DTC P0750 Shift Solenoid Valve A: Description

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Shift solenoid valves are installed directly in control valve body. The shift solenoid valves operates of ON and OFF by the control signal from TCM. Combinations of 5 shift solenoid valves, A, B, C, D and E, shifts gear positions.
The shift solenoid valve A is a normally open, ON-OFF type solenoid.

Fig 1: Proper Shift Solenoid Valve Operation Table

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