DTC P0752: Shift Solenoid Valve A Stuck ON: General Description

Shift solenoid valve A is installed in the transmission housing. It is controlled by the ON/OFF signal from the powertrain control module (PCM) to apply modulated pressure to shift valve A. The signal from the PCM is output to apply clutch pressure control pressure to the proper gear change clutch according to the gear change schedule. When the signal to shift solenoid valve A from the PCM is OFF, and modulated pressure is discharged, shift valve A is inactive. When the signal to shift solenoid valve A from the PCM is ON, and modulated pressure is applied to shift valve A, it operates against the shift valve A spring. The PCM monitors the transmission fluid switch at the speed change stage determined by the shift schedule. When the wrong transmission fluid switch is turned on for a given speed change mode, a shift solenoid valve turn-on malfunction is detected and a DTC is stored.