machine says you have to change ABS device

2015 HYUNDAI SONATA

50,000 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC

ABDULLAH AL ALAWI

MEMBER
1 POST

Hi,
I got check brake message. A machine says you have to change ABS device. When he check by computer he find error messages c1233.

May 10, 2019 at 8:54 PM

KASEKENNY

✓Experienced Mechanic
18,907 POSTS

Hi Abdullah,

If they performed diagnosis to ensure the sensor and wiring are okay, there is a chance it could be the ABS module itself. However, the wheel speed sensor and wiring must be checked before you do the ABS or you will not fix it.

Here is a guide on how to test the wheel speed sensor. This code is for the left front speed sensor:

https://www.2carpros.com/articles/abs-wheel-speed-sensor-test

Let me know if this doesn't make sense and I can clarify any questions you have. Thanks.

https://www.2carpros.com/articles/how-to-replace-a-abs-controller

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