Mitsubishi forklift FB18ACN error codes 12A216 & 16A216 anybody came across this before? Looks like a fault with wiring on L/H & R/H handbrake, any common plugs to look for? Anything someone has fixed? Truck works fine until put under load - using hydraulics and driving at the same time, error codes pop up and cuts out the truck, turn key off, back on again, errors have gone until driving and hydraulics used at the same time again...