Subaru IMPREZA 2004 Service Manual page 487

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
Step
8 CHECK FUEL LEVEL SENSOR.
1)Remove the fuel pump assembly. <Ref. to
FU(H4SO)-57, Fuel Pump.>
2)Measure the resistance between fuel level
sensor and terminals with its float set to the full
position.
Terminals
No. 3 — No. 5:
Check
Is the resistance 0.5 — 2.5 Ω? Repair poor con-
EN(H4SO)(diag)-178
Yes
Replace the fuel
tact in harness level sensor.
between ECM and
combination meter
connector.
No