[TG] [DG11] ACU-400 not detected ('No Pilot' error)

[SaltySeaPup]

Good day.

I have recently purchased a sailboat which has a Es75 MFD, P70s Control head, EV-1 course computer and ACU-400. All these devices work perfectly except for the ACU-400 which doesnt show up on system devices - diagnostic menu. I have connected the P70s directly to the ACU-400 via backbone (powered by ACU) and spurs and still no detection. ACU shows an orange lamp, all fuses checked. Have also checked the backbone with a multimeter and there is no breaks or shorts. I neglected to check the autopilot correctly before purchasing, it has had a motor and cable swap recently.

Software versions;
P70s: 3.07
Es75: 19.03-00036
EV-1: 2.18

Appreciate any help as I am currently sailing up the Norwegian coast and could use some helm rest!