1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Brake/!/ABS/VSC lights came on...

Discussion in 'Gen 2 Prius Technical Discussion' started by Rapid Dog, Nov 14, 2013.

  1. Rapid Dog

    Rapid Dog Member

    Joined:
    May 9, 2011
    101
    4
    0
    Location:
    SoCal
    Vehicle:
    2010 Prius
    Model:
    II
    No reason, just came on this morning on the way to work.
    Driving at my lunch brake it 'fees' like the ABS and traction control isn't working...

    I had a wheel sensor replaced 6 months ago when all the dashboard lights came on during a rainstorm.
    Could this be another sensor...or maybe one that needs cleaning, going bad, etc.

    I'm fairly handy with a wrench, but where to start?
     
    #1 Rapid Dog, Nov 14, 2013
  2. Rapid Dog

    Rapid Dog Member

    Joined:
    May 9, 2011
    101
    4
    0
    Location:
    SoCal
    Vehicle:
    2010 Prius
    Model:
    II
    oh, '05 with 95K miles
     
    #2 Rapid Dog, Nov 14, 2013
  3. razdan

    razdan New Member

    Joined:
    Nov 4, 2013
    6
    0
    0
    Location:
    Lafayette, Louisiana
    Vehicle:
    2007 Prius
    Model:
    N/A
    Have you tried to connect an OBDII scanner to it?
     
    #3 razdan, Nov 14, 2013
  4. Rapid Dog

    Rapid Dog Member

    Joined:
    May 9, 2011
    101
    4
    0
    Location:
    SoCal
    Vehicle:
    2010 Prius
    Model:
    II
    ...sorry, don't know what that is. Is that a dealer item?
     
    #4 Rapid Dog, Nov 14, 2013
  5. jdenenberg

    jdenenberg EE Professor

    Joined:
    Nov 21, 2005
    3,872
    1,871
    1
    Location:
    Trumbull, CT
    Vehicle:
    2020 Prius
    Model:
    LE AWD-e
    Every car made after the 1996 model year has a diagnostic socket under the dash called the On Board Diagnostic (version 2) or OBD2. Read up on the available "Prius Aware" OBD2 scanners on this discussion group. That is where you start as they can read out the stored codes that are triggering the alarms.

    JeffD
     
    #5 jdenenberg, Nov 14, 2013
  6. nh7o

    nh7o Off grid since 1980

    Joined:
    Dec 10, 2011
    1,686
    340
    0
    Location:
    Hawaii
    Vehicle:
    2009 Prius
    Model:
    II
    Look into the "mini VCI" on eBay. That is the best way to scan the Prius. Until you have something like it, you can get "blink codes" from the ABS system.

    You need to short pins 4 and 13 (if I recall correctly) of the OBDII connector under the dash together with some sort of stiff wire. Then make the car ready and observe the pattern of flashing. Count the blinks in pairs for each light to get a two digit number, such as "31" for three blinks, pause, one blink, long pause, and so on. Search for blink codes here for more info. The search function is not working for me just now.

    Report what you find here.
     
    #6 nh7o, Nov 14, 2013
    dougz4m likes this.
(You must log in or sign up to post here.)