Elevator initially had interlock faults. Swapped both interlocks, then went to overload with block error FATL ERR 0094. Replaced criphna board and replaced open and closed sensors for door operator. Now SKD5 LED never goes high, and the unit immediately faults out with FATL 0094.
If you have SKD4 and not SKD5, issue is the gate switch or CDOOR contacts. Do you have SKD4, and CDOOR and CDOOR20? Check X13 pin 5 to verify no voltage, to eliminate small possibility of bad dummy light.