DCM unit on Mercedes S500

Asked by Feb 05, 2018 at 06:08 PM about the 2003 Mercedes-Benz S-Class

Question type: Maintenance & Repair

I replaced driver side DCM unit but problem of
seats, windows, turn signal, AC display only work
with Car in on position?? Once Car is running none
of before mentioned problems work again...only in
the “on” position are the problems eliminated??

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