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Subaru Legacy Service Manual: Fuel pump circuit

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.

STEPCHECKYESNO

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 the Subaru Select Monitor.

For detailed operation procedures, refer to the “Active Test”. Active Test

Does the fuel pump emit operating sound-

Check the fuel injector circuit. Diagnostics for Engine Starting Failure > FUEL INJECTOR CIRCUIT

Display the DTC. Read Diagnostic Trouble Code (DTC) > OPERATION

Check power supply and ground line of engine control module (ecm)
CAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.WIRING DIAGRAM:• Engine Electrical S ...

Ignition control system
CAUTION:After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.WIRING DIAGRAM:• Engine Electrical S ...

Other materials:

Inspection
1. Measure the resistance between connector terminals.Preparation tool:Circuit testerTerminal No.Inspection conditionsStandard6 — 8Switch OFF1 M- or moreSwitch ONLess than 1 -2. Apply battery voltage between the connector terminals to check lighting condition of illumination inside the switch.Term ...

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