Subaru 2009 IMPREZA Service Manual page 645

Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BS:DTC P0464 FUEL LEVEL SENSOR CIRCUIT INTERMITTENT
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION<Ref. to GD(H4SO)-135, DTC P0464 FUEL LEVEL SENSOR CIRCUIT IN-
TERMITTENT, 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 P0464 displayed on the
BT:DTC P0500 VEHICLE SPEED SENSOR "A"
DTC DETECTING CONDITION:
• Immediately at fault recognition
• GENERAL DESCRIPTION <Ref. to GD(H4SO)-138, DTC P0500 VEHICLE SPEED SENSOR "A", Diag-
nostic 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 DTC OF ABS OR VDC.
Check DTC of ABS or VDC.
Check
display?
Check
Is DTC of ABS or VDC dis-
played?
EN(H4SO)(diag)-228
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.
Yes No
Perform the diag- Repair poor con-
nosis according to tact of the ECM
DTC. <Ref. to connector.
ABS(diag)-26, List
of Diagnostic Trou-
ble Code (DTC).>
<Ref. to
VDC(diag)-33, List
of Diagnostic Trou-
ble Code (DTC).>