Subaru 2009 IMPREZA Service Manual page 644

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BP:DTC P0461 FUEL LEVEL SENSOR "A" CIRCUIT RANGE/PERFORMANCE
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-129, DTC P0461 FUEL LEVEL SENSOR "A" CIRCUIT
RANGE/PERFORMANCE, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After repair or replacement of faulty parts, perform Clear Memory Mode <Ref. to EN(H4SO)(diag)-55,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H4SO)(diag)-44, PROCEDURE,
Inspection Mode.>.
Step
1 CHECK FOR ANY OTHER DTC ON DISPLAY. Is any other DTC displayed?
BQ:DTC P0462 FUEL LEVEL SENSOR "A" CIRCUIT LOW
NOTE:
For the diagnostic procedure, refer to DTC P0463. <Ref. to EN(H4SO)(diag)-227, DTC P0463 FUEL LEVEL
SENSOR "A" CIRCUIT HIGH, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
BR:DTC P0463 FUEL LEVEL SENSOR "A" CIRCUIT HIGH
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION<Ref. to GD(H4SO)-133, DTC P0463 FUEL LEVEL SENSOR "A" CIRCUIT
HIGH, Diagnostic Trouble Code (DTC) Detecting Criteria.>
CAUTION:
After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to EN(H4SO)(diag)-55,
OPERATION, Clear Memory Mode.>, and Inspection Mode <Ref. to EN(H4SO)(diag)-44, PROCEDURE,
Inspection Mode.>.
Step
1 CHECK FOR ANY OTHER DTC ON DISPLAY. Is DTC P0462 or P0463 dis-
Check
Check
played on the Subaru Select
Monitor?
EN(H4SO)(diag)-227
ENGINE (DIAGNOSTICS)
Yes No
Check the appro- Replace the fuel
priate DTC using level sensor and
the "List of Diag- fuel sub level sen-
nostic Trouble sor. <Ref. to
Code (DTC)". FU(H4SO)-67,
<Ref. to Fuel Level Sen-
EN(H4SO)(diag)- sor.> <Ref. to
86, List of Diagnos- FU(H4SO)-68,
tic Trouble Code Fuel Sub Level
(DTC).> Sensor.>
Yes No
Check the combi- Even if DTC is
nation meter. <Ref. detected, the cir-
to IDI-8, CHECK cuit has returned to
FUEL LEVEL a normal condition
SENSOR., at this time. Repro-
INSPECTION, duce the failure,
Combination Meter and then perform
System.> the diagnosis
again.
NOTE:
In this case, tem-
porary poor con-
tact of connector
may be the cause.