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Hello I have a polo from 2013. I just inherited it from my grandfather, whom has not driven it that much. Most of the time it has been in garage. Only done 28.000 km

After I got it a lamp started lighting up. The airbag-seatbelt lamp, is yellow.

I therefore have investigated under the seats where I found an umbrella. Hoping that it had interfered with the signals, I tried ensuring that all the plugs where firmly connected. I believe one may not have been, but the light is still on.

I acquired an ODB reader for the ODB plug, but it only reads error messages in respect to the engine, i.e. not helpful.

I then acquired the Haynes manual, which states in the body section that there is plug behind the air control for the driverside. I have tried following the manual to remove the cover to see the "wished-to-be" ODB-plug. But I am affraid of using excessive force.

My question is therefore is there a way to read error messages using ODB for the body-system of the car, not the engine ECU? Am I on the right track with the above mentioned plug hidden behind a airflow control?

Do I have to throw in the towel and pay my "fine" to the mechanic?

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Finding someone who has VCDS would be your easiest method of finding out what is happening. That will be able to read the body computer. Look around locally for a VW car club.

With VCDS you will read through the normal ODBII cable, and on a computer you will have the ability to read codes, status, etc. on the body computer.

A well equipped shop may have that software and cable, or another proprietary scan package. Of course your "fine" will apply.

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  • Hmm, sad. There are no VCDS do-it-yourself system you can recommend. Have searched a little after you gave the term. But seems expensive and others have very mixed review.
    – JTIM
    Apr 22, 2017 at 6:08
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    Look at the options Ross-Tech offers. I have one of theirs.
    – mongo
    Apr 22, 2017 at 13:58
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    Also some of the fancier code readers read body, ABS and transmission codes. However, for VW, I have found VCDS the best buy, and the forums, such as Fred's TDI tend to cover using it there. The Ross-Tech site also has diagnostic info which might help. I am sorry, but my bentley book doesn't cover the Polo, but I could probably send you what is in it and wiring diagrams, etc. might be similar.
    – mongo
    Apr 22, 2017 at 16:30
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    Just saw a youtube video on the ODBeleven product. Lower cost than VCDS. I cannot say if it will do what you need, but they advertise that it will talk to the major controllers. Perhaps you might check that product out.
    – mongo
    Apr 23, 2017 at 13:16
  • I have looked at it now and seems very interesting, I have also found a DIY place where they should have similar systems that I will investigate, to see what possibilities exist. Thank you for all your help and insight
    – JTIM
    Apr 24, 2017 at 7:12

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