Code 218 is a traction command voltage issue. Use the analyzer menu A4.24 to view voltage. With no command it needs to be reading 0.2v and with full throttle in needs to be 4.5v.
Easiest fix is to calibrate C2 and see if that fixes the issue. Typically that only fixes the issue if the voltages above are correct.
If they are greater than 4.8v then you'll have to start testing modules and commands as there are many possibilities as to what is wrong.
Hopefully this helps!
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