Subaru FORESTER 2001 Service Manual page 328

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
No.
1 CHECK DTC P0705 ON DISPLAY.
2 CHECK INPUT SIGNAL FOR ECM.
1) Turn ignition switch to ON.
2) Measure voltage between ECM and chas-
sis ground in selector lever "N" and "P" posi-
tions.
Connector & terminal
(B134) No. 8 (+) — Chassis ground (−):
3 CHECK INPUT SIGNAL FOR ECM.
Measure voltage between ECM and chassis
ground in selector lever except for "N" and "P"
positions.
Connector & terminal
(B134) No. 8 (+) — Chassis ground (−):
4 CHECK POOR CONTACT.
Check poor contact in ECM connector.
5 CHECK INPUT SIGNAL FOR ECM.
Measure voltage between ECM and chassis
ground.
Connector & terminal
(B134) No. 8 (+) — Chassis ground (−):
6 CHECK HARNESS BETWEEN ECM AND
INHIBITOR SWITCH CONNECTOR.
1) Turn ignition switch to OFF.
2) Disconnect connectors from ECM and
inhibitor switch.
3) Measure resistance of harness between
ECM and inhibitor switch connector.
Connector & terminal
(B134) No. 8 — (T7) No. 12:
Step
Does the Subaru Select
Monitor or OBD-II general
scan tool indicate DTC
P0705?
Is the voltage less than 1
V?
Is the voltage between 4.5
and 5.5 V?
Is there poor contact in
ECM connector?
Is the voltage more than 10
V?
Is the resistance less than
1 Ω?
EN(DOHC TURBO)-327
Check Yes
Inspect DTC
P0705 using "List
of Diagnostic
Trouble Code
(DTC)". <Ref. to
EN(SOHC)-82,
List of Diagnostic
Trouble Code
(DTC).>
Go to step 3.
Go to step 4.
Repair poor con-
tact in ECM con-
nector.
Repair battery
short circuit in
harness between
ECM and inhibitor
switch connector.
Go to step 7.
Engine (Diagnostics)
No
Go to step 2.
Go to step 5.
Go to step 5.
Contact your
Subaru distributor.
NOTE:
Inspection by
DTM is required,
because probable
cause is deterio-
ration of multiple
parts.
Go to step 6.
Repair harness
and connector.
NOTE:
In this case,
repair the follow-
ing:
¼ Open circuit in
harness between
ECM and inhibitor
switch connector
¼ Poor contact in
coupling connec-
tor
¼ Poor contact in
inhibitor switch
connector
¼ Poor contact in
ECM connector