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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (Except For STI) >> Diagnostics for Engine Starting Failure >> Fuel Pump Circuit

Fuel Pump Circuit

CAUTION: After servicing or replacing faulty parts, perform Clear Memory Mode Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>CLEAR MEMORY MODE>OPERATION , and inspection mode Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>INSPECTION MODE>PROCEDURE ..
  1. CHECK OPERATING SOUND OF FUEL PUMP. 

Make sure that the fuel pump operates for two seconds when turning the ignition switch to ON.

NOTE: Fuel pump operation can be executed using Subaru Select Monitor. For detailed operation procedures, refer to the "Active Test". Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>ACTIVE TEST .

Does the fuel pump emit operating sound?

Yes:  Check the fuel injector circuit. Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>DIAGNOSTICS FOR ENGINE STARTING FAILURE>FUEL INJECTOR CIRCUIT .

No:  Display the DTC. Refer to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>READ DIAGNOSTIC TROUBLE CODE (DTC)>OPERATION .

ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)> Diagnostics for Engine Starting Failure