https://sites.google.com/site/tyndago/gt-rattesainfrormation
Attessa codes in there
i had this EXACT code come on intermittently for a while staying on for a few days till i reset the 4WD computer
I'll list what i did
In my case:
1st thing i did was readjust the TPS, also running Power fc.was fine for a week then light came on again
2nd Replaced the TPS, again lasted a week or two the light came back on
3rd Replaced the 4WD computer with a known working one, Lasted a month then came on at the track
4th Researched and found a guy in the UK who had same issue and found was a dirty ground on the alternator. So i cleaned the ground on the alternator and was good for a week or two and light came back, this is the weird part when the 4wd light came on this time the HORN stopped working!!!
5th and final!!! Found a dodgy ground on the horn, Replaced the ground and ever since, touch wood, 4wd been working perfectly for well over 2months now
i hope some of this helps!!!
Any questions feel free to PM me