ABS Light Suddenly On
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This is a discussion on ABS Light Suddenly On within the Suspension & Wheels forums, part of the Tech & Modifying & General Repairs category; so today during the snow storm i was goin up my steep hill to my parking lot, and i was ...

  1. #1
    Registered User wrx0131's Avatar
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    ABS Light Suddenly On

    so today during the snow storm i was goin up my steep hill to my parking lot, and i was spinning the wheels a lot to get up. About half way up my ABS light suddenly turned on while my tires were spinning. What do you guys think is the cause of this and will this affect my braking?
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  3. #2
    The Default One SeattleJeremy's Avatar
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    You should be fine

    Reset the ecu (unplug the negative cable, and step on the brakes). If it comes back after that... then worry.

  4. #3
    Registered User wrx0131's Avatar
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    Quote Originally Posted by jeremy96gase View Post
    You should be fine

    Reset the ecu (unplug the negative cable, and step on the brakes). If it comes back after that... then worry.
    can i reset with the OBDII scanner?
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    Good news, everyone! xxxxxxxAnub1s's Avatar
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    Happens at least once a winter for me. Goes away after a couple of cycles of driving, nothing really to worry about. If it stays on for any more than a couple of days, you're going to need to get it checked out.
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  6. #5
    The Default One SeattleJeremy's Avatar
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    Quote Originally Posted by wrx0131 View Post
    can i reset with the OBDII scanner?
    Yes, that'd be the way I'd do it, but not everyone has immediate access to one.

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    Moderator T0rque's Avatar
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    Some CEL scanners dont access Brake codes. Sometimes you need an ECU splitter to make the light blink the codes to you. Not sure how subaru does it but thats how Honda is. Pull the cable for a few seconds and toss it back on. Turn the car on turn off all electronics (stereo lights anything) let it idle for 10 minutes without touching the gas pedal. After that you should be good to go.


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    ABS + T/C + Hill Descent

    I have a 2010 WRX. Yesterday right after driving ~100 miles on the highway in fairly cold weather (0 deg F), I stopped at a light. After coming to a stop, I noticed that the ABS + T/C + Hill Descent lights came on (they were not on before I started stopping). We stopped for food soon after, and when I started the car again the lights were off.

    The previous day I just had winter tires installed (wheels not changed, just different tires put on). I was wondering if the cold or something with the winter tire installation could cause this to happen. Has anyone heard of or seen anything like this? Thanks.

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    Registered User Acrdys's Avatar
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    Quote Originally Posted by mr_orange View Post
    I have a 2010 WRX. Yesterday right after driving ~100 miles on the highway in fairly cold weather (0 deg F), I stopped at a light. After coming to a stop, I noticed that the ABS + T/C + Hill Descent lights came on (they were not on before I started stopping). We stopped for food soon after, and when I started the car again the lights were off.

    The previous day I just had winter tires installed (wheels not changed, just different tires put on). I was wondering if the cold or something with the winter tire installation could cause this to happen. Has anyone heard of or seen anything like this? Thanks.
    No. At least from what I've read. Previous posts leave me to believe that the lights turning on is due to the tires losing traction and such.

    Funny story... I went snowboarding yesterday with my friends @ sierra summit. Found an empty snowed in parking lot... I mean a privately owned parking lot that my friend owned and did some donuts in 4th gear ; went sideways ; then after quickly left for home.

    ABS and brake lights were on. All this was done on my stock RE-92's with 27000 miles on them. It was fun.
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    ABS Light

    Did your lights only come on briefly when the ABS was activated, or did they stay on? I've seen mine come on when the ABS is working, but this time they stayed on.

  11. #10
    Registered User Acrdys's Avatar
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    My abs and brake lights turned on but I only noticed it on the way down the mountain.

    But all the previous posts have one thing similar to each other.

    1. They were driving in snow.

    btw... go watch the blind side. It's a nice movie.
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