2008 global tardiff erm hydraulic controller 3 stop model 2002. Anyone work on these controllers much problem we are having is the position indicator readout in the car failed. Replaced the position indicator board in COP which caused the car station board in the COP to fail. Then Replaced car station board with new position indicator board as well and returned unit to service but the position indicator now instead of reading gibberish reads p1 p2 p3 in reverse order for floors. The computer chip on the car station board was corrupted and so was the old computer chip on the position indicator board. I believe I just need to be able to program replacement chip. Controller is obsolete. Thanks.