A/T CONTROL DIAGRAM — Hydraulic Control Circuits
AT-4wiring diagramAutomatic transmission hydraulic control circuit diagram. Applicable to A/T equipped 1989 Nissan 200SX (S13). Diagram reference code SAT123B.
Hydraulic Control Circuits
Components (47)
Accumulator AAccumulator BAccumulator CAccumulator DOverrun clutch timing valveOverrun control valve1st reducing valveShuttle shift valve SOverrun clutch solenoidShift solenoid AShift solenoid BManual valveLine pressure solenoidPilot valvePressure regulator plugPressure regulator valveModifier accumulator valvePressure modifier valveServo change valveLock-up control valveLock-up control plugTorque converter valveTorque converter relief valveFeedback accumulator valveLock-up accumulator valveShift valve AShift valve B3-2 shift valveShift valve D (Shift valve B unit)4-2 relay valve1-2 sequence valve2nd sequence valveOil pumpFilterBand servoReverse clutchHigh clutchForward clutchOverrun clutchLow & reverse brakeForward one-way clutchLow one-way clutchFront lubricationRear lubricationD, Z and 1 line pressure check portB line pressure check portSelector positions: P H N D 2 1