60's relays are the inspection relay.
I cannot found any print that have 69x or 69x1
westinghouse using 69 relay for parking
I agree with E-man and Scott, go back to the basic.
found out why your car call not holding.
Did you try to block in the 69x and 69xi relays, does it hold the call?
Since it is a 3 cars group, you can watch the other car operations and get some idea when and how the 69x and 69x1 relays operate.
It happen so many times, when you looking @ one area. but the problem is on the other place.
good luck!
