Hymotion PHEV, LED off, Not Charging, Not Assisting

Discussion in 'Prius PHEV Plug-In Modifications' started by mchase, Jun 18, 2018.

  1. mchase

    mchase New Member

    Joined:
    Jun 17, 2018
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    Location:
    Santa Rosa
    Vehicle:
    2009 Prius
    Model:
    Plug-in Base


    I recently bought a 2009 Prius with low miles and a Hymotion PHEV Battery. The Hymotion LED does not light or flicker when I turn the switch on. I do not see the tail lights turn on when I plug the car in. I do not see a display flicker of the battery charging indicator when driving. So obviously the Hymotion system is not working (mpg is not out as high as I would expect with a working system) or charging. The fuse on the battery unit appears to be pressed in the on position.

    I would like to try trouble shooting the system. Where is a good place to start?

    Any suggestion?

    Thank you,
    mchase
     
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