Subaru 2002 IMPREZA Service Manual page 417

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE
ID1
AGNOSTICS)
Yes
Inspect DTC
PO340 using "List
of
Diagnostic Trou-
ble Code (DTC)".
<Ref. to EN(D0HC
TURBO)-80, List
of Diagnostic Trou-
ble Code (DTC).>
Repair harness
and connector.
NOTE:
In this case, repair
the following:
Open circuit in
harness between
camshaft position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
coupling connector
Repair ground
short circuit in har-
ness between
camshaft position
sensor and ECM
connector.
NOTE:
The harness be-
tween both con-
nectors are
shielded. Repair
ground short circuit
in harness togeth-
er with shield.
Go to step 5.
No
Go to step 2.
Go to step 3.
Go to step
4.
Repair harness
Step
CHECK HARNESS BETWEEN CAMSHAFT
TOR.
1)Turn the ignition switch to OFF.
2)Disconnect the connector from camshaft
position sensor.
3)Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
POSITION SENSOR AND ECM CONNEC-
Connector & terminal
(€15) No.
1
-
Engine ground:
Check
I
CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure the resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(€75) No, 1
-
Engine ground:
CHECK ANY OTHER DTC ON DISPLAY.
Does the Subaru Select Moni-
tor or OBD-I1 general scan tool
indicate DTC P0340?
+
Is the resistance less than 10
1
Is the resistance more than
100 kR?
I
I
CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
Is the resistance less than 5
Q?
and connector.
NOTE:
In this case, repai
the following:
Open circuit in
harness between
camshaft position
sensor and ECM
connector
Poor contact in
ECM connector
Poor contact in
coupling connect0
securely?
. -
installation bolt
securely.
EN(D0HC TURBO)-I93