P0785 CHEVROLET – 3-2 Shift Solenoid Circuit Electrical

P0785 CHEVROLET Possible Symptoms

Engine Light ON (or Service Engine Soon Warning Light),Transmission may not shift to the next gear

P0785 CHEVROLET Possible Causes

Low transmission fluid level,Dirty transmission fluid,Faulty shifting solenoid valve,Shifting solenoid valve harness is open or shorted,Shifting solenoid valve circuit poor electrical connection

P0785 CHEVROLET Description

The 3-2 Shift Solenoid (SS) valve assembly is a normally-closed, 3-port, on/off device that controls the 3-2 downshift. The solenoid attaches to the control valve body within the transmission. The solenoid receives ignition voltage through circuit 239. The Powertrain Control Module (PCM) controls the solenoid by providing a ground path. During a 3-2 downshift, the 2-4 band applies as the 3-4 clutch releases. The PCM varies the timing between the 3-4 clutch release and the 2-4 band apply depending on the vehicle speed and the throttle position. When the PCM detects a continuous open, short to ground or short to power in the 3-2 SS valve assembly circuit, then DTC P0785 sets.