mann

    mr_guy_mann Senior Member

    Joined:
    Sep 3, 2020
    3,529
    1,611
    0
    Location:
    NJ-USA
    Vehicle:
    2006 Prius
    Model:
    Four
    What ecu's are setting which U-codes? What warning lights are activating? What other symptoms are occurring?

    What scantool are you using? (You need something that can scan ALL systems).

    Posted via the PriusChat mobile app.
     
    #2 mr_guy_mann, Mar 21, 2024
  3. djimbuser

    djimbuser Junior Member

    Joined:
    Dec 31, 2016
    33
    8
    1
    Location:
    Henderson, Nevada
    Vehicle:
    2007 Prius
    Model:
    N/A
    iOS "Car Scanner" - ‎Car Scanner ELM OBD2 on the App Store

    Other symptoms: Turn car on and not ready just a yellow led on the start button.

    Dash lights most commonly lit for these codes is CEL and triangle of death.
     
    #3 djimbuser, Mar 21, 2024
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