When installing the DFC90 into an approved aircraft, if you see the Entegra PFD Autopilot Message bar dashed out (see photo), you need to check the configuration of the AutoPilot in the PFD Maintenance Mode pages. Ensure the PFD has MOD55 (mandatory requirement for the DFC90), otherwise the DFC90 cannot communicate …
Thank you for your reply and additional information. The most common cause of erratic DFC operation is the Start Voltages of the Roll and Pitch Trim Motors. A good Motor will begin to respond at around 2 Volts. Any voltage beyond 2.5 volts will cause erratic operation of the autopilot. The autopilot is also …
IFD Analog Autopilot Interfaces IFD GPSS Interfaces
This is informational use only, all inquiries regarding the Auto Pilot issue below must be referred to Cirrus. Issue: shop is able to save Auto Pilot as "Not Installed". Workaround: None, this is required by Cirrus NOTES: Cirrus requires the PFD validate the configuration options, and only allow the options tha…