Sync 4 Retrofit DTC Lost Communication to APIM

When retrofitting a Sync 4 APIM into a Ford Vehicle that is not in the year range of Sync 4 Factory to the vehicle, then a LOST COMMUNICATION TO APIM DTC will be present. That DTC is stored and may not clear, but will cause no issues with the vehicle. It's because the Sync 4 APIM has additional data going to it in the factory installed vehicles, the network is slightly different. This DTC is to be ignored and effectively has no negative effects.