Possible causes

– Faulty Front Brake Solenoid Valve
– Front Brake Solenoid Valve harness is open or shorted
– Front Brake Solenoid Valve circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Transmission shifting problem

P1757 NISSAN Description

Front brake 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.