Control of Shift Solenoid Valves A and B

The shift solenoid valve performs simple ON-OFF operation. When set to ON, the drain circuit closes and pilot pressure is applied to the shift valve.

The TCM activates shift solenoid valves A and B according to signals from the ECM (throttle opening) and revolution sensor to select the optimum gear position on the basis of the shift schedule memorized in the TCM.

Fig 1: Shift Solenoid Valve A And B Control Diagram

Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Shift Solenoid Valves A And B And Gear Positions Relation Chart

Courtesy of NISSAN MOTOR CO., U.S.A.