Subaru B9 TRIBECA WX 2007 Manual page 567

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INSTRUMENTATION/DRIVER INFO
7. CHECK FUEL LEVEL SENSOR
Step
1 CHECK COMMUNICATION ERROR DIS-
PLAY.
1) Turn the ignition switch to ON.
2) Check that the error code is displayed in
odo/trip meter.
2 CHECK FUEL LEVEL SENSOR.
1) Remove the fuel level sensor. <Ref. to
FU(H6DO)-47, REMOVAL, Fuel Level Sensor.>
2) Measure the resistance between fuel level
sensor terminals when the float is in FULL or
EMPTY position.
Terminals
No. 1 — No. 4:
3 CHECK FUEL SUB LEVEL SENSOR.
1) Remove the fuel sub level sensor. <Ref. to
FU(H6DO)-48, REMOVAL, Fuel Sub Level Sen-
sor.>
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
Check
Is the error code "Er xx" dis-
played on odo/trip meter?
Is the resistance 1.0 to 3.0 Ω
(FULL) and 31 to 33 Ω
(EMPTY)?
Is the resistance 1.0 to 3.0 Ω
(FULL) and 61 to 63 Ω
(EMPTY)?
Is the resistance less than 10 Ω? Go to step 5.
Is the resistance less than 10 Ω? Go to step 6.
Is the resistance less than 10 Ω? Replace the meter
IDI-10
Yes No
Check the commu- Go to step 2.
nication circuit.
<Ref. to IDI-11,
COMMUNICA-
TION ERROR DIS-
PLAY,
INSPECTION,
Combination Meter
System.>
Go to step 3.
Replace the fuel
level sensor.
Go to step 4. Replace the fuel
sub level sensor.
Repair the wiring
harness.
Repair the wiring
harness.
Repair the wiring
case assembly. harness.