TM 10-3930-669-20 21.  TRANSMISSION DOES NOT OPERATE IN FORWARD (CONT). KNOWN INFO Transmission operates in reverse. Forward control solenoid OK. POSSIBLE PROBLEMS Wire 35 faulty. Forward control switch faulty. Wire 39 faulty. KNOWN INFO Transmission operates in reverse. Forward control solenoid OK. Wire 35 OK. POSSIBLE PROBLEMS Forward control switch faulty. Wire 39 faulty. TEST OPTIONS Voltage test. STE/ICE-R #89. REASON FOR QUESTION If 22 to 24 vdc are not present, wire 35 is faulty. TEST OPTIONS Continuity test. STE/ICE-R #91. REASON FOR QUESTION If continuity is not present, forward control switch is faulty. If  continuity  is  present  wire  39 is faulty. ¬ ¬ 2-252