Subaru IMPREZA 2002 Service Manual page 598

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE IDIAGNOSTICS)
Step
I CHECK OUTPUT SIGNAL FROM ECM.
1)Turn the ignition switch to ON.
2)Measure the voltage between ECM and
chassis ground.
Connector & terminal
(8134)
No. 1 (+)
-
Chassis ground (-):
~ ~~~~ ~ ~ ~ ~~~~~~~
BW:DTC PI400
-
FUEL TANK PRESSURE CONTROL SOLENOID VALVE CIR-
CUIT LOW INPUT
-
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(S0HC)-43, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(S0HC)-40, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:
Two consecutive driving cycles with fault
Check Yes No
I s
the voltage more than 10 V? Go to step 2. Go to step
3 .
IAlN RELAY
BAITERY
SBF-5
0 -
3 c
n
FUELTANK
PRESSURE
CONTROL
SOLENOID
VALVE
A:@ ECM
B:@
5 6 7 8
5 6
EN1103
EN(S0HC)-274