Subaru 2002 IMPREZA Service Manual page 336

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICSI
~ ~ ~~ ~ ~
Step
7 CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from ECM.
3)Measure the resistance of harness between
ECM and pressure sensor connector.
Connector & terminal
(8135) NO. 19
-
(E21)
NO.
2 :
8
CHECK HARNESS BETWEEN ECM AND
PRESSURE SENSOR CONNECTOR.
Measure the resistance of harness between
pressure sensor connector and engine ground.
Connector & terminal
(E21) No. 1
-
Engine ground:
9 CHECK POOR CONTACT.
Check poor contact in pressure sensor con-
nector.
~
Check
Is the resistance less than
1
R?
I s
the resistance more than 1
Ma?
Is there poor contact in pres-
sure sensor connector?
Yes
~
Go
to step 8.
Go to step 9.
Repair poor con-
tact in pressure
sensor connector.
~
_ _ _ _ _ _ _
No
Repair open circuit
in harness
between ECM and
pressure sensor
connector.
Repair ground
short circuit in har-
ness between
ECM and pressure
sensor connector.
Replace the pres-
sure sensor. <Ref.
to FU(D0HC
TURBO)-35, Pres-
sure Sensor.>
EN(D0HC TURBO)-1 12