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abs, vsc and brake light

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by AngelK, Aug 22, 2019.

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  1. AngelK

    AngelK Junior Member

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    All 3 came at the same time. I had just started the car and driven a little down the street. Pulled over, scanned it with an obd and no codes, restarted the car and lights went away. Havent come back since, been about 10 miles. When i recently had the car inspected mechanic told me to have rear brakes cleaned and adjusted which i planned on doing soon. Would that have something to do with it and what should be my next plan of action?
     
    #1 AngelK, Aug 22, 2019
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  2. ChapmanF

    ChapmanF Senior Member

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    What OBD scanner did you use?

    I might toss a short piece of wire in the car just to have on hand in case the lights come back, to at least jumper the Tc annd CG terminals and count the light blinks, if the OBD scanner isn't showing the codes.
     
    #2 ChapmanF, Aug 23, 2019
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  3. Skibob

    Skibob Senior Member

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    I think you already know the answer to this. ;)
     
    #3 Skibob, Aug 23, 2019
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  4. jonwilhelmjr

    jonwilhelmjr Junior Member

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    I have found my passenger rear wheel speed sensor terminals are corroded. Now I have not verified this as the fix because my wheel bearings are shot. I'll update as I know more. I have the same lights that go on and off.

    SM-N950U ?
     
    #4 jonwilhelmjr, Aug 24, 2019
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  5. caravan2429

    caravan2429 Junior Member

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    Bad ABS sensor wires. Check connection and wire itself.
     
    #5 caravan2429, Aug 25, 2019
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  6. AngelK

    AngelK Junior Member

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    Codes that came up are u0123, u0124, and u0126. Is it ok to drive with these for awhile?
     
    #6 AngelK, Aug 26, 2019
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  7. AngelK

    AngelK Junior Member

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    Codes i got are u0123, u0124, and u0126
     
    #7 AngelK, Aug 27, 2019
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  8. Patrick Wong

    Patrick Wong DIY Enthusiast

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    Those three codes indicate there is a problem with the steering sensor and yaw rate sensor. Maybe there is a problem with the wiring to those sensors.

    Do not expect a regular mechanic (who does not specialize in Toyota hybrids) to be able to resolve the problem.

    Is it OK to drive with those: well, your braking system is impaired. If you don't drive in a manner that requires emergency braking you might be OK. Or you might not be OK.
     
    #8 Patrick Wong, Aug 27, 2019
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