Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Fuel Pump Circuit
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode < Ref. to
OPERATION , Clear Memory Mode. >, and Inspection Mode < Ref. to
PROCEDURE , Inspection Mode. >.
DIAGNOSTIC PROCEDURE
| Step | Check | Yes | No |
|---|---|---|---|
| 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. Refer to "Active Test" for the procedures. < Ref. to
ACTIVE TEST . >
|
Does the fuel pump emit operating sound? | Check the fuel injector circuit. < Ref. to FUEL INJECTOR CIRCUIT , Diagnostics for Engine Starting Failure. > | Display the DTC. < Ref. to OPERATION , Read Diagnostic Trouble Code (DTC). > |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.