Hi,
Looking at a schematic, when you say yellow wire, are you referring to the orange one in the schematic? That should have power at all times. The blue wire runs between the two switches so both locks get power. Since you seem to have power, the problem seems to be one of two things. Either that actuators on the doors are bad, or there is no ground.
Have you confirmed there is ground via the black wire from the main switch? See the pic below.
Also, the pic you mentioned didn't come through. Can you reload it?
Thanks,
Joe
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Thursday, March 19th, 2020 AT 6:21 PM