Brake Warning, ABS, and VSC lights on after mold mitigation treatment

Discussion in 'Gen 2 Prius Technical Discussion' started by Mountain_Prius, Apr 27, 2011.

  1. Mountain_Prius

    Mountain_Prius New Member

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    2009 Prius
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    II
    Brake Warning, ABS, and VSC lights on after Mold Mitigation treatment

    I have serious allergies and suspected to have mold in the ventilation system. A local dealer told me to try using a fogger on low with Concrobium mold control (a harmless all natural mold control solution) and fog the ventilation system. I popped off the glove compartment and cabin air filter and started fogging the system on a very low fog setting to reduce the amount of moisture. I had the vent system on high and fogged for about 15min cycling through upper, lower, and defroster settings to distribute the fogging throughout the system. Once I completed I wiped up any residual liquid around the cabin air filter assembly then noticed that the ABS, and VSC lights were on. I shut the vehicle off and then IG-ON again, lights were still on. Started to drive the vehicle and then the brake warning light illuminated as well.

    After reading a fare amount of posts on this issue, I doubt it is my inverter pump that failed. My guess is that a wire harness got a little wet near the ventilation system blower housing and that is why I have these lights on. Please let me know what options I might have to get these lights to turn off. Do I perform the “clear the skid control ECU DTC†procedure by Patrick Wong under the “179,975 Miles & Warning Lights Today?†post? Or does someone else have a better solution? Thank you in advance.

    -Mountain Prius
     
    #1 Mountain_Prius, Apr 27, 2011
  2. Politburo

    Politburo Active Member

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    Did you check the 12V? It's really the first place to start when it goes christmas tree on you.
     
    #2 Politburo, Apr 27, 2011
  3. seilerts

    seilerts Battery Curmudgeon

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    +1. If you had the car in IG-ON (not Ready) during the treatment, then you ran the battery voltage below the threshold where the ABS sensors operate.

    Put that battery on a charger at 4 amps or less for several hours. It is possible that you might be able to save it. The battery charging system is not like a conventional vehicle where an alternator is dumping 10s of amps into the battery while running. The battery charges at 3.5 amps while the Prius is in Ready, and you have a 36 amp-hour battery, meaning that the car should be in Ready for 10 hours to fully recharge a battery that was nearly dead. Most folks who run their battery down don't realize this, they just know that within a week of the first full discharge it is completely dead and has to be replaced. The battery is not designed to be deep-cycled. If you can get it charged to full quickly, the damage is somewhat mitigated, but it will never have the same capacity.
     
    #3 seilerts, Apr 27, 2011
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