# 2012 Subaru Outback - CEL, Anti-Skid, Brake Lights on

**URL:** <https://community.cartalk.com/t/2012-subaru-outback-cel-anti-skid-brake-lights-on/145049>\
**Category:** Maintenance/Repairs\
**Created:** [July 23, 2019, 2:34am UTC](https://community.cartalk.com/t/2012-subaru-outback-cel-anti-skid-brake-lights-on/145049 "2019-07-23T02:34:23Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![RobertEiting](https://avatars.discourse-cdn.com/v4/letter/r/35a633/32.png) [@RobertEiting](https://community.cartalk.com/u/RobertEiting)\
**Post date:** [July 23, 2019, 2:34am UTC](https://community.cartalk.com/t/2012-subaru-outback-cel-anti-skid-brake-lights-on/145049/1 "2019-07-23T02:34:24Z")

</div>

We have a 2012 Subaru Outback and the check engine light is on, anti skid light flashes, and the brake light is flashing?? Took it to a mechanic and they think it maybe a oxygen sensor $450.00 approx. The code read Bank 1 is running lean? They reset it a week ago and now the lights are doing the same thing? Any thoughts on what it could be?  
Thanks

---

<div class="post-metadata">

**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [July 23, 2019, 4:26am UTC](https://community.cartalk.com/t/2012-subaru-outback-cel-anti-skid-brake-lights-on/145049/2 "2019-07-23T04:26:57Z")

</div>

> [@RobertEiting](#):
>
> They reset it a week ago and now the lights are doing the same thing?

That proves that there is a problem, Erasing the fault code does not qualify as a repair.

Checking the fuel trim values might indicate that the Mass Air Flow sensor is dirty or failing.