Circuit Description

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The shift solenoid (SS) 1 is mounted to the transmission case and is used to supply or cut off the modulated pressure to the shift valve A, according to the powertrain control module (PCM) command. The signal from the PCM is output, so that a clutch control pressure is supplied to the clutch of an appropriate gear position as determined by the shift schedule. When the PCM commands the SS 1 ON, the modulated pressure is not supplied to shift valve A, and shift valve A is pushed by the reactive force of spring A. When the PCM command is OFF, the modulated pressure is supplied to the valve. The PCM monitors mainshaft to output shaft speed ratio in the gear positions determined by the shift schedule.

When the PCM detects an incorrect ratio for the commanded gear, DTC P0751 sets. DTC P0751 is a type B DTC.

Refer to Shift Solenoid Valve State and Gear Ratio .