Seeing that the mere thought of the software being given the opportunity to determine what is and what is not faulty with AD and IR components essential for the safe conduct of any flight, is a step too far, I'm sure you wont mind being reminded that the "B" outfit configured their 777 / 787's to sort the mess out and present the correct data on each PFD.
So there you are; you are shown the correct data, and if all has "gone to hell in a handcart" the Fault Arbitration system will let you know - I suspect in no uncertain terms.
