Quote:
Originally Posted by ChipJ
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.
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Code "6" is usually associated w/ "going-bad-ETA" however it could be other parts as well such has the Brake Switch (B/S) and/or the neutral safety switch (NSW).
Quote:
Originally Posted by ChipJ
Ed Owen at EAS thinks it possible that bad ETA wiring can also cause a problem (two months later???) with the ECU.
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Not sure what that means other than the 'crumbling' wires in the ETA could have caused some damage to the ECU. If that were true, replacing the ETA would NOT have fixed the problem, even temporarily. So that's why I don't think it's the ECU.
Quote:
Originally Posted by ChipJ
The bad brake light switch could just be a coincidence since that is a common problem.
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It more than a coincidence since the B/S ***AND*** the NSW are part of the ETA 'circuit' and if you have read the threads here, you've seen that many times replaceing one or both, has fixed the "ETA-problem".
Quote:
Originally Posted by ChipJ
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.
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It's your money but you'd be VERY REMISS for not investigating the NSW
first before replacing the ECU!
You should dump the codes in the other modules as I show in MENU#24. You need to see what's happening there before committing to a new ECU.