Multiple codes, ABS, traction, airbag, and brake lights are all on

2013 BMW 528
162,000 MILES • 4 CYL • TURBO • AUTOMATIC
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DIVIDES
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Any idea what any of these codes mean?
car has ABS, traction, airbag, and brake lights on.
U116D
CD9504
CD9B04
9F04
A493
CF16
C954ZD
CA304
Jan 2, 2022 at 3:29 PM
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KASEKENNY
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Anyway, I can convince you to stop working on BMW's? :) Just kidding.

The manuals are not detailed at all. They don't publish the DTC charts to AllData for the 528, so we don't have much ability to look them up.

However, I was able to find some of them in other vehicles like the 320i which has the same engine.

They appear to be wheel speed codes which would make sense with the lights that you have on.

I assume you were using an aftermarket scan tool and not the BMW tool so some of these are just erroneous codes. The CD codes are going to require your DME variant to determine for sure what the code is but I suspect they are related to the stabilization system which could be caused by a wheel speed sensor as well.

So, what I would do is start with testing the wheel speed sensors to find out if we have an issue with one of them.

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

I attached the code info on all the ones that I could find. The rest appear to be erroneous.
Jan 3, 2022 at 7:27 PM
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DIVIDES
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Good deal. I will check the sensors first thanks. Yes, i know BMWs are a headache.
Jan 3, 2022 at 7:31 PM
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KASEKENNY
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Haha. They turn a good profit which is what I suspect you are getting out of them, so I don't blame you.

Thanks.
Jan 3, 2022 at 7:36 PM
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DIVIDES
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Yes, i have been fooling with them for a long time. And thanks for your help I am able to get some ideas on what could be wrong.
Jan 3, 2022 at 7:41 PM