9000 L4-1985cc 2.0L DOHC Turbo EFI (1987)
The 4th-3rd downshift valve serves as a "clutch pressure retaining valve" for brake C' until clutch A is filled.
Brake C' is also vented via this valve.
Time Control Valve
Valves are illustrated in their positions when the selector lever is set to neutral.
On overlap control, the time control valve regulates the "dwell time" between the clutch being released and traction.
The "dwell time" corresponds to the operating time of the time control valve. The time control valve disengages the 4th-3rd traction valve and the
4th-3rd downshift valve.
Throttle Control Valve