i've never measured the DCSW signal at pin 116 of the EV-ECU, or at pin 4 of the OBC E03 connector. Has anyone done this?
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Looking in the FSM, pin 116 is the "DCSW" and listed as the 12V DCDC converter shutdown signal, and the measurement should show battery voltage.
http://mmc-manuals.ru/manuals/i-miev/online/Service_Manual/2012/54/html/M154920100002700ENG.HTM
Pin 127 is the "SDW" and listed as 12V DCDC converter drive signal
Electric motor switch: ON (before electric motor unit start), should read 1 V or less
Electric motor switch: ON → START position (after electric motor unit start), should read Battery voltage.
From my look at the circuit boards and wire colors, i think DCSW is an output of the EV-ECU and SDW is an output of the DCDC.
i wonder if there is a typo or error in the FSM, where DCSW should be the Enable or Drive signal, not the shutdown; and SDW is the Shut Down, not the drive?
Overview of DCDC Converter in the Technical Information Manual,
http://mmc-manuals.ru/manuals/i-miev/online/Service_Manual/2012/54/html/M254950030002900ENG.HTM
