I am trying tap the switched +12v side of the main relay so that I can power my aftermarket ECU from it. I successfully pulled the relay and such and started probing but I ran out of time.

so yeah, I am trying to tap the switched power from the main relay, but i don't have a diagram and i don't feel like probing it and shorting something that shouldn't be.

anyone have a reference for main relay on M50 non vanos?



#4 is the main relay.