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EDUCATE THE DETAILER

Discussion in 'Toyota Hybrids and EVs' started by Dxta, Jun 27, 2019.

  1. Dxta

    Dxta Senior Member

    Joined:
    Nov 7, 2016
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    Location:
    Lagos
    Vehicle:
    2008 Prius
    Model:
    II
    IMG_20190620_130726.jpg After finished working on a Highlander hybrid, I decided to take the car to have only the interior washed. I specifically told the detailer not to bother washing the engine, since oI won't be around to supervised him.

    I got to my shop to continue other jobs, only to be called some hours later that the vehicle couldn't power ON(readied).

    I rushed down to see what was happening, only to realized that each time I try to ready the car, it doesn't come on. It only readies itself when the hybrid system service plug, and the 12V battery are disconnected and plugged back(resets the system).

    Drove the car to the shop, and scanned it, and retrieved a P0aa6 isolation fault(HV was leaking on to body ground of vehicle).

    I already knew tedious troubleshooting this code was.

    So I decided to work back on what could have caused the isolation problem.

    I touched the floor carpet of the car, it was wet. That was when I realized the cause of the problem must have being moisture accumulation at one of the HV system components.

    Removed the rugs, and saw pounded water at the contactor area(HV relay assembly).

    Got some shop cloth, and dried it up, removed the contactor assembly, and disassembled the HV relays to dry them. Sprayed some electronic spray on the relays, and the frame cables, before assembling.

    PS:
    Very important to get your vehicle detailed at a facility that understand hybrid vehicles.

    If you can't get any close by, you either do it yourself, or put the car wash guys through.

    Always be sure to check the integrity of the water drain seal on your vehicle.

    In some instances, a ruptured drain seal could cause water accumulation, thereby causing a P0aa6 problem.

    IMG_20190620_132827.jpg IMG_20190620_132551.jpg IMG_20190620_132531.jpg IMG_20190620_132243.jpg IMG_20190620_130726.jpg IMG_20190620_125726.jpg IMG_20190620_125651.jpg IMG_20190620_124958.jpg IMG_20190620_132827.jpg IMG_20190620_132551.jpg IMG_20190620_132531.jpg IMG_20190620_132243.jpg IMG_20190620_130726.jpg IMG_20190620_125726.jpg IMG_20190620_125651.jpg IMG_20190620_124958.jpg IMG_20190618_121229.jpg IMG_20190618_120922.jpg IMG_20190618_120908.jpg
     
    Mendel Leisk and CLUBGUY like this.
  2. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    What an effing mess.

    Maybe best to keep any-and-all detailers away from your cars. Tint installers can do their share of disasters too: spraying water around the dash. And the valet parkers, who can't figure how to turn the dang thing off, then screw up a jump start. Read about so many horror stories here.
     
    Dxta likes this.
  3. CamryDriver

    CamryDriver Active Member

    Joined:
    Jan 19, 2018
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    Location:
    Arkansas
    Vehicle:
    Other Hybrid
    Model:
    N/A
    Good thing you are handy or that would likely have cost a fortune to fix at a dealership!
     
    Dxta and Mendel Leisk like this.