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Old 04-07-2014, 02:56 PM
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BenzEnthusiast BenzEnthusiast is offline
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Join Date: Dec 2011
Location: Manteca, CA
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On page 27 of this PDF it states the function of the 4 pin brake light switch.

"Stop lamp switch signal:
When the brake is operated, a signal is
transmitted to the logic section. The solenoid
valves are switched into the original position
by the logic section via the respective output
stages. In other words, ASR control mode is
terminated immediately."

It does this to go back to regular ABS mode, so using this to trick the ASR into staying off should have no ill effect upon the ABS function. Further more, this way of shutting off the ASR might not trip the ASR dummy light. If you do want the light on to remind you that it's switch off, I'm sure there is a way that you could tap the switch into the actual dummy light itself.

If this works, then it will be simpler than wiring directly into the harness of the ASR computer since everything will be done right above the pedals hidden under the knee bolster.

Is anyone excited to at least try this? I will do it as soon as I get my 420SEL running with the new engine and report back with results.
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1986 300SDL TURBO
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