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Originally Posted by Alans V12
Mercedes have had the car on their diagnostics and it says there is no reception from EFP N4/1 what ever that is. Alan
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. . Menus 2, 9 and 24 for more info on the 'imfamous' ASR problem.
N4/1 is the EA/CC/ISC module in my car; probably a little different in yours. This is part of the ASR system that
MUST work. The N4/1 communicates via CAN bus, so a "wiring harness" could be the problem.