P1764 Subaru Direct Clutch Solenoid Valve Function

Possible causes

– Faulty Direct Clutch Solenoid Valve
– Direct Clutch Solenoid Valve harness is open or shorted
– Direct Clutch Solenoid Valve circuit poor electrical connection

Tech description

There is a service bulletin for a various Models with the RE5R05A transmission.
Factory Service Bulletin OBDII Code P1764 Subaru

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P1764 Subaru Description

Direct clutch solenoid valve is controlled by the Transmission Control Module (TCM) in response to signals sent from the PNP switch, vehicle speed sensor and accelerator pedal position sensor (throttle position sensor). Gears will then be shifted to the optimum position.