Cool thanks.
I was going to just replace that but a while back I turned an old Clark into a new one. I kept throwing new parts at it to fix a problem that wouldn't go away. It got very expensive.
2,1 is battery under voltage
1,2 is throttle pot.
I would start with the throttle pot, it's most likely your problem they wear out frequently. The wiring can also cause this, the harness sometimes gets pinched around the drive motor or stretched where the handle pivots. Chassis shorts can cause this and other problems.
It's a 2004 111TM-F60L. The light blinks a code 21.
There is a red light on the console where the hour meter and keyswitch is. This light blinks flash codes. The next time it's not working hold the throttle on and count the blinks.
Depending on year of manufacture it may not be there.
Model and serial number would be handy but I'm going to assume it's a newer unit.