Went to the guys who done alternator and this was their diagnostic if you can read any of it lol . There machine was 12k so they reckon it will pick up all codes ..

Hello . Recently bought a 2002 4.4 v8. New alternator and battery fitted Sometimes when I turn on ignition it brings up transfail safe. I then take the key out and put it back on and it's fine ? Drives great really smooth and everything works fine all high low ect sports mode .... Sometimes...

Hello New to this . How do I post a problem ? Without just commenting on something lol