Will not level after Rambo 1.4 upgrade on Taz6

I recently had a blown Z axis on my Taz6. Based on this I replaced the board with a rambo1.4 kit. After replacing the board everything appeared to function properly. Though when I go to print the unit does not register contact with the washers. I have checked my wiring a couple times, but with the schematic on the board swap page I can’t identify which wire/connector is responsible for bed levelling.

Does anyone have any suggestions on how to address this?

Be sure the mx1 connection is in the correct location and in the correct position.

Thank you for that, I was one row too high on that connector