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When does HV Bat cooling fan come on 2004

Discussion in 'Gen 2 Prius Technical Discussion' started by soapman, Jul 29, 2012.

  1. soapman

    soapman New Member

    Joined:
    Jul 28, 2012
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    Vehicle:
    2004 Prius
    Model:
    N/A
    My inverter over heated. Looked at reservor for motion of water saw none. Took car to toyota for pump recall.When I got it back I heard the pump. Never heard it before. I don't think it ever worked. & water is flowing in reservor now. Now I am thinking about the HV bat. fan because I never have ever heard it working. When does it come on and how could I test it?