September 5, 2013, 9:01 am
Following on from what Tony said:
D147 - Missing / Invalid Vehicle Security Data could be that the PATS system has lost the pairing to the key (probably needs an auto locksmith to repair it with Ford IDS)
I just found this on a Mustang forum:
D900 - Some sort of communication blip has occurred, this doesn't mean that there is a fault necessarily, but it shows that the car has lost communication with itself (when all the lights went out on the dash for example).
E197 and E200 as Tony said, refer to an invalid data for vehicle speed and odometer (this could indicate either a faulty instrument cluster, or could be related to the D900 error you saw above)
A103 is the Antenna Not Connected Error.
These could be indicative of a wiring issue on the car. But as Tony said, you cant diagnose a car solely on the readings of the error codes.
What happens when you turn the key to position II (not started the engine but all electrics are on?)
What do you see or hear? do you see dashboard lights flicker like crazy? hear a clicking in the passenger side? see headlights flicker? I suspect you may do and so would suggest you get the battery looked at.