Quote:
Originally Posted by 124126140
How is your brake light switch, has it been replaced? I had the same symptoms on my 99 S500, replacing the brake switch cleared the problem.
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Great suggestion, I had read that the brake light switch can cause many a ASR issue just surprised at the high failure rate of these switches. It's cheap enough and available locally, that I'll swap it out and see if that is the issue.
I also recall an odd occurrence a day or so before this happening, my lamp failure bulb lit up oddly although all of my lamps worked as far as I could tell, abut 5 min later the warning indicator turned off and has not been on since. I have read of tail lamp connection issues can also throw the ASR in limp mode as well, so another DYI to look into.
Still surprised that such a problem would make the Diagnostic Module pins 3 & 14 go blank
