I don¡¯t have the circuitry in front of me. If your voltages are all positive, and if the pass transistor is PNP, then it should be conducting and pulling the collector voltage down to the 158V you indicated, so my impression is that the pass transistor is open E-C., it could also be something in the E path that is open, not allowing it to sink current.
Anything on the B that is + 0.6 V above E should cause E-C to conduct.
Don Bitters
