Possible causes

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

Tech notes

There is a service bulletin for a various Nissan Models with the RE5R05A transmission.
Factory Nissan Service Bulletin OBDII Code P1774

Symptoms

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

P1774 NISSAN Description

Low coast brake solenoid valve is turned