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2007 base head light issue

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by Autoconfig, Jul 20, 2015.

  1. Autoconfig

    Autoconfig Junior Member

    Joined:
    Jul 8, 2014
    80
    2
    0
    Location:
    Bay Area
    Vehicle:
    2007 Prius
    Model:
    One
    I have 2007 Base Prius and driver side head lights keeps going out and every 10 secs when I turn them all light comes back. most of times short trips it will go out and need to turn the lights on/off


    Bulbs got replaced in 2011 by previous owner

    2/12/11
    • DATE2/12/11
    • TYPE---Dealer
    • REPAIR ORDER #0098982
    • VEHICLE2007 Prius
    • VINJTDKB20UX77666785
    • MILEAGE66,567

    REPLACED RIGHT FRT HID BULB.
    REPLACED RIGHT FRT HID BULB. ~|~CUSTOMER STATES RIGHT FRT HEAD LIGHT BULB OUT.CHECK/ADVISE

    PARTS
    NAME PART # QTY
    BULB, HID 9098120029 1
    CUSTOMER PAY


    It paid by previous owner.

    Any suggestions..?

    Thanks
     
  2. ericbecky

    ericbecky Hybrid Battery Hero

    Joined:
    Mar 12, 2004
    4,365
    3,209
    1
    Location:
    Madison, Wisconsin
    Vehicle:
    2005 Prius
    Model:
    Two
    It could just be the bulb.

    Else, there was a recent post by a member with the solution of soldering the connectors.

    Since it is low-cost, if you have soldering skills I would give that a try.

    From his post...
    "Long story short, I found the problem is the red-black wire pair inside the headlight that provides twelve volts to the headlight power supply.

    Over time, the crimps become high resistance and act like a thermal switch.

    You can take the plugs apart and solder the crimps and, voila, the headlights now burn ad infinitum. "​

    Otherwise, you may need to replace the HID ballast.
    Expensive, a hassle to fix, and kinda easy to accidentally break something.
    But here is a link how to tackle that repair
    Toyota Prius: How to Replace the HID Ballast/Computer/ECU - PriusDIY.com