[CA] [CA11] ACU-200 Drive not detected

[Offshore]

been doing a lot of work on the steering system. recently hooked everything up and I'm getting a "drive not detected" alarm when i try to engage the autopilot.

system check sees all of the other components of the system P70R, EV-1 but does not see the acu-200 actuator unit. lights are on. checked fuses.

unplugged it and replugged it from the unit and from the backbone, no change.

thinking the drop cable may be bad. do you know the part number for that?

or if there is a way to test the cable or the unit?

Thanks