You should read Technic's posts on the E90 AV section showing how to use Autologic and a Metra harness to get analog outs from your Logic-7 coded HU.
If the Autologic wasn't SRS-loaded, it wouldn't have been able to do that.
I don't know what tool my local shop used. They are Motorsports International in Beaverton OR if you want to call them and nicely ask them which gear setup they used to reset a 2007 E91 SRS light.
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