Broken ap disconnect switch message

[DJA767]

I'm installing the autopilot in a Europa long wing aircraft. I'm getting flashing, intermittent broken disconnect switch message. I can't find any obvious problems with the wiring to the switch. The function is working perfectly. The monitoring is the problem. Any ideas if there is an answer to this? I've turned off the monitoring function for now. Measuring everything seems normal. 5K ohms, 2.7 and 3.0 volts. I'm guessing there is a bad connection of the resistor between the switch contacts, bug I can't find it. I did not see this problem until I installed the pitch servo. Thanks. Dave

 

[Dynon]

Are both servos' disconnect wires connected to the switch (and resistor), or just one?

 

[DJA767]

Both servo yellow wires to the high side of the switch. The low side to ground. 5,000 ohm resistor across the switch contacts.

 

[Dynon]

That should do it. Have you tried replacing the resistor. Maybe it's the actual resistor that's the problem, given you've checked the connection.