P70 No pilot error and mode page blank

[Chuck - Raymarine - Moderator]

Welcome to the Raymarine Forum rlschmidt,

The reported error condition is indicative of a communications failure between the autopilot control head and the EV-1 CCU. The command sequence MENU->SET-UP->DIAGNOSTICS->ABOUT SYSTEM may be used to verify which devices within the SeaTalkng / NMEA 2000 backbone are communicating with the autopilot control head. Should the EV-1 CCU not be listed and other devices be listed, then the communications path between the autopilot control head should be checked to ensure that no cables have been damaged / modified and that all plugs are securely seated and locked into place with the socket's locking rings. If so, the the EV-1 CCU's Status LED should be examined to ensure that it is illuminated. If not then it's SeaTalkng Spur Cable should be disconnected and tested to ensure that power is being supplied to its pins. If so, then the EV-1 CCU would appear to have suffered a failure, necessitating that it be sent to Raymarine’s Product Repair Center to be bench checked / serviced.