ECU Error Code P0606

[MBoyle]

I'm new, tried searching for code P0606 here but I must've done something wrong cause I got zero returns. Anyway, I cleaned the battery connections and put a charger on it on set to crank power. Code remains. I would appreciate any help.
Tractor is a 2015 L3301 HST.

 

[PoTreeBoy]

When I search for 'P0606' using everywhere, I get lots of hits.

 

[JasonW]

That code shows a communication error in the ECU. Has the battery recently been replaced?

 

[ruger1980]

Engine error P0606

My L4060 had a flashing warning reported P0606. Flashing triangle goes out after restart, but error code is still there. Chappell Tractor Maintenance guy says it indicates water in engine. I cleaned out the sediment bowl and oil shows no milky color

www.orangetractortalks.com

 

[mdhughes]

Don't know if this is going to help, but from the WSM for the L3301, 3901 and 4701:

P0605 and P0606 = ECU Flash ROM and CPU abnormality