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

Tiny
DIVIDES
  • MEMBER
  • 2013 BMW 528
  • 4 CYL
  • TURBO
  • AUTOMATIC
  • 162,000 MILES
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
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Sunday, January 2nd, 2022 AT 3:29 PM

4 Replies

Tiny
KENNY K
  • EXPERT
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.
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Monday, January 3rd, 2022 AT 7:27 PM
Tiny
DIVIDES
  • MEMBER
Good deal. I will check the sensors first thanks. Yes, I know BMWs are a headache.
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Monday, January 3rd, 2022 AT 7:31 PM
Tiny
KENNY K
  • EXPERT
Haha. They turn a good profit which is what I suspect you are getting out of them, so I don't blame you.

Thanks.
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Monday, January 3rd, 2022 AT 7:36 PM
Tiny
DIVIDES
  • MEMBER
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.
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Monday, January 3rd, 2022 AT 7:41 PM

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