Subaru LEGACY 2004 Service Manual page 422

INSTRUMENTATION/DRIVER INFO
Step
3 CHECK FUEL SUB LEVEL SENSOR.
1) Remove the fuel sub level sensor. <Ref. to
FU(H4SO 2.0)-50, REMOVAL, Fuel Sub Level
Sensor.> <Ref. to FU(H4SO 2.5)-52,
REMOVAL, Fuel Sub Level Sensor.> <Ref. to
FU(H4DOTC)-52, REMOVAL, Fuel Sub Level
Sensor.> <Ref. to FU(H6DO)-51, REMOVAL,
Fuel Sub Level Sensor.>
2) Measure the resistance between fuel sub
level sensor terminals when the float is in
FULL or EMPTY position.
Terminals
No. 1 — No. 2:
4 CHECK HARNESS BETWEEN FUEL SUB-
LEVEL SENSOR AND BODY INTEGRATED
UNIT.
1) Disconnect the connector from body inte-
grated unit.
2) Measure the resistance between fuel sub
level sensor harness connector terminal and
body integrated unit harness connector termi-
nal.
Connector & terminal
(R59) No. 1 — (B281) No. 19:
5 CHECK HARNESS BETWEEN FUEL LEVEL
SENSOR AND FUEL SUB LEVEL SENSOR.
Measure the resistance between fuel level sen-
sor harness connector terminal and fuel sub
level sensor harness connector terminal.
Connector & terminal
(R58) No. 1 — (R59) No. 2:
6 CHECK FUEL LEVEL SENSOR GROUND
CIRCUIT.
Measure the resistance between fuel level sen-
sor harness connector terminal and chassis
ground.
Connector & terminal
(R58) No. 4 — Chassis ground:
Combination Meter System
Is the resistance 1.0 — 3.0 "
(FULL) or 61 — 63 "
(EMPTY)?
Is the resistance less than 10
"?
Is the resistance less than 10
"?
Is the resistance less than 10
"?
IDI-10
Check Yes
Go to step 4.
Go to step 5.
Go to step 6.
Replace the meter
case assembly.
No
Replace the fuel
sub level sensor.
Repair the wiring
harness.
Repair the wiring
harness.
Repair the wiring
harness.