A Crown Stock Picker (orderpicker) has SP in its model number, eg 15SP48TT or SP3220-35. Serial # of the machine built after 1990 starts with 1A, W or H before.
I am guessing that you have a SP3000 or SP3200 series. A stored code of 208 is steering self test on startup dected no movement. Posible cause is blown steering fuse, steer motor brushes or poor contacts in K5 relay (when facing the power unit end of the machine at bottom left is the steering module and above it under a plastic box is the large K5 relay). Take the cover off of the K5 relay and have somebody turn the key switch to start. as the machine goes throung self test you should see K5 relay close and the drive tire twitch left and right.

Note: having the drive tire off the floor during a startup can cause this fault.