Subaru IMPREZA 2002 Service Manual page 553

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~
No
Go to step
2.
Step
CHECK ANY OTHER DTC ON DISPLAY.
CHECK FUEL LEVEL SENSOR.
Warning:
than 314 full, be careful because fuel may
spill.
1)Remove the fuel pump assembly. <Ref. to
FU(S0HC)-59, Fuel Pump.>
2)While moving the fuel level sensor float up
and down, make sure that the resistance
between fuel level sensor terminals changes
smoothly.
Terminals
NO. 3
-
NO. 2:
CHECK FUEL SUB LEVEL SENSOR.
I
Does the resistance change
Check
Does the Subaru Select Moni-
tor or OBD-II general scan tool
indicate DTC PO462 or P0463?
Does the resistance change
smoothly?
bination meter and
coupling connec-
tors.
than 314 full, be careful because fuel may
spill.
1)Remove the fuel sub level sensor. <Ref. to
FU(S0HC)-62, Fuel Level Sensor.>
2)While moving the fuel sub level sensor float
up and down, make sure that the resistance
between fuel level sensor terminals changes
smoothly.
Terminals
NO. 1
-
NO. 2:
<Ref. to
FU (S0HC)-62,
Fuel Level Sen-
sor.>
Yes
nspect DTC
'0462 or PO463
Jsing "List of Diag-
iostic Trouble
:ode (DTC)".
<Ref. to
List of Diagnostic
Trouble Code
(DTC).>
Go to step
3.
EN(S0HC)-77,
Warning:
During work procedures, if fuel tank is more
Repair poor con-
tact in ECM, com-
Replace the fuel
level sensor. <Ref
Fuel Level Sen-
sor.>
to FU(S0HC)-62,
Replace the fuel
sub level sensor.
EN(S0HC)-229