2015 Mercedes C300- Auxiliary Battery Malfunction with DTC B21DC01

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Added 4 years ago by vindheim

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Just a short little video that I hope helps someone when diagnosing one of these auxiliary battery malfunction lights. I know this is a fairly common problem, but at least for me, a toyota dealer tech, getting service information was the hardest part.

I hope you all enjoy!

Link to the scan tool used in this video:
https://amzn.to/2NgalaJ

Information found from Autologic:
https://uk.autologic.com/news/support-case-study

CTI training:
https://ctionline.com/

2015 Mercedes C300- Auxiliary Battery Malfunction with DTC B21DC01

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2015 Mercedes C300- Auxiliary Battery Malfunction with DTC B21DC01

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