Subaru FORESTER 2001 Service Manual page 192

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
1 CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
1) Turn ignition switch to OFF.
2) Disconnect connector from camshaft posi-
tion sensor.
3) Measure resistance of harness between
camshaft position sensor connector and
engine ground.
Connector & terminal
(E15) No. 1 — Engine ground:
2 CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure resistance of harness between cam-
shaft position sensor connector and engine
ground.
Connector & terminal
(E15) No. 1 — Engine ground:
3 CHECK HARNESS BETWEEN CAMSHAFT
POSITION SENSOR AND ECM CONNEC-
TOR.
Measure resistance of harness between cam-
shaft position sensor connector and engine
ground.
Connector & terminal
(E15) No. 2 — Engine ground:
4 CHECK CONDITION OF CAMSHAFT POSI-
TION SENSOR.
5 CHECK CAMSHAFT POSITION SENSOR.
1) Remove camshaft position sensor.
2) Measure resistance between connector
terminals of camshaft position sensor.
Terminals
No. 1 — No. 2:
Step
Is the resistance more than
100 kΩ?
Is the resistance less than
10 Ω?
Is the resistance less than
5 Ω?
Is the camshaft position
sensor installation bolt
tightened securely?
Is the resistance between 1
and 4 kΩ?
EN(DOHC TURBO)-191
Check Yes
Repair harness
and connector.
NOTE:
In this case,
repair the follow-
ing:
¼ Open circuit in
harness between
camshaft position
sensor and ECM
connector
¼ Poor contact in
ECM connector
¼ Poor contact in
coupling connec-
tor
Repair ground
short circuit in
harness between
camshaft position
sensor and ECM
connector.
NOTE:
The harness
between both
connectors are
shielded. Repair
ground short cir-
cuit in harness
together with
shield.
Go to step 4.
Go to step 5.
Repair poor con-
tact in camshaft
position sensor
connector.
Engine (Diagnostics)
No
Go to step 2.
Go to step 3.
Repair harness
and connector.
NOTE:
In this case,
repair the follow-
ing:
¼ Open circuit in
harness between
camshaft position
sensor and ECM
connector
¼ Poor contact in
ECM connector
¼ Poor contact in
coupling connec-
tor
Tighten camshaft
position sensor
installation bolt
securely.
Replace camshaft
position sensor.
<Ref. to
FU(DOHC
TURBO)-31,
Camshaft Position
Sensor.>