Subaru Legacy 2002 Service Manual page 2968

6. CHECK FUEL LEVEL SENSOR
No.
1 CHECK FUEL LEVEL SENSOR.
1) Remove the fuel level sensor. <Ref. to
FU-72, REMOVAL, Fuel Level Sensor.> or
<Ref. to FU(w/oOBD)-66, REMOVAL, Fuel
Level Sensor.> or <Ref. to FU(H6)-67,
REMOVAL, Fuel Level Sensor.>
2) Measure the resistance between the fuel
level sensor terminals when setting the float
to FULL and EMPTY position.
Terminals
No. 3 — No. 6
2 CHECK FUEL SUB LEVEL SENSOR.
1) Remove the fuel sub level sensor. <Ref. to
FU-73, REMOVAL, Fuel Sub Level Sensor.>
or <Ref. to FU(w/oOBD)-67, REMOVAL, Fuel
Sub Level Sensor.> or <Ref. to FU(H6)-68,
REMOVAL, Fuel Sub Level Sensor.>
2) Measure the resistance between the fuel
sub level sensor terminals when setting the
float to FULL and EMPTY position.
Terminals
No. 1 — No. 2
3 CHECK HARNESS BETWEEN FUEL SUB
LEVEL SENSOR AND COMBINATION
METER.
1) Disconnect the connector from the combi-
nation meter.
2) Measure the resistance between the fuel
sub level sensor harness connector terminal
and combination meter harness connector
terminal.
Connector & terminal
Normal meter:
(R59) No. 1 — (i10) No. 3:
Luminescent meter (LHD):
(R59) No. 1 — (i11) No. 15:
Luminescent meter (RHD):
(R59) No. 1 — (i10) No. 17:
4 CHECK HARNESS BETWEEN FUEL LEVEL
SENSOR AND FUEL SUB LEVEL SENSOR.
Measure the resistance between the fuel level
sensor harness connector terminal and fuel
sub level sensor harness connector terminal.
Connector & terminal
(R58) No. 6 — (R59) No.2:
5 CHECK FUEL LEVEL SENSOR GROUND
CIRCUIT.
Measure the resistance between the fuel level
sensor harness connector terminal and chas-
sis ground.
Connector & terminal
(R58) No. 3 — Chassis ground:
COMBINATION METER SYSTEM
S907607A1005
Step
Is the resistance 0.5 to 2.5
Ω (FULL) and 52.5 to 54.5
Ω (EMPTY)?
Is the resistance 0.5 to 2.5
Ω (FULL) and 39.5 to 41.5
Ω (EMPTY)?
Is the resistance less than
10 Ω?
Is the resistance less than
10 Ω?
Is the resistance less than
10 Ω?
IDI-11
Check Yes
Go to step 2.
Go to step 3.
Go to step 4.
Go to step 5.
Check the fuel
gauge. <Ref. to
IDI-21,
REMOVAL, Fuel
Gauge.>
Instrumentation/Driver Info
No
Replace the fuel
level sensor.
Replace the fuel
sub level sensor.
Repair the wiring
harness.
Repair the wiring
harness.
Repair the wiring
harness.