I only have a single Code 6 on the OBD. The first time I (when the ETA was diagnosed as faulty) I had multiple 6 and 26 codes. Ed Owen at EAS thinks it possible that bad ETA wiring can also cause a problem (two months later???) with the ECU. The bad brake light switch could just be a coincidence since that is a common problem. He has found a used ECU that matches mine and the total installed cost is reasonable (much less than $1000+ for a new one from Mercedes or remanufactured from Beckman) and since it carries a one year warranty I will do that.

I just think it very odd that THREE things electrical could go south within two months but I am no expert.

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Chip Johnson