L5460 goes to max RPM & no throttle control after error 20 fuse replacement

[PPCAV8R]

I did manage to download a shop manual and now can see where everything is located. I have searched far and wide and don't see any signs of any connector damage anywhere. I did replace the transmission controller battery a bit ago and it did run long enough to at least let me raise the loader in case I have to transport it for service. Same symptoms as before when it started....goes to full throttle and there is no throttle control. Wondering if I have a bad ECU at this point.

 

[jonsstihl]

perhaps your dealer would let you crawl around under one of theirs so you could maybe spot some differences. sometimes nothing looks out of place until you realise thats not where the sensor goes. I would also check under the hood since you mention no throttle control. does the 60 series still have a throttle cable??