T300 only turn left going forward

[T300Bob]

While using my t300 (2008 SJC 2400hrs)) today pushing some brush the machine quit turning right and seems to be in low speed. The two speed button does nothing but machine still moves backwards and steers but feel like slow speed. It has an active warning "right forward drive solenoid". Any help would be great.

 

[mmsllc]

Sounds like the onboard diagnostic / computer is telling you that some thing has gone bad with the right solenoid circuit. It could easily be a bad solenoid or the wiring going to it. Has the issue bee resolved at this point?