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Had the same problem...

Had the same annoying message which came and went intermittenly for 3 months last year. First I thought it was the side markers (door) so I checked the sockets and found the excuse to replace with clear bulbs (even though bulbs were still good). Problem went away for a couple of weeks despite all bulbs still working. When I was at Dinan in December, had them troubleshoot and they found slightly corroded sockets (front side turn signals). They replaced both sides and problem is now history. :applause:
Here's the P/N's
63 12 6 908 408 Socket
63 21 6 931 134 Bulb
Hope this helps.
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